SLVSER4B May 2020 – January 2022 TPS92200
PRODUCTION DATA
For a buck LED driver, the maximum duty cycle is limited by the minimum off time tMIN_OFF and switching frequency. To achieve the maximum brightness when the input voltage is close to output voltage, the TPS92200 device has a mechanism to decrease the switching frequency. This mechanism extends the on-time up to tMAX_ON, 6.6 µs (typical). With this function, the TPS92200 device maximum duty cycle is able to go up to DMAX, 99% (typical).