Wired Transceivers & Modems | NCN5151

M-BUS スレーブ・トランシーバ

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NCN5151 は、2 線メータ・バス (M-BUS) スレーブ・デバイスとリピータでの使用に向けたシングルチップ統合スレーブ・トランシーバです。NCN5151 は、NCN5150 の機能をベースとして、その上に、無電力メータ向けメータ通信・読み出しシステム (SCR) 専用の 2 線低電力モード、そしてワイヤレス・アプリケーションのサポートを可能にする 3 線低電力モードという、 2 つの低電力モードが追加されています。低電力モードに構成されると、トランシーバは、エネルギーを節約するため定電流源として機能しなくなります。M-BUS モードで構成および使用されている場合、M-BUS の物理層の要件を記載している欧州標準 EN 13757-2 と EN 1434-3 を満足するのに必要なすべての機能があります。3.3V LDO レギュレータ経由で外部回路に使用できる最大 6 つのユニット負荷のプログラミング可能な電源レベルがあります。

  • Multi-energy utility meters:
    - Water
    - Gas
    - Electricity
    - Heating systems
  • Single-chip M-BUS transceiver
  • 2 and 3-Wire low power modes with selection input pins
  • Integrated 3.3V 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 units load 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 -40C to +85C
  • These are Pb-free devices

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NCN5151MNTWG

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Active

CAD Model

Pb

A

H

P

QFN-20

485E

1

260

REEL

2500

N

M-BUS

38400 baud

1

1

3.1

3.6

-

-

-

$1.1513

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