The CS1112 is a Power Output Driver. The IC incorporates four protected DMOS low–side drivers designed to drive inductive and resistive loads in an automotive environment. The outputs are controlled by an 8–bit serial peripheral interface (SPI) or its associated parallel input. Each output contains overcurrent protection, open load detection, and inductive flyback clamps. The device is overvoltage protected. Overcurrent and open load faults are reported over the SPI port, and at the STATUS lead.
The CS1112 is a quad power output driver IC incorporating four protected DMOS low-side drivers designed to drive inductive and resistive loads in an automotive environment. Each output includes overcurrent protection, open load detection, and inductive flyback clamps, with status reporting via an SPI port and a dedicated STATUS lead.
The device supports control via an 8-bit Serial Peripheral Interface (SPI) or parallel inputs. It features comprehensive protection mechanisms including overvoltage, undervoltage, and fault reporting for shorts to Vpwr, GND, or open loads. The IC operates with a 4.0 MHz serial input bus and includes internal flyback clamps and power-on reset functionality.
| Number of Drivers | 4 |
|---|---|
| Driver Type | Protected DMOS |
| Serial Input Bus Frequency | 4.0 MHz |
| Output DC Voltage (Max) | 46 V |
| Operating Junction Temperature | -40 to 150 °C |
| ESD Capability (Human Body Model) | 1.5 kV |
| Package Type | SO-24L |
Each output independently detects shorts to Vpwr, open load/short to ground, and includes overcurrent protection and inductive flyback clamps.
The device can be controlled using an 8-bit serial peripheral interface (SPI) or via parallel inputs (IN0, IN1, IN2, IN3).
The open drain STATUS lead reports if a fault such as a short to Vpwr, GND, or an open load has occurred at one or more outputs.