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SLVS190B DECEMBER 1998 REVISED MARCH 2004
1
TI.COM
33-m
(5-V Input) High-Side MOSFET
Switch
Short-Circuit and Thermal Protection
Overcurrent Logic Output
Operating Range . . . 2.7 V to 5.5 V
Logic-Level Enable Input
Typical Rise Time . . . 6.1 ms
Undervoltage Lockout
Maximum Standby Supply
Current . . . 10
μ
A
No Drain-Source Back-Gate Diode
Available in 8-pin SOIC and PDIP Packages
Ambient Temperature Range, 40
°
C to 85
°
C
2-kV Human-Body-Model, 200-V
Machine-Model ESD Protection
UL Listed File No. E169910
description
The TPS203x family of power distribution switches is intended for applications where heavy capacitive loads
and short circuits are likely to be encountered. These devices are 50-m
N-channel MOSFET high-side power
switches. The switch is controlled by a logic enable compatible with 5-V logic and 3-V logic. 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 TPS203x limits the output
current to a safe level by switching into a constant-current mode, pulling the overcurrent (OC) 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 TPS203x devices differ only in short-circuit current threshold. The TPS2030 limits at 0.3-A load, the
TPS2031 at 0.9-A load, the TPS2032 at 1.5-A load, the TPS2033 at 2.2-A load, and the TPS2034 at 3-A load
(see Available Options). The TPS203x is available in an 8-pin small-outline integrated-circuit (SOIC) package
and in an 8-pin dual-in-line (DIP) package and operates over a junction temperature range of 40
°
C to 125
°
C.
TPS201xA
TPS202x
TPS203x
33 m
, single
0.2 A 2 A
0.2 A 2 A
0.2 A 2 A
TPS2014
TPS2015
TPS2041
TPS2051
TPS2045
TPS2055
80 m
, single
600 mA
1 A
500 mA
500 mA
250 mA
250 mA
GENERAL SWITCH CATALOG
TPS2042
TPS2052
TPS2046
TPS2056
80 m
, dual
500 mA
500 mA
250 mA
250 mA
TPS2100/1
260 m
IN1 500 mA
IN2 10 mA
OUT
IN1
IN2
TPS2102/3/4/5
IN1 500 mA
IN2 100 mA
1.3
TPS2043
TPS2053
TPS2047
TPS2057
80 m
, triple
500 mA
500 mA
250 mA
250 mA
TPS2044
TPS2054
TPS2048
TPS2058
80 m
, quad
500 mA
500 mA
250 mA
250 mA
Copyright
1999 2004 Texas Instruments Incorporated
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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.
1
2
3
4
8
7
6
5
GND
IN
IN
EN
OUT
OUT
OUT
OC
D OR P PACKAGE
(TOP VIEW)