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general description the MAX14934Cmax14936 are a family of four-channel, 5kv digital isolators utilizing maxims proprietary process technology. for applications requiring 2.75kv of isola - tion, see the max14930Cmax14932. the MAX14934C max14936 family transfers digital signals between cir - cuits with different power domains at ambient tempera - tures up to +125c. the MAX14934Cmax14936 family offers all three pos - sible unidirectional channel configurations to accom - modate any four-channel design, including spi, rs-232, rs-485, and large digital io modules. for applications requiring bidirectional channels, such as i 2 c, refer to the max14937. devices are available with data rates from dc up to 1mbps, 25mbps, or 150mbps. each device is also avail - able in either a default high or default low configuration. the default is the state an output goes to when its input is unpowered. see the ordering information/selector guide for the suffixes associated with each option. independent 1.71v to 5.5v supplies on each side of the isolator also make the devices suitable for use as level translators. the MAX14934Cmax14936 are available in a 16-pin wide body (10.3mm x 7.5mm) soic package. all devices are rated for operation at ambient temperatures of -40c to +125c. benefts and features robust galvanic isolation of digital signals ? withstands 5kv rms for 60s (v iso ) ? constinuously withstands 848v rms (v iowm ) ? 1200v p repetitive peak voltage ( v iorm ) ? withstands 10kv surge per iec 61000-4-5 interfaces directly with most micros and fpgas ? accepts 1.71v to 5.5v supplies many options support broad applications ? 3 data rates (1mbps, 25mbps, 150mbps) ? 3 channel direction confguration ? 2 defaults (high or low) low power consumption at high data rates at 1.8v: ? 2.5 ma per channel typical at 1mbps ? 5.25 ma per channel typical at 100mbps at 3.3v: ? 2.6 ma per channel typical at 1mbps 7.1 ma per channel typical at 100mbps safety regulatory approvals pending ul according to ul1577 cul according to csa bulletin 5a vde 0884-10 applications fieldbus communications for industrial automation isolated spi, rs-232, rs-485/rs-422 general multichannel isolation applications battery management medical systems ordering information/selector guide appears at end of data sheet. 19-7067; rev 0; 9/14 ina1 MAX14934 ina2 ina3 ina4 gnda gndb v dda v ddb outb1 enb outb2 outb3 5kv rms digit al isola to r outb4 outb1 outb2 outb3 inb1 ina1 max14935 ina2 ina3 out a1 enb ena gnda gndb v dda v ddb 5kv rms digit al isola to r outb1 outb2 inb1 inb2 ina1 max14936 ina2 out a1 out a2 enb ena gnda gndb v dda v ddb 5kv rms digit al isola to r functional diagram evaluation kit available MAX14934Cmax14936 four-channel, 5kv rms digital isolators
v dda to gnda, v ddb to gndb ............................. -0.3v to +6v ina_, ena to gnda ................................................ -0.3v to +6v inb_, enb to gndb ............................................... -0.3v to +6v outa_ to gnda .................................... -0.3v to (v dda + 0.3v) outb_ to gndb .................................... -0.3v to (v ddb + 0.3v) short-circuit duration (outa_ to gnda, outb_ to gndb) .................. continuous continuous power dissipation (t a = +70c) wide soic (derate 14.1mw/c above +70c) ...... 1126.8mw operating temperature range ......................... -40c to +125c maximum junction temperature ..................................... +150c storage temperature range ............................ -65c to +150c lead temperature (soldering, 10s) ................................. +300c soldering temperature (reflow) ...................................... +260c wide soic junction-to-ambient thermal resistance ( ja ) .......... 71c/w junction-to-case thermal resistance ( jc ) ............... 23c/w (note 1) (v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (note 2) maxim integrated 2 parameter symbol conditions min typ max units power supply operating supply voltage v dda relative to gnda 1.71 5.5 v v ddb relative to gndb 1.71 5.5 v undervoltage lockout threshold v uvlo _ v dd _ rising 1.45 1.58 1.71 v undervoltage lockout threshold hysteresis v uvlo _ hyst 50 mv dc electrical characteristics absolute maximum ratings package thermal characteristics note 1: package thermal resistances were obtained using the method described in jedec specification jesd51-7, using a four-layer board. for detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial . stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to ab solute maximum rating conditions for extended periods may affect device reliability. MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (note 2) maxim integrated 3 parameter symbol conditions min typ max units supply current (MAX14934_) i dda 500khz square wave v dda = 5v 1.2 1.9 ma v dda = 3.3v 1.2 1.9 v dda = 2.5v 1.2 1.9 v dda = 1.8v 1.1 1.9 12.5mhz square wave (note 3) v dda = 5v 2.1 2.7 v dda = 3.3v 2 2.7 v dda = 2.5v 2 2.7 v dda = 1.8v 2 2.6 50mhz square wave (note 3) v dda = 5v 5 6.6 v dda = 3.3v 4.6 6.1 v dda = 2.5v 4.5 6.0 v dda = 1.8v 4.5 6.0 i ddb 500khz square wave v ddb = 5v 8.1 11.2 v ddb = 3.3v 7.9 11.1 v ddb = 2.5v 7.9 11.0 v ddb = 1.8v 7.7 10.8 12.5mhz square wave (note 3) v ddb = 5v 12.8 15.9 v ddb = 3.3v 11.1 14.2 v ddb = 2.5v 10.2 13.4 v ddb = 1.8v 9.4 12.4 50mhz square wave (note 3) v ddb = 5v 27.2 35.4 v ddb = 3.3v 21.7 27.8 v ddb = 2.5v 17.6 23.0 v ddb = 1.8v 14.4 18.9 dc electrical characteristics (continued) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (note 2) maxim integrated 4 parameter symbol conditions min typ max units supply current (max14935_) i dda 500khz square wave v dda = 5v 3.4 5.3 ma v dda = 3.3v 3.3 5.3 v dda = 2.5v 3.3 5.3 v dda = 1.8v 3.2 5.1 12.5mhz square wave (note 3) v dda = 5v 5.6 7.1 v dda = 3.3v 5 6.6 v dda = 2.5v 4.7 6.4 v dda = 1.8v 4.5 6.1 50mhz square wave (note 3) v dda = 5v 12.4 16.0 v dda = 3.3v 10.1 13.0 v dda = 2.5v 9.1 11.6 v dda = 1.8v 8.2 10.4 i ddb 500khz square wave v ddb = 5v 6.5 9.2 v ddb = 3.3v 6.4 9.1 v ddb = 2.5v 6.3 9.1 v ddb = 1.8v 6.2 8.9 12.5mhz square wave (note 3) v ddb = 5v 10.3 12.8 v ddb = 3.3v 8.9 11.6 v ddb = 2.5v 8.2 11.0 v ddb = 1.8v 7.6 10.3 50mhz square wave (note 3) v ddb = 5v 22.7 29.1 v ddb = 3.3v 17.7 23.0 v ddb = 2.5v 14.7 19.4 v ddb = 1.8v 11.9 15.9 dc electrical characteristics (continued) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (note 2) maxim integrated 5 parameter symbol conditions min typ max units supply current (max14936_) i dda 500khz square wave v dda = 5v 5.2 7.2 ma v dda = 3.3v 5.2 7.2 v dda = 2.5v 5.2 7.2 v dda = 1.8v 5 7.0 12.5mhz square wave (note 3) v dda = 5v 8.2 10.0 v dda = 3.3v 7.2 9.1 v dda = 2.5v 6.7 8.7 v dda = 1.8v 6.3 8.2 50mhz square wave (note 3) v dda = 5v 18 23.3 v dda = 3.3v 14.2 18.4 v dda = 2.5v 12.3 16.1 v dda = 1.8v 10.5 13.6 i ddb 500khz square wave v ddb = 5v 5.2 7.2 v ddb = 3.3v 5.2 7.2 v ddb = 2.5v 5.2 7.2 v ddb = 1.8v 5 7.0 12.5mhz square wave (note 3) v ddb = 5v 8.2 10.0 v ddb = 3.3v 7.2 9.1 v ddb = 2.5v 6.7 8.7 v ddb = 1.8v 6.3 8.2 50mhz square wave (note 3) v ddb = 5v 18 23.3 v ddb = 3.3v 14.2 18.4 v ddb = 2.5v 12.3 16.1 v ddb = 1.8v 10.5 13.6 dc electrical characteristics (continued) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 6 parameter symbol conditions min typ max units logic inputs and outputs input high voltage v ih ena, ina_ relative to gnda 0.7 x v dda v enb, inb_ relative to gndb 0.7 x v ddb input low voltage v il ena, ina_ relative to gnda 1.71v v dda 1.89v 0.6 v 2.25v v dda 5.5v 0.8 enb, inb_ relative to gndb 1.71v v ddb 1.89v 0.6 2.25v v ddb 5.5v 0.8 input hysteresis v hys v ina _ relative to gnda or v inb _ relative to gndb max1493_a/d 410 mv max1493_b/e 410 max1493_c/f 80 input leakage current i l v ina _ = 0 or v dda , v inb _ = 0 or v ddb -1 +1 a input capacitance c in ina_, inb_, f = 1mhz 2 pf en_ pullup current i pu -4 -2.3 -1 a output voltage high v oh v outa _ relative to gnda, i outa _ = -4ma (note 4) v dda - 0.4 v v outb _ relative to gndb, i outb _ = -4ma (note 4) v ddb - 0.4 output voltage low v ol v outa _ relative to gnda, i outa _ = 4ma (note 4) 0.4 v v outb _ relative to gndb, i outb _ = 4ma (note 4) 0.4 (v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (note 2) dc electrical characteristics (continued) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (notes 2, 3) maxim integrated 7 parameter symbol conditions min typ max units input and output channels common-mode transient immunity cmti in__ = gnd_ or v dd_ (note 5) 25 kv/s maximum data rate dr max 1 mbps minimum pulse width pw min ina_ to outb_, inb_ to outa_ 1 s glitch rejection ina_ to outb_, inb_ to outa_ 32 ns propagation delay (figure 1) t plh ina_ to outb_, inb_ to outa_, c l = 15pf 4.5v v dda , v ddb 5.5v 38.2 54.1 ns 3.0v v dda , v ddb 3.6v 38.7 54.6 2.25v v dda , v ddb 2.75v 39.7 55.6 1.71v v dda , v ddb 1.89v 42.9 58.4 t phl ina_ to outb_, inb_ to outa_, c l = 15pf 4.5v v dda , v ddb 5.5v 38.6 55.3 3.0v v dda , v ddb 3.6v 38.9 55.6 2.25v v dda , v ddb 2.75v 39.8 56.1 1.71v v dda , v ddb 1.89v 42.3 60.2 pulse-width distortion pwd |t plh - t phl | 4.5v v dda , v ddb 5.5v 0.4 4.5 ns 3.0v v dda , v ddb 3.6v 0.2 4.3 2.25v v dda , v ddb 2.75v 0.1 3.9 1.71v v dda , v ddb 1.89v 0.6 4.7 propagation delay skew part-to-part (same channel) t splh 4.5v v dda , v ddb 5.5v 26.6 ns 3.0v v dda , v ddb 3.6v 26.6 2.25v v dda , v ddb 2.75v 26.6 1.71v v dda , v ddb 1.89v 26.9 t sphl 4.5v v dda , v ddb 5.5v 27.9 3.0v v dda , v ddb 3.6v 27.7 2.25v v dda , v ddb 2.75v 27.6 1.71v v dda , v ddb 1.89v 29.7 propagation delay skew channel-to-channel (same direction) t scslh 4.5v v dda , v ddb 5.5v 6.7 ns 3.0v v dda , v ddb 3.6v 6.7 2.25v v dda , v ddb 2.75v 6.7 1.71v v dda , v ddb 1.89v 6.7 t scshl 4.5v v dda , v ddb 5.5v 6.7 3.0v v dda , v ddb 3.6v 6.7 2.25v v dda , v ddb 2.75v 6.7 1.71v v dda , v ddb 1.89v 6.7 dynamic electrical characteristics (max1493_a/d) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (notes 2, 3) maxim integrated 8 parameter symbol conditions min typ max units propagation delay skew channel-to-channel (opposing direction) t scolh 4.5v v dda , v ddb 5.5v 26.6 ns 3.0v v dda , v ddb 3.6v 26.6 2.25v v dda , v ddb 2.75v 26.6 1.71v v dda , v ddb 1.89v 26.9 t scohl 4.5v v dda , v ddb 5.5v 27.9 3.0v v dda , v ddb 3.6v 27.7 2.25v v dda , v ddb 2.75v 27.6 1.71v v dda , v ddb 1.89v 29.7 rise time (figure 1) t r outa_/ outb_, 10% to 90%, c l = 15pf 4.5v v dda , v ddb 5.5v 2 ns 3.0v v dda , v ddb 3.6v 2 2.25v v dda , v ddb 2.75v 2 1.71v v dda , v ddb 1.89v 2 fall time (figure 1) t f outa_/ outb_, 90% to 10%, c l = 15pf 4.5v v dda , v ddb 5.5v 2 ns 3.0v v dda , v ddb 3.6v 2 2.25v v dda , v ddb 2.75v 2 1.71v v dda , v ddb 1.89v 2 enable to data valid t en ena to outa_, enb to outb_, c l = 15pf 4.5v v dda , v ddb 5.5v 5.1 ns 3.0v v dda , v ddb 3.6v 5.5 2.25v v dda , v ddb 2.75v 6.7 1.71v v dda , v ddb 1.89v 16.3 enable to three-state t tri ena to outa_, enb to outb_, c l = 15pf 4.5v v dda , v ddb 5.5v 2.7 ns 3.0v v dda , v ddb 3.6v 4.4 2.25v v dda , v ddb 2.75v 7.0 1.71v v dda , v ddb 1.89v 11.7 dynamic electrical characteristics (max1493_a/d) (continued) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (notes 2, 3) maxim integrated 9 parameter symbol conditions min typ max units input and output channels common-mode transient immunity cmti in__ = gnd_ or v dd _ (note 5) 25 kv/s maximum data rate dr max 25 mbps minimum pulse width pw min ina_ to outb_, inb_ to outa_ 40 ns glitch rejection ina_ to outb_, inb_ to outa_ 15 ns propagation delay (figure 1) t plh ina_ to outb_, inb_ to outa_, c l = 15pf 4.5v v dda , v ddb 5.5v 20.9 27.5 ns 3.0v v dda , v ddb 3.6v 21.4 28.7 2.25v v dda , v ddb 2.75v 22.4 31.2 1.71v v dda , v ddb 1.89v 25.7 36.9 t phl ina_ to outb_, inb_ to outa_, c l = 15pf 4.5v v dda , v ddb 5.5v 21.1 28.8 3.0v v dda , v ddb 3.6v 21.5 29.8 2.25v v dda , v ddb 2.75v 22.3 31.9 1.71v v dda , v ddb 1.89v 24.9 37.4 pulse-width distortion pwd |t plh - t phl | 4.5v v dda , v ddb 5.5v 0.2 2.6 ns 3.0v v dda , v ddb 3.6v 0.1 2.6 2.25v v dda , v ddb 2.75v 0.1 2.4 1.71v v dda , v ddb 1.89v 0.7 3.2 propagation delay skew part-to-part (same channel) t splh 4.5v v dda , v ddb 5.5v 11.7 ns 3.0v v dda , v ddb 3.6v 11.5 2.25v v dda , v ddb 2.75v 11.3 1.71v v dda , v ddb 1.89v 13.6 t sphl 4.5v v dda , v ddb 5.5v 9.8 3.0v v dda , v ddb 3.6v 9.8 2.25v v dda , v ddb 2.75v 11.1 1.71v v dda , v ddb 1.89v 14.4 propagation delay skew channel-to-channel (same direction) t scslh 4.5v v dda , v ddb 5.5v 3 ns 3.0v v dda , v ddb 3.6v 3 2.25v v dda , v ddb 2.75v 3 1.71v v dda , v ddb 1.89v 3 t scshl 4.5v v dda , v ddb 5.5v 3 3.0v v dda , v ddb 3.6v 3 2.25v v dda , v ddb 2.75v 3 1.71v v dda , v ddb 1.89v 3 dynamic electrical characteristics (max1493_b/e) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (notes 2, 3) maxim integrated 10 parameter symbol conditions min typ max units propagation delay skew channel to channel (opposing direction) t scolh 4.5v v dda , v ddb 5.5v 11.7 ns 3.0v v dda , v ddb 3.6v 11.5 2.25v v dda , v ddb 2.75v 11.3 1.71v v dda , v ddb 1.89v 13.6 t scohl 4.5v v dda , v ddb 5.5v 9.8 3.0v v dda , v ddb 3.6v 9.8 2.25v v dda , v ddb 2.75v 11.1 1.71v v dda , v ddb 1.89v 14.4 rise time (figure 1) t r outa_/ outb_, 10% to 90%, c l = 15pf 4.5v v dda , v ddb 5.5v 2 ns 3.0v v dda , v ddb 3.6v 2 2.25v v dda , v ddb 2.75v 2 1.71v v dda , v ddb 1.89v 2 fall time (figure 1) t f outa_/ outb_, 90% to 10%, c l = 15pf 4.5v v dda , v ddb 5.5v 2 ns 3.0v v dda , v ddb 3.6v 2 2.25v v dda , v ddb 2.75v 2 1.71v v dda , v ddb 1.89v 2 enable to data valid t en ena to outa_, enb to outb_, c l = 15pf 4.5v v dda , v ddb 5.5v 5.1 ns 3.0v v dda , v ddb 3.6v 5.5 2.25v v dda , v ddb 2.75v 6.7 1.71v v dda , v ddb 1.89v 16.3 enable to three-state t tri ena to outa_, enb to outb_, c l = 15pf 4.5v v dda , v ddb 5.5v 2.7 ns 3.0v v dda , v ddb 3.6v 4.4 2.25v v dda , v ddb 2.75v 7.0 1.71v v dda , v ddb 1.89v 11.7 dynamic electrical characteristics (max1493_b/e) (continued) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (notes 2, 3) maxim integrated 11 parameter symbol conditions min typ max units input and output channels common-mode transient immunity cmti in__ = gnd_ or v dd _ (note 5) 25 kv/s maximum data rate dr max 150 mbps minimum pulse width pw min ina_ to outb_, inb_ to outb_ 6.67 ns propagation delay (figure 1) t plh ina_ to outb_, inb_ to outa_, c l = 15pf 4.5v v dda , v ddb 5.5v 5.1 7.5 ns 3.0v v dda , v ddb 3.6v 5.2 8.1 2.25v v dda , v ddb 2.75v 5.8 9.7 1.71v v dda , v ddb 1.89v 8.1 14 t phl ina_ to outb_, inb_ to outa_, c l = 15pf 4.5v v dda , v ddb 5.5v 4.9 7.4 3.0v v dda , v ddb 3.6v 5.3 8.3 2.25v v dda , v ddb 2.75v 5.9 10.2 1.71v v dda , v ddb 1.89v 8.2 14.9 pulse-width distortion pwd |t plh - t phl | 4.5v v dda , v ddb 5.5v 0.2 1 ns 3.0v v dda , v ddb 3.6v 0.1 1 2.25v v dda , v ddb 2.75v 0.1 1 1.71v v dda , v ddb 1.89v 0.1 1 propagation delay skew part- to-part (same channel) t splh 4.5v v dda , v ddb 5.5v 3.0 ns 3.0v v dda , v ddb 3.6v 3.3 2.25v v dda , v ddb 2.75v 4.3 1.71v v dda , v ddb 1.89v 7.1 t sphl 4.5v v dda , v ddb 5.5v 2.8 3.0v v dda , v ddb 3.6v 3.4 2.25v v dda , v ddb 2.75v 4.6 1.71v v dda , v ddb 1.89v 7.9 propagation delay skew channel-to-channel (same direction) t scslh 4.5v v dda , v ddb 5.5v 0.9 ns 3.0v v dda , v ddb 3.6v 1.2 2.25v v dda , v ddb 2.75v 1.4 1.71v v dda , v ddb 1.89v 1.6 t scshl 4.5v v dda , v ddb 5.5v 0.9 3.0v v dda , v ddb 3.6v 1.2 2.25v v dda , v ddb 2.75v 1.4 1.71v v dda , v ddb 1.89v 1.6 dynamic electrical characteristics (max1493_c/f) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +1.71v to +5.5v, v ddb - v gndb = +1.71v to +5.5v, c l = 15pf, t a = -40c to +125c, unless otherwise noted. typical values are at v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) (notes 2, 3) maxim integrated 12 parameter symbol conditions min typ max units propagation delay skew channel-to-channel (opposing direction) t scolh 4.5v v dda , v ddb 5.5v 3 ns 3.0v v dda , v ddb 3.6v 3.3 2.25v v dda , v ddb 2.75v 4.3 1.71v v dda , v ddb 1.89v 7.1 t scohl 4.5v v dda , v ddb 5.5v 2.8 3.0v v dda , v ddb 3.6v 3.4 2.25v v dda , v ddb 2.75v 4.6 1.71v v dda , v ddb 1.89v 7.9 rise time (figure 1) t r outa_/ outb_, 10% to 90%, c l = 15pf 4.5v v dda , v ddb 5.5v 2 ns 3.0v v dda , v ddb 3.6v 2 2.25v v dda , v ddb 2.75v 2 1.71v v dda , v ddb 1.89v 2 fall time (figure 1) t f outa_/ outb_, 90% to 10%, c l = 15pf 4.5v v dda , v ddb 5.5v 2 ns 3.0v v dda , v ddb 3.6v 2 2.25v v dda , v ddb 2.75v 2 1.71v v dda , v ddb 1.89v 2 enable to data valid t en ena to outa_, enb to outb_, c l = 15pf 4.5v v dda , v ddb 5.5v 5.1 ns 3.0v v dda , v ddb 3.6v 5.5 2.25v v dda , v ddb 2.75v 6.7 1.71v v dda , v ddb 1.89v 16.3 enable to three-state t tri ena to outa_, enb to outb_, c l = 15pf 4.5v v dda , v ddb 5.5v 2.7 ns 3.0v v dda , v ddb 3.6v 4.4 2.25v v dda , v ddb 2.75v 7.0 v dda , v ddb 1.89v 11.7 peak eye diagram jitter t jit(pk) v dda , v ddb = 5.0v 140 ps v dda , v ddb = 3.3v 130 v dda , v ddb = 2.5v 140 v dda , v ddb = 1.8v 160 dynamic electrical characteristics (max1493_c/f) (continued) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
note 2: all devices are 100% production tested at t a = +125c. specifications over temperature are guaranteed by design. note 3: not production tested. guaranteed by design. note 4: all currents into the device are positive. all currents out of the device are negative. note 5: cmti is the maximum sustainable common-mode voltage slew rate while maintaining the correct output. cmti applies to both rising and falling common-mode voltage edges. tested with the transient generator connected between gnda and gndb (v cm = 1000v). maxim integrated 13 ul the MAX14934Cmax14936 are certifed under ul1577. for more details, refer to file e351759. rated up to 5000v rms isolation voltage for basic insulation. cul pending vde pending tuv pending parameter symbol conditions min typ max units esd human body model, all pins 4 kv esd protection safety regulatory approvals (pending) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 14 figure 1. test circuit (a) and timing diagram (b) parameter symbol conditions value units partial discharge test voltage v pr method b1 = v iorm x 1.875 (t = 1s, partial discharge < 5pc) 2250 v p repetitive peak isolation voltage v iorm 1200 v p working isolation voltage v iowm 848 v rms maximum transient isolation voltage v iotm t = 1s 8400 v p maximum withstand isolation voltage v iso f = 60hz, duration = 60s 5000 v rms maximum surge isolation voltage v iosm basic insulation 10 kv insulation resistance r s t a = +150c v io = 500v > 10 9 ? barrier capacitance input to output cio f = 1mhz 2 pf minimum creepage distance cpg wide soic 8 mm minimum clearance distance clr wide soic 8 mm internal clearance distance through insulation 0.015 mm comparative tracking resistance index cti material group ii (iec 60112) 575 climatic category 40/125/21 pollution degree (din vde 0110, table 1) 2 0.1fv ddb v dda test source ina_ outb_ MAX14934 max14935 max14936 gnda gndb v dda v ddb c l r l 0.1f 50 (a) (b) v dda ina1, ina2 50% 50% 50% 50% 90% 10% 50% t sphl t scshl t f t r t splh outb1 outb2 v ddb v ddb gnda gndb gndb insulation characteristics MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
(v dda - v gnda = +3.3v, v ddb - v gndb = +3.3v, v gnda = v gndb , t a = +25c, unless otherwise noted.) maxim integrated 15 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 0 25 50 75 100 125 150 supply current (ma) data rate (mbps) side a supply current vs. data rate driving one channel on side a all other channels low max1493_c/f toc01 v dd_ = 1.8v v dd_ = 2.5v v dd_ = 3.3v v dd_ = 5.0v 0 5 10 15 20 25 0 25 50 75 100 125 150 supply current (ma) data rate (mbps) side b supply current vs. data rate driving one channel on side a all other channels low MAX14934c/f toc02 v dd_ = 1.8v v dd_ = 2.5v v dd_ = 5v v dd_ = 3.3v 10.0 15.0 20.0 25.0 30.0 35.0 -50 -25 0 25 50 75 100 125 150 propagation delay (ns) temperature ( c) propagation delay vs. temperature toc03 v dd_ = 1.8v v dd_ = 2.5v v dd_ = 5v v dd_ = 3.3v v dda = v ddb ina_ to outb_ max1493_b/e 0 2 4 6 8 10 12 14 16 -50 -25 0 25 50 75 100 125 150 propagation delay (ns) temperature ( c) propagation delay vs. temperature v dda = v ddb ina_ to outb_ max1493_c/f toc04 v dd_ = 1.8v v dd_ = 5v v dd_ = 2.5v v dd_ = 3.3v toc07 eye diagram at 150mbps 500mv /div max1493_c/f 30s of prbs 1ns/div 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 1.5 2.5 3.5 4.5 5.5 propagation delay (ns) v dda voltage (v) propagation delay vs. v dda voltage v ddb = 3.3v ina_ to outb_ toc05 max1493_b/e max1493_c/f toc08 10ns/div minimum pulse width 1v/div max1493_b/e in__ out__ 1v/div 40ns 40ns 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 1.5 2.5 3.5 4.5 5.5 propagation delay (ns) v ddb voltage (v) propagation delay vs. v ddb voltage toc06 max1493_c/f max1493_b/e v ddb = 3.3v ina_ to outb_ toc09 2.5ns/div minimum pulse width 1v/div max1493_c/f in__ out__ 1v/div 5ns 5ns typical operating characteristics MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 16 pin name function voltage relative to MAX14934 max14935 max14936 1 1 1 v dda power supply. bypass v dda with a 0.1f ceramic capacitor as close as possible to the pin. gnda 2, 8 2, 8 2, 8 gnda ground reference for side a 3 3 3 ina1 logic input 1 on side a. ina1 corresponds to outb1. gnda 4 4 4 ina2 logic input 2 on side a. ina2 corresponds to outb2. gnda 5 5 ina3 logic input 3 on side a. ina3 corresponds to outb3. gnda 6 ina4 logic input 4 on side a. ina4 corresponds to outb4. gnda 7 i.c. internally connected. leave unconnected or connect to gnda. 6 5 outa1 logic output 1 on side a gnda 6 outa2 logic output 2 on side a gnda 7 7 ena active-high enable for side a. ena has an internal 2a pullup to v dda . gnda 9, 15 9, 15 9, 15 gndb ground reference for side b 10 10 10 enb active-high enable for side b. enb has an internal 2a pullup to v ddb . gndb 11 outb4 logic output 4 on side b gndb 11 12 inb1 logic input 1 on side b. inb1 corresponds to outa1. gndb 11 inb2 logic input 2 on side b. inb2 corresponds to outa2. gndb 12 12 outb3 logic output 3 on side b gndb 13 13 13 outb2 logic output 2 on side b gndb 14 14 14 outb1 logic output 1 on side b gndb 16 16 16 v ddb power supply. bypass v ddb with a 0.1f ceramic capacitor as close as possible to the pin. gndb 16 15 14 13 12 11 9 1 2 3 4 5 6 8 v ddb + gndb outb1 outb2 ina2 ina1 gnda v dda top view MAX14934 outb3 outb4 gndb gnda ina4 10 7 enb i.c. ina3 soic 16 15 14 13 12 11 9 1 2 3 4 5 6 8 v ddb + gndb outb1 outb2 ina2 ina1 gnda v dda max14935 outb3 inb1 gndb gnda outa1 10 7 enb ena ina3 soic 16 15 14 13 12 11 9 1 2 3 4 5 6 8 v ddb + gndb outb1 outb2 ina2 ina1 gnda v dda max14936 inb1 inb2 gndb gnda outa2 10 7 enb ena outa1 soic pin confgurations pin description MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 17 5v out enb v ddb v dda gnda gndb 0.1f 5v 24v 0.1f gpio port 24v digita l i/ o 3.3v outb1 outb2 outb3 outb4 ina1 ina2 ina3 ina4 MAX14934 enb v dda v ddb gndb 5kv rms isolat ion gnda 0.1f 5v 0.1f 3.3v outb1 outb2 outb3 outb4 ina1 ina2 ina3 ina4 MAX14934 typical operating circuit MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 18 ena cs sclk mosi adc miso enb v ddb v dda gnda gndb 0.1f 3.3v 0.1f c 1.8v outb1 outb2 outb3 inb1 gpio sclk mosi miso ina1 ina2 ina3 outa 1 max14935 5kv rms isolat ion ena t1in t2in r1out rs-232 transceiver max13223 r2out enb v ddb v dda gnda gndb 0.1f 5v 0.1f c 2.5v outb1 outb2 inb3 inb4 rt s tx cts rx ina1 ina2 outa 3 outa 4 max14936 5kv rms isola tion typical operating circuit (continued) MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 19 detailed description the MAX14934Cmax14936 are a family of four-channel digital isolators. the MAX14934Cmax14936 family trans - fers digital signals between circuits with different power domains. the devices are rated for 5kv rms isolation volt - age for 60 seconds. this family of digital isolators offers low-power operation, high electromagnetic interference (emi) immunity, and stable temperature performance through maxims proprietary process technology. the devices isolate different ground domains and block high- voltage/high-current transients from sensitive or human interface circuitry. the MAX14934Cmax14936 family offers three unidirec - tional channel configurations for design convenience. the MAX14934 features four channels transferring digital sig - nals in one direction for applications such as isolated digi - tal i/o. the max14935 has three channels transmitting data in one direction and one channel transmitting in the opposite direction, making it ideal for applications such as isolated spi and rs-485 communication. the max14936 provides further design flexibility with two channels in each direction for isolated rs-232 or other applications. devices are available with data rates from dc up to 1mbps (a/d versions), 25mbps (b/e versions), or 150mbps (c/f versions). each device can also be ordered with default- high or default-low outputs. this is the state an output will go to when the input side of the device is unpowered. the devices have two supply inputs, v dda and v ddb , that independently set the logic levels on either side of the device. v dda and v ddb are referenced to gnda and gndb, respectively. the MAX14934Cmax14936 family also features a refresh circuit to ensure output accuracy when an input remains in the same state indefinitely. digital isolation the MAX14934Cmax14936 family provides galvanic iso - lation for digital signals that are transmitted between two ground domains. up to 1200v peak of continuous isola - tion is supported, as well as transient differences of up to 5kv rms for up to 60 seconds. level shifting the wide supply voltage range of both v dda and v ddb allows the MAX14934Cmax14936 family to be used for level translation in addition to isolation. v dda and v ddb can be independently set to any voltage from 1.71v to 5.5v. the supply voltage sets the logic level on the cor - responding side of the isolator. unidirectional channels each channel of the MAX14934Cmax14936 is unidirec - tional; it only passes data in one direction, as indicated in the functional diagram. each device features four unidi - rectional channels that operate independently with guar - anteed data rates from dc up to 1mbps (a/d versions), 25mbps (b/e versions), or 150mbps (c/f versions). the output driver of each channel is push-pull, eliminating the need for pullup resistors. the outputs are able to drive both ttl and cmos logic inputs. startup and undervoltage lockout the v dda and v ddb supplies are both internally moni - tored for undervoltage conditions. undervoltage events can occur during power-up, power-down, or during nor - mal operation due to a sagging supply voltage. when an undervoltage condition is detected on either supply, all outputs go to their default states regardless of the status of the inputs (table 1). figures 2C5 show the behavior of the outputs during power-up and power-down. MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 20 table 1. output behavior during undervoltage conditions figure 2. undervoltage lockout behavior (max1493_a/bc high) figure 4. undervoltage lockout behavior (max1493_d/e/f high) v dda v ddb outa_ max1493_d/e/f input set to high outb_ 3v/div 200s/div figure 5. undervoltage lockout behavior (max1493_d/e/f low) v dda v ddb outa_ max1493_d/e/f input set to low outb_ 3v/div 200s/div figure 3. undervoltage lockout behavior (max1493_a/bc low) v in__ v dda v ddb v outa_ v outb_ 1 powered powered 1 1 0 powered powered 0 0 x undervoltage powered default default x powered undervoltage default default v dda v ddb outa_ max1493_a/b/c input set to high outb_ 3v/div 200s/div v dda v ddb outa_ max1493_a/b/c input set to low outb_ 3v/div 200s/div MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 21 applications information power-supply sequencing the MAX14934Cmax14936 do not require special power- supply sequencing. the logic levels are set independently on either side by v dda and v ddb. each supply can be present over the entire specified range regardless of the level or presence of the other supply. power-supply decoupling to reduce ripple and the chance of introducing data errors, bypass v dda and v ddb with 0.1f ceramic capacitors to gnda and gndb, respectively. place the bypass capaci - tors as close to the power-supply input pins as possible. MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 22 +denotes a lead(pb)-free/rohs-compliant package. **future productcontact factory for availability. part channel configuration data rate (mbps) output temp range (c) pin-package MAX14934aawe+** 4/0 1 default high -40 to +125 16 wide soic MAX14934bawe+ 4/0 25 default high -40 to +125 16 wide soic MAX14934cawe+ 4/0 150 default high -40 to +125 16 wide soic MAX14934dawe+** 4/0 1 default low -40 to +125 16 wide soic MAX14934eawe+ 4/0 25 default low -40 to +125 16 wide soic MAX14934fawe+ 4/0 150 default low -40 to +125 16 wide soic max14935aawe+** 3/1 1 default high -40 to +125 16 wide soic max14935bawe+ 3/1 25 default high -40 to +125 16 wide soic max14935cawe+ 3/1 150 default high -40 to +125 16 wide soic max14935dawe+** 3/1 1 default low -40 to +125 16 wide soic max14935eawe+ 3/1 25 default low -40 to +125 16 wide soic max14935fawe+ 3/1 150 default low -40 to +125 16 wide soic max14936aawe+** 2/2 1 default high -40 to +125 16 wide soic max14936bawe+** 2/2 25 default high -40 to +125 16 wide soic max14936cawe+** 2/2 150 default high -40 to +125 16 wide soic max14936dawe+** 2/2 1 default low -40 to +125 16 wide soic max14936eawe+** 2/2 25 default low -40 to +125 16 wide soic max14936fawe+** 2/2 150 default low -40 to +125 16 wide soic ordering information/selector guide MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
maxim integrated 23 package type package code outline no. land pattern no. 16 wide soic w16m+8 21-0042 90-0107 package information for the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. chip information process: bicmos MAX14934Cmax14936 four-channel, 5kv rms digital isolators www.maximintegrated.com
? 2014 maxim integrated products, inc. 24 revision number revision date description pages changed 0 9/14 initial release revision history maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated reserves the right to change the circuitry and specifcations without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidance. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. MAX14934Cmax14936 four-channel, 5kv rms digital isolators for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com.

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