桂花蒸

E522.49-Automotive grade 16-channel LED constant current driver chip

Overview

E522.49, the microcontroller can control the current, duty cycle, switch and status reading of 16 LED output channels through the bus interface

Power supply voltage: 5V~40V
Built-in 16-channel PWM generator, 10-bit resolution
16-channel programmable LED driver, maximum current per channel 100mA, output current step 100uA, adjustable rising slope
2 priority PWMIN input interfaces, which can directly control the LED channel through the PWM signal on the PWMIN pin or the backup data in OTP
10-bit ADC for LED open circuit, short circuit and system diagnostics
Support "single light" mode
Unique thermal management function: two-channel parallel output, reducing chip power consumption through external heat dissipation resistor
Configurable overvoltage derating output
Configurable over-temperature derating output
LED bin brightness correction
Optional external LED bin resistor evaluation
In the Failsafe state (for example, when the host (MCU) fails), the chip can continue to work based on the internally stored current and duty cycle data.
Operating temperature -40°C - 125°C (junction temperature 150°C)
AEC-Q100 automotive grade certification
Meets ASIL-B functional safety level
Package: QFN32L6

Design Files

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Update:2025-06-23 15:56:17

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