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CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
Check for Samples: TPS2041B, TPS2042B, TPS2043B, TPS2044B, TPS2051B, TPS2052B, TPS2053B,
FEATURES
1
•
70-mΩ High-Side MOSFET
2
•
500-mA Continuous Current
•
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-mA (Single, Dual) or 2-mA (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-mΩ 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.
33 m , Single
W
80 m , Single
W
TPS201xA
0.2 A to 2 A
TPS2014
600 mA
TPS202x
0.2 A to 2 A
TPS2015
1 A
TPS203x
0.2 A to 2 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
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
UNLESS
OTHERWISE
NOTED
this
document
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.
DGN−8
DRB−8
D−16
DBV−5
D−8
APPLICATIONS
•
Heavy Capacitive Loads
•
Short-Circuit Protections
TPS2041B/TPS2051B
DBV PACKAGE
(TOP VIEW)
OUT
GND
OC
TPS2042B/TPS2052B
DRB PACKAGES
(TOP VIEW)
GND
1
IN
2
†
EN1
3
†
EN2
4
†
All enable inputs are active high for the TPS205xB series.
NC
− No connect
GENERAL SWITCH CATALOG
80 m , Dual
W
80 m , Dual
W
80 m , Triple
TPS2042B
500 mA
TPS2080
500 mA
TPS2052B
500 mA
TPS2081
500 mA
TPS2043B
TPS2046B
250 mA
TPS2082
500 mA
TPS2053B
TPS2056
250 mA
TPS2090
250 mA
TPS2047B
TPS2062
1 A
TPS2091
250 mA
TPS2057A
TPS2066
1 A
TPS2092
250 mA
TPS2063
TPS2060
1.5 A
TPS2067
TPS2064
1.5 A
contains
TPS2041B, TPS2042B
TPS2043B, TPS2044B, TPS2051B
TPS2052B, TPS2053B, TPS2054B
SLVS514K – JUNE 2010 – REVISED DECEMBER 2008
TPS2054B
TPS2041B/TPS2051B
TPS2042B/TPS2052B
D AND DGN PACKAGES
D AND DGN PACKAGES
(TOP VIEW)
(TOP VIEW)
GND
1
8
OUT
GND
1
IN
IN
OUT
IN
2
7
2
†
IN
OUT
EN1
3
6
3
†
OC
†
†
EN
4
5
4
EN2
EN
TPS2043B/TPS2053B
TPS2044B/TPS2054B
D PACKAGE
D PACKAGE
(TOP VIEW)
(TOP VIEW)
1
16
1
GND
OC1
GND
2
15
2
IN1
OUT1
IN1
OC1
EN1 †
EN1 †
8
3
14
OUT2
3
OUT1
EN2 †
4
13
OC2
EN2 †
4
7
5
12
5
GND
OC3
GND
OUT2
6
IN2
6
11
OUT3
IN2
6
OC2
5
EN3 †
EN3 †
7
10
NC
7
8
9
NC
EN4 †
8
NC
W
80 m , Quad
80 m , Quad
W
W
500 mA
500 mA
TPS2044B
500 mA
TPS2085
500 mA
250 mA
TPS2054B
500 mA
TPS2086
500 mA
250 mA
TPS2048A
250 mA
TPS2087
500 mA
1 A
TPS2058
250 mA
TPS2095
250 mA
1 A
TPS2096
250 mA
TPS2097
250 mA
Copyright © 2010–2008, Texas Instruments Incorporated
8
OC1
OUT1
7
OUT2
6
OC2
5
16
OC1
15
OUT1
14
OUT2
13
OC2
12
OC3
11
OUT3
10
OUT4
9
OC4