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 Datasheet