Dual High-Side Switch

The 33289 is a dual high-side switch (DHSS) dedicated for use in automotive and industrial applications. It is designed to drive typical inductive loads such as solenoid valves.

This device consists of two independent 40 mΩ RDSON MOSFET channels plus corresponding control circuitry in a surface mount package. The 33289 can be interfaced directly to a microcontroller for input control and monitoring of diagnostic output.

Each switch offers independent protection and diagnosis during short circuit, overvoltage, and undervoltage conditions, as well as an overtemperature shutdown feature. A logic low on the Open Load Detect Enable pin (OLDE) minimizes bias current drain by disabling the open load circuitry current source. The device also has a very low quiescent current in Standby mode.

Features

• Designed to Drive Inductive Loads

• Operating Voltage Range from 6.0 V to 27 V

• Maximum Breakdown Voltage Greater Than 40 V

• Surface Mount Package

• 40 mΩ RDS(ON) at 25°C

• Overtemperature Protection with Hysteresis

• Short Circuit Protection

• Undervoltage Shutdown

• Overvoltage Shutdown

• Open Load Detection in Off-State

• Independent Diagnostic Output

• ESD Protection 2.0 kV with Standby Current > 5.0 µA at VBAT Below 14 V