TPS61165 - 采用 2mm x 2mm QFN 封装的白光 LED 驱动器

TPS61165是TI德州仪器公司的一款背光产品，TPS61165是采用 2mm x 2mm QFN 封装的白光 LED 驱动器，本站介绍了TPS61165的封装应用图解、特点和优点、功能等，并给出了与TPS61165相关的TI元器件型号供参考。

TPS61165 - 采用 2mm x 2mm QFN 封装的白光 LED 驱动器 - 背光 - LED驱动器 - 德州仪器

产品特性

3-V to 18-V Input Voltage Range
38-V Open LED Protection
200-mV Reference Voltage With 2% Accuracy
1.2-A Switch FET With 1.2-MHz Switching Frequency
Flexible 1 Wire Digital and PWM Brightness Control
Built-in Soft Start
Up to 90% Efficiency
2-mm × 2-mm × 0.8-mm 6-Pin WSON Package With Thermal Pad, and SOT-23 Package

产品应用

High-Brightness LED Lighting
White LED Backlighting for Media Form Factor Display

产品说明

With a 40-V rated integrated switch FET, the TPS61165 device is a boost converter that drives LEDs in series. The boost converter runs at a 1.2-MHz fixed switching frequency with 1.2-A switch current limit, and allows for the use of a high-brightness LED in general lighting.

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 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 TPS61165 device 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 TPS61165 device to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS61165	SOT-23 (6)	2.90 mm × 1.60 mm
TPS61165	WSON (6)	2.00 mm × 2.00 mm

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