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دیتاشیت - ON Semiconductor - Wired M-BUS Slave Transceiver

شماره قطعه NCN5151
شرح مفصل Wired M-BUS Slave Transceiver
تولید کننده ON Semiconductor 
آرم ON Semiconductor 


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NCN5151 شرح
NCN5151
Wired M-BUS Slave
Transceiver with Low
Power Mode Support
Description
The NCN5151 is a single−chip integrated slave transceiver for use
in two−wire Meter Bus (M−BUS) slave devices and repeaters.
The NCN5151 reuses the NCN5150 features and adds two low
power modes: a 2−wire low power mode dedicated to System for
meter Communication and Readout for powerless meters (SCR) and a
3−wire low power mode allowing support for wireless applications.
When configured in low power mode, the transceiver will not behave
anymore as a constant current source in order to save energy.
When configured and used in M−BUS mode, the NCN5151
transceiver provides all of the functions needed to satisfy the
European Standards EN 13757−2 and EN 1434−3 describing the
physical layer requirements for M−BUS. It includes a programmable
power level of up to 6 unit loads, which are available for use in
external circuits through a 3.3 V LDO regulator.
Features
Single−chip M−BUS Transceiver
2 and 3−Wire Low Power Modes with Selection Input Pins
Integrated 3.3 V VDD LDO Regulator with Extended Peak Current
Capability of 15 mA
Supports Powering Slave Device from the Bus
Adjustable Constant Current Sink Up to 6 Unit Loads in M−Bus
Mode
Adjustable Current Limit up to 2 Unit Loads in Low Power Mode
Current budget of 0.88 mA minimum for external circuits
Low Turn−ON/OFF Levels for Low Bus Voltage Operation
Polarity Independent
Power−Fail Function (M−Bus mode)
UART Communication Speeds up to 38400 baud
Fast Startup − No External Transistor Required on STC Pin
Industrial Ambient Temperature Range of −40°C to +85°C
These are Pb-free Devices
Typical Applications
Multi−Energy Utility Meters
Water
Gas
Electricity
Heating systems
Related Standards − European Standard
EN 13757−2, EN 1434−3
For more information visit www.m-bus.com
www.onsemi.com
NQFP−20
MN SUFFIX
CASE 485E
MARKING DIAGRAMS
20
1
NCN
5151
ALYW
G
A = Assembly Location
L = Wafer Lot (optional)
Y = Year
W = Work Week
G = Pb-free Package
ORDERING INFORMATION
See detailed ordering and shipping information on page 19 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
April, 2015 − Rev. 2
1
Publication Order Number:
NCN5151/D

قانون اساسیصفحه 20
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