TPS2032-Q1 Datasheet, PDF (1/20 Pages) Texas Instruments – POWER-DISTRIBUTION SWITCHES

TPS2032-Q1
www.ti.com
POWER-DISTRIBUTION SWITCHES
Check for Samples: TPS2032-Q1
SLVS960 – MARCH 2010
FEATURES
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• Qualified for Automotive Applications
• 33-mΩ (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 mA
• No Drain-Source Back-Gate Diode
• Available in 8-pin SOIC Package
• Ambient Temperature Range, –40°C to 125°C
• 2-kV Human-Body-Model, 200-V
Machine-Model ESD Protection
• UL Listed – File No. E169910
GND
IN
IN
EN
D PACKAGE
(TOP VIEW)
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8
2
7
3
6
4
5
OUT
OUT
OUT
OC
DESCRIPTION
The TPS2032 power distribution switch is intended for applications where heavy capacitive loads and short
circuits are likely to be encountered. These devices are 50-mΩ 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 TPS2032 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 TPS2032 limits at 1.5-A load. The TPS2032 is available in an 8-pin small-outline integrated-circuit (SOIC)
package and operates over a temperature range of –40°C to 125°C.
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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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated