TPS2080 Datasheet, PDF (1/19 Pages) Texas Instruments – POWER DISTRIBUTION SWITCHES

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TPS2080, TPS2081, TPS2082 DUAL,
TPS2085, TPS2086, TPS2087 QUAD
POWERĆDISTRIBUTION SWITCHES
SLVS202A − SEPTEMBER 2000 − REVISED MARCH 2001
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
TPS2080, TPS2081, AND TPS2082
D PACKAGE
(TOP VIEW)
GND 1
IN1 2
IN2 3
EN1^† 4
8 OC
7 OUT1
6 OUT2
5 EN2^†
† _{See Available Options table}
D 10 µA Maximum Standby Supply Current
D Bidirectional Switch
D Available in 8-Pin and 16-Pin SOIC
TPS2085, TPS2086 AND TPS2087
D PACKAGE
(TOP VIEW)
Packages
D Ambient Temperature Range, 0°C to 85°C
D ESD Protection
description
GNDA 1
IN1 2
IN2 3
EN1^† 4
GNDB 5
16 OCA
15 OUT1
14 OUT2
13 EN2^†
12 OCB
The TPS2080, TPS2081, and TPS2082 dual and
the TPS2085, TPS2086 and TPS2087 quad
power-distribution switches are intended for
IN3 6
IN4 7
EN3^† 8
11 OUT3
10 OUT4
9 EN4^†
applications where heavy capacitive loads and
short circuits are likely to be encountered. The
† _{See Available Options table}
TPS208x 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, the TPS208x 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 the switch
remains off until valid input voltage is present. The TPS208x devices are designed to current limit at 1.0-A load.
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
TPS2082
TPS2090
TPS2091
500 mA
250 mA
250 mA
TPS2053
TPS2047
TPS2057
500 mA
250 mA
250 mA
TPS2044
TPS2054
TPS2048
500 mA
500 mA
250 mA
TPS2085
TPS2086
TPS2087
500 mA
500 mA
500 mA
IN2 100 mA ^{TPS2092 250 mA}
TPS2058 250 mA ^{TPS2095 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.
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Copyright  2001, Texas Instruments Incorporated
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