Meixin Integrated
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MAX8903CETI+T
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MAX8903CETI+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, compact size, low power consumption
  • Package: 16-pin TQFN (Thin Quad Flat No-Lead) package
  • Essence: Voltage regulator and battery charger
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 1.8V to 4.2V
  • Maximum Charging Current: 1.5A
  • Quiescent Current: 30µA
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX8903CETI+T features a 16-pin TQFN package with the following pin configuration:

  1. EN (Enable)
  2. VIN (Input Voltage)
  3. VBAT (Battery Voltage)
  4. GND (Ground)
  5. PGND (Power Ground)
  6. SYS (System Voltage)
  7. CHG (Charger Status)
  8. STAT (Status Indicator)
  9. ISET (Current Limit Set)
  10. TS (Thermal Shutdown)
  11. BAT (Battery Connection)
  12. VOUT (Output Voltage)
  13. FB (Feedback)
  14. LX (Switching Node)
  15. BST (Boost Voltage)
  16. SW (Switch)

Functional Features

  • Integrated voltage regulator and battery charger
  • High charging efficiency and low power dissipation
  • Overvoltage and overcurrent protection
  • Thermal shutdown protection
  • Programmable current limit
  • Status indicator for charging status monitoring

Advantages and Disadvantages

Advantages: - Compact size and high integration - Efficient power management - Wide input and output voltage range - Programmable current limit for flexible charging options

Disadvantages: - Limited maximum charging current (1.5A) - Requires external components for complete power management solution

Working Principles

The MAX8903CETI+T is a voltage regulator and battery charger IC designed for portable electronic devices. It efficiently converts the input voltage (VIN) to the desired output voltage (VOUT) while simultaneously charging the connected battery (VBAT). The IC incorporates various protection features such as overvoltage, overcurrent, and thermal shutdown to ensure safe operation.

The charging current can be programmed using the ISET pin, allowing flexibility in charging different battery types. The status indicator pin (STAT) provides real-time information about the charging status, enabling users to monitor the progress.

Detailed Application Field Plans

The MAX8903CETI+T finds applications in various portable electronic devices, including but not limited to:

  1. Smartphones and tablets
  2. Portable media players
  3. Wearable devices
  4. Bluetooth headsets
  5. GPS navigation systems
  6. Portable gaming consoles

Its compact size, high efficiency, and wide input/output voltage range make it suitable for these applications, where space and power consumption are critical factors.

Detailed and Complete Alternative Models

  1. MAX8903AETI+T: Similar functionality with a lower maximum charging current of 1A.
  2. MAX8903BETI+T: Higher maximum charging current of 2A, suitable for devices requiring faster charging.
  3. MAX8903DETI+T: Enhanced protection features, including reverse polarity protection and short-circuit protection.

These alternative models provide options based on specific requirements and can be considered as alternatives to the MAX8903CETI+T depending on the application's needs.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням MAX8903CETI+T у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of MAX8903CETI+T in technical solutions:

  1. Q: What is the MAX8903CETI+T? A: The MAX8903CETI+T is a highly integrated power management IC (PMIC) designed for use in portable devices.

  2. Q: What are the key features of the MAX8903CETI+T? A: The key features include multiple voltage regulators, battery charger, power switches, and protection circuits.

  3. Q: What is the input voltage range supported by the MAX8903CETI+T? A: The input voltage range is typically between 2.7V and 5.5V.

  4. Q: How many voltage regulators are there in the MAX8903CETI+T? A: The MAX8903CETI+T has three high-efficiency step-down regulators and one low-dropout (LDO) regulator.

  5. Q: Can the MAX8903CETI+T charge multiple types of batteries? A: Yes, it supports charging single-cell lithium-ion/polymer batteries with programmable current and voltage limits.

  6. Q: Does the MAX8903CETI+T have any protection features? A: Yes, it includes overvoltage protection, undervoltage lockout, thermal shutdown, and short-circuit protection.

  7. Q: What is the maximum output current of the MAX8903CETI+T? A: The maximum output current varies depending on the specific regulator, but it can go up to several amps.

  8. Q: Can the MAX8903CETI+T be used in automotive applications? A: No, it is not specifically designed for automotive applications and may not meet the required standards.

  9. Q: Is there any documentation available for the MAX8903CETI+T? A: Yes, you can refer to the datasheet provided by the manufacturer for detailed information on its specifications and usage.

  10. Q: What are some typical applications of the MAX8903CETI+T? A: The MAX8903CETI+T is commonly used in smartphones, tablets, portable media players, and other battery-powered devices.

Please note that these answers are general and may vary depending on the specific requirements and use cases. It's always recommended to consult the datasheet and application notes for accurate information.