Photocoupler LITEON 6N138-L featuring base access terminal for gain bandwidth adjustment in high speed circuits
LITE-ON 6N138-L / 6N139-L Series Photocoupler
The LITE-ON 6N138-L / 6N139-L series are high gain photocouplers designed for applications requiring high current transfer ratio and isolation. These devices utilize a light emitter diode and an integrated high gain photodetector, offering extremely high current transfer ratios. Separate pins for the photodiode and output stage enable TTL-compatible saturation voltage and high-speed operation. The Vcc and Vo terminals can be tied together for conventional photo Darlington operation, and a base access terminal allows for gain bandwidth adjustment. They are suitable for digital logic ground isolation, low input current line receivers, telephone ring detectors, EIA-RS-232C line receivers, current loop receivers, and high common mode noise line receivers.
Product Attributes
- Brand: LITE-ON
- Origin: Taiwan, R.O.C.
- Certifications: UL, CSA approved
Technical Specifications
| Part Number | Description | CTR (%) Typical | Input Current (mA) Typical | Output Current (mA) | Isolation Voltage (Vrms) | Propagation Delay (s) tPHL Max | Propagation Delay (s) tPLH Max | Common Mode Transient Immunity (KV/s) Min |
|---|---|---|---|---|---|---|---|---|
| 6N138-L / 6N139-L Series | High gain photocoupler with TTL compatible output | 2000 | 0.5 | 60 | 5000 | 10 | 35 | 1 |
| 6N138-L | 1600 (IF=1.6mA) | 1.6 | 1.6 (IF=1.6mA, RL=2.2k) | 10 (IF=1.6mA, RL=2.2k) | 1 (IF=1.6mA) | |||
| 6N139-L | 2000 (IF=0.5mA) | 0.5 | 5 (IF=0.5mA, RL=4.7K) | 18 (IF=0.5mA, RL=4.7K) | 1 (IF=0.5mA) |
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