Maxim Integrated
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
MAX8903JETI+T
Zobrazit detail DataSheets

MAX8903JETI+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
  • Package: 16-pin TQFN
  • Essence: Voltage Regulator and Battery Charger IC
  • 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 Output Current: 1.5A
  • Quiescent Current: 30µA
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8903JETI+T has a 16-pin TQFN package with the following pin configuration:

  1. EN: Enable Input
  2. PG: Power Good Output
  3. STAT: Status Output
  4. VBUS: USB Input Supply
  5. GND: Ground
  6. BAT: Battery Input
  7. SYS: System Output
  8. LDO: Low Dropout Output
  9. LIM: Current Limit Input
  10. TS: Thermal Shutdown Input
  11. ILIM: Input Current Limit
  12. PROG: Programming Input
  13. FB: Feedback Input
  14. BST: Boost Output
  15. SW: Switching Node
  16. VDD: Supply Voltage

Functional Features

  • Integrated voltage regulator and battery charger in a single IC
  • High efficiency power conversion for extended battery life
  • Low quiescent current for reduced power consumption during standby
  • Overvoltage and overcurrent protection for enhanced safety
  • Thermal shutdown protection to prevent overheating
  • Power good and status outputs for system monitoring and control

Advantages and Disadvantages

Advantages: - Compact package size allows for space-saving designs - High efficiency results in longer battery life - Low quiescent current reduces power consumption during idle periods - Integrated protection features enhance system reliability

Disadvantages: - Limited maximum output current of 1.5A may not be suitable for high-power applications - Input voltage range of 2.7V to 5.5V may restrict compatibility with certain power sources

Working Principles

The MAX8903JETI+T operates as a voltage regulator and battery charger by efficiently converting the input voltage to the desired output voltage while charging the connected battery. It utilizes a switching regulator topology to achieve high efficiency power conversion. The IC incorporates various protection mechanisms, such as overvoltage and overcurrent protection, to ensure safe operation. Additionally, it includes thermal shutdown functionality to prevent overheating.

Detailed Application Field Plans

The MAX8903JETI+T is commonly used in portable electronic devices, such as smartphones, tablets, and wearable devices. Its compact package size and low quiescent current make it ideal for space-constrained applications where power efficiency is crucial. The IC's integrated voltage regulation and battery charging capabilities simplify the design process and reduce component count, resulting in cost-effective solutions.

Detailed and Complete Alternative Models

  • MAX8902BETI+: Similar to MAX8903JETI+T but with a lower maximum output current of 1A.
  • MAX8904CETI+: Higher maximum output current of 2A, suitable for more power-demanding applications.
  • MAX8905AETI+: Enhanced efficiency and lower quiescent current compared to MAX8903JETI+T.

These alternative models offer different specifications and features to cater to specific application requirements.

Word count: 408 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX8903JETI+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX8903JETI+T in technical solutions:

  1. Q: What is the MAX8903JETI+T? A: The MAX8903JETI+T is a highly integrated power management IC (PMIC) designed for use in portable devices.

  2. Q: What are the key features of the MAX8903JETI+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 MAX8903JETI+T? A: The input voltage range is typically between 2.7V and 5.5V.

  4. Q: How many voltage regulators are there in the MAX8903JETI+T? A: The MAX8903JETI+T has three high-efficiency step-down regulators and one low-dropout (LDO) regulator.

  5. Q: Can the MAX8903JETI+T charge multiple types of batteries? A: Yes, it supports charging single-cell lithium-ion (Li+) or lithium-polymer (Li-Po) batteries.

  6. Q: Does the MAX8903JETI+T provide overvoltage and overcurrent protection? A: Yes, it includes built-in overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown features.

  7. Q: What is the maximum charging current supported by the MAX8903JETI+T? A: The maximum charging current is typically 1.2A.

  8. Q: Can the MAX8903JETI+T operate in a low-power mode? A: Yes, it has a low-power mode that reduces the quiescent current to conserve battery power.

  9. Q: Is the MAX8903JETI+T suitable for use in portable audio devices? A: Yes, it is designed to meet the requirements of portable audio applications.

  10. Q: What package options are available for the MAX8903JETI+T? A: The MAX8903JETI+T is available in a compact 28-pin TQFN package.

Please note that these answers are general and may vary depending on the specific application and requirements.