Freescale Semiconductor
Advance Information
Document Number: MC33288
Rev 6.0, 5/2006
Solid State Relay for
Automotive Flasher
Applications
This device is a Dual High-Side Power Switch dedicated for
automotive flasher applications. In comparison with mechanical
solutions, this device offers higher reliability as well as protection and
diagnostic features.
The device consists of two 25 mΩ Rdson fully protected high side
switches, in a surface mount power package. It interfaces directly
with a microcontroller and includes a current recopy function in order
to allow the detection of a failed lamp in the application.
Features
• Junction Temperature Range from -40°C to 150°C
• Operating Voltage Range from 8.0 V to 35 V
• Maximum Breakdown Voltage greater than 40 V
• 25 mΩ R
DS(ON)
per Channel at 25°C
• 8.0 Amps Nominal Current per Channel
• 1.2 W Warning Lamp Driver
• Overtemperature Protection with Hysteresis
• Open Load Detection in ON State
• Current Recopy to Monitor Lamp Output Current
33288
SOLID STATE RELAY
DH SUFFIX
98ASH70273A
20-LEAD HSOP
ORDERING INFORMATION
Device
MC33288DDH/R2
Temperature
Range (T
A
)
-40°C to 125°C
Package
20 HSOP
• Standby Current < 10
µA
at V
BAT
< 14 V
Simplified Application Diagram
5.0 V
VPWR
33288
VBAT
ST
OUT-1
IN-1
WLP
IN-2
Cur R
OUT-2
GND
21 W
21 W
5W
21 W
5W
MCU
1.2 W
21 W
21 W
5W
21 W
5W
Figure 1. 33288 Simplified Internal Block 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.
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