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Part Details for LP2954 by Texas Instruments

Overview of LP2954 by Texas Instruments

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Available Datasheets

Part # Manufacturer Description Datasheet
TLP295-4 Toshiba Electronic Devices & Storage Corporation Photocoupler (phototransistor output), DC input, 3750 Vrms, 4 channel, SO16

Part Details for LP2954

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Resources and Additional Insights for LP2954

Reference Designs related to LP2954

  • TIDA-00597 适用于时钟发生器的低噪声电源解决方案参考设计
    The TIDA-00597 can provide very low noise output power for clock generator.
  • Interface to a HIPERFACE Position Encoder Reference Design
    The TIDA-00202 reference design implements an EMC compliant industrial hybrid analog and digital interface to a HIPERFACE position encoder. A 3.3V supply RS485 transceiver with IEC-ESD and IEC-EFT protection is used for the bidirectional parameter channel. For the analog sin/cos signal channel: two options are provided to offer flexibility for connection to processors with and without embedded ADC or redundancy by using both options simultaneously. The first option features a fully differential dual 12-bit ADC with SPI output: the second option features a dual differential input with single-ended analog output (0-3.3V). The design features an industrial compliant 24V input with wide range from 16V to 36V. The power supply for the encoder can be configured from 7 to 12V (default 11V) and offers short-circuit protection. A 3.3V I/O connector with analog and logic signals provides an easy interface to a host processor with HIPERFACE master IP core. For quick evaluation an example firmware is available for a C2000™ Piccolo MCU to calculate the absolute angle position and display it through virtual COM port.
  • PMP7179 具有 VID 控制功能的 9.5W 同步降压参考设计
    PMP7179 参考设计采用 TPS51518 单相 DCAP/DCAP2 控制器生成 0.95V 至 1.05V 的输出电压和 9A 的最大输出电流。一个 2 位 VID 输入可选择四种不同的输出电压。
  • Isolated IGBT Gate-Drive Push-Pull Power Supply with 4 Outputs
    This reference design provides isolated positive and negative voltage rails required for Insulated Gate Bipolar Transistor (IGBT) gate drivers from a single 24-volt DC input supply. IGBTs are used in three phase inverters for variable-frequency drives to control the speed of AC motors. This reference design uses a push-pull isolated control topology and provides isolation compliant to IEC61800-5 and is intended to operate from a pre-regulated 24Vdc input.With a regulated (within 5%) input source: a simple open-loop: free-running oscillator can be implemented with a push-pull PWM controller. This topology is essentially a forward converter with two primary windings used to create a dual-drive winding. This fully utilizes the transformer core's magnetizing current more efficiently than flyback or the forward topologies. Another advantage this configuration has over flyback and forward configurations is that the supply output can be scaled up for higher power drives.This reference design also takes advantage of another benefit of the push pull topology in that multiple transformers can be controlled in parallel from a single controller to generate all the isolated voltage rails required for 3-phase IGBT inverters.Lastly: larger IGBTs for higher power drives sometimes require more gate drive current than what is provided by a typical IGBT gate driver: for which designers often use additional transistors for gate current boosting. This reference design provides +16V on the positive outputs and -8V on the negative outputs to compensate for the added voltage drop in those transistors.

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