LM3492HC Description
The LM3492HC/-Q1 device integrates a boost converter and a two-channel current regulator to implement a highly efficient and cost effective LED driver. This device drives two individually dimmable LED strings with a maximum power of 15 W and an output voltage of up to 65 V. The boost converter employs a proprietary projected-on-time control method to give a fast transient response with no pensation required.
LM3492HC Key Features
- 1 Boost Converter
- Automotive Grade Product, Q100 Grade-1 Qualified
- Very Wide Input Voltage Range: 4.5 V to 65 V
- Programmable Soft-Start Period
- No Loop pensation Required
- Stable with Ceramic and Other Low ESR Capacitors with No Audible Noise
- Nearly Constant Switching Frequency Programmable from 200 kHz to 1 MHz
- Current Regulator
- Programmable LED Current: 50 mA to 250 mA
- 10000:1 Contrast Ratio, 300-ns Minimum Pulse Width
LM3492HC Applications
- Ultra-High Contrast Ratio 6.5” to 10” LCD Display Backlight up to 28 LEDs