Overview
The SN75453BDRG4 is a dual-peripheral driver from Texas Instruments, part of the SN7545xB family. These devices are designed for use in systems that employ TTL (Transistor-Transistor Logic) and are characterized for high-current, high-speed switching applications. The SN75453B specifically functions as an OR gate, with its output internally connected to the bases of the npn output transistors. This device is rated for operation over a commercial temperature range of 0°C to 70°C, making it suitable for a variety of industrial and commercial environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | 4.75 | 5 | 5.25 | V |
| VI (Input Voltage) | - | - | 5.5 | V |
| VO (Off-state Output Voltage) | - | - | 30 | V |
| IOK (Continuous Collector or Output Current) | - | - | 400 | mA |
| Peak Collector or Output Current (tw ≤10 ms, duty cycle ≤50%) | - | - | 500 | mA |
| TJ (Operating Virtual Junction Temperature) | - | - | 150 | °C |
| TA (Operating Free-Air Temperature) | 0 | - | 70 | °C |
| tPLH (Propagation Delay Time, Low-to-High-Level Output) | 18 | 25 | - | ns |
| tPHL (Propagation Delay Time, High-to-Low-Level Output) | 26 | 35 | - | ns |
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 operating temperature range for the SN75453B?
The SN75453B operates over a temperature range of 0°C to 70°C.
- What is the maximum continuous collector or output current for the SN75453B?
The maximum continuous collector or output current is 400 mA.
- What type of logic gates does the SN75453B implement?
The SN75453B implements an OR gate.
- What is the maximum off-state output voltage for the SN75453B?
The maximum off-state output voltage is 30 V.
- What is the recommended supply voltage range for the SN75453B?
The recommended supply voltage range is 4.75 V to 5.25 V.
- Does the SN75453B have TTL-compatible inputs?
- What is the propagation delay time for low-to-high-level output?
The propagation delay time for low-to-high-level output is typically 25 ns.
- Is the SN75453B susceptible to output latch-up?
No, the SN75453B is designed to prevent output latch-up at 20 V after conducting 300 mA.
- What are some common applications for the SN75453B?
Common applications include high-speed logic buffers, power drivers, lamp drivers, LED drivers, line drivers, and memory drivers.
- What type of packages is the SN75453B available in?
The SN75453B is available in PDIP, SOIC, and SO packages.
