LM18293N

The LM18293N from Texas Instruments is a versatile four-channel push-pull driver IC capable of handling DC loads up to 1A per channel. This device is designed for applications such as driving inductive loads like solenoids, relays, and stepper motors, as well as switching power transistors and buffering low-level logic signals.

Key electrical specifications include a maximum supply voltage of 36V for both the output drive and logic supplies. The device accepts standard TTL and DTL logic levels for its four inputs and two enable pins. Each enable pin controls two channels, forcing the corresponding outputs to a TRI-STATE condition when disabled.

The LM18293N is housed in a special 16-pin power DIP package. This package features four center pins tied together to form a die paddle, enhancing heat sinking capabilities compared to standard DIP packages. The operating temperature range is -40°C to 125°C, making it suitable for a variety of environmental conditions.

This driver is a pin-for-pin replacement for the L293B and includes internal thermal overload protection for enhanced reliability. Its design allows for reduced power dissipation by enabling the use of a lower voltage for the logic supply.