High CMR, High Speed Optocouplers

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It contains a GaAsP LED. The LED is optically coupled to an integrated high gain photo detector.

The HCPL-4504 series has short propagation delays and high CTR. The HCPL-4504 series also has a guaranteed propagation delay difference (tPLH-tPHL). These features make the HCPL-4504 series an excellent solution to IPM inverter dead time and other switching problems.The CTR, propagation delay, and CMR are specified both for TTL and IPM conditions which are provided for ease of application. This single channel, diode-transistor optocoupler is available in a 8-Pin DIP package. An insulating layer between a LED and an integrated photodetector provides electrical insulation between input and output. Separate connections for the photodiode bias and output-transistor collector increase the speed up to a hundred times that of a conventional phototransistor coupler by reducing the base collector capacitance.


  • Short Propagation Delays for TTL and IPM Applications
  • 15 kV/ms Minimum Common Mode Transient Immunity at Vcm = 1500V for TTL/Load Drive
  • High CTR at TA = 25 degrees C
    >25% for HCPL-4504
  • Electrical Specifications for Common IPM Applications
  • TTL Compatible
  • Guaranteed Performance from 0 degrees C to 70 degrees C
  • Open Collector Output
  • Safety Approval
UL Recognized - 3750 Vrms/1 min., 5000 Vrms/1 min. for Option 020
CSA Approved
IEC/EN/DIN EN 60747-5-2 Approved - VIORM = 630 Vpeak for Option 060
  • Options available are:
020 = UL 5000 V rms/1 Minute Option
060 = IEC/EN/DIN EN 60747-5-2 Option
300 = Gull-Wing Lead Option
500 = Tape and Reel Packaging Option
XXXE = Lead Free Option


  • Inverter Circuits and Intelligent Power Module (IPM) interfacing - High Common Mode Transient Immunity (> 10 kV/ms for an IPM load/drive) and (tPLH - tPHL) Specified
  • Line Receivers - Short Propagation Delays and Low Input-Output Capacitance
  • High Speed Logic Ground Isolation - TTL/TTL, TTL/CMOS, TTL/LSTTL
  • Replaces Pulse Transformers - Save Board Space and Weight
  • Analog Signal Ground Isolation - Integrated Photodetector Provides Improved Linearity over Phototransistors

Lifecycle Status


Substance Compliance

  • RoHS
    Pb & Pb-free options available
Specification Value
Lifecycle Active
Distrib. Inventory Yes
Product Type 1 MBd Transistor Optocoupler
RoHS6 Compliant Pb & Pb-free options available
Package 300mil DIP
IF Min. (mA) 12.0
CTR Min. (%) 22.0
Prop Delay (tPLH) Max. (µs) 1.4
Prop Delay (tPHL) Max. (µs) 1.0
PDD Max (µs) 1.3
CMR (min.) (V/µs) 10000.0
Vcm (V) 1500.0
UL Insulation Rating Viso (VRMS) 5000
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 630.0
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Application Note7 i
Brochures2 i
Design Guide1 i
FAQs2 i
Obsolescence Notice1 i
Options Data Sheet6 i
Product Change Notice (PCN)17 i
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Regulatory Certificate1 i
Reliability Data Sheet4 i
Selection Guide2 i
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