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TPS2321D

更新时间： 2024-11-13 22:50:39
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德州仪器 - TI 断路器功率控制控制器
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22页 409K
描述
DUAL HOT SWAP POWER CONTROLLER WITH INDEPENDENT CIRCUIT BREAKER

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TPS2321D 数据手册

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TPS2320, TPS2321  
DUAL HOT SWAP POWER CONTROLLER  
WITH INDEPENDENT CIRCUIT BREAKER  
SLVS276A – MARCH 200 – REVISED APRIL 2000  
D OR PW PACKAGE  
(TOP VIEW)  
features  
Dual-Channel High-Side MOSFET Drivers  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
GATE1  
GATE2  
DGND  
TIMER  
VREG  
AGND  
ISENSE2  
ISENSE1  
DISCH1  
DISCH2  
ENABLE  
FAULT  
ISET1  
ISET2  
IN2  
IN1: 3 V to 13 V; IN2: 3 V to 5.5 V  
Inrush Current Limiting With dv/dt Control  
Independent Circuit-Breaker Control With  
Programmable Current Limit and Transient  
Timer  
CMOS- and TTL-Compatible Enable Input  
IN1  
Low, 5-µA Standby Supply Current . . . Max  
Available in 16-Pin SOIC and TSSOP  
Package  
NOTE: Terminal 14 is active high on TPS2321.  
–40°C to 85°C Ambient Temperature Range  
typical application  
Electrostatic Discharge Protection  
V
O1  
+
applications  
V1  
3 V – 13 V  
Hot-Swap/Plug/Dock Power Management  
Hot-Plug PCI, Device Bay  
DISCH1  
IN1  
ISET1  
GATE1  
ISENSE1  
VREG  
Electronic Circuit Breaker  
AGND  
DGND  
TPS2320  
description  
FAULT  
TIMER  
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  
GATE2  
IN2  
ISET2  
ISENSE2  
DISCH2  
V
O2  
+
V2  
3 V – 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  
PACKAGES  
PIN  
COUNT  
T
A
HOT-SWAP CONTROLLER DESCRIPTION  
ENABLE  
ENABLE  
Dual-channel with independent OCP and adjustable PG  
Dual-channel with interdependent OCP and adjustable PG  
20  
20  
TPS2300IPW  
TPS2310IPW  
TPS2301IPW  
TPS2311IPW  
TPS2320ID  
TPS2320IPW  
TPS2321ID  
TPS2321IPW  
–40°C to 85°C  
Dual-channel with independent OCP  
16  
14  
TPS2330ID  
TPS2330IPW  
TPS2331ID  
TPS2331IPW  
Single-channel with OCP and adjustable PG  
†
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.  
Copyright 2000, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...22

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