tps2400 Datasheet, PDF (1/15 Pages) Texas Instruments – OVERVOLTAGE PROTECTION CONTROLLER

TPS2400
SLUS599 − JUNE 2004
OVERVOLTAGE PROTECTION CONTROLLER
FEATURES
D Up to 100-V Overvoltage Protection
D 6.9-V Overvoltage Shutdown Threshold
D 3.0-V Undervoltage Shutdown Threshold
D Overvoltage Turn-Off Time Less than 1.0 µs
D External N-Channel MOSFET Driven by
Internal Charge Pump
D 1-mA Maximum Static Supply Current
D 5-Pin SOT−23 Package
D −40_C to 85_C Ambient Temperature Range
D 2.5-kV Human-Body-Model, 500-V CDM
Electrostatic Discharge Protection
APPLICATIONS
D Cellular Phones
D PDAs
D Portable PCs
D Media Players
D Digital Cameras
D GPS
FUNCTIONAL BLOCK DIAGRAM
VIN
5
DESCRIPTION
The TPS2400 overvoltage protection controller is
used with an external N-channel MOSFET to
isolate sensitive electronics from destructive
voltage spikes and surges. It is specifically
designed to prevent large voltage transients
associated with automotive environments (load
dump) from damaging sensitive circuitry. When
potentially damaging voltage levels are detected
by the TPS2400 the supply is disconnected from
the load before any damage can occur.
Internal circuitry includes a trimmed band-gap
reference, oscillator, zener diode, charge pump,
comparator, and control logic. The TPS2400 is
designed for use with an external N-channel
MOSFET which are readily available in a wide
variety of voltages.
GND 2
8V
1.15 V
High= Closed
Internal Rail
UVLO
+
Enable
OVLO
+
8V
Charge Pump
18 V
5 µA
4 GATE
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright  2004, Texas Instruments Incorporated
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