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October 2009 Doc ID 15352 Rev 3 1/27

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

(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

Summary of content (27 pages)

PAGE 1
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.
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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 . . . . . . . . . . . . . . . . .
PAGE 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.
PAGE 4
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.
PAGE 5
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.
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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.
PAGE 7
STP16CPC05 Electrical characteristics VDD = 5 V, TA = 25 °C, unless otherwise specified Table 8.
PAGE 8
Equivalent circuit and outputs 4 8/27 STP16CPC05 Equivalent circuit and outputs Figure 3. OE terminal Figure 4. LE terminal Figure 5.
PAGE 9
STP16CPC05 Equivalent circuit and outputs Figure 6. SDO terminal Figure 7.
PAGE 10
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.
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STP16CPC05 Figure 9.
PAGE 12
Timing diagrams STP16CPC05 Figure 10. Clock, serial-in, latch, enable, outputs Figure 11.
PAGE 13
STP16CPC05 6 Typical characteristics Typical characteristics Figure 12. Output current-REXT resistor Table 10.
PAGE 14
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.
PAGE 15
STP16CPC05 Typical characteristics Figure 15.
PAGE 16
Test circuit 7 STP16CPC05 Test circuit Figure 16. DC characteristic Figure 17.
PAGE 17
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.
PAGE 18
Test circuit STP16CPC05 Figure 20.
PAGE 19
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.
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Package mechanical data STP16CPC05 Figure 21.
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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.
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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.
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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.
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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.
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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.
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Revision history 9 STP16CPC05 Revision history Table 17.
PAGE 27
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.