STMicroelectronics
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PM8803CTR

PM8803CTR

Product Overview

  • Category: Integrated Circuit
  • Use: Power Management
  • Characteristics: High efficiency, compact size, low power consumption
  • Package: SOT-23-5
  • Essence: Power management IC for portable electronic devices
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 1.2V to 3.3V
  • Maximum Output Current: 500mA
  • Quiescent Current: 30µA (typical)
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PM8803CTR has a total of five pins:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. EN: Enable pin
  4. FB: Feedback pin
  5. VOUT: Output voltage pin

Functional Features

  • Low dropout voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Short-circuit protection
  • Soft start function
  • Adjustable output voltage

Advantages and Disadvantages

Advantages

  • High efficiency leads to longer battery life
  • Compact size allows for integration in small devices
  • Low power consumption reduces energy usage
  • Overcurrent and short-circuit protection enhance device safety
  • Adjustable output voltage provides flexibility

Disadvantages

  • Limited maximum output current may not be suitable for high-power applications
  • Operating temperature range may restrict usage in extreme environments

Working Principles

The PM8803CTR is a step-down DC-DC converter that regulates the input voltage to a lower, adjustable output voltage. It utilizes a pulse-width modulation (PWM) control scheme to efficiently convert the power. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output.

Detailed Application Field Plans

The PM8803CTR is widely used in various portable electronic devices, including:

  1. Smartphones
  2. Tablets
  3. Portable media players
  4. Wearable devices
  5. Bluetooth headsets
  6. GPS navigation systems

Its compact size, high efficiency, and low power consumption make it ideal for these applications.

Detailed and Complete Alternative Models

  1. PM8802CTR: Similar specifications, but with a fixed output voltage of 3.3V
  2. PM8804CTR: Higher maximum output current of 1A, suitable for more power-demanding applications
  3. PM8805CTR: Adjustable output voltage range from 0.8V to 3.3V, providing greater flexibility

These alternative models offer different features and capabilities to cater to diverse requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací PM8803CTR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of PM8803CTR in technical solutions:

  1. Q: What is PM8803CTR?
    A: PM8803CTR is a power monitoring integrated circuit (IC) that provides accurate measurements of electrical parameters in various applications.

  2. Q: What are the key features of PM8803CTR?
    A: The key features of PM8803CTR include high accuracy, low power consumption, wide voltage range, and built-in communication interfaces.

  3. Q: How can PM8803CTR be used in energy management systems?
    A: PM8803CTR can be used to measure and monitor energy consumption in real-time, enabling efficient energy management and cost savings.

  4. Q: Can PM8803CTR be used in industrial automation applications?
    A: Yes, PM8803CTR is suitable for industrial automation as it can measure parameters like voltage, current, power factor, and harmonics in electrical systems.

  5. Q: Is PM8803CTR compatible with microcontrollers or microprocessors?
    A: Yes, PM8803CTR has built-in communication interfaces such as I2C and SPI, making it easy to interface with microcontrollers or microprocessors.

  6. Q: Can PM8803CTR measure both single-phase and three-phase systems?
    A: Yes, PM8803CTR can measure both single-phase and three-phase systems, providing comprehensive power monitoring capabilities.

  7. Q: Does PM8803CTR support non-linear loads?
    A: Yes, PM8803CTR can accurately measure parameters even in the presence of non-linear loads, thanks to its advanced algorithms.

  8. Q: Can PM8803CTR be used in renewable energy systems?
    A: Absolutely, PM8803CTR is commonly used in renewable energy systems to monitor the performance and efficiency of solar panels or wind turbines.

  9. Q: Is PM8803CTR suitable for building management systems?
    A: Yes, PM8803CTR can be integrated into building management systems to monitor energy consumption, optimize HVAC systems, and identify energy-saving opportunities.

  10. Q: Are there any specific application notes or reference designs available for PM8803CTR?
    A: Yes, the manufacturer of PM8803CTR typically provides application notes and reference designs that help engineers integrate the IC into their technical solutions effectively.

Please note that the answers provided here are general and may vary depending on the specific requirements and use cases.