STMicroelectronics STLA02 White LED Driver for Display Backlight
The STMicroelectronics STLA02 White LED Driver for Display Backlight is capable of driving 6 white LEDs in series. The STMicroelectronics STLA02 is a synchronous boost converter with high-side control that operates from a 2.5 to 18V input voltage and can provide an output voltage up to 27V. The output current of up to 20mA is set using an external resistor. The EN pin allows this white LED driver to be switched on and off. The EN pin is also dedicated to PWM dimming of the output current. The STMicroelectronics STLA02 is ideal for use in PDAs and other handheld devices, cell phones, and MP3 players.
Features
- Boost DC-DC converter
- Drives up to 6 LEDs with a total current up to 20mA
- Output power capability up to 500mW
- Input voltage range 2.5V to 18V
- Output current control
- PWM input for the output current dimming with 300:1 dimming range
- 2.3MHz switching frequency
- 350mA integrated switch
- Overvoltage protection
- Chip overtemperature detection and protection
- Soft-start implemented
- Package DFN6 2mm x 2mm
Applications
- PDA and handheld devices
- Cellular phones
- MP3 players
Block Diagram
发布日期: 2011-10-26
| 更新日期: 2022-03-11