ZHCSQ68A May 2022 – December 2022 TLIN1431-Q1
PRODUCTION DATA
This pin supports a high-side switch supporting up to a 100 mA load with 60 mA being typical with a 14 V VSUP. In SPI mode, the HSS can be programmed to support a 200 Hz or 400 Hz 10-bit PWM. PWM1 or PWM2 can be assigned to the HSS. The HSS can be configured to use one of two timers that allows it to work with the WAKE pin. This supports cyclic sensing for sleep mode thus reducing sleep mode current. In pin mode this pin is controlled by the HSSC pin.
The switch supports open load detection and over current detection. When an over current is detected, there is a filter time, tOCFLTR, to determine if over current is valid. If valid there is a shut off time, tOCOFF, time for the HSS to shut off. When the HSS shuts off due to an over current event the HSS has to be re-enabled. This is accomplished differently depending upon whether the device is in pin control or SPI control. If in SPI control it will also depend upon how the HSS is configured.
Pin Control: