Click to expand full text
A80603 and A80603-1
LED Driver with Pre-Emptive Boost for Ultra-High Dimming Ratio and Low Output Ripple
FEATURES AND BENEFITS
• 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 • Fully integrated LED current sinks and boost converter
with internal power MOSFET • Operate in Boost or SEPIC mode for flexible output • Drives up to 11 series white LED in 4 parallel strings, at
up to 120 mA per string (VF = 3.3 V max). • Boost switching frequency synced externally or
programmed from 260 kHz to 2.3 MHz • Clock-Out feature for internal switching frequency • Adjustable boost frequency dithering to reduce EMI • Advanced control allows minimum PWM on-time down
to 0.
A80603 Datasheet
