lx5211 Microsemi Corporation, lx5211 Datasheet

lx5211

Manufacturer Part Number

lx5211

Description

9-line Low Capacitance, ??power Scsi Terminator

Manufacturer

Microsemi Corporation

Datasheet

1.LX5211.pdf (4 pages)

Current page: 1 of 4
Download datasheet (110Kb)

Rev. 1.1

H E

The LX5211 is a nine-line active terminator

for the SCSI parallel bus. The SCSI standard

recommends active termination at both ends

of the SCSI bus.

quires a meager 500nA of supply current

while offering only 2.5pF of output capaci-

tance. To enter this low-power mode, the

disconnect pin can be left open (floating)

or driven low, thereby disconnecting the

terminating resistors and placing the internal

low dropout regulator into low-power

mode. In disconnect mode, each termina-

tion line presents a high impedance to the

SCSI bus with the overall effect being to

preserve high signal integrity and yield

subsequent reliable, error-free communica-

tions.

IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.

During disconnect mode, the LX5211 re-

During normal operation, the LX5211

5/97

N F I N I T E

E C E I V I N G

11861 W

O W E R

ESTERN

AV E F O R M

D E S C R I P T I O N

O F

LX5211

I N

Note: All surface-mount packages are available in Tape & Reel.

VENUE

0 to 70

P A C K A G E O R D E R I N F O R M A T I O N

Append the letter "T" to part number. (i.e. LX5211CDPT)

- 20MH

N N O V A T I O N

(°C)

I N I T Y

, G

Receiver

consumes only 600µA of current, which is

the lowest enabled supply current of any

terminator available on the market today.

Linfinity's proprietary BiCMOS low dropout

regulator architecture enables this unique

and very efficient operating characteristic.

trimmed channel output current specified to

a 5% tolerance. The maximum value of the

output current is trimmed as closely as

possible to the SCSI standard maximum

specification to give the highest possible

noise margin for fast SCSI operation. And

the LX5211 sinks up to 30mA of current,

making it compatible with today's fast active

negation drivers.

placement for a variety of industry products,

such as the UCC5606.

ARDEN

P R O D U C T H I G H L I G H T

The LX5211 also offers a precisely

The LX5211 is a stable, pin-for-pin re-

PWP

LX5268

LX5211CPWP

1 Meter, AWG 28

Plastic TSSOP

24-pin, Power

ROVE

I C R O E L E C T R O N I C S

, CA. 92841, 714-898-8121, F

LX5268

9-L

INE

Driver

R O D U C T I O N

Plastic SOIC

16-pin, Power

LX5211CDP

R I V I N G

LX5211

APACITANCE

N C

AV E F O R M

: 714-893-2570

2.5pF OUTPUT CAPACITANCE DURING

DISCONNECT

500nA SUPPLY CURRENT IN DISCONNECT

MODE

600µA SUPPLY CURRENT DURING NORMAL

OPERATION

30mA SINK CURRENT FOR ACTIVE

NEGATION

LOGIC COMMAND DISCONNECTS ALL

TERMINATION LINES

CURRENT LIMIT AND THERMAL PROTECTION

COMPATIBLE WITH SCSI 1, 2, 3, AND ULTRA

SCSI STANDARDS

HOT SWAP COMPATIBLE

CONSULT FACTORY FOR APPLICATION TEST

REPORT: 5211TR

EVALUATION BOARD AVAILABLE:

REQUEST LXE9005 EVALUATION KIT

, µP

K E Y F E A T U R E S

OWER

Discussion On Applying

Single-Ended SCSI Bus"

SCSI, Request Linfinity

A T A

"Understanding The

Application Note:

- 20MH

For An In-Depth

SCSI T

LIN D

NOTE:

LX5211

H E E T

ERMINATOR

O C

#: 5211

Related parts for lx5211

lx5211 Summary of contents

Page 1

... Plastic TSSOP T (°C) PWP DP A 24-pin, Power LX5211CPWP Note: All surface-mount packages are available in Tape & Reel. Append the letter "T" to part number. (i.e. LX5211CDPT CA. 92841, 714-898-8121, F VENUE ARDEN ...

Page 2

... LX5211 TermPwr Voltage ................................................................................................. +7V Signal Line Voltage ................................................................................... 0V to +7V Regulator Output Current ................................................................................... 0.4A Operating Junction Temperature Plastic (PWP, DP Packages) ........................................................................ 150°C Storage Temperature Range .............................................................. -65°C to 150°C Lead Temperature (Soldering, 10 seconds) .................................................... 300° ...

Page 3

... REG I = -50mA REG REG DISCONNECT = 0V LX5211 ERMINATOR (Note 2) Recommended Operating Conditions Min. Typ. Max TERM 2.2 0 125 70°C. TermPwr = 4.75V, A LX5211 Min. Typ. Max. 0.6 1.2 194 210 0.5 104 110 116 100 110 120 2.7 2.9 -20.3 -21.8 -23 -19.0 -21.8 -23 -19.5 -21.8 -23 -18.0 -21.8 -23 10 400 2 ...

Page 4

... REGOUT 2.2µF Note: Add third LX5211 for 16-bit SCSI PRODUCTION DATA - Information contained in this document is proprietary to Lin Finity, and is current as of publication date. This document may not be modified in any way without the express written consent of LinFinity. Product processing does not necessarily include testing of all parameters ...

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