DUAL HOT SWAP POWER CONTROLLERS
WITH INDEPENDENT CIRCUIT BREAKER
Dual-Channel High-Side MOSFET Drivers
IN1: 3 V to 13 V; IN2: 3 V to 5.5 V
Output dV/dt Control Limits Inrush Current
Independent Circuit-Breaker With
Programmable Overcurrent Threshold and
CMOS- and TTL-Compatible Enable Input
Low, 5- A Standby Supply Current (Max)
Available in 16-Pin SOIC and TSSOP Package
–40 C to 85 C Ambient Temperature Range
Electrostatic Discharge Protection
Hot-Swap/Plug/Dock Power Management
Hot-Plug PCI, Device Bay
Electronic Circuit Breaker
The TPS2320 and TPS2321 are dual-channel
hot-swap controllers that use external N-channel
applications. Features of these devices, such as
overcurrent protection (OCP), inrush-current control,
and the ability to
discriminate between load
transients and faults, are critical requirements for
The TPS2320/21 devices incorporate undervoltage lockout (UVLO) to ensure the device is off at startup. Each
internal charge pump, capable of driving multiple MOSFETs, provides enough gate-drive voltage to fully
enhance the N-channel MOSFETs. The charge pumps control both the rise times and fall times (dv/dt) of the
MOSFETs, reducing power transients during power up/down. The circuit-breaker functionality combines the
ability to sense overcurrent conditions with a timer function; this allows designs such as DSPs, that may have
high peak currents during power-state transitions, to disregard transients for a programmable period.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
SLVS276E – MARCH 2000 – REVISED NOVEMBER 2006
NOTE: Terminal 14 is active-high on TPS2321.
3 V–13 V
3 V–5.5 V
Copyright © 2000–2006, Texas Instruments Incorporated
D OR PW PACKAGE