STP04CM596 4-Bit constant current for power-LED LED sink driver General features ■ 4 constant current output channels ■ Adjustable output current through one external resistor ■ Serial data IN/parallel data OUT ■ Serial OUT change state on the failing edges of clock ■ Four outputs current: 80-500mA ■ 25MHz clock frequency ■ Available in high thermal TSSOP exposed pad. SO-14 Dip-14 TSSOP16 (Exposed pad) Description The STP04CM596 guarantees 16V output driving capability, allowing users to connect more LEDs in series. The high clock frequency, 25 MHz, also satisfies the system requirements which include high volume data transmission. The STP04CM596 is a high-power LED Driver and 4-bit shift register designed for PowerLED applications. The STP04CM596 contains a 4-bit serial IN, parallel OUT shift register that feeds a 4-bit Dtype storage register. In the output stage, four regulated current sources were designed to provide 80-500mA constant current to drive the high powered LEDs. The STP04CM596 is well suited for very high brightness displays and special lighting applications. The STP04CM596 is offered in DIP-14, SO-14 and TSSOP16 Exposed Pad packages. Order codes Part Number Package Packaging STP04CM596B1R DIP-14 25 parts per tube STP04CM596M SO-14 (Tube) 50 parts per tube STP04CM596MTR SO-14 (Tape & Reel) 2500 parts per reel STP04CM596XTTR TSSOP16 Exposed-pad (Tape & Reel) 2500 parts per reel July 2006 Rev 5 1/24 www.st.com 24 Contents STP04CM596 Contents 1 Internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Equivalent circuit of inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 9 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2/24 STP04CM596 1 Internal schematic Internal schematic Figure 1. Block diagram 3/24 Pin settings STP04CM596 2 Pin settings 2.1 Pin connection Figure 2. Pin connection DIP-14/SO-14 2.2 TSSOP16 (Exposed pad) Pin description Table 1. Pin description 4/24 DIP-14 and SO-14 Pin N° TSSOP16 Pin N° Symbol 1 1, 2 GND Ground terminal Name and function 2 3 SDI Serial data input terminal 3 4 CLK Clock input terminal 4 5 LE Latch input terminal 5 6 OUT 0 Output terminal 6 7 OUT 1 Output terminal 7, 8 8, 9, 12 N.C. Not connected 9 10 OUT 2 Output terminal 10 11 OUT 3 Output terminal 11 13 OE 12 14 SDO 13 15 R-EXT Constant current programming 14 16 VDD 5V supply voltage terminal Output enable input terminal (active low) Serial data out terminal STP04CM596 3 Maximum rating Maximum rating 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 2. Absolute maximum ratings Symbol 3.1 Parameter Value Unit VDD Supply voltage 0 to 7 V VO Output voltage -0.5 to 16 V IO Output current 500 mA VI Input voltage -0.4 to VDD+0.4 V 2000 mA 25 MHz IGND GND terminal current fCLK Clock frequency TOPR Operating temperature range -40 to +125 °C TSTG Storage temperature range -55 to +150 °C Thermal data Table 3. Thermal data Symbol RthJA Parameter Thermal resistance junction-ambient DIP-14 SO-14 TSSOP16 Unit 70 (1) 105 (2) 37.5 (3) °C/W 1. 1W of dissipated power, mounted on the board 2. 1W of dissipated power ,mounted on SM PCB1 SGS board 3. Using the PCB Multi-Layer JEDEC Standard Test Boards 5/24 Maximum rating 3.2 STP04CM596 Recommended operating conditions Table 4. Recommended operating conditions Symbol Parameter Test conditions Min Typ Max Unit 3.3 5.0 5.5 V 16.0 V 500 mA VDD Supply voltage VO Output voltage IO Output current OUTn VDD = 5V 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 80 twLAT LE pulse width 20 6.5 ns twCLK CLK pulse width 20 7.0 ns twEN OE pulse width 400 100 ns 20 3.3 ns tSETUP(D) Setup time for DATA tHOLD(D) Hold time for DATA 15 1.5 ns tSETUP(L) Setup time for LATCH 15 5 ns tHOLD(E) Hold time for ENABLE 60 38 ns fCLK Clock frequency TOPR Operating temperature range VDD = 3.0 to 3.6V Cascade operation (1) -40 25 MHz +125 °C 1. If multiple devices are cascaded, it may not be possible achieve the maximum data transfer. Please consider the timing conditions carefully. 6/24 STP04CM596 4 Electrical characteristics Electrical characteristics Table 5. Current accuracy Current accuracy Output voltage Output current Between bits Between ICs Typ. ± 1% ± 6% ≥ 0.7V 80 to 500 mA Table 6. Electrical characteristics (VDD = 5V, TA = 25°C, unless otherwise specified.) Symbol 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 = 16 V 10 µA VOL Output voltage (Serial-OUT) IOL = 1mA 0.4 V VOH Output voltage (Serial-OUT) IOH = -1mA IOL1 Output current IOL2 ∆IOL1 ∆IOL2 RSIN(up) Output current error between bit (All Output ON) VDD-0.4V V VO = 0.7VREXT = 910 Ω 77 82 87 mA VO = 0.7VREXT = 160 Ω 470 500 530 mA VO = 0.7VREXT = 910 Ω 1 ±3 % VO = 0.7VREXT = 160 Ω 0.5 ±3 % 150 300 600 KΩ 100 200 400 KΩ Pull-up resistor RSIN(down) Pull-down resistor IDD(OFF1) REXT = OPEN OUT 0 to 3 = OFF 0.3 0.6 IDD(OFF2) Supply current (OFF) REXT = 470 Ω OUT 0 to 3 = OFF 5.2 8.0 IDD(OFF3) REXT = 250 Ω OUT 0 to 3 = OFF 8.0 12 IDD(ON1) REXT = 470 Ω OUT 0 to 3 = ON 5.6 8.0 REXT = 250 Ω OUT 0 to 3 = ON 8.3 12 Supply current (ON) IDD(ON2) mA 7/24 Electrical characteristics STP04CM596 Table 7. Switching characteristics (VDD=5V, T = 25°C, unless otherwise specified.) Symbol Parameter Test conditions Min Typ Max Unit tPLH1 Propagation delay time, CLK-OUTn, LE = H, OE = L 100 160 ns tPLH2 Propagation delay time, LE-OUTn, OE = L 100 150 ns tPLH3 Propagation delay time, OE-OUTn, LE = H 90 140 ns tPLH Propagation delay time, CLK-SDO 30 40 ns tPHL1 Propagation delay time, CLK-OUTn, LE = H, OE = L 40 60 ns tPHL2 Propagation delay time, LE -OUTn, OE = L 35 50 ns tPHL3 Propagation delay time, OE-OUTn, LE = H 40 70 ns tPHL Propagation delay time, CLK-SDO 30 40 ns 300 400 ns 55 80 ns tr Output rise time (1) tf Output fall time (1) VDD = 5 VVIH = VDD VIL = GNDCL = 13pF IO = 40mAVL = 3 V REXT = 470 ΩRL = 65 Ω VO = 1.6 V, RL = 1 Ω REXT = 470 Ω 1. If multiple devices are cascaded, it may not be possible achieve the maximum data transfer. Please consider the timing conditions carefully. 8/24 STP04CM596 5 Equivalent circuit of inputs and outputs Equivalent circuit of inputs and outputs Figure 3. OE terminal Figure 4. LE terminal Figure 5. CLK, SDI terminal 9/24 Equivalent circuit of inputs and outputs Figure 6. 10/24 SDO terminal STP04CM596 STP04CM596 6 Timing diagrams Timing diagrams Figure 7. Note: Timing diagram The latches circuit holds data when the LE terminal is Low. 1 When the LE terminal is at a High level, the latch circuit holds the data it passes from the input to the output. 2 When the OE terminal is at a Low level, the output terminals OUT0 to OUT3 respond to the data, either ON or OFF. 3 When the OE terminal is at a High level, it switches off all the data on the output terminal. 11/24 Timing diagrams Figure 8. 12/24 STP04CM596 Clock, serial-IN, serial-OUT STP04CM596 Figure 9. Timing diagrams Clock, serial-IN, latch, enable, outputs Figure 10. Outputs 13/24 Test circuit 7 STP04CM596 Test circuit Figure 11. DC characteristic Figure 12. AC characteristic 14/24 STP04CM596 8 Typical characteristics Typical characteristics Figure 13. Output current-REXT resistor Figure 14. Output current vs dropout voltage Figure 15. Output current vs ±∆IOL(%) 15/24 Typical characteristics Figure 16. Blue powerLED typ. application circuit Note: VL will be determined by the VF of the LEDs Table 8. Typ. output waveform with blue powerLEDs 16/24 STP04CM596 STP04CM596 9 Package mechanical data 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 17/24 Package mechanical data STP04CM596 Table 9. DIP-14 mechanical data mm. inch Dim. Min a1 0.51 B 1.39 Typ Min Typ Max 0.020 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 I 5.1 0.201 L Z 3.3 1.27 Figure 17. Package dimensions 18/24 Max 0.130 2.54 0.050 0.100 STP04CM596 Package mechanical data Table 10. SO-14 mechanical data mm. inch Dim. Min Typ A a1 Max Min Typ 1.75 0.1 0.2 a2 Max 0.068 0.003 0.007 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45° (typ.) D 8.55 8.75 0.336 0.344 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 0.68 0.026 8° (max.) Figure 18. Package dimensions 19/24 Package mechanical data STP04CM596 Table 11. TSSOP16 (Exposed pad) mechanical data mm. inch Dim. Min Typ Min Typ Max 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 A1 0.05 A2 0.8 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0079 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 e 1 0.65 BSC K 0° L 0.45 0.60 Figure 19. Package dimensions 20/24 Max 0.0256 BSC 8° 0° 0.75 0.018 8° 0.024 0.030 STP04CM596 Package mechanical data Table 12. Tape and reel SO-14 mm. inch Dim. Min A Typ Max Min 330 Max 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Typ 0.504 22.4 0.519 0.882 Ao 6.4 6.6 0.252 0.260 Bo 9 9.2 0.354 0.362 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 Figure 20. Tape and reel dimensions 21/24 Package mechanical data STP04CM596 Table 13. TSSOP16 tape and reel mm. inch Dim. Min A Typ Max 330 13.2 Typ Max 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 0.504 22.4 0.519 0.882 Ao 6.7 6.9 0.264 0.272 Bo 5.3 5.5 0.209 0.217 Ko 1.6 1.8 0.063 0.071 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 Figure 21. Tape and reel dimensions 22/24 Min STP04CM596 10 Revision history Revision history Table 14. Revision history Date Revision Changes 26-Oct-2006 1 Initial release 05-Apr-2006 2 New template 23-May-2006 3 Updated packaging information 08-Jun-2006 4 Typos in cover page 20-Jun-2006 5 Block diagram updated Figure 1 on page 3, equivalent circuits updated Figure 3, 4, 5, 6, on page 9 and 10 23/24 STP04CM596 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. © 2006 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 24/24