The A8502 simplifies LCD backlighting and LED lighting designs, integrating a boost converter, two current sinks, and comprehensive protection features. Its wide input voltage range (5V-40V) ensures robust performance in automotive applications.
Product Details
Product Details
Top Features
- AEC-Q100 qualified
- Wide input voltage range of 5 to 40 V for start/stop, cold crank and load dump requirements
- Fully integrated LED current sinks and boost converter with 60 V DMOS
- Sync function to synchronize boost converter switching frequency up to 2.3 MHz, allowing operation above the AM band
- Excellent input voltage transient response
- Single resistor primary OVP minimizes VOUT leakage
- Internal secondary OVP for redundant protection
- LED current of 120 mA per channel
- Drives up to 12 series LEDs in 2 parallel strings
- 0.7% to 0.8% LED to LED matching accuracy
- PWM and analog dimming inputs
- 5000:1 PWM dimming at 200 Hz
- Provides driver for optional external PMOS input disconnect switch
- Extensive protection against:
- Shorted boost switch or inductor
- Shorted FSET or ISET resistor
- Shorted output
- Open or shorted LED pin
- Open boost Schottky
- Overtemperature (OTP)
