The ULQ2470L and ULQ2470M are bi-directional bus driver / receivers designed specifically for automotive applications. They are intended to be used as an interface between a microprocessor and a single-wire multiplex data bus operating from the A-line or battery. Each device consists of a wave-shaped open-collector driver, a pull-up resistor, and an input filter and buffer.

FEATURES AND BENEFITS

■ Over-Voltage Protection

■ Diode Isolation from both Ground and Supply

■ Reverse-Battery Protection

■ Low Supply Current

■ High Noise Immunity

■ Output Current Limiting

■ Low Standby Current—24 mA Max.

■ Open-Ground Protection

■ Under-Voltage Lockout