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Description
Features:
| CATEGORY | SPECIFICATIONS |
|---|---|
| Product Name | TLP281 4-Channel Optocoupler Relay Control Module |
| Chip Type | TLP281 (Toshiba optocoupler) |
| Function | Low-level to high-level isolation control switching |
| Channels | 4 independent control channels (IN1–IN4 / OUT1–OUT4) |
| Input Control | IN1 / IN2 / IN3 / IN4 (MCU or IO port control) |
| Output Control | OUT1 / OUT2 / OUT3 / OUT4 |
| High Voltage Supply (HVCC) | Connected to controlled high-voltage positive |
| Ground (HGND) | Connected to controlled high-voltage negative |
| HVCC Limit | ≤ 24V |
| Output Current | HVCC / 5.1k per channel |
| Absorption Current | 500 mA |
| Control Logic | IN high → OUT = HVCC; IN low → OUT = HGND |
| Isolation Method | Optocoupler isolation (TLP281) |
| Key Features | Electrical isolation between control and load side |
| Supports MCU low-voltage control of high-voltage devices | |
| Multi-channel switching (4 channels) | |
| Simple IO-based control | |
| Applications | Motor control (e.g., 24V motor switching) |
| High-voltage load switching | |
| Industrial control systems | |
| MCU-based relay replacement circuits | |
| Automation and power control systems |
Package Includes:
1 x A87 4 Channel Optocoupler Isolation Module
1 x A87 4 Channel Optocoupler Isolation Module
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