Diodes Incorporated
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PI3VST01 (Not Recommended for New Design (NRND))

NRND = Not Recommended for New Design

VGA, HPD Signal Generator

NOTE: Datasheet may not yet reflect updated package obsolescence/phase out status or Package Drawing. Please refer to the BUY NOW tab for the most up to date package options and drawings. Please refer to PCN/PDN tabs for most current package obsolescence/phase out status.
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Product Description

The VGA connector does not have a hot-plug pin to tell the system that a monitor is connected. More recent video standards, such as HDMI and DisplayPort, save power by adding a hot-plug pin which allows graphics outputs to be powered down when a monitor is not connected. The PI3VST01 HPD signal generator generates a monitor detection signal from a VGA source connector to tell the VGA source if an external monitor is connected or not. PI3VST01 allows notebook makers to shut off the VGA DAC when a monitor is not connected, thus saving 170 mW per DAC. PI3VST01 dissipates only 0.66 mW. The monitor detection scheme within the PI3VST01 will not affect normal operation of the video driver.


  • Hot Plug Detect Signal Generator for VGA connectors
  • Generates hot plug output signal telling system when monitor is present or not
  • Power Supply, 3.3V and 5.0V
  • ESD tolerance on pin 7 is up to +/-4kV contact per IEC61000-4-2 specification
  • -3dB BW of 1.7GHz (typ)
  • 4.75 Ohm On Resistance with 0.5 Ohm flatness (typ)
  • Low input/output capacitance (Con = 4.5pF, typ)
  • Packaging (Pb-free and Green):
    • 8-contact MSOP (U)
    • 10-contact TDFN (ZE)

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Configuration SPST
Differential Channels N/A
HotInsertion 0
Lanes N/A
OtherFeatures N/A
RailToRail 0
Signal Type Differential
Single Ended Channels 1
Voltage 3.3, 5

Technical Documents

Recommended Soldering Techniques


Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2519 2021-05-20 2021-11-20 Device End of Life (EOL)