ZHCSDT1D june 2015 – may 2023 ISO5451
PRODUCTION DATA
Undervoltage Lockout (UVLO) ensures correct switching of IGBT. The IGBT is turned-off, if the supply VCC1 drops below VIT-(UVLO1), irrespective of IN+, IN– and RST input till VCC1 goes above VIT+(UVLO1).
In similar manner, the IGBT is turned-off, if the supply VCC2 drops below VIT-(UVLO2), irrespective of IN+, IN– and RST input till VCC2 goes above VIT+(UVLO2).
Ready (RDY) pin indicates status of input and output side Under Voltage Lock-Out (UVLO) internal protection feature. If either side of device have insufficient supply (VCC1 or VCC2), the RDY pin output goes low; otherwise, RDY pin also serves as an indication to the micro-controller that the device is ready for operation.