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dm134 DM135 dm136 version : a.013 issue date : 2006/8/1 file name : sp- dm134,135,136-a.013.doc total pages : 20 16-bit constant current led drivers ?W@^?I? 9?7?1 silicon touch technology inc . 9-7f-1, prosperity road i, science based industrial park, hsin-chu, taiwan 300, r.o.c. tel 886-3-5645656 fax 886-3-5645626 www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 1 - version a.013 dm134 DM135 dm136 16-bit constant current led drivers general description the dm134 DM135 dm136 are constant current driver s specifically designed for led display applications. the value of constant current can be varied using an external resistor. the devices include a 16-bit shift regi ster, latches, and constant curre nt drivers on a single silicon cmos chip. features 5v cmos compatible input maximum clock frequency: 25mhz (cascade operation) maximum output voltage: 17v package: dip24, sop24, ssop24, qfn32, tssop24-exposedpad(DM135) package and pin layout: pin layout and functionality are similar to those of the st2221c. (each characteristic value is different.) constant current matching: (ta = 25 c v dd = 5.0v) chip-to-chip: 10.0% bit-to-bit: dm134: 4.0% @ i out = 30 ~ 90ma 6.0% @ i out = 20 ~ 30ma DM135: 4.0% @ i out = 10 ~ 50ma 6.0% @ i out = 5 ~ 10ma dm136: 4.0% @ i out = 3 ~ 15ma www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 2 - version a.013 pin connection (top view) dip24 sop24 ssop24 pin connection (bottom view) qfn32 gnd serial-in serial-out cloc k out0 out1 out2 out3 out12 out13 out14 out15 r-ext v dd 8 7 6 5 4 3 2 1 17 18 11 12 13 14 15 16 enable latch out4 out5 out6 out7 out11 out10 out9 out8 9 10 19 20 21 22 23 24 gnd gnd vdd rext gnd enable gnd out14 out13 out5 out12 out11 out9 out8 serial_in out10 gnd gnd gnd latch gnd out1 out2 out3 out4 out6 out7 vdd out0 out15 clock serial_out thermal pad 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 3 - version a.013 block diagram timing diagram (note) latches are level sensitive (not edge triggered). latch-terminal = h level, latches become transpar ent; latch-terminal = l level, latches hold data. enable-terminal = h level, all outputs (out0~15) are off. an external resistor is connected between r-ext and gnd for setting up the value of constant current. serial-out changes state on the rising edges of clock. clock serial_in latch enable out0 out1 out2 out3 out13 out14 out15 5v 0v 5v 0v 5v 0v 5v 0v on off on off on off on off on off on off on off 5v 0v serial_out previous data 16 clocks ck ck ck d d d q q q d st q clock i-reg. serial-in latch r-ext serial-out out15 out1 out0 d st st q q d enable www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 4 - version a.013 pin description pin no. pin name function 1 gnd ground terminal 2 serial-in input terminal of a data shift register 3 clock input terminal of a clock for shift register 4 latch input terminal of data strobe 5~20 out0~15 output terminals 21 enable input terminal of output enable (active low) 22 serial-out output terminal of a data shift register 23 r-ext input terminal of an external resistor 24 v dd 5v supply voltage terminal equivalent circuit of inputs and outputs 1. enable terminal 2. latch terminal 3. clock, serial-in terminal 4. serial-out terminal clock, serial-in gnd v dd gnd v dd rin (up) enable serial-out gnd v dd latch gnd v dd rin www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 5 - version a.013 maximum ratings (ta = 25 c, tj (max) = 150 c) characteristic symbol rating unit supply voltage v dd 0 ~ 7.0 v input voltage v in -0.4 ~ vdd+0.4 v 100 ( dm134 ) 60 ( DM135 ) output current i out 20 ( dm136 ) ma output voltage v out -0.3 ~ 17 v clock frequency f clk 25 mhz 1600 ( dm134 ) 960 ( DM135 ) gnd terminal current i gnd 320 ( dm136 ) ma 2.5 (dip-24 : ta=25 c) 1.58 (sop-24 : ta=25 c) 1.39 (ssop-24 : ta=25 c) power dissipation (on 4-layer pcb) p d 3.08 (qfn-32 : ta=25 c) w 50.0 (dip-24) 79.2 (sop-24) 90.2 (ssop-24) 31 (tssop-24, exposed pad) thermal resistance (on 4-layer pcb) r th(j-a) 40.6 (qfn-32) c/w operating temperature topr -40 ~ 85 c storage temperature t stg -55 ~ 150 c recommended operating condition characteristic symbol condition min. typ. max. unit supply voltage v dd ? 4.5 5.0 5.5 v output voltage v out ? ? ? 17 v operating temperature t opr ? -40 ? 85 i o outn 5 ? 85 i oh serial-out ? ? 1.0 output current i ol serial-out ? ? -1.0 ma v ih ? ? ? -0.3 ? 0.3vdd v latch pulse width tw lat 15 ? ? ns clock pulse width tw clk 15 ? ? ns set-up time for data tsetup (d) 10 ? ? ns hold time for data thold (d) 5 ? ? ns set-up time for latch tsetup (l) v dd = 4.5 ~ 5.5 v 15 ? ? ns clock frequency f clk cascade operation ? ? 25 mhz www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 6 - version a.013 electrical characteristics (vdd = 5.0 v, ta = 25 c unless otherwise noted) characteristic symbol condition min. typ. max. unit input voltage ?h? level vih ? 0.7vdd ? vdd input voltage ?l? level vil ? gnd ? 0.3vdd v output leakage current ioh voh = 17 v ? ? 1.0 ua vol iol = 1.0 ma ? ? 0.4 output voltage ( s - out) voh ioh = -1.0 ma 4.6 ? ? v dm134 rext = 377 DM135 rext = 1260 output current (bit-bit) iout dm136 vout = 1.2v (1 channel on) rext = 3830 ? 1.5 4 % dm134 rext = 377 36.0 40.0 44.0 DM135 rext = 1260 9.38 10.42 11.46 output current (chip-chip) iout dm136 vout = 1.2v (1 channel on) rext = 3830 2.7 3 3.3 ma i dm134 rext = 377 i DM135 rext =1260 output voltage regulation i dm136 vout = 1.2v ~ 5.0v (% / vout) rext = 3830 ? 0.1 0.5 % / v supply voltage regulation % / vdd vdd = 4.5v ~ 5.5v ? 0.5 1.5 % / v pull-up resistor rin(up) ? 150 300 600 k pull-down resistor rin(down) ? 100 200 400 k rext = open, all outputs off ? 7.4 10 dm134 rext = 210 , all outputs off ? 24 34 rext = open, all outputs off ? 7.4 10 DM135 rext = 630 , all outputs off ? 16 22 rext = open, all outputs off ? 7.4 10 supply current ?off? idd (off) dm136 rext = 2100 , all outputs off ? 12 17 dm134 rext = 210 , all outputs on ? 26 36 DM135 rext = 630 , all outputs on ? 18 25 supply current ?on? idd (on) dm136 rext = 2100 , all outputs on ? 14 20 ma www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 7 - version a.013 switching characteristics (ta = 25 c unless otherwise noted) dm134 characteristic symbol condition min. typ. max. unit enable-outn ? 15 30 propagation delay time (?l? to ?h?) clk-sout tp lh ? 20 25 ns enable-outn ? 25 30 propagation delay time (?h? to ?l?) clk-sout tp hl ? 20 25 ns output current rise time t or 30 75 150 ns output current fall time t of vdd=5.0v vih=vdd vil=gnd rext=210 vl=5.0v rl=47 cl=13pf 10 20 40 ns DM135 characteristic symbol condition min. typ. max. unit enable-outn ? 20 40 propagation delay time (?l? to ?h?) clk-sout tp lh ? 20 25 ns enable-outn ? 30 60 propagation delay time (?h? to ?l?) clk-sout tp hl ? 20 25 ns output current rise time t or 25 50 100 ns output current fall time t of vdd=5.0v vih=vdd vil=gnd rext=630 vl=5.0v rl=150 cl=13pf 15 30 60 ns dm136 characteristic symbol condition min. typ. max. unit enable-outn ? 20 40 propagation delay time (?l? to ?h?) clk-sout tp lh ? 20 25 ns enable-outn ? 60 120 propagation delay time (?h? to ?l?) clk-sout tp hl ? 20 25 ns output current rise time t or 40 95 180 ns output current fall time t of vdd=5.0v vih=vdd vil=gnd rext=2100 vl=5.0v rl=475 cl=13pf 15 35 70 ns www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 8 - version a.013 test circuit dc characteristic ac characteristic i dd i il ,i ih v il ,v ih i re f i ol serial-out out15 out0 v dd gnd r-ext latch serial-in clock enable v il ,v ih v l c l c l c l r l r l serial-out out15 out0 v dd gnd r-ext latch sw- matrix serial-in clock enable www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 9 - version a.013 timing diagram 1. clock-serial-in, serial-out, outn (current) 2. clock-latch 3. enable-outn (current) 50% 50% 50% 50% t phl t plh outn(current) enable t hold t setup 50% 50% 90% 50% 50% 10% 10% 50% 90% serial-in outn (current) clock t wclk t f t r 90% 50% 10% 10% 50% 90% t of t phl t plh t or t wclk serial-out 50% 50% t plh t phl 50% ?l? level = data hold serial-in latch clock t setup(l) 50% t hold(l) 50% www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 10 - version a.013 output current vs. external resistor dm134 DM135 dm136 note: the resistor should be placed as close to th e rext terminal as possi ble to avoid the noise influence. conditions: vout=1.8v, vref=1.27v dm134: iout vref / rext * 12 DM135: iout vref / rext * 10.3 dm136: iout vref / rext * 9 iout - rext ( dm134 ) 0.00 20.00 40.00 60.00 80.00 100.00 120.00 0 200 400 600 800 rext (ohm) iout (ma) iout - rext ( dm136 ) 0 2 4 6 8 10 12 14 16 18 20 0 2000 4000 6000 8000 rext (ohm) iout (ma) iout - rext ( DM135 ) 0.00 10.00 20.00 30.00 40.00 50.00 60.00 0 2000 4000 6000 8000 10000 12000 rext (ohm) iout (ma) www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 11 - version a.013 output current performa nce vs. output voltage dm134 DM135 dm136 note: in order to obtain a good consta nt current output, a suitable out put voltage is necessary. users can get related information about the minimum ou tput voltage from the above graphs. even under the same output current condition, the minimum out put voltage required for each part is different. iout - vout(min) 0 10 20 30 40 50 60 70 80 90 00.511.52 vout (min) (v) iout (ma) dm134 DM135 dm136 iout - vout ( dm134) 0.00 20.00 40.00 60.00 80.00 100.00 012345 vout (v) iout (ma) iout - vout ( DM135 ) 0 10 20 30 40 50 60 012345 vout (v) iout (ma) iout - vout ( dm136 ) 0.00 3.00 6.00 9.00 12.00 15.00 012345 vout (v) iout (ma) www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 12 - version a.013 note as the power dissipation of a semiconducto r chip is limited by its package and ambient temperature, this device requires a maximum out put current given by an operating condition. the maximum allowable power consumption (pd (max)) of this device is calculated as follows: ) / ( rth ) )( ) emperature (ambient t ta - (max) e) temperatur (junction (tj ) (max)( watt c c watt pd = based on the pd (max), the maximum allowable current can be calculated as follows: iout = ( pd ? v dd ? i dd ) / ( # outputs ? vo ? duty ) imax - ta ( dm136 ) 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 0 20 40 60 80 100 120 140 160 ta imax (ma) imax - ta ( DM135 ) 0.00 10.00 20.00 30.00 40.00 50.00 60.00 0 20406080100120140160 ta imax (ma) imax - ta ( dm134 ) 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 0 20 40 60 80 100 120 140 160 ta imax (ma) pd - ta 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 0 20 40 60 80 100 120 140 160 ta pd (w) v dd = 5v vout = 1.5v 16bit active v dd = 5v vout = 1.5v 16bit active v dd = 5v vout = 1.5v 16bit active dip qfn ssop dip qfn ssop ssop qfn dip ssop dip qfn sop sop sop sop www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 13 - version a.013 system configuration example [1] output current (i out ) sink current is set by the external resistor as shown in the figure of iout vs. rext. [2] led supply voltage (v led ) setup v led = v ce ( t r v sat ) + v f ( led forward voltage ) + v o ( ic supply voltage) to prevent too much power from dissipating by the higher v led of the device, an additional r can be used to reduce the vout wh en the outputs consume current is as follows: r = (max) * (max) (min) bit i v v v v o o f ce led ? ? ? note this device has only one ground pin shared by signal, output sink current, and power ground. it is advisable to pattern the ground layout with mini mized inductance so that the switching noise induced by the input signals and the output sink current would not cause chip malfunction. to prevent drivers? outputs from damaging by overshoot stresses, it is also advisable not to turn off the drivers and scan transistors simultaneously. for the qf n package, the ic?s thermal pad, which is internally connected to the bottom side of chip, should be connected to gn d. in addition, a good pcb layout pattern of the thermal pad is required in order to have a better performance in thermal effect. serial-out v led = 3~4 (v) out15 out0 gnd r-ext latch cpu serial-in scan clock serial-out out15 out0 gnd r-ext latch serial-in clock r v ce vf vo enable enable www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 14 - version a.013 package outline p-dip 24 unit inch 0.100typ 0.018typ 0.060typ 0.130 0.02 seating plane 0.130 0.03 0.258 0.02 =7 ~15 www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 15 - version a.013 package outline sop24 0.295 0.013 0.050typ 0.016typ 0.600 0.014 0.099 0.006 0.012max 0.004max = 0~8 0.010 0.035 0.015 unit inch www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 16 - version a.013 package outline ssop24 0.154 0.008 0.025typ 0.012typ 0.341 0.004 0.064 0.011 0.01max 0.004max = 0~8 0.010 0.025 0.025 unit inch www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 17 - version a.013 package outline tssop24 (exposed pad) notes: 1. dimension d does not include mode flash, protrusions or gate burrs shall not exceed 0.15 per side. 2. dimension e1 does not include interlead flash or protrusion interlead flash or protrusion shall not exceed 0.25 per side. 3. dimension b does not include damber protrusion. allowable dambar protrusion shall be 0.08mm total in excess of the b dimension at maximum material condition. dambar cannor be located on the lower radius of the foot. minimum space between protrusion and adjacent lead is 0.07mm. 4. dimensions d and e1 to be determined at datum plane. jedec s l e e1 e d b a2 a1 a symbol min. nom. max. dimension in mm 1.2 0.00 0.15 0.80 1.00 1.05 0.19 0.3 7.7 7.8 7.9 6.40 bsc 4.3 4.4 4.5 0.45 0.60 0.75 0.2 0.5 0 8 mo - 153 (adt) 0.65 bsc l1 1.00 ref d1 3.61 ref e2 1.95 ref gauge plane 0.25 mm l seating plane l1 s detail a b a1 e a 0.05mm c a2 d e1 e d1 e2 detail a www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 18 - version a.013 package outline qfn32 dimension (mm) dimension (mil) symbol min. nom. max. min. nom. max. a 0.70 0.75 0.80 27.6 29.5 31.5 a1 0 0.02 0.05 0 0.79 1.97 a3 0.25 ref 9.84 ref b 0.18 0.23 0.30 7.09 9.06 11.81 d 5.00 bsc 196.85 bsc d2 1.25 2.70 3.25 49.21 106.30 127.95 e 5.00 bsc 196.85 bsc e2 1.25 2.70 3.25 49.21 106.30 127.95 e 0.50 bsc 19.69 bsc l 0.30 0.40 0.50 11.81 15.75 19.69 y 0.10 3.94 note: 1.dimensioning and tolerancing conform to asme y145.5m-1994. 2. refer to jedec std. mo-220 whhd-2 issue a 16 9 17 24 25 32 1 8 bottom view d2 d e b e l e e2 seating plane a3 a1 a y c 0.10 c 0.10 m cab top view 916 817 24 1 32 25 0.25 c 0.25 c www..net
d m134 DM135 dm13 6 c???? silicon touch technology inc. 16-bit constant current led drivers - 19 - version a.013 the products listed herein are designed for ordinary electronic applications, such as electrical appliances, audio-vi sual equipment, communications devices and so on. hence, it is advisable that the devices should not be used in medical instruments, surgical implants, aerospace machinery, nuclear power control systems, disaster/crime-prevention equipment and the like. misusing those products may directly or indirectly endanger human life, or cause injury and property loss. silicon touch technology, inc. will not take any responsibilities regarding the misusage of the products mentioned above. anyone who purchases any products described herein with the above-mentioned intention or with such misused applicati ons should accept full responsibility and indemnify. silicon touch technology, inc. and its distributors and all their officers and employees shall defend jointl y and severally against any and all claims and litigation and all damages, cost and expe nses associated with such intention and manipulation. www..net

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