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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | | |
| Part Status | Active |
| Logic Type | Peripheral Driver |
| Number of Elements | 2 |
| Number of Bits per Element | 2 |
| Input Type | - |
| Output Type | Open Collector |
| Current - Output High, Low | 300µA, 300mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 8-CDIP (0.300", 7.62mm) |
| Supplier Device Package | 8-CDIP (0.300", 7.62mm) |
| ROHS |  |
The SN55453BJG is a dual peripheral driver from Texas Instruments, designed to interface between low-power logic and high-current loads. It features two open-collector outputs capable of sinking up to 300mA, making it ideal for driving relays, lamps, solenoids, and small motors. Operating from a 4.5V to 5.5V supply, it is compatible with TTL logic levels. The device is housed in a rugged 8-pin ceramic CDIP and operates over the full military temperature range of -55°C to 125°C, ensuring reliability in harsh environments.
- High 300mA Sink Current: Directly drives relays and solenoids without external power transistors.
- Open-Collector Outputs: Provides flexibility to switch loads at different voltages (up to 30V with pull-up).
- Military Temperature Range (-55°C to 125°C): Suitable for aerospace and defense applications.
- Low Input Current (300µA): Minimizes loading on the driving logic, preserving signal integrity.
Relay and Solenoid Driving
The SN55453BJG is perfect for driving electromechanical relays and solenoids in industrial control panels. Its 300mA sink current can directly energize small relays without an external transistor, simplifying the BOM.
Lamp and LED Indicators
Use this driver to control incandescent lamps or high-current LED arrays in avionics cockpits. The open-collector output can handle the inrush current of cold lamps, which can be several times the steady-state current.
Motor and Actuator Control
In automotive and aerospace systems, this driver can switch small DC motors or linear actuators. The 300mA capability is sufficient for small positioning mechanisms, while the 300µA input current minimizes load on the controlling logic.
Logic-to-Power Interface
Bridge the gap between low-power TTL logic and high-power loads. The SN55453BJG accepts standard 5V logic inputs and provides a robust open-collector output that can switch loads up to 30V (with external pull-up).
Alarm and Warning Systems
Drive audible alarms (buzzers) and visual indicators in safety-critical systems. The wide -55°C to 125°C temperature range ensures reliable operation in extreme environments like engine compartments or outdoor enclosures.
Peripheral Power Switching
In test equipment, use this driver to switch power to various peripheral modules. The open-collector output allows for wired-OR configurations, enabling multiple drivers to control a single load safely.
- Q: What is the logic family of the SN55453BJG?
- A: It is a bipolar peripheral driver, not a standard logic family, designed for high-current switching.
- Q: What is the function of this IC?
- A: It is a dual peripheral driver used to drive relays, lamps, and solenoids from logic signals.
- Q: How many channels does it have?
- A: It has 2 independent driver channels.
- Q: What is the output type?
- A: The outputs are Open Collector, allowing them to sink high currents (up to 300mA) to ground.
- Q: What is the operating voltage?
- A: It operates from 4.5V to 5.5V, compatible with standard TTL logic levels.
- Q: What package is it available in?
- A: It comes in an 8-pin CDIP (Ceramic Dual In-line Package) with a 0.300-inch width.
SN55453BJG.pdf
- Q: What is the logic family of the SN55453BJG?
- A: It is a bipolar peripheral driver, not a standard logic family, designed for high-current switching.
- Q: What is the function of this IC?
- A: It is a dual peripheral driver used to drive relays, lamps, and solenoids from logic signals.
- Q: How many channels does it have?
- A: It has 2 independent driver channels.
- Q: What is the output type?
- A: The outputs are Open Collector, allowing them to sink high currents (up to 300mA) to ground.
- Q: What is the operating voltage?
- A: It operates from 4.5V to 5.5V, compatible with standard TTL logic levels.
- Q: What package is it available in?
- A: It comes in an 8-pin CDIP (Ceramic Dual In-line Package) with a 0.300-inch width.