LED7707
Features
- Boost section
- 4.5 V to 36 V input voltage range
- Internal power MOSFET
- Internal +5 V LDO for device supply
- Up to 36 V output voltage
- Constant frequency peak current-mode control
- 250 k Hz to 1 MHz adjustable switching frequency
- External synchronization for multi-device application
- Pulse-skip power saving mode at light load
- Programmable soft-start
- Programmable OVP protection
- Stable with ceramic output capacitors
- Thermal shutdown Backlight driver section
- Six rows with 85 m A maximum current capability (adjustable)
- Rows disable option
- Less than 10 μs minimum dimming time
- ±2 % current matching between rows
- LED failure (open and short-circuit) detection
VFQFPN-24 4x4
Description
The LED7707 consists of a high efficiency monolithic boost converter and six controlled current generators (rows) specifically designed to supply LEDs arrays used in the backlighting of LCD panels. The device can manage an output voltage up to 36 V (i.e. 10 white LEDs per...
