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IW7032 Datasheet(PDF) 3 Page - Dialog Semiconductor |
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IW7032 Datasheet(HTML) 3 Page - Dialog Semiconductor |
3 / 31 page iW7032 32-Channel LED Driver for LCD Panel Backlighting Rev. 1.3 iW7032 Page 3 Pin # Name Type Pin Description 1 EPGND Ground Exposed bottom pad used as the high current LED return current path. 2 GND1 Ground Signal ground for FB1. 3 FB1 Analog Output Analog DAC output interface with external Buck or Boost converter for LED Boost/Buck group 1. 4, 5, 6, 7, 10, 11, 12, 13 LED00 - LED07 Analog Output LED cathode connection for string 0 to string 7. 8, 9 EPGND Ground Exposed bottom pad used as the high current LED return current path. 14 EN Digital Input Enable Input. Logic high is defined as 3.3V. 15 LDO5 Analog Output Internal +5V LDO output and analog power section supply. 16 LDO3 Analog Output Internal +3.3V LDO output and digital power section supply. 17 EPGND Ground Exposed bottom pad used as the high current LED return current path. 18 VIN Supply Input Input voltage to the main supply rail. 19 AVSS Ground Analog ground return for LDO regulator. 20, 21, 22, 23, 26, 27, 28, 29 LED08 - LED15 Analog Output LED cathode connection for string 8 to string 15. 24, 25 EPGND Ground Exposed bottom pad used as the high current LED return current path. 30 SCK Digital Input SCK, serial clock input for Serial Peripheral Interface (SPI). Logic high is defined as 3.3V. 31 MOSI Digital Input Master output, slave input for SPI. Logic high is defined as 3.3V. 32 MISO Digital 3 State Output Master input, slave output for SPI. Logic high is defined as 3.3V. 33 CSB Digital Input Slave select input for SPI (Chip Select Bar). Active LOW. Logic high is defined as 3.3V. 34 GND2 Ground Signal ground for FB2. 35 FB2 Analog Output Analog DAC output interface with external Buck or Boost converter for LED Boost/Buck group 2. 36, 37, 38, 39, 42, 43, 44, 45 LED16-LED23 Analog Output LED cathode connection for string 16 to string 23. 40, 41 EPGND Ground Exposed bottom pad used as the high current LED return current path. 46 XO Analog Output External crystal connection XO pin with SYNCLK acting as XI pin. 47 SYNCLK Digital Input External clock input for the multiple chip system solution. Logic high is defined as 3.3V. 48 EPGND Ground Exposed bottom pad used as the high current LED return current path. |
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