Freescale Semiconductor
Technical Data
Document Number: MC33198
Rev. 2.0, 11/2006
Automotive High-Side TMOS
Driver
The MC33198 is a high-side TMOS driver, dedicated to automotive
applications. It is used in conjunction with an external power MOSFET
for high-side drive applications. The device can drive and protect a
large variety of MOSFETs. The device has a CMOS compatible input
control, charge pump to drive the MOSFET gate, and fault detection
circuitry based on programmable V
DS
monitoring to detect shorted
loads. It also includes a programmable timer function to eliminate
undesired switch off due to in rush currents, and a status pin which
reports the output status of both on and off MOSFET states. The device
uses few external components and offers an economical solution to
large current high side switches. It also has PWM capability up to 1kHz.
33198
HIGH-SIDE TMOS DRIVER
Features
• Designed for Automotive High Side Driver Application
• Works with a Wide Variety of N-Channel Power MOSFETs
ORDERING INFORMATION
• PWM Capability
• On Board Charge Pump Capable of Charging 25nF in less than 1ms
Temperature
Device
Package
with No External Components Required
Range (T
A
)
• Drive Inductive Load with No External Clamp Circuitry Required
MC33198D
• CMOS Logic Compatible Input Control
-40°C to 125°C
8 SOICN
MCZ33198EF/R2
• TMOS Over Current and Short Circuit Protection
• Fault Output to Report an MOSFET Overcurrent Condition
• Output Status Available when MOSFET is On or Off
• Extended Temperature Range from -40°C to 125°C
• Protected Against Automotive Transients with few External Components
• Overvoltage and Undervoltage Shutdown
• Pb-Free Packaging Designated by Suffix Code EF
D SUFFIX
EF SUFFIX (PB-FREE)
98ASB42564B
8-PIN SOICN
VBAT
33198
VCC
DRN
INPUT
MCU
5.0V
STATUS
GATE
SRC
LOAD
TIMER
GND
Figure 1. 33198 Simplified Application Diagram
Freescale Semiconductor, Inc. reserves the right to change the detail specifications,
as may be required, to permit improvements in the design of its products.
© Freescale Semiconductor, Inc., 2007. All rights reserved.
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
