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TPS27081ADRVR Fiches technique(PDF) 7 Page - Texas Instruments

No de pièce TPS27081ADRVR
Description  1.2 - 8V, 3A PFET High Side Load Switch with Level Shift & Adjustable Slew Rate Control
Download  14 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS27081ADRVR Fiches technique(HTML) 7 Page - Texas Instruments

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VIN
VOUT
R1/C1
ON/OFF
Q1
Q2
R1
COUT
(2, 3)
R2
(1)
(5)
(6)
(4)
GPIO
Up to
8V
Input
CIN
VDD
Component:
R1 = xkΩ
Note:
Use a higher value of R1 to minimize IQ
Standby
Module
Always ON
Modules
VDD
VOUT rise time
Components
= 470µs
VIN = 5.0V
:
R1 = xk
R2 = 3.3k
C1 = 120nF
Ω
Ω
VIN
VOUT
R1/C1
ON/OFF
Q1
Q2
R1
C1
R2
COUT
(2, 3)
R2
(1)
(5)
(6)
(4)
GPIO
3-5V
Input
TFT
LCD
Module
CIN
VIN
TPS27081A
www.ti.com
SLVSBE9A – APRIL 2012 – REVISED JULY 2012
APPLICATION EXAMPLES
TFT LCD Module Inrush Current Control
Figure 4. Inrush Current Control Using TPS27081A
LCD panels require inrush current control to prevent permanent system damages during turn-ON and turn-OFF
events.
Standby Power Isolation
Figure 5. Standby Power Generation Using TPS27081A
Many applications have some always ON modules to support various core functions. However, some modules
are selectively powered ON or OFF to save power and multiplexing of various on board resources. Such
modules that are selectively turned ON or OFF require standby power generation. In such applications
TPS27081 requires only a single pull-up resistor. In this configuration the VOUT voltage rise time is
approximately 250ns when VIN = 5V.
Copyright © 2012, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Link(s): TPS27081A


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