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  • This evaluation board implements a DC-DC converter based on the LNBH25S device. It is used to power LNBs inside dish antennas to receive satellite TV signals.

    The LNBH25S is an integrated solution for supplying / interfacing satellite LNB modules in accordance with international standards. This simple solution offers a complete solution for dual tuner satellite receivers and provides good performance at low cost using a low external component count.
    The LNBH25S evaluation board includes an I²C bus interface and the internal 22 kHz tone generator which is factory trimmed and can be controlled by the DSQIN pin (TTL compatible), which allows immediate DiSEqC™ data encoding.
    Thanks to a fully integrated step-up DC-DC converter, it functions with a single input voltage supply source ranging from 8 V to 16 V.

    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 output voltage specifications of principal satellite receivers (15 programmable levels)
    • Accurate built-in 22 kHz tone generator suits widely accepted standards
    • 22 kHz tone waveform integrity guaranteed even 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 protection with I²C diagnostic bits
    • LNB short-circuit dynamic protection
    • ±4 kV ESD tolerant on output power pins
    • RoHS compliant

样片和购买

产品型号
核心产品
供货状态
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ECCN (US)
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STEVAL-LNBH03 LNBH25S
批量生产
- - EAR99 ITALY 没有经销商,请联系我们的销售办事处

STEVAL-LNBH03

核心产品

LNBH25S

供货状态

批量生产

单价(US$)

*

单价(US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

ITALY

(*) 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

适合您的资源

软件

    • 产品型号

      Windows GUI for debugging the LNBH25xx and LNBH26xx LNB supply and control ICs via IAA?C bus

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技术文档

    • 描述 版本 文档大小 操作
      DB3033
      Power supply evaluation board for LNB based on the LNBH25S
      1.0
      242.6 KB
      PDF
      DB3033

      Power supply evaluation board for LNB based on the LNBH25S

法律

    • 描述 版本 文档大小 操作
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

产品型号 供货状态 封装 等级规格 符合RoHS级别 WEEE Compliant Material Declaration**
STEVAL-LNBH03
批量生产
CARD 工业 Ecopack2 -

STEVAL-LNBH03

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

Package

CARD

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.