SN75451BP Darlington transistor driver
Description:
The SN75451BP is a dual, high-current Darlington transistor driver designed for interfacing between digital logic circuits and peripheral devices that require higher current than standard output logic can provide. It amplifies low-level digital input signals into higher-current outputs suitable for driving loads like LEDs, relays, motors, or solenoids. The SN75451BP is ideal for a variety of applications requiring control of higher-power devices from digital circuits.
Key Features:
- Dual independent channels
- Darlington transistor outputs for high-current drive capability
- Input voltage compatible with TTL logic (0V to 5V)
- Output current capability: up to 150mA per channel (typical)
- Wide operating voltage range: 4.5V to 6V (SN55451BP) or 0°C to 70°C (SN75451BP)
- Diode-clamped inputs for simplified circuit design
- Reverse-current protection on outputs
Technical Specifications:
- Package Type: PDIP-8
- Supply Voltage: 4.5V to 6V (SN55451BP) or 0°C to 70°C (SN75451BP)
- Output Current: 150mA (typical) per channel
- Input Voltage: 0V to 5V (compatible with TTL logic)
- Rise Time: 100ns (typical)
- Fall Time: 50ns (typical)
- Operating Temperature Range: -55°C to +125°C (SN55451BP) or 0°C to +70°C (SN75451BP)
- Dimensions: Varies depending on manufacturer
- Weight: Varies depending on manufacturer
Applications:
- Driving LEDs, lamps, and other low-power indicators
- Interfacing with relays, motors, and solenoids
- Buffering digital outputs for increased current driving capability
- Industrial control systems
- Robotics and automation projects
Datasheet:
For detailed technical information, refer to the SN75451BP DatasheetÂ