Hi,
In my design, TPS56c215 has VIN supply of 15V DC input. For purpose of sequencing, I would like to keep this device turned OFF until 5V supply is generated up to 4.5V.
Hence, can the Enable input pin of TPS56C215 device be connected to a voltage divider between 5V & GND such that the TPS56C215 device gets enabled after voltage at Enable pin crosses 1.225V (Ven Rising Threshold)?
The dividers are set such that when 4.5V is reached the Ven is around 1.3V. Please confirm if this scheme can be used?
Note: The reason behind asking this question is that Figure 28. Adjustable VIN Undervoltage Lock Out shows EN pin connected across resistor divider from VIN and GND and does not say otherwise.
Regards,
Shareef
