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TPS2051P Datasheet

  • TPS2051P

  • POWER-DISTRIBUTION SWITCHES

  • 23頁

  • TI

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TPS2041, TPS2051
POWER-DISTRIBUTION SWITCHES
SLVS172A 鈥揂UGUST 1998 鈥?REVISED APRIL 1999
D
D
D
D
D
D
D
D
D
D
D
D
D
135-m鈩?-Maximum (5-V Input) High-Side
MOSFET Switch
500 mA Continuous Current
Short-Circuit and Thermal Protection With
Overcurrent Logic Output
Operating Range . . . 2.7 V to 5.5 V
Logic-Level Enable Input
2.5-ms Typical Rise Time
Undervoltage Lockout
10
碌A(chǔ)
Maximum Standby Supply Current
Bidirectional Switch
Available in 8-pin SOIC and PDIP Packages
Ambient Temperature Range, 鈥?0擄C to 85擄C
2-kV Human-Body-Model, 200-V
Machine-Model ESD Protection
UL Listed 鈥?File No. E169910
TPS2041
D OR P PACKAGE
(TOP VIEW)
GND
IN
IN
EN
1
2
3
4
8
7
6
5
OUT
OUT
OUT
OC
TPS2051
D OR P PACKAGE
(TOP VIEW)
GND
IN
IN
EN
1
2
3
4
8
7
6
5
OUT
OUT
OUT
OC
description
The TPS2041 and TPS2051 power distribution switches are intended for applications where heavy capacitive
loads and short circuits are likely to be encountered. The TPS2041 and the TPS2051 are 135-m鈩?N-channel
MOSFET high-side power switches. Each switch is controlled by a logic enable compatible with 5-V and 3-V
logic. Gate drive is provided by an internal charge pump that controls 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 TPS2041 and TPS2051 limit
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 in overcurrent 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 TPS2041 and TPS2051 are designed to limit at 0.9-A load. These power distribution switches are available
in 8-pin small-outline integrated circuit (SOIC) and 8-pin plastic dual-in-line packages (PDIP) and operate over
an ambient temperature range of 鈥?0擄C to 85擄C.
AVAILABLE OPTIONS
RECOMMENDED
MAXIMUM CONTINUOUS
LOAD CURRENT
(A)
0.5
0.5
TYPICAL SHORT-CIRCUIT
CURRENT LIMIT AT 25擄C
(A)
0.9
0.9
PACKAGED DEVICES
SOIC
(D)鈥?/div>
TPS2041D
TPS2051D
PDIP
(P)
TPS2041P
TPS2051P
TA
鈥?0擄C to 85擄C
鈥?0擄C to 85擄C
ENABLE
Active low
Active high
鈥?The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2041DR)
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.
This document contains information on products in more than one phase
of development. The status of each device is indicated on the page(s)
specifying its electrical characteristics.
Copyright
漏
1999, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

TPS2051P 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

  • PMIC - 電源分配開關(guān)

  • -

  • 高端開關(guān)

  • 1

  • 95 毫歐

  • 是

  • 900mA

  • 2.7 V ~ 5.5 V

  • -40°C ~ 85°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-PDIP

  • 管件

  • TPS2051BEVM-292-ND - TPS2051BEVM-292TPS2051BEVM-290-ND - TPS2051BEVM-290296-31119-ND - EVAL MODULE FOR TPS2051B

  • 296-3411-5

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