Maxim Integrated
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MAX8939AEWV+T
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MAX8939AEWV+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-efficiency, compact size, low power consumption
  • Package: WLP (Wafer Level Package)
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 0.6V to 3.3V
  • Maximum Output Current: 1.5A
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8939AEWV+T has a total of 20 pins. Here is the detailed pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. EN: Enable pin
  4. FB: Feedback pin
  5. PG: Power Good indicator pin
  6. VOUT: Output voltage pin
  7. SW: Switching node pin
  8. BST: Boost capacitor connection pin
  9. AGND: Analog ground pin
  10. LX: Inductor connection pin
  11. SS/TR: Soft-start/Tracking pin
  12. VDD: Supply voltage pin for internal circuitry
  13. PGND: Power ground pin
  14. COMP: Compensation pin
  15. ILIM: Current limit setting pin
  16. SS/TR: Soft-start/Tracking pin
  17. VREF: Reference voltage output pin
  18. VSET: Output voltage setting pin
  19. VSEL: Output voltage selection pin
  20. VBIAS: Bias voltage input pin

Functional Features

  • High efficiency power conversion
  • Low quiescent current
  • Overcurrent protection
  • Thermal shutdown protection
  • Soft-start and tracking functionality
  • Power good indicator

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Compact size allows for space-saving designs - Wide input voltage range provides flexibility in various applications - Overcurrent and thermal protection ensure safe operation

Disadvantages: - Limited maximum output current of 1.5A - Operating temperature range may not be suitable for extreme environments

Working Principles

The MAX8939AEWV+T is a voltage regulator IC that converts an input voltage within the range of 2.7V to 5.5V into a regulated output voltage between 0.6V and 3.3V. It utilizes a switching topology to achieve high efficiency power conversion. The IC incorporates various protection features such as overcurrent and thermal shutdown to ensure safe operation. Additionally, it offers soft-start and tracking functionality for controlled startup and voltage tracking.

Detailed Application Field Plans

The MAX8939AEWV+T is widely used in various applications requiring power management. Some of the common application fields include:

  1. Mobile Devices: Smartphones, tablets, portable media players
  2. Wearable Electronics: Smartwatches, fitness trackers
  3. IoT (Internet of Things) Devices: Sensors, wireless modules
  4. Portable Gaming Consoles
  5. Industrial Equipment: Handheld devices, measurement instruments

Detailed and Complete Alternative Models

  1. MAX8939AEWV+T: The specific model being discussed in this entry.
  2. MAX8939BEWV+T: Similar to MAX8939AEWV+T with enhanced features.
  3. MAX8939CEWV+T: Higher output current variant of MAX8939AEWV+T.
  4. MAX8939DEWV+T: Lower quiescent current variant of MAX8939AEWV+T.

These alternative models offer similar functionality with slight variations in features, output current, or power consumption.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX8939AEWV+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX8939AEWV+T in technical solutions:

  1. Q: What is the MAX8939AEWV+T? A: The MAX8939AEWV+T is a highly integrated power management IC (PMIC) designed for use in portable devices such as smartphones, tablets, and wearables.

  2. Q: What are the key features of the MAX8939AEWV+T? A: The key features include multiple voltage regulators, battery charger, fuel gauge, power switches, and various protection circuits.

  3. Q: How many voltage regulators are there in the MAX8939AEWV+T? A: The MAX8939AEWV+T has six high-efficiency buck converters and two low-dropout linear regulators (LDOs).

  4. Q: Can the MAX8939AEWV+T charge different types of batteries? A: Yes, the MAX8939AEWV+T supports charging lithium-ion (Li+) and lithium-polymer (Li-Po) batteries.

  5. Q: Does the MAX8939AEWV+T have any built-in protection features? A: Yes, it includes overvoltage protection (OVP), undervoltage lockout (UVLO), thermal shutdown, and short-circuit protection.

  6. Q: What is the maximum charging current supported by the MAX8939AEWV+T? A: The MAX8939AEWV+T can support charging currents up to 2A.

  7. Q: Can the MAX8939AEWV+T provide power to external components? A: Yes, it has multiple power switches that can be used to supply power to external components such as sensors, LEDs, or audio amplifiers.

  8. Q: Is the MAX8939AEWV+T programmable? A: Yes, it can be programmed through an I2C interface to adjust various parameters and settings.

  9. Q: What is the operating temperature range of the MAX8939AEWV+T? A: The MAX8939AEWV+T has an operating temperature range of -40°C to +85°C.

  10. Q: Are there any evaluation kits available for the MAX8939AEWV+T? A: Yes, Maxim Integrated provides evaluation kits that include the MAX8939AEWV+T along with documentation and software tools for testing and development purposes.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.