Active-Semi International Inc.
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ACT8938
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ACT8938

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management IC
  • Characteristics: High efficiency, compact size, multiple power supply outputs
  • Package: QFN (Quad Flat No-Lead) package
  • Essence: Power management and control for electronic devices
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 0.6V to 3.3V
  • Number of Outputs: 8
  • Maximum Output Current: 1A per output
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ACT8938 has a total of 48 pins. The pin configuration is as follows:

  1. VDDIO1
  2. VDDIO2
  3. VDDIO3
  4. VDDIO4
  5. VDDIO5
  6. VDDIO6
  7. VDDIO7
  8. VDDIO8
  9. GND
  10. VIN
  11. VBAT
  12. VRTC
  13. VDDCORE
  14. VDDARM
  15. VDDMEM
  16. VDDPLL
  17. VDDRF
  18. VDDPA
  19. VDDTX
  20. VDDRXCAL
  21. VDDRXTX
  22. VDDRXRX
  23. VDDRXADC
  24. VDDRXBB
  25. VDDRXIF
  26. VDDRXRF
  27. VDDRXLO
  28. VDDRXMIX
  29. VDDRXVCO
  30. VDDRXCP
  31. VDDRXLPF
  32. VDDRXBBPLL
  33. VDDRXADCPLL
  34. VDDRXRFPLL
  35. VDDRXLOPLL
  36. VDDRXMIXPLL
  37. VDDRXVCOPLL
  38. VDDRXCPPLL
  39. VDDRXLPFPLL
  40. VDDTXDAC
  41. VDDTXPA
  42. VDDTXRF
  43. VDDTXLO
  44. VDDTXMIX
  45. VDDTXVCO
  46. VDDTXCP
  47. VDDTXLPF
  48. VDDTXBBPLL

Functional Features

  • Integrated power management solution for electronic devices
  • Efficient power conversion and regulation
  • Multiple power supply outputs for different components
  • Low power consumption in standby mode
  • Overcurrent and overvoltage protection
  • Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency power management - Compact size for space-constrained applications - Multiple power supply outputs for versatile device support - Comprehensive protection features

Disadvantages: - Limited maximum output current per output (1A)

Working Principles

The ACT8938 is a power management IC designed to efficiently regulate and distribute power within electronic devices. It accepts an input voltage range of 2.7V to 5.5V and provides multiple output voltages ranging from 0.6V to 3.3V. The IC incorporates various control circuits, such as voltage regulators, current limiters, and thermal protection, to ensure stable and reliable power delivery to different components.

Detailed Application Field Plans

The ACT8938 is widely used in various electronic devices that require efficient power management. Some common application fields include:

  1. Mobile Devices: Smartphones, tablets, portable media players
  2. Wearable Devices: Smartwatches, fitness trackers
  3. Internet of Things (IoT) Devices: Home automation systems, smart sensors
  4. Portable Gaming Consoles
  5. Industrial Control Systems
  6. Medical Devices

Detailed and Complete Alternative Models

  1. ACT8939: Similar power management IC with additional features for higher power requirements.
  2. ACT8945A: Power management IC with integrated battery charging functionality.
  3. ACT8865: Power management IC with fewer outputs but higher maximum output current per output.

These alternative models offer similar functionality to the ACT8938 but may have different specifications or additional features depending on specific application requirements.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng ACT8938 trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of ACT8938 in technical solutions:

  1. Q: What is ACT8938? A: ACT8938 is a high-performance power management integrated circuit (PMIC) designed for use in various technical solutions.

  2. Q: What are the key features of ACT8938? A: The key features of ACT8938 include multiple voltage regulators, battery charger, fuel gauge, GPIOs, I2C interface, and various protection mechanisms.

  3. Q: How can ACT8938 be used in technical solutions? A: ACT8938 can be used to efficiently manage power distribution, regulate voltages, charge batteries, monitor battery levels, control peripherals, and provide system-level protection.

  4. Q: Can ACT8938 support multiple voltage domains? A: Yes, ACT8938 supports multiple voltage domains, allowing it to power different components of a system with varying voltage requirements.

  5. Q: Does ACT8938 have built-in protection mechanisms? A: Yes, ACT8938 incorporates various protection mechanisms such as overvoltage protection, undervoltage lockout, thermal shutdown, and short-circuit protection.

  6. Q: Is ACT8938 compatible with different communication interfaces? A: Yes, ACT8938 supports the I2C interface, which enables easy integration and communication with other devices in the system.

  7. Q: Can ACT8938 be used in battery-powered applications? A: Absolutely, ACT8938 is well-suited for battery-powered applications as it includes a battery charger and fuel gauge functionality.

  8. Q: What is the efficiency of ACT8938's voltage regulators? A: ACT8938's voltage regulators are highly efficient, typically achieving conversion efficiencies above 90%.

  9. Q: Can ACT8938 be programmed or customized for specific requirements? A: Yes, ACT8938 offers programmability through its I2C interface, allowing customization of various parameters and settings.

  10. Q: Is ACT8938 widely available and supported in the market? A: Yes, ACT8938 is a popular PMIC solution and is widely available from various suppliers. It also has good technical support and documentation.

Please note that these questions and answers are general and may vary depending on specific use cases and requirements.