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TPS2490DGSG4 Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS2490DGSG4
Descripción Electrónicos  POSITIVE HIGH-VOLTAGE POWER-LIMITING HOTSWAP CONTROLLER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS2490DGSG4 Datasheet(HTML) 1 Page - Texas Instruments

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3,0 mm X 4,88 mm
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6
EN
VREF
PROG
TIMER
GND
VCC
SENSE
GATE
OUT
PG
DGS Package
(Top View)
7
VCC
SENSE
GATE
OUT
EN
VREF
PG
PROG
TIMER
GND
6
8
9
10
1
2
3
4
5
D1
SMAJ60A
C1
0.1
µF
RS
0.01
M1
IRF540NS
R6
470 k
R5
10
R3
41.2 k
R4
8.25 k
CT
0.1
µF
CO
220
µF
R1
324 k
R2
13.3 k
VI = 48 Vdc
VO at 4 A
Power Good
TPS2490/91
ILIM = 5 A,
VON/VOFF = 34.2 V/31.7 V,
PLIM = 34 W,
Timeout = 16 mS
Programmed
SOA, 16mS
TPS2490
TPS2491
SLVS503 – NOVEMBER 2003
POSITIVE HIGH-VOLTAGE POWER-LIMITING HOTSWAP CONTROLLER
FEATURES
APPLICATIONS
Server Backplanes
Programmable Power Limiting and Current
Limiting for Complete SOA Protection
Storage Area Networks (SAN)
Medical Systems
Wide Operating Range: +9 V to +80 V
Plug-in Modules
Latched Operation (TPS2490) and Automatic
Base Stations
Retry (TPS2491)
High-side Drive for Low-RDS(on) External
N-channel MOSFET
Programmable Fault Timer to Protect the
MOSFET and Eliminate Nuisance Shutdowns
Power Good Open-Drain Output for Down-
stream DC/DC Coordination
Enable can be used as a Programmable
Undervoltage Lockout or Logic Control
Small, Space-saving 10-pin MSOP Package
DESCRIPTION
The TPS2490 and TPS2491 are easy-to-use, positive high voltage, 10-pin Hot Swap Power Manager™ devices
that safely drive an external N-channel MOSFET switch. The power limit and current limit (both are adjustable
and independent of each other) ensure that the external MOSFET operates inside a selected safe operating area
(SOA) under the harshest operating conditions. Applications include inrush current limiting, electronic circuit
breaker protection, controlled load turn-on, interfacing to down-stream dc-to-dc converters, and power feed
protection. These devices are available in a small, space-saving 10-pin MSOP package and significantly reduce
the number of external devices, saving precious board space. The TPS2490/91 is supported by application
notes, an evaluation module, and a design tool.
Typical Application and Corresponding SOA
Hot Swap Power Manager is a trademark of Texas Instruments.
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.
Copyright © 2002–2003, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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