LT1785 datasheet(2/24 Pages) LINER

Part #	LT1785

Description	Complete Isolated RS485/RS422 關Module

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTM2881

2

2881fe

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VCC to GND .................................................. –0.3V to 6V

VCC2 to GND2............................................... –0.3V to 6V

VL to GND .................................................... –0.3V to 6V

Interface Voltages

(A, B, Y, Z) to GND2........................ VCC2 –15V to 15V

(A-B) with Terminator Enabled..............................±6V

Signal Voltages ON, RO, DI, DE,

RE, TE, DOUT to GND......................... –0.3V to VL +0.3V

Signal Voltages SLO,

DIN to GND2....................................–0.3V to VCC2 +0.3V

Operating Temperature Range

LTM2881C ............................................... 0°C to 70°C

LTM2881I.............................................–40°C to 85°C

LTM2881H ......................................... –40°C to 105°C

LTM2881MP ...................................... –55°C to 105°C

Maximum Internal Operating Temperature ....... 125°C

Storage Temperature Range .................. –55°C to 125°C

Peak Package Body Reflow Temperature .............. 245°C

(Note 1)

BGA PACKAGE

32-PIN (15mm

11.25mm

3.42mm)

TJMAX = 125°C,

JA = 32.2°C/W,

JCTOP = 27.2°C/W,

JCBOTTOM = 20.9°C/W,

JB = 26.4°C/W,

WEIGHT = 1g

LGA PACKAGE

32-PIN (15mm

11.25mm

2.8mm)

TJMAX = 125°C,

JA = 31.1°C/W,

JCTOP = 27.3°C/W,

JCBOTTOM = 19.5°C/W,

JB = 25.1°C/W,

WEIGHT = 1g

TOP VIEW

SLO

DIN

RO VL ON

RE

DE

DI

TE

DOUT

1

A

B

C

D

E

F

G

H

J

K

L

2345678

VCC2

Z

GND2

GND

BA

Y

VCC

ORDER INFORMATION

LEAD FREE FINISH

TRAY

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTM2881CY-3#PBF

LTM2881Y-3

32-Pin (15mm

× 11.25mm × 3.42mm) BGA 0°C to 70°C

LTM2881IY-3#PBF

LTM2881Y-3

32-Pin (15mm

× 11.25mm × 3.42mm) BGA –40°C to 85°C

LTM2881HY-3#PBF

LTM2881Y-3

32-Pin (15mm

× 11.25mm × 3.42mm) BGA –40°C to 105°C

LTM2881MPY-3#PBF

LTM2881Y-3

32-Pin (15mm

× 11.25mm × 3.42mm) BGA –55°C to 105°C

LTM2881CY-5#PBF

LTM2881Y-5

32-Pin (15mm

× 11.25mm × 3.42mm) BGA 0°C to 70°C

LTM2881IY-5#PBF

LTM2881Y-5

32-Pin (15mm

× 11.25mm × 3.42mm) BGA –40°C to 85°C

LTM2881HY-5#PBF

LTM2881Y-5

32-Pin (15mm

× 11.25mm × 3.42mm) BGA –40°C to 105°C

LTM2881MPY-5#PBF

LTM2881Y-5

32-Pin (15mm

× 11.25mm × 3.42mm) BGA –55°C to 105°C

LTM2881CV-3#PBF

LTM2881V-3

32-Pin (15mm

× 11.25mm × 2.8mm) LGA

0°C to 70°C

LTM2881IV-3#PBF

LTM2881V-3

32-Pin (15mm

× 11.25mm × 2.8mm) LGA

–40°C to 85°C

LTM2881HV-3#PBF

LTM2881V-3

32-Pin (15mm

× 11.25mm × 2.8mm) LGA

–40°C to 105°C

LTM2881CV-5#PBF

LTM2881V-5

32-Pin (15mm

× 11.25mm × 2.8mm) LGA

0°C to 70°C

LTM2881IV-5#PBF

LTM2881V-5

32-Pin (15mm

× 11.25mm × 2.8mm) LGA

–40°C to 85°C

LTM2881HV-5#PBF

LTM2881V-5

32-Pin (15mm

× 11.25mm × 2.8mm) LGA

–40°C to 105°C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

This product is only offered in trays. For more information go to: http://www.linear.com/packaging/

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