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LNBH24L Datasheet Dual Lnbs Supply/controller

Manufacturer: STMicroelectronics

Overview: LNBH24L Dual LNBS supply and control IC with step-up and I²C.

General Description

Intended for analog and digital DUAL satellite receivers/Sat-TV, Sat-PC cards, the LNBH24L is a monolithic voltage regulator and interface IC, assembled in QFN 5x5 ePAD, specifically designed to provide the 13 / 18 V power supply and the 22 kHz tone signaling for two independent LNB down-converters in the antenna dishes and/or multi-switch box.

In this application field, it offers a dual tuner STBs plete solution with extremely low ponent count, low power dissipation together with simple design and I²C standard interfacing.

QFN32 5 x 5 mm (ePad) Table 1.

Key Features

  • Complete interface between LNBS 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.
  • Auxiliary modulation input (EXTM) facilitates DiSEqC™ 1.X encoding.
  • Low-drop post regulator and high efficiency step-up PWM with integrated power N-MOS allow low power losses.
  • Overload and over-tempe.

More Datasheets from STMicroelectronics

Part Number Description
LNBH24 DUAL LNB SUPPLY/CONTROLLER
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LNBH221 DUAL LNB SUPPLY/CONTROLLER
LNBH23 LNBs supply/controller
LNBH23L LNB SUPPLY/CONTROLLER
LNBH25 LNB-supply / controller
LNBH25L LNB supply/controller
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LNBH25S LNB-supply / controller

LNBH24L Distributor