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DATA SHEET
TPS92391 Boost/SEPIC High Dimming Performance LED Driver with Six 200-mA Channels
1 Features
- Input voltage operating range 3 V to 48 V
- Six high-precision current sinks
- Up to 200-mA DC current for each
current sink
- Current matching 1%
(typical)
- Dimming ratio 32 000:1
using 152-Hz LED output PWM frequency
- Up to 16-bit LED dimming
resolution with I2C, or PWM input
- 8 Configurable LED strings configuration
- Auto-phase shift PWM dimming
- 12-bit Analog dimming
- Switching frequency 100 kHz to 2.2
MHz
- Boost spread spectrum for reduced EMI
- Boost sync input to set boost switching frequency
from an external clock
- Up to 48-V VOUT boost or SEPIC DC/DC
controller
- Switching frequency 100
kHz to 2.2 MHz
- Boost spread spectrum for
reduced EMI
- Boost sync input to set boost switching frequency from
an external clock
- Extensive fault diagnostics
2 Applications
Backlight for:
- Monitor
- TV
- Medical displays
- Industrial backlighting systems in control
panels
- Industrial PC
- Test and measurement equipment
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