LED Drivers
High Power LED Driver with Pre-Emptive Boost for Ultra-High Dimming Ratio and Low Output Ripple
A80601-4
Product Details
Product Details
Top Features
- Automotive AEC-Q100 qualified
- Enhanced fault handling for ASIL B system compliance
- Wide input voltage range of 4.5 to 40 V for start/stop,cold crank, and load dump requirements
- Operate in Boost or SEPIC mode for flexible output
- Gate driver for external NMOS to deliver higher output power
- Four integrated LED current sinks, up to 210 mA each
- Boost switching frequency synced externally or programmed from 200 kHz to 2.3 MHz
- Programmable boost frequency dithering to reduce EMI
- Advanced control allows minimum PWM on-time down to 0.3 μs, and avoids MLCC audible noises
- LED contrast ratio: 15,000:1 at 200 Hz using PWM dimming alone, 150,000:1 when combining PWM and analog dimming
- Excellent input voltage transient response even at lowest PWM duty cycle
- Gate driver for optional PMOS input disconnect switch
- Extensive fault protection features
Typical Applications
