TPS61150是TI公司的一款背光产品，TPS61150是双路2 x 27V，700mA开关，具有单电感白光 LED 驱动器（多达2 x 6个）的1.2MHz升压转换器，本页介绍了TPS61150的产品说明、应用、特性等，并给出了与TPS61150相关的TI元器件型号供参考。
TPS61150 - 双路2 x 27V，700mA开关，具有单电感白光 LED 驱动器（多达2 x 6个）的1.2MHz升压转换器 - 背光 - LED驱动器 - TI公司（Texas Instruments，德州仪器）
- 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
- Sub- and Main-Display Backlight in Clamshell Phones
- Display and Keypad Backlight
- Up to 14-WLED Driver
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.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TPS61150 TPS61151 | VSON (10) | 3.00 mm × 3.00 mm |
