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PDF RT9746 Data sheet ( Hoja de datos )
| Número de pieza | RT9746 | |
| Descripción | VBUS OVP | |
| Fabricantes | Richtek | |
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®
RT9746
VBUS OVP with a PTVS Diode
General Description
The RT9746 is an overvoltage protection devices feature a
low 35mΩ (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.
Ordering Information
RT9746
Package Type
WSC : WL-CSP-12B 1.92x1.27
OVP Threshold Option
Default : 6.8V
A : 11.5V
B : 14.5V
C : 6.2V
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.
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
Applications
Cellular Phone
Smart Handheld Device
Pin Configurations
(TOP VIEW)
A1 A2
GND VOUT
B1 B2
WRNB VOUT
C1 C2
OVPFB VIN
A3
VOUT
B3
VIN
C3
VIN
A4
GND_
PTVS
B4
GND_
PTVS
C4
GND_
PTVS
WL-CSP-12B 1.92x1.27 (BSC)
Marking Information
RT9746WSC
3C : Product Code
3CW
W : Date Code
Simplified Application Circuit
Adaptor
CIN
R2
R1
RT9746
VIN VOUT
OVPFB
WRNB
GND_PTVS GND
VDDIO
R3
Charger
COUT
Processor
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS9746-00 March 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1
1 page  
Typical Application Circuit
RT9746
Adaptor
CIN
0.1µF
RT9746
B3, C2, C3 VIN
VOUT A2, A3, B2
R2
C1 OVPFB
R1
VDDIO
WRNB B1
R3
GND_PTVS GND
A4, B4, C4
A1
Charger
COUT
1µF
Processor
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS9746-00 March 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet RT9746.PDF ] | |
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