Document Number: MC33289
Rev. 4.0, 6/2006
Freescale Semiconductor
Advance Information
Dual High-Side Switch 40 mΩ
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.
33289
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.
DUAL HIGH-SIDE SWITCH
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
DW SUFFIX)
98ASB42343B
20-PIN SOICW
• Designed to drive Automotive Inductive loads
• Operating Voltage Range from 6.0 V to 27 V
• Maximum Breakdown Voltage greater than 40 V
• 40 mΩ RDSON at 25°C
• Overtemperature Protection with Hysteresis
• Overcurrent protection
• Under Voltage Shutdown
ORDERING INFORMATION
Temperature
Device
Package
Range (T )
A
• Over Voltage Shutdown
• Open Load Detection in Off-State
• Independent Diagnostic Output
• ESD Protection 2.0 kV
MC33289DW/R2
-40°C to 125°C
20 SOICW
• Standby Current less than 5.0 µA at VBAT below 14 V
V
PWR
5.0 V
33289
VBAT
OUT1
OUT2
ST1
ST2
IN1
MCU
IN2
GND
OLDE
Figure 1. 33289 Simplified Application Diagram
* 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.