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

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  • Intended for analog and digital satellite receivers/Sat-TV and Sat-PC cards, the LNBH25 is a monolithic voltage regulator and interface IC, assembled in QFN24 4x4 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 and low power dissipation together with a 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 % @ 0.5 A)
    • Selectable output current limit by external resistor
    • Compliant with main satellite receivers output voltage specification (15 programmable levels)
    • Accurate built-in 22 kHz tone generator suits widely accepted standards
    • 22 kHz tone waveform integrity guaranteed also at no load condition
    • Low-drop post regulator and high efficiency step-up PWM with integrated power N-MOS allowing low power losses
    • LPM function (low power mode) to reduce dissipation
    • Overload and overtemperature internal protections with I²C diagnostic bits
    • LNB short-circuit dynamic protection
    • +/- 4 kV ESD tolerant on output power pins

样片和购买

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LNBH25PQR QFN-24L Tape And Reel
批量生产
0.768 10000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofLNBH25PQR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3840 1 Order Now
ARROW EUROPE 8000 0 Order Now
Newark Element14 AMERICA 1000 0 Order Now
MOUSER WORLDWIDE 3501 1 Order Now
Farnell Element14 EUROPE 602 1 Order Now

代理商库存报告日期: 2019-11-18

代理商名称

DIGIKEY

库存

3840

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

8000

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

1000

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

3501

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

602

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-18

立即购买

LNBH25PQR

封装

QFN-24L

包装类型

Tape And Reel

单价(US$)

0.768*

Distributor availability ofLNBH25PQR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3840 1 Order Now
ARROW EUROPE 8000 0 Order Now
Newark Element14 AMERICA 1000 0 Order Now
MOUSER WORLDWIDE 3501 1 Order Now
Farnell Element14 EUROPE 602 1 Order Now

代理商库存报告日期: 2019-11-18

代理商名称

DIGIKEY

库存

3840

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

8000

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

1000

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

3501

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

602

Min.Order

1

地区

EUROPE 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$)

0.768

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

      DiSEqC 1.X-compliant single LNB supply and control IC based on the LNBH25

      Single LNB supply and control IC DiSEqC 2.0 compliant based on LNBH25

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS8729
      LNB supply and control IC with step-up and I²C interface
      4.0
      1.03 MB
      PDF
      DS8729

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

    • 描述 版本 文档大小 操作
      AN4175
      LNBH25 supply and control IC with step-up and I²C interface
      2.1
      1.74 MB
      PDF
      AN4175

      LNBH25 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**
LNBH25PQR
批量生产
QFN-24L 工业 Ecopack2

LNBH25PQR

Package:

QFN-24L

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

QFN-24L

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.