MC33285 Datasheet, PDF (1/5 Pages) Freescale Semiconductor, Inc – Automotive Dual High Side TMOS Driver

M_SO_ET_MOR_ICO_OLA_{NDUCTOFRreescale Semiconductor, IncM. C33285}
TECHNICAL DATA
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Automotive Dual High
Side TMOS Driver
HIGH SIDE
TMOS DRIVER
SILICON MONOLITHIC
INTEGRATED CIRCUIT
The MC33285 is a dual high side TMOS driver designed for use in
the harsh automotive switching applications.
The purpose of the MC33285 is to drive two power n-channel FETs in
a high side application with an inductive load. The application in an
automotive environment requires the capability of withstanding high
voltages and load dump transients. The MC33285 is able to withstand
reverse battery conditions at selected pins.
It protects the n-channel power FET on OUT1 under over current
condition. This device has one input to control both stages on or off.
•Temperature Range from -40°C to +125°C
•PWM Capability
•Power TMOS # 1 Over-Current and Short-Circuit Protection
•Voltage Range 7V to 40V
•Extended Temperature Range from -40°C to 125°C
•Load Dump Protected
•Over Voltage Detection and Activation of OUT2 during Overvoltage
•Single Input Control for both Output Stages
•Capacitor Value of 100nF Connected to Pin CP
•Analog Input Control Measurement Detection
•OUT1 LOAD leakage measurement detection
PIN CONNECTIONS
SRC 1
OUT1 2
DRN 3
OUT2 ₄
8 IN
7 GND
6 V_CC
5 CP
ORDERING INFORMATION
Device
MC33285D
Temperature
Range
-40°C to +125°C
Package
SO8
Block Diagram And Typical Application
V_IGN
VCC
C_CP
CP
Kl.30
IN
GND
V_REF
THRIN2
+
R
S
-
t_LDdet
Load Dump
Detection
t_OUT2ect
OUT2 Activation
+
Time
Oscillator
and
Divider
RQ
S
-
Charge
pump
I_ON2
I_OUTN2
THRIN1
+
-
RQ
S
OC Detection
t_OCdet
start t_OCdet
I_ON1
Band-
gap
Rthr
V_OUT2-V _DRN> V _TH2
V OUT1-V SRC > V TH1
I_OUTN1
+
-
OCPC
DRN
OUT2
OUT1
SRC
For More Information On This Product,
Go to: www.freescale.com
This document contains information on a new product under development. Motorola reserves the © Motorola,Inc 1999
right to change or discontinue this product without notice.
M
Rev 2.4