TPS2041A, TPS2042A, TPS2043A, TPS2044A
TPS2051A, TPS2052A, TPS2053A, TPS2054A
CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
SLVS247 – SEPTEMBER 2000
D 80-mΩ High-Side MOSFET Switch
D 500 mA Continuous Current Per Channel
D Independent Thermal and Short-Circuit
Protection With Overcurrent Logic Output
D Operating Range . . . 2.7 V to 5.5 V
D CMOS- and TTL-Compatible Enable Inputs
D 2.5-ms Typical Rise Time
D Undervoltage Lockout
D 10 µA Maximum Standby Supply Current
for Single and Dual (20 µA for Triple and
Quad)
D Bidirectional Switch
D Ambient Temperature Range, 0°C to 85°C
D ESD Protection
D UL Listed – File No. E169910
description
TPS2041A, TPS2051A
D PACKAGE
(TOP VIEW)
GND
IN
IN
EN†
1
2
3
4
8 OUT
7 OUT
6 OUT
5 OC
TPS2042A, TPS2052A
D PACKAGE
(TOP VIEW)
GND
IN
EN1†
EN2†
1
2
3
4
8 OC1
7 OUT1
6 OUT2
5 OC2
TPS2043A, TPS2053A
D PACKAGE
(TOP VIEW)
TPS2044A, TPS2054A
D PACKAGE
(TOP VIEW)
GNDA
IN1
EN1†
EN2†
GNDB
IN2
EN3†
NC
1
2
3
4
5
6
7
8
16 OC1
15 OUT1
14 OUT2
13 OC2
12 OC3
11 OUT3
10 NC
9 NC
GNDA
IN1
EN1†
EN2†
GNDB
IN2
EN3†
EN4†
1
2
3
4
5
6
7
8
16 OC1
15 OUT1
14 OUT2
13 OC2
12 OC3
11 OUT3
10 OUT4
9 OC4
The TPS2041A through TPS2044A and
TPS2051A through TPS2054A power-distribution
switches are intended for applications where
† All enable inputs are active high for the TPS205xA series.
NC – No connect
heavy capacitive loads and short circuits are likely to be encountered. These devices incorporate 80-mΩ
N-channel MOSFET high-side power switches for power-distribution systems that require multiple power
switches in a single package. Each switch is controlled by an independent 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, these devices limit 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 the switch
remains off until valid input voltage is present. These power-distribution switches are designed to current limit
at 0.9 A.
33 mΩ, single TPS201xA 0.2 A – 2 A
TPS202x 0.2 A – 2 A
TPS203x 0.2 A – 2 A
80 mΩ, dual
GENERAL SWITCH CATALOG
TPS2042
TPS2052
TPS2046
TPS2056
500 mA
500 mA
250 mA
250 mA
80 mΩ, dual
80 mΩ, triple
80 mΩ, quad
80 mΩ, quad
80 mΩ, single
TPS2014
TPS2015
TPS2041
TPS2051
TPS2045
TPS2055
600 mA
1A
500 mA
500 mA
250 mA
250 mA
260 mΩ
TPS2100/1
TPS2080 500 mA
IN1 500 mA TPS2081 500 mA TPS2043 500 mA
IN1
IN2
1.3 Ω
IN2 10 mA
OUT
TPS2102/3/4/5
IN1 500 mA
IN2 100 mA
TPS2082
TPS2090
TPS2091
TPS2092
500 mA
250 mA
250 mA
250 mA
TPS2053
TPS2047
TPS2057
500 mA
250 mA
250 mA
TPS2044
TPS2054
TPS2048
TPS2058
500 mA
500 mA
250 mA
250 mA
TPS2085
TPS2086
TPS2087
TPS2095
500 mA
500 mA
500 mA
250 mA
TPS2096 250 mA
TPS2097 250 mA
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.
PRODUCTION DATA information is 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.
•POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 2000, Texas Instruments Incorporated
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