Datasheet
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
TPS2552/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 Fm
120 Fm
Fault Signal
PowerPad
USBrequirementonly*
*
facingportsarebypassedwithatleast
120 Fperhub
USBrequirementthatdownstream
m
TPS2552/TPS2553
DRVPACKAGE
(TOP VIEW)
TPS2552, TPS2553
TPS2552-1, TPS2553-1
www.ti.com
SLVS841E –NOVEMBER 2008– REVISED FEBRUARY 2012
PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
Check for Samples: TPS2552, TPS2553, TPS2552-1, TPS2553-1
1
FEATURES
DESCRIPTION
The TPS2552/53 and TPS2552-1/53-1 power-
2
• Up to 1.5 A Maximum Load Current
distribution switches are intended for applications
• ±6% Current-Limit Accuracy at 1.7 A (typ)
where precision current limiting is required or heavy
• Meets USB Current-Limiting Requirements
capacitive loads and short circuits are encountered
and provide up to 1.5 A of continuous load current.
• Backwards Compatible with TPS2550/51
These devices offer a programmable current-limit
• Adjustable Current Limit, 75 mA–1300 mA (typ)
threshold between 75 mA and 1.7 A (typ) via an
• Constant-Current (TPS2552/53) and Latch-off
external resistor. Current-limit accuracy as tight as
(TPS2552-1/53-1) Versions
±6% can be achieved at the higher current-limit
settings. The power-switch rise and fall times are
• Fast Overcurrent Response - 2-μs (typ)
controlled to minimize current surges during turn
• 85-mΩ High-Side MOSFET (DBV Package)
on/off.
• Reverse Input-Output Voltage Protection
TPS2552/53 devices limit the output current to a safe
• Operating Range: 2.5 V to 6.5 V
level by using a constant-current mode when the
• Built-in Soft-Start
output load exceeds the current-limit threshold.
TPS2552-1/53-1 devices provide circuit breaker
• 15 kV ESD Protection per IEC 61000-4-2 (with
functionality by latching off the power switch during
External Capacitance)
overcurrent or reverse-voltage situations. An internal
• UL Listed – File No. E169910 and NEMKO
reverse- voltage comparator disables the power-
IEC60950-1-am1 ed2.0
switch when the output voltage is driven higher than
• See the TI Switch Portfolio the input to protect devices on the input side of the
switch. The FAULT output asserts low during
overcurrent and reverse-voltage conditions.
APPLICATIONS
• USB Ports/Hubs
• Digital TV
• Set-Top Boxes
• 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.
2PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008–2012, 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.