TPS61161-Q1
- Qualified for Automotive Applications
- 2.7-V to 18-V Input Voltage Range
- 38-V Open LED Protection for 10 LEDs
- 200-mV Reference Voltage With ±2% Accuracy
- Flexible Digital and PWM Brightness Control
- Built-In Soft Start
- Up to 90% Efficiency
- 2-mm × 2-mm × 0.8-mm 6-pin QFN (DRV)
Package With Thermal Pad
With a 40-V rated integrated switch FET, the TPS61161-Q1 is a boost converter that drives up to 10 LEDs in series. The boost converter runs at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components.
The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200 mV, as shown in the typical application. During the operation, the LED current can be controlled using the 1-wire digital interface (EasyScale protocol) through the CTRL pin. Alternatively, a pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61161-Q1 does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the TPS61161-Q1 to prevent the output from exceeding the absolute maximum ratings during open LED conditions.
The TPS61161 is available in a space-saving, 2-mm × 2-mm QFN (DRV) package with thermal pad.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | TPS61161-Q1 White Led Driver with Digital and Pwm Brightness Control for up to 10 LEDs In Series 数据表 (Rev. A) | PDF | HTML | 2014年 11月 6日 | ||
应用手册 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018年 12月 11日 | ||||
应用手册 | How to Use Analog Dimming With TPS6116x | 2011年 8月 5日 |
设计和开发
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
WSON (DRV) | 6 | Ultra Librarian |
订购和质量
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