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SNVSA75D – NOVEMBER 2015 – REVISED MAY 2017 LP8862-Q1 Low-EMI Automotive LED Driver With Two 160-mA Channels
1 Features 3 Description The LP8862-Q1 is an automotive high-efficiency, lowEMI, easy-to-use LED driver with integrated DC-DC
converter. The DC-DC supports both boost and
SEPIC modes of operation. The device has two highprecision current sinks that can provide high dimming
ratio brightness control with a PWM input signal. 1 Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to
+125В°C Ambient Operating Temperature
Input Voltage Operating Range 4.5 V to 40 V
Two High-Precision Current Sinks
– Current Matching 1% (Typical)
– LED String Current up to 160 mA per Channel
– Dimming Ratio of 10 000:1 at 100 Hz
Integrated Boost/SEPIC Converter for LED String
Power
– Output Voltage up to 45 V
– Switching Frequency 300 kHz to 2.2 MHz …