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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.

Applications

  • Cellular Phone
  • Smart Handheld Device
Key Spec.
RT9746
Status Active
Vin (min) (V) 3
Vin (max) (V) 6.7
Vin_ovp (typ) (V) 6.8
Delay Time (max) (us) 0.25
Ron (typ) (mOhm) 35
Features OCP;OVP
Package Type WL-CSP1.92x1.27-12(BSC)
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
Datasheet
TitleVersionLast UpdateDownload
RT9746: VBUS OVP with a PTVS DiodeV1.02016/04/13
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
Richtek Featured Product Tree [Aug., 2023] Selection Guide2023/08/07
Evaluation Boards
TitleLast UpdateDownload
RT9746 VBUS OVP with a PTVS Diode2021/01/21
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT9746WSCWL-CSP1.92x1.27-12(BSC)3,000 Request Digikey 5,236 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RT9746WSC Digikey 3 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Please confirm with our distributor or sales representative for actual stock status.
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