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TPS2393 Datasheet

  • TPS2393

  • 全功能 -48V 熱插拔電源管理器，工業(yè)溫度

  • 296.00KB

  • 32頁

  • TI

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TPS2392
TPS2393
www.ti.com
SLUS536C 鈭?AUGUST 2002 鈭?REVISED AUGUST 2004
FULL FEATURED -48 V
HOT SWAP POWER MANAGER
FEATURES
D
D
D
D
D
D
D
D
D
D
D
D
Wide Input Supply Range: 鈭?0 V to 鈭?0 V
Transient Rating to 鈭?00 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
DESCRIPTION
The TPS2392 and TPS2393 integrated circuits are hot
swap power managers optimized for use in nominal
鈭?8-V systems. They operate with supply voltage
ranges from 鈭?0-V to 鈭?0-V, and are rated to withstand
spikes to 鈭?00 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.
DC/DC
CONVERTER
R2
4.99 k鈩?/div>
1%
VIN+
C4
100
碌F
100 V
VOUT+
VDD
VOUT+
APPLICATIONS
D
鈭?8-V Distributed Power Systems
D
Central Office Switching
D
Wireless Base Station
R1
200 k鈩?/div>
1%
GND
R6
10 k鈩?/div>
R3
3.92 k鈩?/div>
1%
1
R5
100
k鈩?/div>
2
3
D2
5.6 V
C3
1500 pF
鈭?8V
C2
0.1
碌F
4
5
6
7
C1
3900 pF
TPS2392/TPS2393
UVLO
OVLO 14
D1
BAS19
EN
COUT
VIN鈭?/div>
VOUT鈭?/div>
VOUT鈭?/div>
INSA DRAINSNS 13
INSB
FAULT
EN
FLTTIME
IRAMP
PG 12
RTN 11
GATE 10
ISENS
9
VUV
鈭扸IN 8
R4
20 m鈩?/div>
1/4, 1%
VOV
= 72.6 V
= 30.8 V
Q1
IRF530
VUV
= 32.8 V
UDG鈭?2098
.
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
錚?/div>
2004, 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.

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