MAX1556ETB+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
• Package: 10-Pin TDFN (Thin Dual Flat No-Lead) Package
• Essence: Power Management IC for Lithium-Ion Battery Charging
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 28V
• Charge Voltage Range: 3.5V to 4.5V
• Maximum Charge Current: 1A
• Quiescent Current: 55µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1556ETB+T has the following pin configuration:

1. GND (Ground)
2. IN (Input Voltage)
3. EN (Enable)
4. STAT (Status Output)
5. PROG (Charge Current Programming)
6. TS (Thermal Shutdown)
7. BAT (Battery Connection)
8. VCC (Supply Voltage)
9. PGND (Power Ground)
10. CE (Charge Enable)

Functional Features

• Integrated power switch and current-sense resistor for simplified design
• Automatic power-path management allows charging of the battery while powering the system
• Programmable charge current through external resistor
• Thermal shutdown protection prevents damage due to excessive heat
• Status output pin indicates charging status
• Low quiescent current minimizes power consumption in standby mode

Advantages and Disadvantages

Advantages: - High efficiency charging - Compact package size - Wide input voltage range - Programmable charge current

Disadvantages: - Maximum charge current limited to 1A - Limited operating temperature range

Working Principles

The MAX1556ETB+T is a power management IC designed for charging lithium-ion batteries. It utilizes an integrated power switch and current-sense resistor to simplify the design process. The device features automatic power-path management, allowing simultaneous battery charging and system powering. The charge current can be programmed using an external resistor, providing flexibility in charging different battery capacities. Thermal shutdown protection ensures safe operation by preventing excessive heat buildup. The status output pin indicates the charging status, enabling easy monitoring.

Detailed Application Field Plans

The MAX1556ETB+T is widely used in various portable electronic devices that require lithium-ion battery charging. Some common application fields include:

1. Smartphones and Tablets: The IC is used in mobile devices to efficiently charge the built-in lithium-ion batteries, ensuring optimal battery life and performance.

2. Portable Medical Devices: Medical equipment such as portable monitors and diagnostic devices benefit from the MAX1556ETB+T's compact size and high efficiency charging capabilities.

3. Wearable Technology: Fitness trackers, smartwatches, and other wearable devices rely on this IC for reliable and efficient battery charging.

4. Portable Gaming Consoles: Handheld gaming consoles utilize the MAX1556ETB+T to provide fast and efficient charging for extended gameplay sessions.

Detailed and Complete Alternative Models

1. MAX1557ETB+T: Similar to MAX1556ETB+T, but with a higher maximum charge current of 1.5A.
2. MAX1558ETB+T: Offers additional features such as overvoltage protection and programmable input current limit.
3. MAX1559ETB+T: Designed specifically for USB-powered applications, providing optimized charging for devices powered by USB ports.

These alternative models offer similar functionality to the MAX1556ETB+T while catering to specific requirements or offering enhanced features.

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