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RT9728C Fiches technique(PDF) 3 Page - Richtek Technology Corporation

No de pièce RT9728C
Description  Power Switch with Programmable Current Limit
PDF  13 Pages
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Fabricant  RICHTEK [Richtek Technology Corporation]
Site Internet  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9728C Fiches technique(HTML) 3 Page - Richtek Technology Corporation

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RT9728C
3
DS9728C-00 October 2015
www.richtek.com
©
Copyright 2015 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Function Block Diagram
≒
60
UVLO
Current
Limit
7.5ms
Deglitch
4ms
Deglitch
Thermal
Sense
Drive
Reverse Voltage
Comparator
Switch
well
Current
Sense
+
-
VOUT
ILIM
GND
EN
VIN
FAULT
Operation
The RT9728C are current-limited, power-distribution
switches using P-channel MOSFETs for applications
where short circuits or heavy capacitive loads will be
encountered. These devices allow the user to program
the current-limit threshold between 75mA and 1.3A (typ)
via an external resistor.Additional device shutdown features
include over temperature protection and reverse-voltage
protection.
The driver controls the gate voltage of the power switch.
The driver incorporates circuitry that controls the rise and
fall times of the output voltage to limit large current and
voltage surges and provides built-in soft-start functionality.
The RT9728C enters the constant-current mode when the
load exceeds the current-limit threshold.



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