TD340 Datasheet

IC型號：
TD340
PDF描述：
H-BRIDGE QUAD POWER MOSFET DRIVER FOR DC MOTOR CONTROL
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PDF頁數(shù)：
21頁
芯片廠家：
STMICROELECTRONICS

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TD340

H-BRIDGE QUAD POWER MOSFET DRIVER

FOR DC MOTOR CONTROL

PRELIMINARY DATA

QUAD N-CHANNEL MOSFET DRIVE

INTEGRATED CHARGE PUMP FOR HIGH

SIDE MOSFET DRIVING

VERY LOW GROUND EMI NOISE

MOTOR SPEED AND DIRECTION CON-

TROL (LOW SIDE PWM)

INTERNAL OR EXTERNAL PWM SOURCE

25kHz SWITCHING FREQUENCY ABILITY

SYNCHRONOUS HIGH SIDE RECTIFICA-

TION

REVERSED BATTERY ACTIVE PROTEC-

TION ABILITY

INTEGRATED 5V POWER SUPPLY FOR

MICROCONTROLLER

INTEGRATED SECURITY CIRCUITS:

UVLO, OVLO, WATCHDOG

60V MAX RATING

SO20

(Plastic Micropackage)

ORDER CODE

Package

Part Number

TD340ID

Temperature Range

-40擄C, +125擄C

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DESCRIPTION

The TD340 integrated circuit allows N-Channel

Power Mosfets driving in a full H-bridge

configuration and is best suited for DC Motor

Control Applications. The four drivers outputs are

designed to allow 25kHz MOSFET switching.

The speed and direction of the motor are to be set

by two pins. Voltage across the motor is controlled

by low side Pulse Width Modulation (PWM). This

PWM feature can be made internally when the

input pin is connected to an analog signal, or it can

be given directly from a digital source.

An internal charge pump allows proper upper

MOS driving for full static operation (100% PWM).

TD340 achieves very low EMI noise thanks to its

balanced charge pump structure and its drivers

moderate slew rate.

To avoid excessive heating due to free wheeling,

appropriate synchronous rectification is achieved

on the corresponding High Side MOSFET.

Moreover, TD340 integrates a 5V voltage

regulator suitable as a power supply output for the

microcontroller, a Reset circuit and a Watchdog

circuit.

Security functions disable the TD340 (MOS off)

when abnormal conditions occur like overvoltage,

undervoltage or CPU loss of control (watchdog).

TD340 withstands transients as met in automotive

field without special protection devices thanks to

its 60V BCD technology.

May 2000

D =

Small Outline Package (SO) - also available in Tape & Reel (DT)

PIN CONNECTIONS (top view)

VBATT

VOUT

RESET

CWD

STBY

TEMP

IN1

IN2

OSC

CB1

CB2

GND

1/21

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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描述

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