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TPS2553DBV-1 Datasheet(PDF) 1 Page - Texas Instruments

No. de pieza TPS2553DBV-1
Descripción Electrónicos  PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS2553DBV-1 Datasheet(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
1
2
3
4
5
6
OUT
FAULT
ILIM
EN
GND
IN
PAD
1
2
3
4
5
6
OUT
FAULT
ILIM
EN
GND
IN
TIPS2552/TPS2553
DBVPACKAGE
(TOP VIEW)
EN = ActiveLowfortheTPS2552
EN= ActiveHighfortheTPS2553
Add-1topartnumberforlach-offversion
OUT
IN
GND
FAULT
ILIM
EN
R
ILIM
20kW
R
FAULT
100kW
ControlSignal
5VUSB
Input
USB
Port
USBData
TPS2552/53
0.1 F
m
120 F
m
Fault Signal
PowerPad
USBrequirementonly*
*
facingportsarebypassedwithatleast
120 Fperhub
m
USBrequirementthatdownstream
TIPS2552/TPS2553
DRVPACKAGE
(TOP VIEW)
TPS2552
TPS2553, TPS2552-1, TPS2553-1
www.ti.com........................................................................................................................................ SLVS841A – NOVEMBER 2008 – REVISED DECEMBER 2008
PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
2
• ±6% Current-Limit Accuracy at 1.3 A
• Meets USB Current-Limiting Requirements
The
TPS2552/53
and
TPS2552-1/53-1
power-distribution
switches
are
intended
for
• Backwards Compatible with TPS2550/51
applications
where
precision
current
limiting
is
• Adjustable Current Limit, 75 mA–1300 mA (typ)
required or heavy capacitive loads and short circuits
• Constant-Current (TPS2552/53) and Latch-off
are
encountered.
These
devices
offer
a
(TPS2552-1/53-1) Versions
programmable current-limit threshold between 75 mA
and 1.3 A (typ) via an external resistor. Current-limit
• Fast Overcurrent Response - 2-µS (typ)
accuracy as tight as +/-6% can be achieved at the
• 85-mΩ High-Side MOSFET (DBV Package)
higher current-limit settings. The power-switch rise
• Reverse Input-Output Voltage Protection
and fall times are controlled to minimize current
surges during turn on/off.
• Operating Range: 2.5 V to 6.5 V
• 1-µA Maximum Standby Supply Current
TPS2552/53 devices limit the output current to a safe
level by switching into a constant-current mode when
• Built-in Soft-Start
the output load exceeds the current-limit threshold.
• 15 kV ESD Protection per IEC 61000-4-2 (with
TPS2552-1/53-1
devices
provide
circuit
breaker
External Capacitance)
functionality by latching off the power switch during
overcurrent or reverse-voltage situations. An internal
reverse-voltage detection comparator disables the
power-switch in the event that the output voltage is
• USB Ports/Hubs
driven higher than the input to protect devices on the
• Digital TV
input side of the switch. The FAULT logic output
• Set-Top Boxes
asserts low during overcurrent and reverse-voltage
• Mobile Phones
conditions.
• VOIP Phones
Figure 1. Typical Application as USB Power Switch
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.
2
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008, 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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