Datasheet

D−16
D−8
DBV−5
DRB−8
DGN−8
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
IN2
EN3
NC
OC3
OUT3
NC
NC
1
2
3
4
8
7
6
5
GND
IN
IN
EN
OUT
OUT
OUT
OC
TPS2041B/TPS2051B
D ANDDGNPACKAGES
(TOP VIEW)
1
2
3
4
8
7
6
5
GND
GND
IN
IN
EN1
EN1
EN2
EN2
OC1
OC1
OUT1
OUT1
OUT2
OUT2
OC2
OC2
TPS2042B/TPS2052B
DRBPACKAGES
(TOP VIEW)
OC1
OUT1
OUT2
OC2
GND
IN1
EN1
EN2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
IN2
EN3
EN4
OC3
OUT3
OUT4
OC4
OC1
OUT1
OUT2
OC2
GND
IN1
EN1
EN2
− NoconnectNC
Allenableinputsareactivehighforthe TPS205xBseries.
TPS2044B/TPS2054B
D PACKAGE
(TOP VIEW)
TPS2043B/TPS2053B
DPACKAGE
(TOP VIEW)
GND
OUT
TPS2041B/TPS2051B
DBVPACKAGE
(TOP VIEW)
OC
IN
EN
4
3
2
1
5
6
7
8
TPS2042B/TPS2052B
D ANDDGNPACKAGES
(TOP VIEW)
TPS2014600mA
TPS20151 A
TPS2041B500mA
TPS2051B500mA
TPS2045A 250mA
TPS2049100mA
TPS2055A 250mA
TPS20611 A
TPS20651 A
TPS20681.5 A
TPS20691.5 A
TPS2042B500mA
TPS2052B500mA
TPS2046B250mA
TPS2056250mA
TPS20621 A
TPS20661 A
TPS20601.5 A
TPS20641.5 A
TPS2080500mA
TPS2081500mA
TPS2082500mA
TPS2090250mA
TPS2091250mA
TPS2092250mA
TPS2043B500mA
TPS2053B500mA
TPS2047B250mA
TPS2057A 250mA
TPS20631 A
TPS20671 A
TPS2044B500mA
TPS2054B500mA
TPS2048A 250mA
TPS2058250mA
TPS2085500mA
TPS2086500mA
TPS2087500mA
TPS2095250mA
TPS2096250mA
TPS2097250mA
TPS201xA 0.2 A to2 A
TPS202x0.2 A to2 A
TPS203x0.2 A to2 A
GENERAL SWITCHCATALOG
33m ,SingleW 80m ,SingleW
80m ,DualW 80m ,DualW
80m , TripleW
80m ,QuadW 80m ,QuadW
TPS2041B, TPS2042B
TPS2043B, TPS2044B, TPS2051B
TPS2052B, TPS2053B, TPS2054B
www.ti.com
SLVS514L JUNE 2010 REVISED JUNE 2011
CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
Check for Samples: TPS2041B, TPS2042B, TPS2043B, TPS2044B, TPS2051B, TPS2052B, TPS2053B, TPS2054B
1
FEATURES
APPLICATIONS
2
70-m High-Side MOSFET
Heavy Capacitive Loads
500-mA Continuous Current Short-Circuit Protections
Thermal and Short-Circuit Protection
Accurate Current Limit
(0.75 A min, 1.25 A max)
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
Undervoltage Lockout
Deglitched Fault Report (OC)
No OC Glitch During Power Up
Maximum Standby Supply Current:
1-μA (Single, Dual) or 2-μA (Triple, Quad)
Ambient Temperature Range: -40°C to 85°C
UL Recognized, File Number E169910
Additional UL Recognition for TPS2042B and
TPS2052B for Ganged Configuration
DESCRIPTION
The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive
loads and short circuits are likely to be encountered. These devices incorporates 70-m N-channel MOSFET
power switches for power-distribution systems that require multiple power switches in a single package. Each
switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to
control the power-switch rise times and fall times to minimize current surges during switching. The charge pump
requires no external components and allows operation from supplies as low as 2.7 V.
When the output load exceeds the current-limit threshold or a short is present, the device limits the output current
to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When
continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction
temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal
shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains
off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A
typically.
See TI Switch Portfolio at http://www.ti.com/usbpower
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.
UNLESS OTHERWISE NOTED this document contains
Copyright © 20102011, Texas Instruments Incorporated
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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