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XC33487
Preliminary
Automotive Dual
High Side Driver
Simplified Application Schematic
MCU
OUT-2
OUT-1
VBAT
IN-1
IN-2
ST2
Cur R1
Gnd
5V
A/D
I/O
I/O
I/O
Load
switch
+
-
10k
5V
Flasher Lite
PIN CONNECTIONS
1
2
3
5
4
6
7
8
9
10
20
11
12
13
14
15
16
17
18
19
Vbat
Vbat
Out1
Out1
Vbat
Vbat
Cur R1
In 1
St1
Vbatc
Vbat
Vbat
Out2
Out2
Vbat
Vbat
Cur R2
In 2
St2
Gnd
ST1
I/O
A/D
Cur R2
21W
21W
21W
21W
10k
1k
1k
DW SUFFIX
SO20WB Package
CASE 751D-05
Semiconductor Technical Data
MOTOROLA
Order Number: XC33487/D
Rev. 1.3, 06/2001
This document contains information on a new product under development. Motorola reserves the
right to change or discontinue this product without notice.
Motorola, Inc., 2001. All rights reserved.
TM
This device called “Flasher Lite” is a dual high side power switch
dedicated for automotive applications. In comparison with mechanical
relays, this device offers higher reliability as well as protection and
diagnostic features.
The device consists of two independent 25m
Rdson switches in a
surface mount package. It can be directly interfaced with a microcontroller
for control and diagnostic functions and includes a current recopy function.
The device is fully protected against overcurrents, short-circuits and
incorporates an overtemperature shutdown. It can be directly and
continuously supplied by the battery and offers a very low quiescent current
in standby mode.
Designed for Automotive Applications
Junction Temperature Range from - 40
°
C to 150
°
C
Operating Voltage Range from 8V to 40V
Reverse Battery protected up to -14V with no external components
Surface Mount Package, Thermally Enhanced
25mOhms max Rdson per Channel at 25
°
C
Independant Status Lines, one per channel
Overtemperature Protection with Hysteresis
Open Load Detection in On-State
Short-Circuit Protection
Loss of gnd, loss of Vbat protection
Independant Current Recopy, one per channel
Under Voltage Shutdown
ESD Protection 2kV
Current Limitation greater than 25A to Allow load Inrush Current
Standby Current less than 1uA at V
bat
=14V and ambiant temperature