AEC-Q100 LED driver delivers dynamic effects
Diodes’ AL5958Q matrix LED driver integrates a 48-channel constant-current source and 16 N-channel MOSFET switches for automotive dynamic lighting. Two cascade-connected drivers support up to 32 scans, well-suited for narrow-pixel mini- and micro-LED displays that use multiple RGB LEDs to deliver animated lighting effects and information.
The AEC-Q100 qualified driver employs multiplex pulse density modulation (M-PDM) control to raise the refresh rate of dynamic scanning systems without increasing the grayscale clock frequency or introducing EMI. Built-in matrix display command functions reduce processing overhead on the local MCU. These functions include automatic black-frame insertion, ghost elimination, and suppression of shorted-pixel caterpillars.
Operating from a 3-V to 5-V input, the AL5958Q’s 48 constant-current outputs supply up to 20 mA per LED channel string. Current accuracy between channels and matching across devices is typically ±1.5%.
The AL5958Q LED driver costs $1.60 each in lots of 2500 units.
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