A8285 and A8287: LNB Supply and Control Voltage Regulator

These parts are discontinued.  Samples are no longer available. For new customers or new applications, please contact Allegro. Date of status change: December 2, 2013.

Intended for analog and digital satellite receivers, the LNB (low noise block) converter regulator is a monolithic linear and switching voltage regulator, specifically designed to provide power and interface signals to an LNB downconverter, via coaxial cable.

The device uses a 2-wire bidirectional serial interface, compatible with the I2C (Inter-C bus) standard, that operates up to 400 kHz.

The A8285 is supplied in a 16-lead plastic power SOIC with internally fused leads for thermal dissipation. The A8287 is supplied in a 24-lead plastic power SOIC with internally fused leads. Both devices are also available in lead (Pb) free versions, with 100% matte tine leadframe plating.

SAMPLE & BUY

Astrorep Inc. (Allegro およびサンケン半導体、サンケン電源)
141 John Street, Suite 300
Babylon, NY 11702
電話: (631)422-2500
ファックス: (631)422-2504
Web: www.astrorepinc.com
電子メール: donna.tweedy@astrorepinc.com

If this is not your local representative, find your local sales rep here.

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  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • LNB selection and standby function
  • Provides up to 500 mA load current
  • Two-wire serial I2C interface
  • Built-in tone oscillator, factory-trimmed to 22 kHz; facilitates
  • DiSEqC™ 2.0 encoding
  • Auxiliary modulation input
  • 22 kHz tone detector facilitates DiSEqC™ decoding (A8287 only)
  • Tracking switch-mode power converter for lowest dissipation
  • LNB overcurrent protection and diagnostics
  • Internal overtemperature protection
  • LNB voltages (16 possible levels) compatible with all common standards

The A8285 is supplied in a 16-lead plastic power SOIC with internally fused leads for thermal dissipation. The A8287 is supplied in a 24-lead plastic power SOIC with internally fused leads. Both devices are also available in lead (Pb) free versions, with 100% matte tine leadframe plating.

LB-SOIC 24 pin

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Functional Block Diagram Pinout Diagrams

部品番号の仕様およびライフサイクル ステータス

Part Number Package Type Temperature RoHS
適合
部品構成 /
RoHS データ
Comments Samples 代理店の
在庫確認
A8285SLBTR-T 16-lead SOIC -20°C to 85°C Y データを見る 生産中止
地域の販売担当者へのお問い合わせ
在庫の確認
A8287SLBTR-T 24-lead SOIC -20°C to 85°C Y データを見る 生産中止
地域の販売担当者へのお問い合わせ
在庫の確認

Allegro 製品が生命維持装置やシステムの故障の原因となることが予期できる場合、または安全性や有効性に影響を及ぼすことが予想できる場合、そのような生命維持装置やシステムに Allegro 製品はご使用いただけません。

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