IP4786CZ32

DVI and HDMI interface ESD and overcurrent protection, DDC/CEC buffering, hot plug detect and backdrive protection


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The IP4786CZ32 is designed to protect High-Definition Multimedia Interface (HDMI) transmitter host interfaces. It includes HDMI 5 V overcurrent / overvoltage protection, Data Display Channel (DDC) buffering and decoupling, hot plug detect, backdrive protection, Consumer Electronic Control (CEC) buffering and decoupling, and ±8 kV contact ElectroStatic Discharge (ESD) protection for all I/Os in accordance with the IEC 61000-4-2, level 4 standard.

The IP4786CZ32 incorporates Transmission Line Clamping (TLC) technology on the high-speed Transition Minimized Differential Signaling (TMDS) lines to simplify routing and help reduce impedance discontinuities. All TMDS lines are protected by an impedance-matched diode configuration that minimizes impedance discontinuities caused by typical shunt diodes.

The enhanced 60 mA overcurrent / overvoltage linear regulator guarantees HDMI-compliant 5 V output voltage levels with up to 6.5 V inputs.

The DDC lines use a new buffering concept which decouples the internal capacitive load from the external capacitive load for use with standard Complementary Metal Oxide Semiconductor (CMOS) or Low Voltage Transistor-Transistor Logic (LVTTL) I/O cells down to 1.8 V. This buffering also redrives the DDC and CEC signals, allowing the use of longer or cheaper HDMI cables with a higher capacitance. The internal hot plug detect module simplifies the application of the HDMI transmitter to control the hot plug signal.

All lines provide appropriate integrated pull-ups and pull-downs for HDMI compliance and backdrive protection to guarantee that HDMI interface signals are not pulled down if the system is powered down or enters Standby mode. Only a single external capacitor is required for operation.

Features and benefits

  • HDMI 1.3a and 1.4, 340 MHz pixel clock, deep color and HDMI Ethernet and Audio return Channel (HEAC) compatible
  • Pb-free, Restriction of Hazardous Substances (RoHS) compliant and free of halogen and antimony (Dark Green compliant)
  • Robust ESD protection without degradation after repeated ESD strikes
  • Impedance matched 100 Ω differential transmission line ESD protection for TMDS lines (±10 Ω). No Printed-Circuit Board (PCB) pre-compensation required
  • All external I/O lines with ESD protection of at least ±8 kV in accordance with the IEC 61000-4-2, level 4 standard
  • DDC capacitive decoupling between system side and HDMI connector side and buffering to drive cable with high capacitive load (> 700 pF/25 m)
  • Hot plug detect module
  • CEC buffering and isolation, with integrated backdrive-protected 26 kΩ pull-up
  • Simplified flow-through routing utilizing less overall PCB space
  • Highest integration in a small footprint, PCB level, optimized RF routing, 32-pin HVQFN leadless package

Applications

  • The IP4786CZ32 can be used for a wide range of HDMI source devices, consumer and computing electronics:
    • Standard-Definition (SD) and High-Definition (HD) DVD player
    • Set-top box
    • PC graphic card
    • Game console
    • HDMI picture performance quality enhancer module
    • Digital Visual Interface (DVI)
All information on this product information page is subject to the subsequent disclaimers:
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Parametrics of this product

Type numberPackagePackage nameNr of protected linesCd [typ] (pF)VESD IEC61000-4-2 (kV)ApplicationSize (mm)BufferLevel shifter
IP4786CZ32SOT617-3
(HVQFN32)		HVQFN32130.68HDMI transmitter signal conditioning5.0 x 5.0 x 1.0yy

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
IP4786CZ32IP4786CZ32,1189340 647 25118Volume productionSOT617-3
(HVQFN32) 		Reel Pack, SMD, 13"Standard Marking

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
IP4786CZ32IP4786CZ32,118IP4786CZ32Always Pb-free11
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Documentation for this product

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
IP4786CZ329340 647 25118IP4786CZ32,118NADIGI-KEY CORPORATION11,7165/24/2012Buy online 
   EUFARNELL3,7985/24/2012Buy online 
   ASIAELEMENT14 APAC3,1745/24/2012Buy online 
   NANEWARK/ELEMENT143,1735/24/2012Buy online 

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