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TPS2550 Datasheet Preview

TPS2550 Datasheet

ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

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TPS2550
TPS2551
www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008
ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
FEATURES
1
2 Adjustable Current-Limit, 100 mA–1100 mA
Fast Overcurrent Response - 2 µS Typical
85-mHigh-Side MOSFET (DBV Package)
Reverse Input-Output Voltage Protection
Operating Range: 2.5 V to 6.5 V
Deglitched Fault Report
1-µA Maximum Standby Supply Current
Junction Temperature Range: –40°C to 125°C
Built-in Soft-Start
15 kV ESD Protection (with external
capacitance)
UL Listed – File No. E169910
Current-Limit Resistor Calculator – SLVC163
APPLICATIONS
USB Ports/Hubs
Cell phones
Laptops
Heavy Capacitive Loads
Reverse-Voltage Protection
TPS2550/TPS2551
DRV PACKAGE
(TOP VIEW)
OUT 1 6 IN
ILIM 2 5 GND
FAULT 3 4 EN
TPS2550/TPS2551
DBV PACKAGE
(TOP VIEW)
IN
1
6
OUT
GND 2
5
ILIM
EN
3
4
FAULT
EN = Active Low for the TPS2550
EN = Active High for the TPS2551
DESCRIPTION
The TPS2550/51 power-distribution switch is
intended for applications where heavy capacitive
loads and short-circuits are likely to be encountered,
incorporating a 100-m, N-channel MOSFET in a
single package. The current-limit threshold is user
adjustable between 100 mA and 1.1 A via an external
resistor. The power-switch rise and fall times are
controlled to minimize current surges during
switching.
The device limits the output current to a desired level
by switching into a constant-current mode when the
output load exceeds the current-limit threshold or a
short is present. An internal reverse-voltage detection
comparator disables the power-switch in the event
that the output voltage is driven higher than the input
to protect devices on the input side of the switch. The
FAULT logic output asserts low during both
overcurrent and reverse-voltage conditions.
5 V USB
INPUT
RFAULT
100 kW
0.1 mF
TPS2550/51
IN
OUT
USB Data
120 mF *
USB
Port
FAULT Signal
Control Signal
FAULT
ILIM
EN
GND
PowerPAD
RILIM
15 kW
* USB Requirement that downstream-facing ports
are bypassed with at least 120 mF per hub
Figure 1. Typical Application as USB Power
Switch
33 mW, Single
80 mW, Single
GENERAL SWITCH CATALOG
80 mW, Dual
80 mW, Dual
80 mW, Triple
80 mW, Quad
80 mW, Quad
TPS201xA 0.2 A to 2 A
TPS202x 0.2 A to 2 A
TPS203x 0.2 A to 2 A
TPS2014
TPS2015
TPS2041B
TPS2051B
TPS2045A
TPS2049
TPS2055A
TPS2061
TPS2065
TPS2068
TPS2069
600 mA
1A
500 mA
500 mA
250 mA
100 mA
250 mA
1A
1A
1.5 A
1.5 A
TPS2042B
TPS2052B
TPS2046B
TPS2056
TPS2062
TPS2066
TPS2060
TPS2064
500 mA
500 mA
250 mA
250 mA
1A
1A
1.5 A
1.5 A
TPS2080
TPS2081
TPS2082
TPS2090
TPS2091
TPS2092
500 mA
500 mA
500 mA
250 mA
250 mA
250 mA
TPS2043B
TPS2053B
TPS2047B
TPS2057A
TPS2063
TPS2067
500 mA
500 mA
250 mA
250 mA
1A
1A
TPS2044B
TPS2054B
TPS2048A
TPS2058
500 mA
500 mA
250 mA
250 mA
TPS2085
TPS2086
TPS2087
TPS2095
TPS2096
TPS2097
500 mA
500 mA
500 mA
250 mA
250 mA
250 mA
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.
PowerPAD is a trademark of Texas Instruments.
2
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 © 2008, Texas Instruments Incorporated




etcTI

TPS2550 Datasheet Preview

TPS2550 Datasheet

ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

No Preview Available !

TPS2550
TPS2551
SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com
This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields.
These circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to
MIL-STD-883C, Method 3015; however, it is advised that precautions be taken to avoid application of any voltage higher than
maximum-rated voltages to these high-impedance circuits. During storage or handling the device leads should be shorted together
or the device should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriate logic
voltage level, preferably either VCC or ground. Specific guidelines for handling devices of this type are contained in the publication
Guidelines for Handling Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies available from Texas Instruments.
DEVICE
TPS2550
TPS2551
AVAILABLE OPTIONS AND ORDERING INFORMATION
AMBIENT
TEMPERATURE (1)
ENABLE
SON (2)
(DRV)
SOT23 (2)
(DBV)
RECOMMENDED MAXIMUM
CONTINUOUS LOAD CURRENT
–40°C to 85°C
Active low
Active high
TPS2550DRV
TPS2551DRV
TPS2550DBV
TPS2551DBV
1.1 A
1.1 A
(1) Maximum ambient temperature is a function of device junction temperature and system level considerations, such as power dissipation
and board layout. See dissipation rating table and recommended operating conditions for specific information related to these devices.
(2) Add an R suffix to the device type for tape and reel.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1) (2)
Voltage range on IN, OUT, EN or EN, ILIM, FAULT
Voltage range from IN to OUT
IOUT Continuous output current
Continuous total power dissipation
FAULT sink current
ILIM source current
HBM
ESD
CDM
TJ Maximum junction temperature
TSgt Storage temperature
Lead temperature 1,6 mm (1/16-inch) from case for 10 seconds
VALUE
–0.3 to 7
–7 to 7
Internally limited
See "Dissipation Rating
Table"
25
1
2
500
–40 to 150
–65 to 150
300
UNIT
V
V
mA
mA
kV
V
°C
°C
°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Voltages are referenced to GND unless otherwise noted.
DISSIPATION RATING TABLE
BOARD
PACKAGE THERMAL
RESISTANCE
θJA
THERMAL
RESISTANCE
θJC
Low-K (1)
High-K (2)
Low-K (1)
High-K (2)
DBV
DBV
DRV
DRV
350°C/W
160°C/W
140°C/W
75°C/W
55°C/W
55°C/W
20°C/W
20°C/W
TA 25°C
POWER
RATING
285 mW
625 mW
715 mW
1330 mW
DERATING
FACTOR
ABOVE
TA = 25°C
2.85 mW/°C
6.25 mW/°C
7.1 mW/°C
13.3 mW/°C
TA = 70°C
POWER
RATING
TA = 85°C
POWER
RATING
155 mW
340 mW
395 mW
730 mW
114 mW
250 mW
285 mW
530 mW
TA = 110°C
POWER
RATING
42 mW
93 mW
107 mW
200 mW
(1) The JEDEC low-K (1s) board used to derive this data was a 3in × 3in, two-layer board with 2-ounce copper traces on top of the board.
(2) The JEDEC high-K (2s2p) board used to derive this data was a 3in × 3in, multilayer board with 1-ounce internal power and ground
planes and 2-ounce copper traces on top and bottom of the board.
2
Submit Documentation Feedback
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS2550 TPS2551


Part Number TPS2550
Description ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
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