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october 2009 doc id 15352 rev 3 1/27 27 stp16cpc05 low voltage 16-bit constant current led sink driver with balanced output rise/fall time features low voltage power supply down to 3 v 16 constant current output channels adjustable output current through external resistor serial data in/parallel data out can be driven by a 3.3 v microcontroller output current: 5-100 ma max clock frequency 30 mhz esd protection 2.5 kv hbm, 200 v mm description the stp16cpc05 is a monolithic, low voltage, low current power 16-bit shift register designed for led panel displays. the stp16cpc05 contains a 16-bit serial-in, parallel-out shift register that feeds a 16-bit, d-type storage register. in the output stage, sixteen regulated current sources provide from 5 ma to 100 ma constant current to drive the leds. the stp16cpc05`s output stage is designed to optimize the turn-on and turn-off time, typically 100 ns. the balanced turning on/off improves the system performances reducing the bypass capacitance in applications where parasitic inductance generate ringing or noise in the system. the leds' brightness can be controlled by using an external resistor to adjust the stp16cpc05 output current. the stp16cpc05 guarantees a 20 v output driving capability, allowing users to connect more leds in series.the high clock frequency, 30 mhz, makes the device suitable for high data rate transmission. the 3.3 v voltage supply is useful in applications that interface with a 3.3 v microcontroller. so-24 tssop24 tssop24 (exposed pad) qsop-24 table 1. device summary order codes package packaging stp16cpc05mtr so-24 1000 parts per reel stp16cpc05ttr tssop24 2500 parts per reel STP16CPC05XTTR tssop24 exposed pad 2500 parts per reel stp16cpc05ptr qsop-24 2500 parts per reel www.st.com
contents stp16cpc05 2/27 doc id 15352 rev 3 contents 1 summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 pin connection and description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 equivalent circuit and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 9 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
stp16cpc05 summary description doc id 15352 rev 3 3/27 1 summary description 1.1 pin connection and description figure 2. pin connection note: exposed-pad should be electrically connected to a metal land electrically isolated or connected to ground table 2. typical current accuracy output voltage current accuracy output current v dd temperature between bits between ics 1.3 v 1.5% 5% 20 to 100 ma 3.3 v to 5 v 25 c table 3. pin description pin n symbol name and function 1 gnd ground terminal 2 sdi serial data input terminal 3 clk clock input terminal 4 le latch input terminal 5-20 out 0-15 output terminal 21 oe input terminal of output enable (active low) 22 sdo serial data out terminal 23 r-ext input terminal of an external resistor for constant current programing 24 v dd supply voltage terminal
electrical rati ngs stp16cpc05 4/27 doc id 15352 rev 3 2 electrical ratings 2.1 absolute maximum ratings stressing the device above the rating listed in the ?absolute maximum ratings? table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not imp lied. exposure to absolute ma ximum rating conditions for extended periods may affect device reliability. 2.2 thermal data table 4. absolute maximum ratings symbol parameter value unit v dd supply voltage 0 to 7 v v o output voltage -0.5 to 20 v i o output current 100 ma v i input voltage -0.4 to v dd +0.4 v i gnd gnd terminal current 1600 ma f clk clock frequency 50 mhz table 5. thermal data symbol parameter value unit t opr operating temperature range -40 to +125 c t stg storage temperature range -55 to +150 c r thjc thermal resistance junction-case so-24 60 c/w tssop24 85 c/w tssop24 (1) exposed pad 1. the exposed pad should be soldered directly to the pcb to realize the thermal benefits. 37.5 c/w qsop-24 72 c/w
stp16cpc05 electrical ratings doc id 15352 rev 3 5/27 2.3 recommended operating conditions table 6. recommended operating conditions t a = 25 c symbol parameter test conditions min typ max unit v dd supply voltage 3.0 - 5.5 v v o output voltage - 20 v i o output current outn 3 - 100 ma i oh output current serial-out - +1 ma i ol output current serial-out - -1 ma v ih input voltage 0.7v dd -v dd +0.3 v v il input voltage -0.3 - 0.3v dd v t wlat le pulse width v dd = 3.3 v to 5.0 v 20 - ns t wclk clk pulse width 16 - ns t wen oe pulse width 200 - ns t setup(d) setup time for data 8 - ns t hold(d) hold time for data 4 - ns t setup(l) setup time for latch 5 - ns f clk clock frequency cascade operation (1) v dd = 5 v 1. if the device is connected in ca scade, it may not be possible achiev e the maximum data transfer. please considered the ti mings carefully. -30mhz
electrical characteristics stp16cpc05 6/27 doc id 15352 rev 3 3 electrical characteristics v dd = 3.3 v to 5 v, t a = 25 c, unless otherwise specified table 7. electrical characteristics symbol parameter test conditions min typ max unit v ih input voltage high level 0.7v dd v dd v v il input voltage low level gnd 0.3v dd v i oh output leakage current v oh = 20 v 10 a v ol output voltage (serial-out) i ol = 1 ma 0.4 v v oh output voltage (serial-out) i oh = -1 ma v dd -0.4v v i ol1 output current v o = 0.3 v, r ext = 4.2 k 4.25 5 5.75 ma i ol2 v o = 0.3 v, r ext = 1 k 19 20 21 i ol3 v o = 1.3 v, r ext = 200 96 100 104 i ol1 output current error between bit (all output on) v o = 0.3 v, r ext = 4.2 k 5 8 % i ol2 v o = 0.3 v, r ext = 1 k 1.5 3 i ol3 v o = 1.3 v, r ext = 200 1.2 3 r sin(up) pull-up resistor 150 300 600 k r sin(down) pull-down resistor 100 200 400 k i dd(off1) supply current (off) r ext = 1 k out 0 to 15 = off 4 ma i dd(off2) r ext = 250 out 0 to 15 = off 11.2 i dd(on1) supply current (on) r ext = 1 k out 0 to 15 = on 4.5 i dd(on2) r ext = 250 out 0 to 15 = on 11.7 thermal thermal protection 170 c
stp16cpc05 electrical characteristics doc id 15352 rev 3 7/27 v dd = 5 v, t a = 25 c, unless otherwise specified table 8. switching characteristics symbol parameter test conditions min typ max unit t plh1 propagation delay time, clk-outn , le = h, oe = l v ih = v dd v il = gnd c l = 10 pf i o = 20 ma v l = 3.0 v r ext = 1 k r l = 60 v dd = 3.3 v - 175 227 ns v dd = 5 v - 159 206 t plh2 propagation delay time, le-outn , oe = l v dd = 3.3 v - 176 228 ns v dd = 5 v - 158 205 t plh3 propagation delay time, oe -outn , le = h v dd = 3.3 v - 235 305 ns v dd = 5 v - 192 250 t plh propagation delay time, clk-sdo v dd = 3.3 v - 20 26 ns v dd = 5 v - 14 18 t phl1 propagation delay time, clk-outn , le = h, oe = l v dd = 3.3 v - 70 91 ns v dd = 5 v - 68 88 t phl2 propagation delay time, le-outn , oe = l v dd = 3.3 v - 56 73 ns v dd = 5 v - 54 70 t phl3 propagation delay time, oe -outn , le = h v dd = 3.3 v - 102 132 ns v dd = 5 v - 100 130 t phl propagation delay time, clk-sdo v dd = 3.3 v - 25 32 ns v dd = 5 v - 17 22 t on output rise time 10~90% of voltage waveform v dd = 3.3 v - 116 150 ns v dd = 5 v - 108 140 t off output fall time 90~10% of voltage waveform v dd = 3.3 v - 80 104 ns v dd = 5 v - 80 104 t r clk rise time (1) - 5000 ns t f clk fall time (1) - 5000 ns 1. in order to achieve high cascade data transfe r, please consider tr /tf timings carefully.
equivalent circuit and outputs stp16cpc05 8/27 doc id 15352 rev 3 4 equivalent circuit and outputs figure 3. oe terminal figure 4. le terminal figure 5. clk, sdi terminal
stp16cpc05 equivalent circuit and outputs doc id 15352 rev 3 9/27 figure 6. sdo terminal figure 7. block diagram
timing diagrams stp16cpc05 10/27 doc id 15352 rev 3 5 timing diagrams note: outn = on when dn = h outn = off when dn = l figure 8. timing diagram note: the latches circuit holds data when the le terminal is low. 1 when le terminal is at high level, latch circ uit does not hold the data it passes from the input to the output. 2 when oe terminal is at low level, output terminals out0 to out15 respond to the data, either on or off. 3 when oe terminal is at high level, it switches off all the data on the output terminal. table 9. truth table clock le oe serial-in out0 ............. out7 ................ out15 sdo h l dn dn ..... dn - 7 ..... dn -15 dn - 15 l l dn + 1 no change dn - 14 h l dn + 2 dn + 2 ..... dn - 5 ..... dn -13 dn - 13 x l dn + 3 dn + 2 ..... dn - 5 ..... dn -13 dn - 13 x h dn + 3 off dn - 13
stp16cpc05 timing diagrams doc id 15352 rev 3 11/27 figure 9. clock, serial-in, serial-out
timing diagrams stp16cpc05 12/27 doc id 15352 rev 3 figure 10. clock, serial-in, latch, enable, outputs figure 11. outputs
stp16cpc05 typical characteristics doc id 15352 rev 3 13/27 6 typical characteristics figure 12. output current-r ext resistor table 10. output current-r ext resistor rext ( ) output current (ma) 7370 3 4270 5 2056 10 1006 20 382 50 251 80 200 100 ?
typical characteristics stp16cpc05 14/27 doc id 15352 rev 3 figure 13. output current vs i ol (%) t a = 25 c figure 14. i set vs drop out voltage (v drop ) t a = 25 c iout (ma) avg @3.3 v avg @5.0 v 320 22 537 40 10 79 79 20 160 158 50 422 415 80 700 690 100 880 870
stp16cpc05 typical characteristics doc id 15352 rev 3 15/27 figure 15. i dd on/off, t a = 25 c
test circuit stp16cpc05 16/27 doc id 15352 rev 3 7 test circuit figure 16. dc characteristic figure 17. ac characteristic
stp16cpc05 test circuit doc id 15352 rev 3 17/27 figure 18. typical application schematic note: v l will be determined by the v f of the leds test condition: temp. = 25 c, v dd = 3.3 v, c l = 10 pf, freq. = 1 mhz, stp16cpc05 c = 10 f + figure 19. turn on output current setup
test circuit stp16cpc05 18/27 doc id 15352 rev 3 figure 20. turn off output current setup
stp16cpc05 package mechanical data doc id 15352 rev 3 19/27 8 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack? specifications, grade definitions and product status are available at: www.st.com. ecopack ? is an st trademark. table 11. qsop-24 mechanical data dim. mm. inch min typ max min typ max a 1.54 1.62 1.73 0.061 0.064 0.068 a1 0.1 0.15 0.25 0.004 0.006 0.010 a2 1.47 0.058 b 0.31 0.2 0.012 0.008 c 0.254 0.17 0.010 0.007 d 8.56 8.66 8.76 0.337 0.341 0.345 e 5.8 6 6.2 0.228 0.236 0.244 e1 3.8 3.91 4.01 0.150 0.154 0.158 e 0.635 0.025 l 0.4 0.635 0.89 0.016 0.025 0.035 h 0.25 0.33 0.41 0.010 0.013 0.016 < 8 0
package mechanical data stp16cpc05 20/27 doc id 15352 rev 3 figure 21. qsop-24 package dimensions
stp16cpc05 package mechanical data doc id 15352 rev 3 21/27 table 12. tssop24 mechanical data dim. mm. inch min typ max min typ max a 1.1 0.043 a1 0.05 0.15 0.002 0.006 a2 0.9 0.035 b 0.19 0.30 0.0075 0.0118 c 0.09 0.20 0.0035 0.0079 d 7.7 7.9 0.303 0.311 e 4.3 4.5 0.169 0.177 e 0.65 bsc 0.0256 bsc h 6.25 6.5 0.246 0.256 k 0 8 0 8 l 0.50 0.70 0.020 0.028 figure 22. tssop24 package dimensions
package mechanical data stp16cpc05 22/27 doc id 15352 rev 3 table 13. tape and reel tssop24 dim. mm. inch min typ max min typ max a - 330 - 12.992 c 12.8 - 13.2 0.504 - 0.519 d 20.2 - 0.795 - n 60 - 2.362 - t - 22.4 - 0.882 ao 6.8 - 7 0.268 - 0.276 bo 8.2 - 8.4 0.323 - 0.331 ko 1.7 - 1.9 0.067 - 0.075 po 3.9 - 4.1 0.153 - 0.161 p 11.9 - 12.1 0.468 - 0.476 figure 23. reel dimensions
stp16cpc05 package mechanical data doc id 15352 rev 3 23/27 table 14. so-24 mechanical data dim. mm. inch min typ max min typ max a 2.65 0.104 a1 0.1 0.2 0.004 0.008 a2 2.45 0.096 b 0.35 0.49 0.014 0.019 b1 0.23 0.32 0.009 0.012 c 0.5 0.020 c1 45(typ.) d 15.20 15.60 0.598 0.614 e 10.00 10.65 0.393 0.419 e 1.27 0.050 e3 13.97 0.550 f 7.40 7.60 0.291 0.300 l 0.50 1.27 0.020 0.050 s (max.) 8 figure 24. so-24 package dimensions
package mechanical data stp16cpc05 24/27 doc id 15352 rev 3 table 15. tape and reel so-24 dim. mm. inch min typ max min typ max a - 330 - 12.992 c 12.8 - 13.2 0.504 - 0.519 d 20.2 - 0.795 - n 60 - 2.362 - t - 30.4 - 1.197 ao 10.8 - 11.0 0.425 - 0.433 bo 15.7 - 15.9 0.618 - 0.626 ko 2.9 - 3.1 0.114 - 0.122 po 3.9 - 4.1 0.153 - 0.161 p 11.9 - 12.1 0.468 - 0.476 figure 25. reel dimensions
stp16cpc05 package mechanical data doc id 15352 rev 3 25/27 table 16. tssop24 exposed-pad dim. mm inch min typ max min typ max a 1.2 0.047 a1 0.15 0.004 0.006 a2 0.8 1 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 d 7.7 7.8 7.9 0.303 0.307 0.311 d1 4.7 5.0 5.3 0.185 0.197 0.209 e 6.2 6.4 6.6 0.244 0.252 0.260 e1 4.3 4.4 4.5 0.169 0.173 0.177 e2 2.9 3.2 3.5 0.114 0.126 0.138 e 0.65 0.0256 k 0 8 0 8 l 0.45 0.60 0.75 0.018 0.024 0.030 figure 26. tssop24 dimensions
revision history stp16cpc05 26/27 doc id 15352 rev 3 9 revision history table 17. document revision history date revision changes 30-jan-2009 1 first release 12-may-2009 2 updated table 6 on page 5 29-oct-2009 3 updated note: on page 3
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