PAM2322AGEAR

Document Number: DS36234 Rev. 2 - 2

8 of 13

www.diodes.com

September 2014

© Diodes Incorporated

PAM2322AGEAR

A Product Line of

Diodes Incorporated

Hiccup Mode Short Circuit Control

When the converter output1 or output2 is shorted, or the device is overloaded during high-side MOSFET current-limit triggering, it will turn off the

high-side MOSFET and turn on the low-side MOSFET. An internal counter is used to count the number of the current-limit triggering. The counter

is reset when consecutive high-side MOSFET turn on without reaching current limit. If the current-limit condition persists, the counter fills up. The

control logic then stops both high side and low side MOSFETs and waits for a hiccup period, before attempting a new soft-start sequence. The

The hiccup mode is disabled during soft-start time.

Over Temperature Protection

The internal thermal temperature protection circuitry is provided to protect the integrated circuit in the event that the maximum junction

temperature is exceeded. When the junction temperature exceeds +150

The PAM2322AGEAR will restart automatically under the control of soft-start circuit when the junction temperature decreases to +120

Power Good Flag

PG1 pin is power good indicator. The output of this pin is an open drain with internal pull up resistor to VIN. PG is pulled up to VIN when the

output1 voltage (1.8V) is within 10% of the regulation level, otherwise it is low.