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SN75453BD

SN75453BD Peripheral Driver, 300 mA Sink, 8-SOIC

MPNSN75453BD
End of Life

Texas Instruments SN75453BD, dual peripheral driver, open-collector outputs, 300 mA sink per channel, 4.75 V to 5.25 V supply, 8-SOIC surface-mount package, 0°C to 70°C operating temperature.

$0.99Ref. price · indicative, final on quote
Texas Instruments SN75453BD datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN75453BD specifications
ParameterValue
Logic typePeripheral Driver
Output typeOpen Collector
MountingSurface Mount
Supply voltage4.75V ~ 5.25V
Current - output high, low-, 300mA
Operating temperature0°C ~ 70°C (TA)
PackageTube
Case8-SOIC (0.154\", 3.90mm Width)
Number of elements2
Number of bits per element2

Product details

Dual peripheral driver with 300 mA open-collector outputs

Typical applications include driving relays, solenoids, small DC motors, lamps, and other inductive or resistive loads from TTL/5 V logic outputs.

Each of the two driver elements can sink 300 mA continuously when the output is low. That is enough current to pull in a standard 5 V relay coil (typically 50–150 mA) or drive a small incandescent lamp directly. The open-collector output means the load connects between an external supply (up to the driver's breakdown voltage, typically 30 V or higher for this family) and the output pin; the driver pulls the pin low to energise the load. No high-side drive is provided — the output only sinks current, never sources it.

Supply and temperature boundaries

Do not plan to run this part from 3.3 V or from an unregulated 5 V rail that dips below 4.75 V under load.

Frequently asked questions

Can SN75453BD drive a relay?

Yes. Each output can sink 300 mA, which is sufficient for most 5 V relay coils (typically 50–150 mA). The open-collector output connects the relay coil between an external supply and the driver pin; the driver pulls the output low to energise the coil.

Is SN75453BD equivalent to SN75453B?

The SN75453BD is the surface-mount (8-SOIC) variant of the SN75453B. The 'D' suffix indicates the SOIC package; the underlying driver function and ratings are the same. The SN75453B typically comes in a through-hole DIP package.