Overview
The SN75454BPS is a dual-peripheral driver IC produced by Texas Instruments. It is designed for use in systems that employ TTL (Transistor-Transistor Logic) and is part of the SN7545xB family, which replaces the earlier SN75450 and SN75450A families. These devices are characterized for high-current, high-speed switching applications and are functionally interchangeable with their predecessors while ensuring freedom from latch-up. The SN75454B specifically functions as a dual peripheral NOR driver, with the output of the logic gates internally connected to the bases of the npn output transistors.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SO (8-pin) | - |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage | 4.75 to 5.25 | V |
| Continuous Collector or Output Current | 400 | mA |
| Peak Collector or Output Current (tw ≤10 ms, duty cycle ≤50%) | 500 | mA |
| Off-state Output Voltage | 30 | V |
| High-level Input Voltage | 2 | V |
| Low-level Input Voltage | 0.8 | V |
| Junction-to-ambient Thermal Resistance | 119.6 | °C/W |
Key Features
- Characterized for use up to 300 mA
- High-voltage outputs up to 30 V
- No output latch-up at 20 V (after conducting 300 mA)
- High-speed switching
- Open-collector outputs
- Circuit flexibility for varied applications
- TTL-compatible diode-clamped inputs
- Standard supply voltages
Applications
- High-speed logic buffers
- Power drivers
- Lamp drivers
- LED drivers
- Line drivers
- Memory drivers
Q & A
- What is the SN75454BPS used for?
The SN75454BPS is used in systems that employ TTL logic, particularly for high-current, high-speed switching applications such as logic buffers, power drivers, lamp drivers, LED drivers, line drivers, and memory drivers.
- What is the operating temperature range of the SN75454BPS?
The operating temperature range of the SN75454BPS is from 0°C to 70°C.
- What is the maximum output voltage of the SN75454BPS?
The maximum output voltage of the SN75454BPS is up to 30 V.
- Does the SN75454BPS have latch-up protection?
Yes, the SN75454BPS is designed to ensure freedom from latch-up, even after conducting 300 mA at 20 V.
- What type of inputs does the SN75454BPS have?
The SN75454BPS has TTL-compatible diode-clamped inputs.
- What is the continuous collector or output current of the SN75454BPS?
The continuous collector or output current of the SN75454BPS is 400 mA.
- What is the peak collector or output current of the SN75454BPS?
The peak collector or output current of the SN75454BPS is 500 mA (tw ≤10 ms, duty cycle ≤50%).
- What are the typical supply voltages for the SN75454BPS?
The typical supply voltages for the SN75454BPS are between 4.75 V and 5.25 V.
- What type of outputs does the SN75454BPS have?
The SN75454BPS has open-collector outputs.
- What is the junction-to-ambient thermal resistance of the SN75454BPS?
The junction-to-ambient thermal resistance of the SN75454BPS is 119.6 °C/W.
- Is the SN75454BPS available in different packages?
Yes, the SN75454BPS is available in various packages including SO (8-pin), PDIP (8-pin), SOIC (8-pin), and others.
