LM3631 - LM3631 小型 LCD 显示屏背光和偏置电源

LM3631是TI德州仪器公司的一款背光产品，LM3631是LM3631 小型 LCD 显示屏背光和偏置电源，本站介绍了LM3631的封装应用图解、特点和优点、功能等，并给出了与LM3631相关的TI元器件型号供参考。

LM3631 - LM3631 小型 LCD 显示屏背光和偏置电源 - 背光 - LED驱动器 - 德州仪器

产品特性

Drives up to Two Strings with Maximum of Eight LEDs in Series
- Integrated Backlight Boost with 29-V Maximum Output Voltage
- Two Low-Side Constant-Current LED Drivers with 25-mA Maximum Output Current
Backlight Efficiency Up to 90%
11-Bit Linear or Exponential Dimming with up to 17-Bit Output Resolution
External PWM Input for CABC Backlight Operation
LCD Bias Efficiency > 85%
Programmable Positive LCD bias, 4-V to 6-V, 100-mA Maximum Output Current
Programmable Negative LCD bias, –4-V to –6-V, 80-mA Maximum Output Current
Two Positive Programmable LDO Reference Outputs
- 4-V to 6-V, 50-mA Maximum Output Current
- 1.8-V to 3.3-V, 80-mA Maximum Output Current
2.7-V to 5-V Input Voltage Range

产品应用

Mobile Device LCD Backlighting and Bias

产品说明

The LM3631 is a complete LCD backlight and bias power solution for mobile devices. This one-chip solution has an integrated high-efficiency backlight LED driver and positive/negative bias supplies for LCD drivers addressing the power requirements of high-definition LCDs. Integrated solution allows small solution size while still maintaining high performance.

Capable of driving up to 16 LEDs, the LM3631 is ideal for small- to medium-size displays. Two additional programmable LDO regulator outputs can be used to power display controller, LCD gamma reference, or any additional peripherals.

A high level of integration and programmability allows the LM3631 to address a variety of applications without the need for hardware changes. Voltage levels, backlight configuration, and power sequences are all configurable through I2C interface.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (MAX)
LM3631	DSBGA (24)	2.585 mm x 1.885 mm

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