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 QSOP-24 TSSOP24 SO-24 TSSOP24 (exposed pad) 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 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. 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. 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 October 2009 Doc ID 15352 Rev 3 1/27 www.st.com 27 Contents STP16CPC05 Contents 1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 2 Pin connection and description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 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 2/27 Doc ID 15352 Rev 3 STP16CPC05 1 Summary description Summary description Table 2. Typical current accuracy Current accuracy Output voltage ≥ 1.3 V 1.1 Between ICs ±1.5% ±5% Output current VDD Temperature ≥ 20 to 100 mA 3.3 V to 5 V 25 °C Pin connection and description Figure 2. Note: Between bits Pin connection Exposed-pad should be electrically connected to a metal land electrically isolated or connected to ground 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 21 OE 22 SDO 23 R-EXT 24 VDD Output terminal Input terminal of output enable (active low) Serial data out terminal Input terminal of an external resistor for constant current programing Supply voltage terminal Doc ID 15352 Rev 3 3/27 Electrical ratings STP16CPC05 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 implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 4. Absolute maximum ratings Symbol 2.2 Parameter Value Unit VDD Supply voltage 0 to 7 V VO Output voltage -0.5 to 20 V IO Output current 100 mA VI Input voltage -0.4 to VDD+0.4 V 1600 mA 50 MHz Value Unit IGND GND terminal current fCLK Clock frequency Thermal data Table 5. Symbol Thermal data Parameter TOPR Operating temperature range -40 to +125 °C TSTG Storage temperature range -55 to +150 °C 60 °C/W 85 °C/W TSSOP24 exposed pad 37.5 °C/W QSOP-24 72 °C/W SO-24 TSSOP24 RthJC Thermal resistance junction-case (1) 1. The exposed pad should be soldered directly to the PCB to realize the thermal benefits. 4/27 Doc ID 15352 Rev 3 STP16CPC05 2.3 Electrical ratings Recommended operating conditions Table 6. Symbol Recommended operating conditions TA = 25 °C Parameter Test conditions Min Typ Max Unit 3.0 - 5.5 V - 20 V - 100 mA VDD Supply voltage VO Output voltage IO Output current OUTn IOH Output current SERIAL-OUT - +1 mA IOL Output current SERIAL-OUT - -1 mA VIH Input voltage 0.7VDD - VDD+0.3 V VIL Input voltage -0.3 - 0.3VDD V twLAT LE pulse width 20 - ns twCLK CLK pulse width 16 - ns twEN OE pulse width 200 - ns 8 - ns 4 - ns 5 - ns 3 VDD = 3.3 V to 5.0 V tSETUP(D) Setup time for DATA tHOLD(D) Hold time for DATA tSETUP(L) Setup time for LATCH fCLK Clock frequency Cascade operation VDD = 5 V (1) - 30 MHz 1. If the device is connected in cascade, it may not be possible achieve the maximum data transfer. Please considered the timings carefully. Doc ID 15352 Rev 3 5/27 Electrical characteristics 3 STP16CPC05 Electrical characteristics VDD = 3.3 V to 5 V, TA = 25 °C, unless otherwise specified Table 7. Symbol Electrical characteristics Parameter Test conditions Min Typ Max Unit VIH Input voltage high level 0.7VDD VDD V VIL Input voltage low level GND 0.3VDD V IOH Output leakage current VOH = 20 V 10 μA VOL Output voltage (Serial-OUT) IOL = 1 mA 0.4 V VOH Output voltage (Serial-OUT) IOH = -1 mA IOL1 IOL2 VO = 0.3 V, Rext = 4.2 kΩ Output current IOL3 ΔIOL1 ΔIOL2 ΔIOL3 RSIN(up) VDD-0.4V 4.25 5 5.75 VO = 0.3 V, Rext = 1 kΩ 19 20 21 VO = 1.3 V, Rext = 200 Ω 96 100 104 ±5 ±8 VO = 0.3 V, Rext = 1 kΩ ± 1.5 ±3 VO = 1.3 V, Rext = 200 Ω ± 1.2 ±3 150 300 600 kΩ 100 200 400 kΩ VO = 0.3 V, Rext = 4.2 kΩ Output current error between bit (All Output ON) V Pull-up resistor RSIN(down) Pull-down resistor REXT = 1 kΩ OUT 0 to 15 = OFF 4 IDD(OFF2) REXT = 250 Ω OUT 0 to 15 = OFF 11.2 IDD(ON1) REXT = 1 kΩ OUT 0 to 15 = ON 4.5 REXT = 250 Ω OUT 0 to 15 = ON 11.7 IDD(OFF1) Supply current (OFF) mA % mA Supply current (ON) IDD(ON2) Thermal 6/27 Thermal protection 170 Doc ID 15352 Rev 3 °C STP16CPC05 Electrical characteristics VDD = 5 V, TA = 25 °C, unless otherwise specified Table 8. Switching characteristics Symbol Parameter tPLH1 Propagation delay time, CLK-OUTn, LE = H, OE = L tPLH2 Propagation delay time, LE-OUTn, OE = L tPLH3 Propagation delay time, OE-OUTn, LE = H tPLH Propagation delay time, CLK-SDO tPHL1 Propagation delay time, CLK-OUTn, LE = H, OE = L tPHL2 Propagation delay time, LE-OUTn, OE = L tPHL3 Propagation delay time, OE-OUTn, LE = H tPHL Propagation delay time, CLK-SDO tON Output rise time 10~90% of voltage waveform tOFF Output fall time 90~10% of voltage waveform tr tf Test conditions VIH = VDD VIL = GND IO = 20 mA REXT = 1 kΩ Min Typ Max VDD = 3.3 V - 175 227 VDD = 5 V - 159 206 VDD = 3.3 V - 176 228 VDD = 5 V - 158 205 VDD = 3.3 V - 235 305 VDD = 5 V - 192 250 VDD = 3.3 V - 20 26 VDD = 5 V - 14 18 VDD = 3.3 V - 70 91 VDD = 5 V - 68 88 VDD = 3.3 V - 56 73 VDD = 5 V - 54 70 VDD = 3.3 V - 102 132 VDD = 5 V - 100 130 VDD = 3.3 V - 25 32 VDD = 5 V - 17 22 VDD = 3.3 V - 116 150 VDD = 5 V - 108 140 VDD = 3.3 V - 80 104 VDD = 5 V - 80 104 ns ns ns ns ns CL = 10 pF VL = 3.0 V RL = 60 Ω ns ns ns ns ns CLK rise time (1) CLK fall time Unit (1) - 5000 ns - 5000 ns 1. In order to achieve high cascade data transfer, please consider tr/tf timings carefully. Doc ID 15352 Rev 3 7/27 Equivalent circuit and outputs 4 8/27 STP16CPC05 Equivalent circuit and outputs Figure 3. OE terminal Figure 4. LE terminal Figure 5. CLK, SDI terminal Doc ID 15352 Rev 3 STP16CPC05 Equivalent circuit and outputs Figure 6. SDO terminal Figure 7. Block diagram Doc ID 15352 Rev 3 9/27 Timing diagrams 5 Timing diagrams Table 9. CLOCK Note: Truth table 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 OUTn = ON when Dn = H OUTn = OFF when Dn = L Figure 8. Note: 10/27 STP16CPC05 Timing diagram The latches circuit holds data when the LE terminal is Low. 1 When LE terminal is at high level, latch circuit 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. Doc ID 15352 Rev 3 STP16CPC05 Figure 9. Timing diagrams Clock, serial-in, serial-out Doc ID 15352 Rev 3 11/27 Timing diagrams STP16CPC05 Figure 10. Clock, serial-in, latch, enable, outputs Figure 11. Outputs 12/27 Doc ID 15352 Rev 3 STP16CPC05 6 Typical characteristics Typical characteristics Figure 12. Output current-REXT resistor Table 10. Output current-REXT resistor Rext (Ω) Output current (mA) 7370 3 4270 5 2056 10 1006 20 382 50 251 80 200 100 Doc ID 15352 Rev 3 13/27 Typical characteristics STP16CPC05 Figure 13. Output current vs ± ΔIOL(%) TA = 25 °C Figure 14. ISET vs drop out voltage (Vdrop) TA = 25 °C 14/27 Iout (mA) Avg @3.3 V Avg @5.0 V 3 20 22 5 37 40 10 79 79 20 160 158 50 422 415 80 700 690 100 880 870 Doc ID 15352 Rev 3 STP16CPC05 Typical characteristics Figure 15. IDD ON/OFF, TA = 25 °C Doc ID 15352 Rev 3 15/27 Test circuit 7 STP16CPC05 Test circuit Figure 16. DC characteristic Figure 17. AC characteristic 16/27 Doc ID 15352 Rev 3 STP16CPC05 Test circuit Figure 18. Typical application schematic C = 10μF + STP16CPC05 Note: VL will be determined by the VF of the LEDs Test condition: Temp. = 25 °C, VDD = 3.3 V, CL = 10 pF, Freq. = 1 MHz, Figure 19. Turn ON output current setup Doc ID 15352 Rev 3 17/27 Test circuit STP16CPC05 Figure 20. Turn OFF output current setup 18/27 Doc ID 15352 Rev 3 STP16CPC05 8 Package mechanical data 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 mm. inch Dim. 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° Doc ID 15352 Rev 3 19/27 Package mechanical data STP16CPC05 Figure 21. QSOP-24 package dimensions 20/27 Doc ID 15352 Rev 3 STP16CPC05 Package mechanical data Table 12. TSSOP24 mechanical data mm. inch Dim. Min Typ A A1 Max Min Typ 1.1 0.05 A2 0.15 Max 0.043 0.002 0.9 0.006 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 Doc ID 15352 Rev 3 21/27 Package mechanical data Table 13. STP16CPC05 Tape and reel TSSOP24 mm. inch Dim. Min A Typ Max - 330 13.2 Typ Max - 12.992 0.504 - 0.519 C 12.8 - 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 22/27 Min Doc ID 15352 Rev 3 STP16CPC05 Package mechanical data Table 14. SO-24 mechanical data mm. inch Dim. Min Typ A a1 Max Min Typ 2.65 0.1 0.104 0.2 a2 Max 0.004 0.008 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 Doc ID 15352 Rev 3 23/27 Package mechanical data Table 15. STP16CPC05 Tape and reel SO-24 mm. inch Dim. Min A Typ Max - 330 13.2 Typ Max - 12.992 0.504 - 0.519 C 12.8 - 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 24/27 Min Doc ID 15352 Rev 3 STP16CPC05 Package mechanical data Table 16. TSSOP24 exposed-pad mm inch Dim. Min Typ Max A 1.2 A1 0.15 A2 0.8 b Typ Max 0.047 0.004 0.006 0.039 0.041 1.05 0.031 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 1 Min 0.65 K 0° L 0.45 0.60 0.0256 8° 0° 0.75 0.018 8° 0.024 0.030 Figure 26. TSSOP24 dimensions Doc ID 15352 Rev 3 25/27 Revision history 9 STP16CPC05 Revision history Table 17. 26/27 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 Doc ID 15352 Rev 3 STP16CPC05 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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