LX1662/62A, LX1663/63A

PRODUCT DA T ABOOK 1996/1997

Copyright © 1999

Rev. 1.1 11/99

2

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Supply Voltage (V

Supply Voltage (V

Output Drive Peak Current Source (500ns) ............................................................... 1.5A

Output Drive Peak Current Sink (500ns) ................................................................... 1.5A

Input Voltage (SS, INV, V

Operating Junction Temperature

Plastic (N & D Packages) ...................................................................................... 150°C

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

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

PACKAGE PIN OUTS

V

C1

TDRV

GND

BDRV

V

CC

C

T

VID4

SS

INV

V

CC_CORE

VID0

VID1

VID2

VID3

1

14

213

312

411

510

69

78

N PACKAGE — 14-Pin

LX1662/1662A (Top View)

N PACKAGE:

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

65°C/W

D PACKAGE:

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

120°C/W

Junction Temperature Calculation:

T

The

θ

All of the above assume no ambient airflow

THERMAL DATA

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. Pin

numbers refer to DIL packages only.

V

C1

TDRV

GND

BDRV

V

CC

C

T

VID4

SS

INV

V

CC_CORE

VID0

VID1

VID2

VID3

1

14

213

312

411

510

69

78

D PACKAGE — 14-Pin

LX1662/1662A (Top View)

V

C1

TDRV

GND

BDRV

V

CC

C

T

OV

PWRGD

SS

INV

V

CC_CORE

VID0

VID1

VID2

VID3

VID4

1

16

215

314

413

512

611

710

89

N PACKAGE — 16-Pin

LX1663/1663A (Top View)

V

C1

TDRV

GND

BDRV

V

CC

C

T

OV

PWRGD

SS

INV

V

CC_CORE

VID0

VID1

VID2

VID3

VID4

1

16

215

314

413

512

611

710

89

D PACKAGE — 16-Pin

LX1663/1663A (Top View)

DEVICE SELECTION GUIDE

OVP and

Current-Sense

DEVICE

Packages

Power Good

Comp. Thresh. (mV) Optimal Load

LX1662

14-pin SOIC

No

100

Pentium-class (<10A)

LX1662A

& DIP

60

Pentium II (> 10A)

LX1663

16-pin SOIC

Yes

100

Pentium-class (<10A)

LX1663A

& DIP

60

Pentium II (> 10A)