STP16CPS05
Low voltage 16-bit constant current LED sink driver with auto power saving
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 Auto power-saving feature minimizes the quiescent current if no active data is detected on the latches 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 The output current setup time is 40 ns (typ), thus improving the system performance. The LEDs' brightness can be controlled by using an external resistor to adjust the STP16CPS05 output current. The STP16CPS05 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.
TSSOP24 QSOP-24 SO-24
TSSOP24 (exposed pad)
Description
The STP16CPS05 is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The STP16CPS05 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 Auto power shut-down and auto power-ON feature allows the device to save power without any external intervention.
Table 1.
Device summary
Order codes STP16CPS05MTR STP16CPS05TTR STP16CPS05XTTR STP16CPS05PTR Package SO-24 TSSOP24 TSSOP24 Exposed Pad QSOP-24 Packaging 1000 parts per reel 2500 parts per reel 2500 parts per reel 2500 parts per reel
February 2008
Rev 5
1/26
www.st.com 26
Contents
STP16CPS05
Contents
1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Pin connection and description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 2.2 2.3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 4 5 6 7 8 9
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Equivalent circuit and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2/26
STP16CPS05
Summary description
1
Summary description
Table 2. Typical current accuracy
Current accuracy Output voltage Between bits 1.3 V 1.5 % Between ICs 5% Output current VDD 3.3 V to 5 V Temperature 25 C
20 to 100 mA
1.1
Pin connection and description
Figure 1. Pin connection
Note:
The exposed pad is electrically not connected Table 3.
Pin N 1 2 3 4 5-20 21 22 23 24
Pin description
Symbol GND SDI CLK LE OUT 0-15 OE SDO R-EXT VDD Ground terminal Serial data input terminal Clock input terminal Latch input terminal 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 Name and function
3/26
Electrical ratings
STP16CPS05
2
2.1
Electrical ratings
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. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 4.
Symbol VDD VO IO VI IGND fCLK Supply voltage Output voltage Output current Input voltage GND terminal current Clock frequency
Absolute maximum ratings
Parameter Value 0 to 7 -0.5 to 20 100 -0.4 to VDD+0.4 1600 50 Unit V V mA V mA MHz
2.2
Thermal data
Table 5.
Symbol TOPR TSTG
Thermal data
Parameter Operating temperature range Storage temperature range SO-24 TSSOP24 Value -40 to +125 -55 to +150 60 85 37.5 72 Unit C C C/W C/W C/W C/W
RthJC
Thermal resistance junction to case
TSSOP24 Exposed Pad QSOP-24
(1)
1. The exposed pad should be soldered directly to the PCB to realize the thermal benefits.
4/26
STP16CPS05
Electrical ratings
2.3
Recommended operating conditions
Table 6.
Symbol VDD VO IO IOH IOL VIH VIL twLAT twCLK t wEN
Recommended operating conditions at 25 C
Parameter Supply voltage Output voltage Output current Output current Output current Input voltage Input voltage LE pulse width CLK pulse width OE pulse width VDD = 3.3 V to 5.0 V OUTn SERIAL-OUT SERIAL-OUT 0.7VDD -0.3 20 16 200 20 15 15 Cascade operation
(1)
Test conditions
Min 3.0
Typ
Max 5.5 20
Unit V V mA mA mA V V ns ns ns ns ns ns
3
100 +1 -1 VDD+0.3 0.3VDD
tSETUP(D) Setup time for DATA tHOLD(D) Hold time for DATA tSETUP(L) Setup time for LATCH fCLK Clock frequency
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.
5/26
Electrical characteristics
ST P 1 6 C P S 0 5
3
Electrical characteristics
Table 7.
Symbol VIH VIL IOH VOL VOH IOL1 IOL2 IOL3 IOL1 IOL2 IOL3 RSIN(up) Output current error between bit (All Output ON) Pull-up resistor Output current
Electrical characteristics (VDD = 3.3 V to 5 V, T = 25 C, unless otherwise specified.)
Parameter Input voltage high level Input voltage low level Output leakage current Output voltage (Serial-OUT) Output voltage (Serial-OUT) VOH = 20 V IOL = 1 mA IOH = -1 mA VO = 0.3 V, Rext = 3.9 k VO = 0.3 V, Rext = 970 VO = 1.3 V, Rext = 190 VO = 0.3 VREXT = 3.9 k VO = 0.3 VREXT = 970 VO = 1.3 VREXT =190 150 100 VDD = 3.3 V VDD = 5 V REXT = 970 OUT 0 to 15 = OFF Supply current (OFF) REXT = 240 OUT 0 to 15 = OFF REXT = 970 OUT 0 to 15 = ON Supply current (ON) REXT = 240 OUT 0 to 15 = ON Thermal protection VDD-0.4V 4.25 19 96 5 20 100 5 1.5 1.2 300 200 70 100 4 11.2 mA 4.5 11.7 170 C 5.75 21 104 8 3 3 600 400 120 150 K K A A % mA Test conditions Min 0.7VDD GND Typ Max VDD 0.3VDD 10 0.4 Unit V V A V V
RSIN(down) Pull-down resistor IDD(SH) IDD(OFF1) IDD(OFF2) IDD(ON1) IDD(ON2) Thermal Shut-down current All Latched Data = L
6/26
STP16CPS05
Electrical characteristics
Table 8.
Symbol tPLH1
Switching characteristics (VDD = 5 V, T = 25 C, unless otherwise specified.)
Parameter Propagation delay time, CLK-OUTn, LE = H, OE = L Propagation delay time, LE-OUTn, OE = L Propagation delay time, OE-OUTn, LE = H Propagation delay time, CLK-SDO Propagation delay time, CLK-OUTn, LE = H, OE = L Propagation delay time, LE-OUTn, OE = L Propagation delay time, OE-OUTn, LE = H Propagation delay time, CLK-SDO Output rise time 10~90 % of voltage waveform Output fall time 90~10 % of voltage waveform CLK rise time (1) CLK fall time
(1)
Test conditions VDD = 3.3 V VDD = 5 V VDD = 3.3 V VDD = 5 V VDD = 3.3 V VDD = 5 V VDD = 3.3 V VDD = 5 V VDD = 3.3 V VDD = 3.3 V VIL = GND IO = 20 mA REXT = 1 K VIH = VDD CL = 10 pF VL = 3.0 V RL = 60 VDD = 5 V VDD = 3.3 V VDD = 5 V VDD = 3.3 V VDD = 5 V VDD = 3.3 V VDD = 5 V VDD = 3.3 V VDD = 5 V VDD = 3.3 V VDD = 5 V
Min
Typ 50 28 48 25 55 35 11 8 22 17 7 4 18 15 12 8 40 22 11 18
Max 70
Unit ns
40 70 ns 40 75 ns 45 16 ns 12 30 ns 25 10 ns 6 30 ns 25 18 ns 12 80 ns 35 15 ns 25 5000 5000 ns ns
tPLH2
tPLH3
tPLH
tPHL1
tPHL2
tPHL3
tPHL
tON
tOFF tr tf
1. In order to achieve high cascade data transfer,please consider tr/tf timings carefully.
7/26
Equivalent circuit and outputs
ST P 1 6 C P S 0 5
4
Equivalent circuit and outputs
Figure 2. OE terminal
Figure 3.
LE terminal
Figure 4.
CLK, SDI terminal
8/26
STP16CPS05 Figure 5. SDO terminal
Equivalent circuit and outputs
Figure 6.
Block diagram
9/26
Timing diagrams
STP16CPS05
5
Timing diagrams
Table 9.
CLOCK
Truth table
LE H L H X X OE L L L L H SERIALOUT0 . . .. . .... OUT7 . . .. . .. . .. OUT15 IN Dn Dn + 1 Dn + 2 Dn + 3 Dn + 3 Dn . . . Dn - 7 . . . Dn -15 No change Dn + 2 . . . Dn - 5 . . . Dn -13 Dn + 2 . . . Dn - 5 . . . Dn -13 OFF SDO Dn - 15 Dn - 14 Dn - 13 Dn - 13 Dn - 13
Note:
OUTn = ON when Dn = H OUTn = OFF when Dn = L Figure 7. Timing diagram
Note: 1 2 3
The latches circuit holds data when the LE terminal is Low. When LE terminal is at High level, latch circuit hold the data it passes from the input to the output. When OE terminal is at Low level, output terminals OUT0 to OUT15 respond to the data, either ON or OFF. When OE terminal is at High level, it switches off all the data on the output terminal.
10/26
STP16CPS05
Timing diagrams
Table 10.
CLOCK
Enable IO: shut-down truth table
LE H L H SDI0 . . .. . .. SDI7 . . .. . ... SDI15 All = L No change One or more = H SH Active No change Not active Auto Power-up Not active No change Active OUTn OFF No change X
Note:
At the power-up the device starts in shut-down mode. Figure 8. Clock, serial-in, serial-out
11/26
Timing diagrams Figure 9. Clock, serial-in, latch, enable, outputs
STP16CPS05
Figure 10. Outputs
12/26
STP16CPS05
Typical characteristics
6
Typical characteristics
Figure 11. Output current-REXT resistor
Table 11.
Output current-REXT resistor
Rext (Ohm) 976 780 652 560 488 433 389 354 325 300 278 259 241 229 215 Output current (mA) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
13/26
Typical characteristics
ST P 1 6 C P S 0 5
Figure 12. Output current vs IOL(%)
Figure 13. ISET vs drop out voltage (Vdrop)
14/26
STP16CPS05
Typical characteristics
Figure 14. IDD ON\OFF
Figure 15. Auto power saving
CH1 = Clock
CH2 = SDI
CH3 = Latch
CH4 = Supply Current
Note:
Auto power-saving feature minimizes the quiescent current if no active data is detected on the latches and auto-power-up the device at fist active data latched.
15/26
Test circuit
STP16CPS05
7
Test circuit
Figure 16. DC characteristic
Figure 17. AC characteristic
16/26
STP16CPS05 Figure 18. Typical application schematic
+
Test circuit
C = 10F
Note:
VL will be determined by the VF of the LEDs Test condition: Temp. = 25C, VDD = 3.0V, VIN = VDD, CL = 10pF, Freq. = 1MHz, Ch1 = CLK, Ch2 = SDI, Ch3 = OUTn , Ch4 = VOUT Figure 19. Turn ON output current setup
Figure 20. Turn OFF output current setup
17/26
Package mechanical data
ST P1 6 C PS0 5
8
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com
Table 12.
Dim.
QSOP-24 mechanical data
mm. Min Typ 1.62 0.15 1.47 0.31 0.254 8.56 5.8 3.8 0.2 0.17 8.66 6 3.91 0.635 0.4 0.25 8 0.635 0.33 0 0.89 0.41 0.016 0.010 8.76 6.2 4.01 0.012 0.010 0.337 0.228 0.150 Max 1.73 0.25 Min 0.061 0.004 inch Typ 0.064 0.006 0.058 0.008 0.007 0.341 0.236 0.154 0.025 0.025 0.013 0.035 0.016 0.345 0.244 0.158 Max 0.068 0.010
A A1 A2 b c D E E1 e L h <
1.54 0.1
18/26
STP16CPS05 Figure 21. QSOP-24 package dimensions
Package mechanical data
19/26
Package mechanical data
ST P1 6 C PS0 5
Table 13.
Dim.
TSSOP24 mechanical data
mm. Min Typ Max 1.1 0.05 0.9 0.19 0.09 7.7 4.3 0.65 BSC 6.25 0 0.50 6.5 8 0.70 0.246 0 0.020 0.30 0.20 7.9 4.5 0.0075 0.0035 0.303 0.169 0.0256 BSC 0.256 8 0.028 0.15 0.002 0.035 0.0118 0.0079 0.311 0.177 Min inch Typ Max 0.043 0.006
A A1 A2 b c D E e H K L
Figure 22. TSSOP24 package dimensions
20/26
STP16CPS05 Table 14.
Dim. Min A C D N T Ao Bo Ko Po P 6.8 8.2 1.7 3.9 11.9 12.8 20.2 60 22.4 7 8.4 1.9 4.1 12.1 0.268 0.323 0.067 0.153 0.468 Typ Max 330 13.2 0.504 0.795 2.362 Min
Package mechanical data Tape and reel TSSOP24
mm. inch Typ Max 2.992 0.519
0.882 0.276 0.331 0.075 0.161 0.476
Figure 23. Reel dimensions
21/26
Package mechanical data Table 15.
Dim. Min A a1 a2 b b1 C c1 D E e e3 F L S 7.40 0.50 15.20 10.00 1.27 13.97 7.60 1.27 0.291 0.020 (max.) 8 15.60 10.65 0.35 0.23 0.5 45(typ.) 0.598 0.393 0.050 0.550 0.1 Typ Max 2.65 0.2 2.45 0.49 0.32 0.014 0.009 0.020 0.004 Mi n Typ
ST P1 6 C PS0 5
SO-24 mechanical data
mm. inch Ma x 0.104 0.008 0.096 0.019 0.012
0.614 0.419
0.300 0.050
Figure 24. SO-24 package dimensions
22/26
STP16CPS05 Table 16.
Dim. Min A C D N T Ao Bo Ko Po P 10.8 15.7 2.9 3.9 11.9 12.8 20.2 60 30.4 11.0 15.9 3.1 4.1 12.1 0.425 0.618 0.114 0.153 0.468 Typ Max 330 13.2 0.504 0.795 2.362 Mi n
Package mechanical data Tape and reel SO-24
mm. inch Typ Ma x 12.992 0.519
1.197 0.433 0.626 0.122 0.161 0.476
Figure 25. Reel dimensions
23/26
Package mechanical data Table 17.
Dim. Min A A1 Typ Max 1.2 0.15 0.004 Min Typ
ST P1 6 C PS0 5
TSSOP24 exposed pad
mm inch Max 0.047 0.006
A2 b c D D1 E E1 E2 e K L
0.8 0.19 0.09 7.7 4.7 6.2 4.3 2.9
1
1.05 0.30 0.20
0.031 0.007 0.004 0.303 0.185 0.244 0.169 0.114
0.039
0.041 0.012 0.0089
7.8 5.0 6.4 4.4 3.2 0.65
7.9 5.3 6.6 4.5 3.5
0.307 0.197 0.252 0.173 0.126 0.0256
0.311 0.209 0.260 0.177 0.138
0 0.45 0.60
8 0.75
0 0.018 0.024
8 0.030
Figure 26. TSSOP24 dimensions
24/26
STP16CPS05
Revision history
9
Revision history
Table 18.
Date 28-Jul-2006 22-Dec-2006 17-May-2007 10-Jul-2007 28-Feb-2008
Document revision history
Revision 1 2 3 4 5 First release Final datasheet Updated Table 8 on page 7 Updated Table 9: Truth table on page 10 Updated Table 17: TSSOP24 exposed pad on page 24 Added QSOP-24 package information Table 12 and Figure 21 on page 19 Changes
25/26
STP16CPS05
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. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER'S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
26/26
|
