Интеллектуальный антенный модуль

Описание:
This reference design uses an LM63635-Q1 synchronous buck converter to output either a 3.3-V or 5-V rail. The bus converter switches at 2.1 MHz, and the load converters (TPS62810-Q1) switch at 2.2 MHz. The system is designed for telematics control unit power. Easily configurable jumpers allow users to enable and disable the bus converter, load converters and load switches for up to 3-A maximum load at each output.
Возможности:

Features
  • 12-V input, bus converter with selectable 3.3-V or 5-V outputs
  • Four selectable load switch outputs with 3-A maximum load
  • All switching converters operate above 2 MHz to avoid AM band
  • Very good output ripple with and without load (<1%)
  • Built for easy testability using configurable jumpers and test points

Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Топология платы
Описание:
This reference design is a 100-W synchronous buck converter to supply automotive loads. The IC is LM5146-Q1 in fixed frequency operation at 250 kHz to ensure low noise operation. A resistor-capacitor (RC) snubber attenuates noise in the RF band to reduce radiated emissions. To reduce system EMI, the design is prepared to either synchronize other converters (output) or be externally synchronized (input).
Возможности:

Features
  • Power stage withstands surge voltages up to 36 Vpk
  • Efficiency higher than 95% over a output current range of 5-A to 20-A (at 14-V input voltage)
  • Tight load regulation results in a low deviation (5 mV) of the output voltage over the whole range of the input voltage
  • Input filter for minimizing conducted emissions is included

Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Топология платы
  • Тестирование
Описание:
This reference design is a 50-W synchronous buck converter to supply automotive loads. The IC is LM5146-Q1 in fixed frequency operation at 400 kHz to ensure low noise operation. A resistor-capacitor (RC) snubber attenuates noise in the RF band to reduce radiated emissions. To reduce system EMI, the design is prepared to either synchronize other converters (output) or be externally synchronized (input).
Возможности:

Features
  • Power stage withstands surge voltages up to 36 Vpk
  • Efficiency higher than 95% over a output current range of 2.5-A to 10-A (at 14-V input voltage)
  • Tight load regulation results in a low deviation (2 mV) of the output voltage over the whole range of the input voltage
  • Input filter for minimizing conducted emissions is included

Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Топология платы
  • Тестирование
Описание:
This reference design provides protection and diagnostics for antenna modules for use in automotive infotainment and navigation systems. This design is an alternate solution for antenna low-dropout linear regulators (LDOs) for the purpose of achieving lower ohmic drop (IR) while meeting the necessary protection measures such as short circuit, short-to-battery, reverse current, and overvoltage protection. The design also meets the subsystem-level diagnostic requirements such as precise light load and overload detection.
Возможности:

Open Load Detection at 10 mA (Typical) Selectable Overcurrent Detection at 300 mA, 600 mA, 900 mA, 1.2 A Shutoff in 1 μs (Typical) to Short-to-Battery Fault Fast Response of 200 ns (Typical) to Short-to-Ground Fault Low IR Drop With TPS25940-Q1 (42 mΩ RON)

Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Топология платы

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