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TPS2552D Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS2552D
Descripción Electrónicos  Precision Adjustable Current-Limited Power-Distribution Switches
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS2552D Datasheet(HTML) 1 Page - Texas Instruments

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OUT
IN
GND
FAULT
ILIM
EN
R
ILIM
20 kW
R
FAULT
100 kW
Control Signal
5V USB
Input
USB
Port
USB Data
TPS2552D/53D
0.1 F
m
120 F
m
Fault Signal
Power Pad
USB requirement only*
*
facing ports are bypassed with at least
120 F per hub
USB requirement that downstream
m
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TPS2552D, TPS2553D
SLVSDL7 – SEPTEMBER 2016
TPS255xD Precision Adjustable Current-Limited Power-Distribution Switches
1
1 Features
1
Up to 1.5 A Maximum Load Current
±6% Current-Limit Accuracy at 1.7 A (Typ)
Meets USB Current-Limiting Requirements
Backwards Compatible with TPS2550/51
Adjustable Current Limit, 75 mA–1700 mA (Typ)
Constant-Current (TPS2552D and TPS2553D)
TPS2552D (Enable Low) and TPS2553D (Enable
High)
Fast Overcurrent Response - 2 μs (Typ)
85-m
Ω High-Side MOSFET (DBV Package)
Reverse Input-Output Voltage Protection
Operating Range: 2.7 V to 6.5 V
Built-in Soft-Start
15 kV ESD Protection per IEC 61000-4-2 (With
External Capacitance)
UL Listed – File No. E169910 and NEMKO
IEC60950-1-am1 ed2.0
See the TI Switch Portfolio
2 Applications
USB Ports/Hubs
Digital TV
Set-Top Boxes
VOIP Phones
3 Description
The TPS2552D and TPS2553D power-distribution
switches
are
intended
for
applications
where
precision
current
limiting
is
required
or
heavy
capacitive loads and short circuits are encountered
and provide up to 1.5 A of continuous load current.
These devices offer a programmable current-limit
threshold between 75 mA and 1.7 A (typ) via an
external resistor. Current-limit accuracy as tight as
±6% can be achieved at the higher current-limit
settings. The power-switch rise and fall times are
controlled to minimize current surges during turn
on/off.
The TPS2552D/3D devices limit the output current to
a safe level by using a constant-current mode when
the output load exceeds the current-limit threshold.
An internal reverse-voltage comparator disables the
power-switch when the output voltage is driven higher
than the input to protect devices on the input side of
the switch. The FAULT output asserts low during
overcurrent and reverse-voltage conditions.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS2552D
SOT-23 (6)
2.90 mm × 1.60 mm
TPS2553D
SOT-23 (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic


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