Document Number: MC33289

Rev. 4.0, 6/2006

Freescale Semiconductor

Advance Information

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

© Freescale Semiconductor, Inc., 2006. All rights reserved.

Dual High-Side Switch 40 m

Ω

The 33289 is a Dual High Side Switch (DHSS) dedicated for use

in automotive applications. It is designed to drive typical inductive

loads such as solenoid valves.

This device consists of two independent 40 m

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

overcurrent, 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 Automotive Inductive loads

• Operating Voltage Range from 6.0 V to 27 V

• Maximum Breakdown Voltage greater than 40 V

•40 m

• Overtemperature Protection with Hysteresis

• Overcurrent protection

• Under Voltage Shutdown

• Over Voltage Shutdown

• Open Load Detection in Off-State

• Independent Diagnostic Output

• ESD Protection 2.0 kV

• Standby Current less than 5.0

Figure 1. 33289 Simplified Application Diagram

ORDERING INFORMATION

Device

Temperature

Package

MC33289DW/R2

-40°C to 125°C

20 SOICW

DW SUFFIX)

98ASB42343B

20-PIN SOICW

DUAL HIGH-SIDE SWITCH

33289

VPWR

33289

5.0 V

MCU

VBAT

OUT1

OUT2

GND

IN1

IN2

ST1

OLDE

ST2