LM342x-Q1 N -Channel Controllers for Constant-Current LED Drivers

1 Features

AEC Qualified for Automotive Applications
- Device Temperature Grade 1: −40°C ≤ T_A ≤ 125°C (LM3421-Q1 and LM3423-Q1)
- Device Temperature Grade 0: −40°C ≤ T_A ≤ 150°C (LM3421-Q0 and LM3423-Q0)
V_IN Range From 4.5 V to 75 V
High-Side Adjustable Current Sense
2-Ω, 1-A Peak MOSFET Gate Driver
Input Undervoltage and Output Overvoltage Protection
PWM and Analog Dimming
Cycle-by-Cycle Current Limit
Programmable Switching Frequency
Zero Current Shutdown and Thermal Shutdown
LED Output Status Flag (LM3423-Q1 and LM3423-Q0 Only)
Fault Status Flag and Timer(LM3423-Q1 and LM3423-Q0 Only)