Freescale Semiconductor, Inc. reserves the right to change the detail specifications,

as may be required, to permit improvements in the design of its products.

Document Number: MC33198

Rev. 2.0, 11/2006

Freescale Semiconductor

Technical Data

© Freescale Semiconductor, Inc., 2007. All rights reserved.

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

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.

Features

• Designed for Automotive High Side Driver Application

• Works with a Wide Variety of N-Channel Power MOSFETs

• PWM Capability

• On Board Charge Pump Capable of Charging 25nF in less than 1ms

with No External Components Required

• Drive Inductive Load with No External Clamp Circuitry Required

• CMOS Logic Compatible Input Control

• 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

Figure 1. 33198 Simplified Application Diagram

HIGH-SIDE TMOS DRIVER

D SUFFIX

EF SUFFIX (PB-FREE)

98ASB42564B

8-PIN SOICN

33198

ORDERING INFORMATION

Device

Temperature

Package

MC33198D

-40°C to 125°C

8 SOICN

MCZ33198EF/R2

33198

MCU

VBAT

5.0V

STATUS

INPUT

GND

TIMER

SRC

GATE

DRN

VCC

LOAD