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TPS2041BQDBVRQ1 Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS2041BQDBVRQ1
Descripción Electrónicos  CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS2041BQDBVRQ1 Datasheet(HTML) 1 Page - Texas Instruments

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background image
1
2
3
4
8
7
6
5
GND
IN
IN
EN
OUT
OUT
OUT
OC
TPS2051B
D PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
GND
IN
EN1
EN2
OC1
OUT1
OUT2
OC2
TPS2042B
D PACKAGE
(TOP VIEW)
1
2
3
5
4
IN
EN
OC
GND
GND
OUT
TPS2041B
DBV PACKAGE
(TOP VIEW)
TPS2041B-Q1
TPS2042B-Q1
TPS2051B-Q1
www.ti.com
SLVS782A – NOVEMBER 2007 – REVISED JUNE 2010
CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
Check for Samples: TPS2041B-Q1, TPS2042B-Q1, TPS2051B-Q1
1
FEATURES
APPLICATIONS
Heavy Capacitive Loads
Qualified for Automotive Applications
Short-Circuit Protection
70-m
Ω High-Side MOSFET
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)
Bidirectional Switch
Junction Temperature Range: –40°C to 125°C
ESD Protection Level Per AEC-Q100
Classification
UL Recognized, File Number E169910
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 incorporate 70-m
Ω 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 (typ).
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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