TS2026L

6-7

2005/11 rev. A

Function Description

Fault Flag

The FLG signal is an N-channel open-drain MOSFET output. FLG is asserted (active-low) when either an over current

or thermal shutdown condition occurs. In the case of and over current condition, FLG will be asserted only after the

and that erroneous error reporting is eliminated. For example, false over current condition can occur during hot plug

event when a highly capacitive load is connected and causes a high transient inrush current that exceeds the

Undervoltage Lockout

Undervoltage lockout (UVLO) prevents the output MOSFET from turning on until VIN exceeds approximately 2.5V.

Undervoltage detection function only when the switch is enabled.

Figure 1. TS2026L Fault Timing