Datasheet

LMD18245
SNVS110E –APRIL 1998–REVISED APRIL 2013 www.ti.com
THERMAL SHUTDOWN
Internal circuitry senses the junction temperature near the power bridge and disables the bridge if the junction
temperature exceeds about 155°C. When the junction temperature cools past the shutdown threshold (lowered
by a slight hysteresis), the device automatically restarts.
UNDERVOLTAGE LOCKOUT
Internal circuitry disables the power bridge if the power supply voltage drops below a rough threshold between
8V and 5V. Should the power supply voltage then exceed the threshold, the device automatically restarts.
Trace: Fault Current at 5A/div
Horizontal: 20 μs/div
Figure 13. Fault Current with V
CC
= 30V, OUT 1 Shorted to OUT 2, and CS OUT Grounded
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