參數(shù)資料
型號: TPS2393DBTRG4
廠商: Texas Instruments, Inc.
英文描述: FULL-FEATURED-48-V HOTSWAP POWER MANAGER
中文描述: 全功能- 48 - V熱切換電源管理器
文件頁數(shù): 1/34頁
文件大?。?/td> 567K
代理商: TPS2393DBTRG4
SLUS536C AUGUST 2002 REVISED AUGUST 2004
FEATURES
Wide Input Supply Range: 20 V to 80 V
Transient Rating to 100 V
Programmable Current Limit
Programmable Current Slew Rate
Programmable UV/OV Thresholds/Hysteresis
Debounced Insertion Detection Inputs
Open-Drain Power Good (PG) Output
Fault Timer to Eliminate Nuisance Trips
Open-Drain Fault Output (FAULT)
Enable Input (EN)
14-Pin TSSOP package
44-Pin TSSOP Package for
Creapage/Clearance
APPLICATIONS
48-V Distributed Power Systems
Central Office Switching
Wireless Base Station
DESCRIPTION
The TPS2392 and TPS2393 integrated circuits are hot
swap power managers optimized for use in nominal
48-V systems. They operate with supply voltage
ranges from 20-V to 80-V, and are rated to withstand
spikes to 100 V. In conjunction with an external
N-channel FET and sense resistor, they can be used to
enable live insertion of plug-in cards and modules in
powered systems. Each device provides load current
slew rate control and peak magnitude limiting.
Undervoltage and overvoltage shutdown thresholds
are easily programmed via a three-resistor divider
network. In addition, two active-low, debounced inputs
provide plug-in insertion detection. A power good (PG)
output enables downstream converters. The TPS2392
and TPS2393 also provide the basic hot swap functions
of electrical isolation of faulty cards, filtered protection
against nuisance overcurrent trips, and single-line fault
reporting. The 44-pin part supports designs where
telecomm creepage and clearance requirements must
be followed.
The TPS2392 latches off in response to current faults,
while the TPS2393 periodically retries the load in the
event of a fault.
UDG02098
D1
BAS19
C2
0.1
μ
F
R3
3.92 k
1%
R2
4.99 k
1%
R1
200 k
1%
R4
20 m
1/4, 1%
R6
10 k
R5
100
k
C4
100
μ
F
100 V
COUT
= 32.8 V
= 30.8 V
= 72.6 V
VUV
VUV
VOV
GATE
1
2
3
4
5
6
7
14
13
12
11
10
9
8
UVLO
INSA
INSB
FAULT
EN
FLTTIME
OVLO
DRAINSNS
ISENS
IRAMP
VIN
PG
RTN
TPS2392/TPS2393
VOUT+
VDD
VOUT
VIN+
VIN
DC/DC
CONVERTER
EN
C3
1500 pF
VOUT+
VOUT
GND
C1
3900 pF
48V
Q1
IRF530
D2
5.6 V
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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.
www.ti.com
Copyright
2004, Texas Instruments Incorporated
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TPS2393PWR 功能描述:熱插拔功率分布 Full Featured -48V Industral Temp. RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2393PWRG4 功能描述:熱插拔功率分布 Full Featured -48V Industral Temp. RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube