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Product Detailed Parameters
- Description：OPTOISO 2.5KV 4CH TRANS 16-SSOP
- Series：NEPOC
- Mfr：Renesas Electronics Corporation
- Package：Strip
- Number of Channels：4
- Voltage - Isolation：2500Vrms
- Current Transfer Ratio (Min)：50% @ 5mA
- Current Transfer Ratio (Max)：400% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：5µs, 7µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：30mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：30 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：16-SSOP
- Grade：-
- Qualification：-
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Overview
The PS2805A-4-A is a four-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a forward current of 30 mA, and a forward voltage of 1.4 V. The device provides an isolation voltage of 2500 Vrms with a power dissipation of 80 mW. Current transfer ratio ranges from 50% to 400%, while switching times are specified at 5 us rise and 7 us fall. It is housed in an SSOP-16 package.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits via optical coupling.
- Integrates four independent channels for multi-signal transmission within a single compact package.
- Designed for AC input response applications with shielded ambient light rejection.
Applications
- AC input signal detection in industrial control systems
- Multi-channel data transmission interfaces
- General-purpose digital isolation circuits
Procurement Notes
Verify the component status as Not Recommended for New Designs (NRND) before implementation. Confirm that the SSOP-16 package dimensions align with existing PCB footprints. Ensure compatibility with the specified 30 mA forward current limits during circuit design validation.
Selection Notes
Select this component when four isolated channels are required in a dense layout. Compare against the PS2805C-4-A if higher collector-emitter voltage ratings are necessary. Evaluate thermal constraints given the 80 mW power dissipation limit in the SSOP-16 form factor.
Part Context
This part belongs to the PS2805A series of high-isolation optocouplers. It shares architectural similarities with other Renesas PS28xx devices but is distinct in its specific channel count and voltage ratings. The series utilizes GaAs LEDs and NPN silicon phototransistors for reliable signal transfer.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consider evaluating the PS2805C-4-A or PS2801-4-A based on specific voltage and speed requirements, subject to separate verification.
