Description
The HCPL-4504 and HCPL-0454 contain a GaAsP LED while the HCPL-J454 and HCNW4504 contain an AlGaAs 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.

FEATUREs
• Short propagation delays for TTL and IPM applications
• 15 kV/μs minimum Common Mode Transient immunity at VCM = 1500 V for TTL/load drive
• High CTR at TA = 25°C
   >25% for HCPL-4504/0454
   >23% for HCNW4504
   >19% for HCPL-J454
• Electrical specifications for common IPM applications
• TTL compatible
• Open collector output
• Safety approval:
   UL recognized
   – 3750 V rms/1min. for HCPL-4504/0454/J454
   – 5000 V rms/1min. for HCPL-4504 Option 020 and HCNW4504
   CSA approved
   IEC/EN/DIN EN 60747-5-2 approved
   – VIORM = 560 Vpeak for HCPL-0454 Option 060
   – VIORM = 630 Vpeak for HCPL-4504 Option 060
   – VIORM = 891 Vpeak for HCPL-J454
   – VIORM = 1414 Vpeak for HCNW4504
  
Applications
• Inverter circuits and Intelligent Power Module (IPM) interfacing: High Common Mode Transient immunity (> 10 kV/μs for an IPM load/drive) and (tPLH - tPHL) Specified (see Power Inverter Dead Time section)
• Line receivers: Short propagation delays and low in put-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