JAJSJC6A December 2021 – June 2022 TPS92623-Q1
The TPS92623-Q1 is a three-channel, high-side linear LED driver supporting external thermal sharing resistor to achieve the controllable junction temperature rising. The device can be directly powered by automotive battery and output full load up to 450-mA current to LED with limited power dissipation on the device. The current output at each channel can be independently set by external R(SNSx) resistors. Current flows from the supply through the R(SNSx) resistor into the integrated current regulation circuit and to the LEDs through OUTx pin and RESx pin. TPS92623-Q1 device supports both supply control and PWM control to turn LED ON and OFF. The LED brightness is also adjustable by voltage duty cycle applied on either SUPPLY or PWMx pins with frequency above 100 Hz. The TPS92623-Q1 provides full diagnostics to keep the system operating reliably including LED open/short circuit detection, supply POR and thermal shutdown protection. TPS92623-Q1 device is in a HTSSOP package with total 16 leads. The TPS92623-Q1 can be used with other TPS9261x-Q1, TPS9262x-Q1, TPS9263x-Q1 and TPS92830-Q1 family devices together to achieve one-fails-all-fail protection by tying all FAULT pins together as a fault bus.