EEWORLDEEWORLDEEWORLD

Part Number

Search

LTM2881IY-5#PBF

Description
IC txrx rs485/rs422 32bga
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size462KB,6 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTM2881IY-5#PBF Overview

IC txrx rs485/rs422 32bga

LTM2881IY-5#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
Parts packaging codeBGA
package instructionBGA, BGA32,8X11,50
Contacts32
Manufacturer packaging codeBGA
Reach Compliance Codecompliant
ECCN codeEAR99
Differential outputYES
Number of drives1
Input propertiesDIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-485-A; TIA-485-A; EIA-422
JESD-30 codeR-PBGA-B32
JESD-609 codee1
length15 mm
Humidity sensitivity level3
Number of functions1
Number of terminals32
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing1.5 V
Maximum output low current0.004 A
Package body materialPLASTIC/EPOXY
encapsulated codeBGA
Encapsulate equivalent codeBGA32,8X11,50
Package shapeRECTANGULAR
Package formGRID ARRAY
Peak Reflow Temperature (Celsius)250
power supply5 V
Certification statusNot Qualified
Maximum receive delay140 ns
Number of receiver bits1
Maximum seat height3.62 mm
Maximum slew rate19 mA
Maximum supply voltage5.5 V
Minimum supply voltage1.62 V
Nominal supply voltage3.3 V
Supply voltage 1-max5.5 V
Mains voltage 1-minute4.5 V
Supply voltage1-Nom5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceTin/Silver/Copper (Sn96.5Ag3.0Cu0.5)
Terminal formBALL
Terminal pitch1.27 mm
Terminal locationBOTTOM
Maximum time at peak reflow temperature40
maximum transmission delay85 ns
width11.25 mm
Base Number Matches1
DEMO MANUAL DC1746A
LTM2881:
Isolated RS485/RS422
µModule Transceiver + Power
DESCRIPTION
Demonstration circuit 1746A is an isolated RS485/RS422
μModule
®
transceiver + power featuring the LTM
®
2881.
The demo circuit is a 2500V
RMS
galvanically isolated
RS485/RS422 transceiver interface. The demo circuit
features an EMI optimized circuit configuration and printed
circuit board layout. All components are integrated into
the μModule transceiver. The demo circuit operates from
a single external supply on V
CC
. The part generates the
output voltage V
CC2
and communicates all necessary
signaling across the isolation barrier using LTC’s isolator
μModule technology.
Design files for this circuit board are available at
http://www.linear.com/demo
L,
LT, LTC, LTM, μModule, Linear Technology and the Linear logo are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
PERFORMANCE SUMMARY
SYMBOL
V
CC
V
CC2
f
MAX
V
IORM
PARAMETER
Input Supply Range
Output Voltage
Maximum Data rate
Maximum Working Insulation Voltage
Common Mode Transient Immunity
(T
A
= 25°C)
CONDITIONS
LTM2881-5
LTM2881-3
I
LOAD
= 0mA to 100mA, DE = 0V
SLO
= V
CC2
GND to GND2
MIN
4.5
3.0
4.7
20
560
400
30
TYP
5
3
5
MAX
5.5
3.6
UNITS
V
V
V
Mbps
V
DC
V
RMS
kV/μs
OPERATING PRINCIPLES
The LTM2881 contains an isolated DC/DC converter, de-
livering power to V
CC2
at 5V from the input supply, V
CC
.
Isolation is maintained by the separation of GND and GND2
where significant operating voltages and transients can
exist without affecting the operation of the LTM2881. The
logic side ON pin enables or shuts down the LTM2881.
RS485/RS422 signaling is controlled by the logic inputs
DE, DI, TE and
RE.
Connection to the transceiver pins (A,
B, Y and Z) allows full- or half-duplex operation on the
isolated side of the demo circuit. A full-/half-duplex switch
is included on the demo circuit to ease setting the system
configuration. The
SLO
pin configures the slew rate of the
driver output pins Y and Z.
Data is transmitted out the driver pins Y and Z from the
input DI with DE set on. Data is received through the dif-
ference in A and B to the output RO with
RE
set on.
The demo circuit has been designed and optimized for low
RF emissions. To this end some features of the LTM2881
are not available for evaluation on the demo circuit. The
logic supply voltage, V
L
, is tied to V
CC
on the demo circuit.
All control signals are selectable by jumper programming
only, including ON,
RE,
DE, TE and
SLO.
The spare logic
channel D
IN
to D
OUT
is not available.
dc1746af
1
About ZwCreateSection return value
Intercept ZwCreateSection to block the creation of a process. Which value should NTSTATUS return to avoid popping up a message? If STATUS_ACCESS_DENIED is returned, a message "Not a valid program" wil...
风色DIY Embedded System
EEWORLD University ---- Power Design Tips 44_1: How to deal with high di/dt load transients_1
Power Design Tips 44_1: How to handle high di/dt load transients_1 : https://training.eeworld.com.cn/course/130...
zhangjianee Power technology
Phase Model and Experimental Circuit of Phase-Locked Loop
The phase mathematical model of the phase-locked loop is discussed, and a phase-locked loop experimental circuit suitable for teaching is given....
JasonYoo Analog electronics
Multisim2001 Electronic Tutorial
Download it . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
很坏 Embedded System
Collect electronic technology websites, preferably similar to eeworld
Thank you for your help, I want to learn electronic technology...
妖刀村正 Embedded System
Power supply design tutorial: Switching power supply and its technical indicators
[i=s]This post was last edited by paulhyde on 2014-9-15 03:15[/i] Power supply design tutorial....
奋斗了 Electronics Design Contest

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1825  2796  848  1331  261  37  57  18  27  6 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号