产品概述
描述
This evaluation board implements a DC-DC converter based on the LNBH25LS device. It is used to power LNBs inside dish antennas to receive satellite TV signals.
The LNBH25LS 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 offers high performance at low cost with a low external component count.
The LNBH25LS 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), allowing 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.
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所有功能
- Complete interface between LNB and I²C bus
- Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93% at 0.5 A)
- Selectable output current limit by external resistor
- Compliant with output voltage specifications for 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 for 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
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所有资源
| 资源标题 | 版本 | 更新时间 |
|---|
MCSDK Board Description (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| ZIP | 1.0 | 27 Sep 2016 | 27 Sep 2016 |
物料清单 (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| 1.0 | 27 Sep 2016 | 27 Sep 2016 |
Schematic Pack (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| 1.0 | 27 Sep 2016 | 27 Sep 2016 |
质量与可靠性
| 产品型号 | Marketing Status | 包 | 等级规格 | 符合RoHS级别 | WEEE Compliant | Longevity Commitment | Longevity Starting Date | 材料声明** |
|---|---|---|---|---|---|---|---|---|
| STEVAL-LNBH01 | 批量生产 | CARD | 工业 | Ecopack2 | - | - | - | |
STEVAL-LNBH01
Package:
CARDMaterial Declaration**:
(**) 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。
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 供应商 | 核心产品 | Board production status | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-LNBH01 | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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STEVAL-LNBH01 批量生产