TPS2394 Datasheet, PDF (1/18 Pages) Texas Instruments – –48-V Hot Swap Power Manager

TPS2394
www.ti.com
–48-V Hot Swap Power Manager
Check for Samples: TPS2394
SLVSAA9 – AUGUST 2010
FEATURES
1
• Operating Supply Range of –12 V to –80 V
• Withstands Transients to –100 V
• Programmable Current Limit
• Programmable Linear Inrush Slew Rate
• Programmable UV/OV Thresholds
• Programmable UV and OV Hysteresis
• Fault Timer to Eliminate Nuisance Trips
• Power Good and Fault Outputs
• 14-Pin TSSOP Package
APPLICATIONS
• –48-V Distributed Power Systems
• Central Office Switching
• ATCA Systems
• Base Stations
DESCRIPTION
The TPS2394 is a hot swap power manager which
can provide inrush limit, over current protection, short
circuit protection. The TPS2394 operates with supply
voltages from −12 V to −80 V, and withstands input
transient to −100 V.
The TPS2394 uses a power FET to provide load
current slew rate control and peak current limiting that
is programmed by one resistor and one capacitor.
The device also provides a power good output to
enable down-stream power converters and a fault
output to indicate load problems.
TYPICAL APPLICATION DIAGRAM
RTN
R1
(1)
D1
1
Power Good
Fault
R2
R3
3 UV
12 PG
2 FLT
RTN
TPS2394
GAT 11
SENSE 10
SOURCE ⁷
4 OV
FLTTIM RAMP NC
5
6
14
C_FLT
C_RAMP
NC 9
NC 8
NC
13
-Vin
(1) D1 optional per application requirements.
R_LOAD
C_LOAD
Q1
R_SENSE
1
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated