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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.

    主要特性

    • 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
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
从ST订购
从分销商订购
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

Budgetary Price (US$)*/Qty

Budgetary Price (US$)* / Qty

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

00 选择要下载的文档

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
      Terms of use 1.7
      57.54 KB
      PDF

      Terms of use

产品型号 供货状态 封装 等级规格 符合RoHS级别 WEEE Compliant 材料声明**
STEVAL-LNBH03
批量生产
CARD Industrial Ecopack2 -

STEVAL-LNBH03

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持