LX8580

PRODUCT DA T ABOOK 1996/1997

2

Copyright © 1999

Rev. 1.0 11/99

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Power Dissipation ...................................................................................... Internally Limited

V

V

Operating Junction Temperature

Plastic (P Package) ................................................................................................ 150°C

Storage Temperature Range ...................................................................... -65°C to 150°C

Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C

PACKAGE PIN OUTS

Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect

to Ground. Currents are positive into, negative out of the specified terminal.

BLOCK DIAGRAM

Current

Limiting

Amplifier

Thermal Overload

Voltage

Regulation

Amplifier

Power

OUTPUT

SENSE

ADJUST

V

REF

Control

V

CTRL

V

PWR

V

PWR

V

CTRL

OUTPUT

ADJUST

SENSE

P PACKAGE

(Top View)

1

5

TAB IS OUTPUT

DD PACKAGE

(Top View)

V

PWR

V

CTRL

OUTPUT

ADJUST

SENSE

3

2

1

4

5

TAB IS OUTPUT

P PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

θθθθθ

JT

3.0°C/W

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

60°C/W

DD PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

θθθθθ

JT

3.0°C/W

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

60°C/W

Junction Temperature Calculation: T

The

θ

All of the above assume no ambient airflow.

THERMAL DATA