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Evaluation Board, Power Supply, LNB based on the LNBH26S, Built-in DC-DC Converter

STEVAL-LNBH02 - Evaluation Board, Power Supply, LNB based on the LNBH26S, Built-in DC-DC Converter

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STEVAL-LNBH02   Datasheet
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Product Overview

The STEVAL-LNBH02 is a power supply evaluation board for LNB based on the LNBH25S. 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. It is a simple and complete solution for dual tuner satellite receivers and provides high performance at low cost with a low external component count. The LNBH25S evaluation board includes an I²C bus interface and an internal 22KHz tone generator which is factory trimmed and can be controlled by the DSQIN pin (TTL compatible) allowing immediate DiSEqC data encoding.
  • Complete interface between LNB and I²C bus
  • Built-in DC-DC converter for single 12V supply operation and high efficiency (typ. 93% at 0.5A)
  • Selectable output current limit by external resistor
  • Compliant with main satellite receivers output voltage specification (15 programmable levels)
  • Accurate built-in 22KHz tone generator suits widely accepted standards
  • 22KHz tone waveform integrity guaranteed also at no load condition
  • Low drop post regulator, high efficiency step-up PWM with integrated power N-MOS for low power loss
  • LPM function (low power mode) to reduce dissipation
  • Overload and overtemperature internal protection with I²C diagnostic bits
  • LNB short-circuit dynamic protection, ±4KV ESD tolerant on output power pins


Power Management

Product Information

Power Management
LNB Power Supply
Eval Board LNBH25S
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$57.79 ( $66.46  Inc. GST)

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