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DM137 Scheda tecnica(PDF) 5 Page - Silicon Touch Technology Inc. |
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DM137 Scheda tecnica(HTML) 5 Page - Silicon Touch Technology Inc. |
5 / 32 page 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC . 16-bit Constant Current LED Driver with Error Detection Version:A.001 Page 4 未經授權而逕予重製、複製、使用或公開本文件,行為人得被追究侵權之相關民刑事責任 Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. DM137 Pin Description PIN No. PIN NAME FUNCTION SSOP28/HSOP28: 1 QFN32: 5 VCC Supply voltage terminal. SSOP28/HSOP28: 2 QFN32: 6 EN Output enable terminal: ‘H’ for all outputs are turned off , ‘L’ for all outputs are active. SSOP28/HSOP28: 3 QFN32: 9 LAT Input terminal of data strobe. Data on shift register goes through at the rising edge of LAT (edge trigger). Otherwise, data is latched. SSOP28/HSOP28: 4 QFN32: 10 CLK Synchronous clock input terminal for serial data transfer. Data is sampled at the rising edge of CLK. SSOP28/HSOP28: 5 QFN32: 11 DAI Serial data input terminal. SSOP28/HSOP28: 6 QFN32: 12 OS Input open/short detection selection: ‘H’ for LED short detection mode, ‘L’ for LED open detection mode, ‘Edge’ *1 for smart detection mode. SSOP28/HSOP28: 7~22 QFN32: 13~28 OUT0~15 Sink constant-current outputs (open-drain). SSOP28/HSOP28: 23 QFN32: 29 DAO Serial data output terminal. SSOP28/HSOP28: 24 QFN32: 30 ALARM Output open drain terminal: (connected to a pull-high resistor) ‘H’ for normal conditions, ‘L’ for LED open/short or chip overheated. SSOP28/HSOP28: 25 QFN32: 31 SDO Serial data output trigger mode selection: ‘H’ means data is shifted out on synchronization to falling edge of CKO, ‘L’ means data is shifted out on synchronization to rising edge of CKO. SSOP28/HSOP28: 26 QFN32: 32 REXT External resistors connected between REXT and GND for output current value setting. SSOP28/HSOP28: 27 QFN32: 3 RESERVED Terminal for testing, user should leave this pin open. SSOP28/HSOP28: 28 Thermal pad QFN32: 1, 2, 4, 7, 8 Thermal pad GND Ground terminal. *1 Rising edge or falling edge. See detailed description (page 14~16). |
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