TPS61151 - TPS61150/1 数据表

TPS61151是TI德州仪器公司的一款背光产品，TPS61151是TPS61150/1 数据表，本站介绍了TPS61151的封装应用图解、特点和优点、功能等，并给出了与TPS61151相关的TI元器件型号供参考。

TPS61151 - TPS61150/1 数据表 - 背光 - LED驱动器 - 德州仪器

产品特性

2.5-V to 6-V Input Voltage Range
Two Outputs Each up to 27 V
0.7-A Integrated Switch
Built-In Power Diode
1.2-MHz Fixed PWM Frequency
Individually Programmable Output Current
Input-to-Output Isolation
Built-In Soft Start
Overvoltage Protection
Up to 83% Efficiency
Up to 30-kHz PWM Dimming Frequency

产品应用

Sub- and Main-Display Backlight in Clamshell Phones
Display and Keypad Backlight
Up to 14-WLED Driver

产品说明

The TPS6115x is a high-frequency boost converter with two regulated current outputs for driving WLEDs. Each current output can be individually programmed through external resistors. There is a dedicated selection pin for each output so the two outputs can be turned on separately or simultaneously. The output current can be reduced by a pulse width modulation (PWM) signal on SEL pins or an analog voltage on the ISET pins, resulting in PWM dimming of the WLEDs. The boost regulator runs at a 1.2-MHz fixed switching frequency to reduce output ripple and avoid audible noises associated with pulse frequency modulation (PFM) control.

The two current outputs are ideal for driving WLED backlights for the sub and main displays in clamshell phones. The two outputs can also be used for driving display and keypad backlights. When used together, the two outputs can drive up to 14 WLEDs for one large display.

In addition to the small inductor, small capacitor, and 3-mm × 3-mm VSON package, the built-in MOSFET and diode eliminate the need for any external power devices. Overall, the device provides an extremely compact solution with high efficiency and plenty of flexibility.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS61150 TPS61151	VSON (10)	3.00 mm × 3.00 mm

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