Overview
The SN55453BJG is a dual-peripheral driver from Texas Instruments, designed for use in systems that employ TTL logic. This device is part of the SN5545xB family, which is functionally interchangeable with and replaces the earlier SN75450 and SN75450A families. The SN55453BJG is specifically an OR driver, with its logic gates internally connected to the bases of the npn output transistors. It is characterized for operation over the full military temperature range of –55°C to 125°C, making it suitable for a wide range of applications requiring high reliability and performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5 | 5.5 | V |
| Input Voltage (VI) | 5.5 | V | ||
| Off-State Output Voltage (VO) | 30 | V | ||
| Continuous Collector or Output Current (IOK) | 400 | mA | ||
| Peak Collector or Output Current (II) | 500 | mA (tw ≤10 ms, duty cycle ≤50%) | ||
| Operating Free-Air Temperature (TA) | –55 | 125 | °C | |
| Storage Temperature (Tstg) | –65 | 150 | °C | |
| Propagation Delay Time (tPLH) | 18 | 25 | ns | |
| Propagation Delay Time (tPHL) | 18 | 25 | 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 of the SN55453BJG? The SN55453BJG operates over the full military temperature range of –55°C to 125°C.
- What is the maximum output voltage of the SN55453BJG? The maximum output voltage is up to 30 V.
- What is the maximum continuous collector or output current of the SN55453BJG? The maximum continuous collector or output current is 400 mA.
- Does the SN55453BJG have TTL-compatible inputs? Yes, the SN55453BJG has TTL-compatible diode-clamped inputs.
- What types of logic gates are available in the SN5545xB family? The SN5545xB family includes AND, NAND, OR, and NOR logic gates.
- What is the typical propagation delay time of the SN55453BJG? The typical propagation delay time (tPLH and tPHL) is 25 ns.
- How should the power supply be configured for the SN55453BJG? The power supply can be any voltage between the minimum and maximum supply voltage rating, and a bypass capacitor (e.g., 0.1-µF) should be used on the VCC pin.
- What are the recommended layout guidelines for the SN55453BJG? Thin traces can be used on the input due to low-current logic, and care should be taken to separate the input channels to eliminate crosstalk. A bypass capacitor on the VCC pin is also recommended.
- Is the SN55453BJG suitable for high-speed applications? Yes, the SN55453BJG is designed for high-speed switching applications.
- What are the package options available for the SN55453BJG? The SN55453BJG is available in CDIP (JG package) and other package types such as SOIC, PDIP, and LCCC.
