1A/50V Octal Low Side Power Driver With Serial Bus Control and Fault Protection

The HIP0045 is a logic controlled, eight channel Octal Serial Power Low Side Driver. The serial peripheral interface (SPI) utilized by the HIP0045 is a serial synchronous bus compatible with Intersil CDP68HC05, or equivalent, microcomputers. As shown in the Block Diagram for the HIP0045, each of the open drain MOS Output Drivers have individual protection for overvoltage and over-current. Each output channel has separate output latch control with fault unlatch and diagnostic or status feedback. Under normal ON conditions, each output driver is in a low voltage, high current state of saturated turn-on.

Features

• Octal NDMOS Output Drivers in a High Voltage Power BiMOS Process

• Over-Stress Protection - Each Output:

- Over-Current Protection . . . . . . . . . . . . . . . . . . . 1A Min

- Over-Voltage Clamp Protection . . . . . . . . . . . . 50V Typ

- Thermal Shutdown Protection (2 Channels)

• Open-Load Detection

• Power BiMOS Output Configuration

- Current Latch-Off Protection for 6 Channels; 2 with External Drive Input and ORed with SPI Bus Control

- 2 Channels Configured for Lamp Drivers with Current Limiting and Over-Temperature Latch-Off

• High Speed CMOS Logic Control

- SPI Bus Controlled Interface

- Individual Output Latch

- Individual Fault Unlatch and Feedback

- Common Reset Line

• Low Quiescent Current . . . . . . . . . . . . . . . . . . . 5mA Max

• Ambient Operating Temp. Range . . . . . . . -40°C to 125°C

Applications

• Automotive and Industrial Systems

• Solenoids, Relays and Lamp Drivers

• Logic and µP Controlled Drivers

• Robotic Controls