Philips Semiconductors

Product specification

TDA5146T

Brushless DC motor drive circuit

2

1994 May 18

FEATURES

– 2 A output current (Typical)

– Built–in current limiter

APPLICATIONS

General purpose spindle driver (e.g., HDD, tape driver)

GENERAL DESCRIPTION

The TDA5146T is a bipolar integrated circuit used to drive brushless DC motors in full–wave mode. The device senses the rotor position using

an EMF –sensing technique and is ideally suited as a drive circuit for a hard disk drive motor or tape drive.

QUICK REFERENCE DATA

Measured over full voltage and temperature ranges

Symbol

Parameter

Min.

Typ.

Max.

Unit

Supply voltage range (Note 1)

4

–

18

V

Vsup

Supply for the FET driver voltage range

4

–

18

V

Input voltage to the output driver stages (see Fig. 1)

1.7

–

16

V

–

0.9

1.05

V

Current limiting

1.80

2.0

2.5

A

NOTES:

1. An unstabilized supply can be used

ORDERING AND PACKAGE INFORMATION

Type n mber

Package

Type number

Name

Description

Version

TDA5146T

SO28

plastic small outline package; 28 leads; body width 7.5 mm

SOT136-1