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RT9746 Scheda tecnica(PDF) 1 Page - Richtek Technology Corporation

Il numero della parte RT9746
Spiegazioni elettronici  VBUS OVP with a PTVS Diode
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Produttore elettronici  RICHTEK [Richtek Technology Corporation]
Homepage  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

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RT9746
®
DS9746-00 March 2016
www.richtek.com
1
©
Copyright 2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Applications
Cellular Phone
Smart Handheld Device
VBUS OVP with a PTVS Diode
General Description
The RT9746 is an overvoltage protection devices feature a
low 35m
Ω (typ) RON internal FET with PTVS diode. The
PTVS also protects the devices from surges up to 100V.
When the input voltage exceeds the overvoltage threshold,
the internal FET is turned off to prevent damage to the
protected down stream components.
The internal Over Voltage Thresholds (OVP) are preset to
6.8V typical. The RT9746 also feature an over-current
protection and up to 4.5A.
The RT9746 is offered in a small WL-CSP-12B (BSC)
package provides small PCB area applications.
Marking Information
Features
PTVS Diode Embedded for VBUS Surge Protection
Warning Indicator for OVP or UVP
28V Maximum Rating for DC Adapter
Integrated Over-Voltage and Over Current
Protection FET on VBUS for Fault Isolation
Ordering Information
Note :
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Pin Configurations
(TOP VIEW)
WL-CSP-12B 1.92x1.27 (BSC)
GND_
PTVS
VOUT
GND
VOUT
WRNB
GND_
PTVS
VOUT
VIN
VIN
OVPFB
VIN
GND_
PTVS
A3
A4
A1
A2
B3
B4
B1
B2
C3
C4
C1
C2
3CW
3C : Product Code
W : Date Code
RT9746WSC
Package Type
WSC : WL-CSP-12B 1.92x1.27
RT9746
OVP Threshold Option
Default : 6.8V
A : 11.5V
B : 14.5V
C : 6.2V
RT9746
VOUT
GND_PTVS
VIN
WRNB
OVPFB
R2
R1
CIN
Adaptor
Charger
Processor
VDDIO
GND
COUT
R3
Simplified Application Circuit


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