POWER AND LINEAR IC SOLUTIONS

Half-Pitch Phototransistor Optocouplers Provide Cost-Effective Isolation

The ACPL-214 and ACPL-217 from Avago are single-channel half-pitch phototransistor optocouplers, designed for AC or DC input respectively. They are particularly suitable for use in sequence controllers, I/O interfacing for programmable controllers and computers, and signal transmission between circuits of different potentials and impedances.



The ACPL-214 is an AC-input device containing two Light Emitting Diodes (LEDs) connected inversely in parallel, and optically coupled to a phototransistor. The ACPL-217 is a DC-input version that contains a single LED.

Both devices are supplied in a four-pin SO package. The input-output isolation voltage for both types of device is rated at 3000V RMS. Their response time is 2µs typically, while minimum Current Transfer Ratio (CTR) is 50% for the ACPL-217 and 20% for the ACPL-214 at input current of 5mA. Common mode rejection is 10kV/µs and the devices will satisfy all relevant CSA, UL and IE/EN requirements.

Features

• Single-channel half-pitch phototransistor optocouplers
• AC (ACPL-214) or DC (ACPL-217) options
• Current transfer ratio: 20% (ACPL-214), 50% (ACPL-217); at I_F ±5mA, V_CC 5V)
• High input-output isolation voltage: 3,000V RMS
• Fast non-saturated response time: typically 2μs at V_CC 10V, I_C 2mA, RL 100Ω)
• SO package
• Common mode rejection 10kV/μs (typical)
• Pending safety and regulatory approvals
  • CSA
  • UL 1577
  • IEC/EN/DIN EN 60747-5-2
• Lead-free option

Applications

• I/O interfacing for programmable controllers and computers
• Sequence controllers
• Measuring instruments
• Translation between differing voltage and impedance levels
• DALI Interface

For further information, including Datasheets for the ACPL-214 and ACPL-217, a copy of the Avago Optoisolation Product Selection Catalogue or the Optocoupler Designers Guide, please click here