1999 June 10

33

Philips Semiconductors

Preliminary specification

5 V spindle & VCM driver combo

TDA5345HT

QUICK REFERENCE DATA

ORDERING INFORMATION

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

Note to the limiting values:

1. Stress beyond these levels may cause permanent damage to the device. This is a stress rating only and functional

operation of the device under this condition is not implied.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply voltage

+5 V supply voltage

4.5

5.0

5.5

V

Voice coil motor driver

maximum VCM output current

−

400

mA

VCM power MOS total on

resistance

−−

1.5

Ω

Spindle motor driver

maximum spindle output current

start-up

-

620

mA

spindle output current

Brake

-

-

1.5

A

spindle power MOS total on

resistance

-

-

1.5

Ω

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA5345HT

TQFP64

plastic low profile quad flat package; 64 leads;

body 10 x 10 x 1.2 mm

SOT 357BB6

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

+5 V supplies

indefinite time period

- 0.3

5.5

V

+5 V supplies

see note1

-0.3

7

V

VCM drive output voltage

Inductance connected to

VCM+ and VCM-

−0.5

V

VCM drive output peak

current

peak < 0.5 s

1.0

A

spindle drive output voltage

Inductance connected to

SpinMotA, B & C.

-0.5

V

spindle drive output peak

current

peak < 0.5 s

2.0

A

other pins

I < 1 mA

-0.5

V

total Power dissipation

1.1

W

IC storage temperature

−55

+125

°C

junction temperature

−

+140

°C