
Renesas Electronics
6-Channel LED Driver with Phase Shift Control
The ISL97676 is an LED driver that drives six channels of LED
current for TFT-Display. The ISL97676 drives six channels of LED to
support 78 LEDs from 4.5V to 26V or 48 LEDs from a boost supply
of 2.7V to 26V and a separate 5V bias supply on the ISL97676 VIN
pin.
FEATUREs
• 6 channels
• Channel phase shift PWM dimming
• Direct PWM dimming without phase shift
• 4.5V to 26V input
• 45V output max
• Up to 30mA LED current per channel
• Drive up to 78 (3.2V/20mA each) LEDs
• Current matching of ±1.5% from 1% ~ 100% dimming
• Dynamic headroom control
• Protections
- String open/short circuit, VOUT short circuit overvoltage, and over-temperature protections
- Optional master fault protection
• Selectable 600kHz or 1.2MHz switching frequency
• 20 Ld QFN 4mmx4mm package
APPLICATIONs
• Netbook displays LED backlighting
• Notebook displays LED backlighting