MC33198 データシートの表示（PDF） - Motorola => Freescale

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MC33198

Automotive High Side TMOS Driver

Motorola => Freescale 

MOTOROLA

SEMICONDUCTOR

MC33198

Automotive High Side

TMOS Driver

The MC33198D is a high side TMOS driver, dedicated for automotive appli-

cations. 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

MOSFET. The device has CMOS compatible input control, charge pump to

drive the MOSFET gate, fault detection circuitry based on programmable

Vds monitoring to detect shorted load. 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 in both on and off MOSFET state.

The device uses few external components and offers an economical solution

to large current high side switch. It also has PWM capability up to 1kHz.

•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 Over MOSFET Current 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

•Over Voltage and Under Voltage Shutdown

HIGH SIDE

TMOS DRIVER

SILICON MONOLITHIC

INTEGRATED CIRCUIT

PIN ASSIGNMENT

SRC 1

DRN 2

GND 3

GATE 4

8 TIMER

7 INPUT

6 STATUS

5 VCC

ORDERING INFORMATION

Device

MC33198D

Temperature

Range

- 40°C to+125°C

Package

SO8

MCU

INPUT

5V

Rpu

STATUS

Block Diagram and Typical Application

VCC

Over

Volt

Detect

Bias

Supply

Ref

Charge

Pump

Under

Volt

Detect

Power

ON

100µA

+

C1

-

LOGIC

10µA

-

C2

+

Vcc

+

C3

-

10µA

80µA

15V

DRN Rdrn

GATE

SRC Rsrc

VBAT

POWER

TMOS

LOAD

GND

C timer

TIMER

© Motorola,Inc 1999

Rev 1.1

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