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LP8860CQVFPRQ1 Datasheet(PDF) 6 Page - Texas Instruments |
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LP8860CQVFPRQ1 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 112 page LP8860-Q1 SNVSA21C – MAY 2014 – REVISED DECEMBER 2015 www.ti.com Pin Functions PIN TYPE(1) DESCRIPTION NUMBER NAME 1 C1P A Positive pin for charge pump flying capacitor. If feature is disabled, the pin may be left floating. 2 C1N A Negative pin for charge pump flying capacitor. If feature is disabled, the pin may be left floating. 3 VDD P Input voltage pin for internal circuit. 4 SQW A Square wave output. Can be used for generating extra voltage rail. If unused, the pin may be left floating. 5 VSENSE_N A Pin for input current sense. 6 VSENSE_P A Pin for OVP/UVLO protection and input current sense. 7 ISET A Optional resistor for setting LED maximum current. If feature is disabled, the pin may be left floating. 8 TSENSE A External temperature sensor for LED current control. If feature is disabled, the pin may be left floating. 9 FILTER A Low pass filter for PLL. If feature is disabled, the pin may be left floating. 10 SGND G Signal ground. 11 FAULT OD Fault signal output. If unused, the pin may be left floating. 12 SYNC I Input for synchronizing boost. This pin must be connected to GND if not used. 13 VSYNC I Input for synchronizing PWM generation to display refresh. This pin must be connected to GND if feature is disabled. 14 MISO O Slave data output (SPI). If unused, the pin may be left floating. 15 MOSI/SDA I/O Slave data input (SPI) or serial data (I2C). This pin must be connected to GND if not used. 16 SCLK/SCL I Serial clock for SPI or I2C. This pin must be connected to GND if not used. 17 NSS I Slave select (SPI mode) or fault reset (I2C or standalone mode). This pin must be connected to GND if not used. 18 PWM I PWM dimming input. This pin must be connected to GND if feature is disabled. 19 VDDIO/EN I Enable input pin and reference voltage for digital pins. 20 IF I Interface selection: low – I2C or standalone mode; high – SPI. 21 OUT4 A LED current sink output. If unused, the pin may be left floating. 22 OUT3 A LED current sink output. If unused, the pin may be left floating. 23 LGND G LED current ground. 24 OUT2 A LED current sink output. If unused, the pin may be left floating. 25 OUT1 A LED current sink output. If unused, the pin may be left floating. 26 FB A Boost feedback input. 27 ISENSE_GND A Boost controller’s current sense resistor GND. 28 ISENSE A Boost current sense pin. 29 PGND G Power ground. 30 GD A Gate driver output for boost FET. 31 CPUMP P Charge pump output pin. 32 SD A Power line FET control. If unused, the pin may be left floating. (1) A: Analog pin, G: Ground pin, P: Power pin, I: Input pin, I/O: Input/Output pin, O: Output pin, OD: Open Drain pin 6 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: LP8860-Q1 |
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