JAJSHK0B NOVEMBER 2008 – June 2019 TPS40197
PRODUCTION DATA.
If the junction temperature of the device reaches the thermal shutdown limit of 140°C, the PWM and the oscillator are turned off and HDRV and LDRV are driven low, turning off both FETs. When the junction cools to the required level (120°C nominal), the PWM initiates soft-start as during a normal power-up cycle.