TPS2320 Datasheet, PDF (1/22 Pages) Texas Instruments – DUAL HOT SWAP POWER CONTROLLER WITH INDEPENDENT CIRCUIT BREAKER

TPS2320, TPS2321
DUAL HOT SWAP POWER CONTROLLER
WITH INDEPENDENT CIRCUIT BREAKER
SLVS276A – MARCH 200 – REVISED APRIL 2000
features
D Dual-Channel High-Side MOSFET Drivers
D IN1: 3 V to 13 V; IN2: 3 V to 5.5 V
D Inrush Current Limiting With dv/dt Control
D Independent Circuit-Breaker Control With
Programmable Current Limit and Transient
Timer
D CMOS- and TTL-Compatible Enable Input
D Low, 5-µA Standby Supply Current . . . Max
D Available in 16-Pin SOIC and TSSOP
Package
D – 40°C to 85°C Ambient Temperature Range
D Electrostatic Discharge Protection
D OR PW PACKAGE
(TOP VIEW)
GATE1
1
GATE2
2
DGND
3
TIMER
4
VREG
5
AGND
6
ISENSE2
7
ISENSE1
8
16
DISCH1
15
DISCH2
14
ENABLE
13
FAULT
12
ISET1
11
ISET2
10
IN2
9
IN1
NOTE: Terminal 14 is active high on TPS2321.
typical application
applications
D Hot-Swap/Plug/Dock Power Management
D Hot-Plug PCI, Device Bay
D Electronic Circuit Breaker
description
V1
3 V – 13 V
IN1
VREG
ISET1 ISENSE1 GATE1
DISCH1
V_O1
+
AGND
DGND
TPS2320
FAULT
The TPS2320 and TPS2321 are dual-channel
hot-swap controllers that use external N-channel
MOSFETs as high-side switches in power
applications. Features of these devices, such as
overcurrent protection (OCP), inrush-current
control, and separation of load transients from
actual load increases, are critical requirements for
hot-swap applications.
ENABLE
IN2
ISET2 ISENSE2 GATE2
DISCH2
TIMER
V2
3 V – 5.5 V
V_O2
+
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.
AVAILABLE OPTIONS
TA
HOT-SWAP CONTROLLER DESCRIPTION
PIN
COUNT
PACKAGES
ENABLE
ENABLE
Dual-channel with independent OCP and adjustable PG
20
TPS2300IPW
TPS2301IPW
Dual-channel with interdependent OCP and adjustable PG
20
TPS2310IPW
TPS2311IPW
– 40°C to 85°C _{Dual-channel with independent OCP}
TPS2320ID
TPS2321ID
16
TPS2320IPW
TPS2321IPW
Single-channel with OCP and adjustable PG
TPS2330ID
TPS2331ID
14
TPS2330IPW
TPS2331IPW
† _{The packages are available left-end taped and reeled (indicated by the R suffix on the device type; e.g., TPS2321IPWR).}
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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2000, Texas Instruments Incorporated
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