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TPS2321D Datasheet

  • TPS2321D

  • DUAL HOT SWAP POWER CONTROLLER WITH INDEPENDENT CIRCUIT BREA...

  • 22頁(yè)

  • TI

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TPS2320, TPS2321
DUAL HOT SWAP POWER CONTROLLER
WITH INDEPENDENT CIRCUIT BREAKER
SLVS276A 鈥?MARCH 200 鈥?REVISED APRIL 2000
features
D
D
D
D
D
D
D
D
D
D
D
D
D OR PW PACKAGE
(TOP VIEW)
Dual-Channel High-Side MOSFET Drivers
1
16
DISCH1
GATE1
IN1: 3 V to 13 V; IN2: 3 V to 5.5 V
2
15
DISCH2
GATE2
Inrush Current Limiting With dv/dt Control
3
14
ENABLE
DGND
Independent Circuit-Breaker Control With
4
13
TIMER
FAULT
Programmable Current Limit and Transient
5
12
VREG
ISET1
Timer
6
11
AGND
ISET2
7
10
ISENSE2
IN2
CMOS- and TTL-Compatible Enable Input
8
9
ISENSE1
IN1
Low, 5-碌A(chǔ) Standby Supply Current . . . Max
Available in 16-Pin SOIC and TSSOP
NOTE: Terminal 14 is active high on TPS2321.
Package
鈥?40擄C to 85擄C Ambient Temperature Range
typical application
Electrostatic Discharge Protection
V
O1
+
V1
3 V 鈥?13 V
IN1
VREG
ISET1
ISENSE1 GATE1
DISCH1
applications
Hot-Swap/Plug/Dock Power Management
Hot-Plug PCI, Device Bay
Electronic Circuit Breaker
AGND
description
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.
TPS2320
FAULT
TIMER
IN2
ISET2
ISENSE2
GATE2
DISCH2
DGND
ENABLE
V
O2
V2
3 V 鈥?5.5 V
+
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
HOT SWAP CONTROLLER DESCRIPTION
Dual-channel with independent OCP and adjustable PG
Dual-channel with interdependent OCP and adjustable PG
鈥?40擄C to 85擄C
Dual-channel with independent OCP
Single-channel with OCP and adjustable PG
PIN
COUNT
20
20
16
14
PACKAGES
ENABLE
TPS2300IPW
TPS2310IPW
TPS2320ID
TPS2320IPW
TPS2330ID
TPS2330IPW
ENABLE
TPS2301IPW
TPS2311IPW
TPS2321ID
TPS2321IPW
TPS2331ID
TPS2331IPW
鈥?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
漏
2000, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

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