LNBs supply and control IC with step-up and I2C interface

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  • Intended for analog and digital satellite receivers/sat-TV, sat-PC cards, the LNBH23 is a monolithic voltage regulator and interface IC, assembled in PowerSSO-24 ePAD and QFN32 (5 x 5 mm.) ePAD, specifically designed to provide the 13/18 V power supply and the 22 kHz tone signalling to the LNB down-converter in the antenna dish or to the multi-switch box. In this application field, it offers a complete solution with extremely low component count, low power dissipation together with simple design and I²C standard interfacing.

    Key Features

    • Complete interface between LNB and I²C bus
    • Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93% @ 0.75 A), with integrated NMOS
    • Selectable output current limit by external resistor
    • Compliant with main satellite receiver systems specifications
    • New accurate built-in 22 kHz tone generator suits widely accepted standards (patent pending)
    • Fast oscillator start-up facilitates DiSEqC™ encoding
    • Built-in 22 kHz tone detector supports bi-directional DiSEqC™ 2.0
    • Very low-drop post regulator and high efficiency step-up PWM with integrated power NMOS allow low power losses
    • Two output pins suitable to by-pass the output R-L filter and avoid any tone distortion (R-L filter as per DiSEqC™ 2.0 specs, see typ. application circuits)
    • Overload and over-temperature internal protections with I²C diagnostic bits
    • Output voltage and output current level diagnostic feedback by I²C bits
    • LNB short circuit dynamic protection
    • ± 4 kV ESD tolerant on output power pins

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LNBH23QTR VFQFPN 32 5x5x1.0 Tape And Reel
批量生产
1.438 10000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofLNBH23QTR

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地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2811 1 Order Now
MOUSER WORLDWIDE 5797 1 Order Now

代理商库存报告日期: 2019-11-18

代理商名称

DIGIKEY

库存

2811

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

5797

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-18

立即购买

LNBH23QTR

封装

VFQFPN 32 5x5x1.0

包装类型

Tape And Reel

单价(US$)

1.438*

Distributor availability ofLNBH23QTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2811 1 Order Now
MOUSER WORLDWIDE 5797 1 Order Now

代理商库存报告日期: 2019-11-18

代理商名称

DIGIKEY

库存

2811

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

5797

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-18

供货状态

批量生产

单价(US$)

1.438

数量

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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    • 产品型号

      LNB power supply demonstration board based on the LNBH23

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技术文档

    • 描述 版本 文档大小 操作
      DS5188
      LNBs supply and control IC with step-up and I²C interface
      8.0
      445.38 KB
      PDF
      DS5188

      LNBs supply and control IC with step-up and I²C interface

    • 描述 版本 文档大小 操作
      AN2713
      LNB power supply based on the LNBH23 supply and control IC with step-up and I²C interface
      1.1
      1.23 MB
      PDF
      AN2713

      LNB power supply based on the LNBH23 supply and control IC with step-up and I²C interface

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      Peripheral semiconductors for set-top box applications 4.3
      633.85 KB
      PDF

      Peripheral semiconductors for set-top box applications

产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
LNBH23QTR
批量生产
VFQFPN 32 5x5x1.0 工业 Ecopack2

LNBH23QTR

Package:

VFQFPN 32 5x5x1.0

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

VFQFPN 32 5x5x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.