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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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RT4832AWSC bảng dữ liệu(PDF) 4 Page - Richtek Technology Corporation |
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RT4832AWSC bảng dữ liệu(HTML) 4 Page - Richtek Technology Corporation |
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4 / 26 page  RT4832A Copyright © 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS4832A-00 January 2017 4 Functional Pin Description Pin No. Pin Name Pin Function A1 POS Positive terminal LDO output. Connect a 10 F ceramic capacitor between this pin and Ground. A2 LCMOUT DSV boost converter output pin. Connect a 10 F ceramic capacitor between this pin and Ground. A3 LCMSW Switching node of DSV boost c onverter. Connect a 2.2μH inductor between LCMSW and VIN. A4 LEDGND Back light LED ground. A5 LEDSW Switch node of boost converter. Connect a 4.7 H to 10H inductor between LEDSW and VIN. B1 ENM Enable the CPOUT. B2 ENP Enable the POS. B3 EN Chip enable. B4 LCMGND DSV boost converter ground pin. B5 LEDOUT Back light LED boost output pin. C1 C1 Fly capacitor 1 positive connection of inverter charge pump. C2 SDA I2C serial data input/output. An external pull-up resistor is required. C3 Txmask Configurable power amplifier synchronization input or configurable active high torch enable. Has an internal pull-down resistor of 400k between TX and ground. C4 AGND Analog ground. C5 LED1 Single output 1 for backlight LED. D1 CPGND Inverter charge pump ground. D2 SCL I2C serial clock input. An external pull-up resistor is required. D3 STRB Active high hardware flash enable. Drive STRB high to turn on flash pulse. Has an internal pull-down resistor of 400k between STRB and ground. D4 PWM PWM dimming input for backlight LED. D5 LED2 Single output 2 for backlight LED. E1 C2 Fly capacitor 1 negative connection of inverter charge pump. Connect a 10 F ceramic capacitor between this pin and C1. E2, F2 FlashLED High-side current source output for flash LED. E3, F3 FlashOUT Step-up flash DC-DC converter output. Connect a 10 F ceramic capacitor between this pin and Ground. E4, F4 FlashSW Drain connection for internal N-MOSFET and synchronous P-MOSFET switches. Connect a 0.47 to 1 H inductor between FlashSW and VIN. E5 VIN Input voltage connection. Connect VIN to the input supply, and bypass to Ground with a 10 F or larger ceramic capacitor. F1 CPOUT Charge pump negative terminal output. Connect a 10 F ceramic capacitor between this pin and ground. F5 FlashGND Flash boost power ground. |
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