LNBP12SP-TR - Brand New STMicroelectronics Special Purpose Voltage Regulators
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Description
Intended for analog and digital satellite receivers, the LNBP12SP-TR is a monolithic linear voltage regulator. It is assembled in PowerSO-20 and PowerSO-10 packages and is specifically designed to provide the powering voltages and interfacing signals to the LNB downconverter situated in the antenna via the coaxial cable. Most satellite receivers have two antenna ports, and the output voltage of the regulator is available at one of two logic-selectable output pins (LNBA, LNBB). When the IC is powered and put in Stand-by (EN pin LOW), both regulator outputs are disabled to allow the antenna downconverters to be supplied/controlled by other satellite receivers sharing the same coaxial lines. In this occurrence, the device will limit the backward current that could flow from LNBA and LNBB output pins to GND to a maximum of 3 mA. (See continuous description.)
Specifications and features
■ Complete interface for two LNBs remote supply and control
■ LNB selection and stand-by function
■ Built-in tone oscillator factory trimmed at 22KHz
■ Fast oscillator start-up facilitates DiSEqCTM encoding
■ Two supply inputs for lowest dissipation
■ Bypass function for slave operation
■ LNB short circuit protection and diagnostic
■ Auxiliary modulation input extends flexibility
■ Cable length compensation
■ Internal over-temperature protection
■ Backward current protectionApplication Scenarios
The LNBP12SP-TR is primarily used in analog and digital satellite receivers. It provides the powering voltages and interfacing signals to the LNB downconverter situated in the antenna via the coaxial cable. The device is designed to work with satellite receivers that have two antenna ports, allowing for the selection of different LNB outputs. It also has features such as stand-by function, built-in tone oscillator, and fast oscillator start-up that facilitate DiSEqCTM encoding. The LNBP12SP-TR is suitable for applications where remote supply and control of two LNBs are required, along with protection features like LNB short circuit protection and diagnostic.
Comparison
The LNBP12SP-TR offers several advantages, including a complete interface for two LNBs remote supply and control, LNB selection and stand-by function, built-in tone oscillator factory trimmed at 22KHz, fast oscillator start-up, and backward current protection. It also has features like two supply inputs for lowest dissipation, bypass function for slave operation, cable length compensation, and internal over-temperature protection. However, one disadvantage of this model is that both regulator outputs are disabled when the IC is powered and put in Stand-by (EN pin LOW), limiting the backward current that could flow from LNBA and LNBB output pins to GND to a maximum of 3 mA.
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Similar parts: 1605 , Click to view
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Datasheet
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Popular parts of the same kind
- Datasheet: Download LNBP12SP-TR
- Chipdatas Part: CD93-LNBP12SP-TR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
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- Last Updated: 2024/06/13 08:12 +0800
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