MAX1655ESE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High Efficiency, Low Power Consumption
• Package: 16-Pin Narrow SOIC (Small Outline Integrated Circuit)
• Essence: Regulated Switch-Mode Battery Charger
• Packaging/Quantity: Tube/100 pieces

Specifications

• Input Voltage Range: 4.5V to 28V
• Charging Current: Up to 1.5A
• Charge Termination: Programmable Timer or Thermal Shutdown
• Preconditioning: Trickle Charge with Automatic Recharge
• Operating Temperature Range: -40°C to +85°C
• Protection Features: Overvoltage, Reverse Battery, and Short-Circuit Protection

Pin Configuration

The MAX1655ESE has a 16-pin narrow SOIC package with the following pin configuration:

1. VCC
2. GND
3. BAT
4. PROG
5. TIMER
6. THERM
7. STAT
8. CE
9. ISET
10. VREF
11. SENSE
12. COMP
13. FB
14. SS
15. SYNC
16. RT

Functional Features

• High charging efficiency due to regulated switch-mode operation.
• Low power consumption in standby mode.
• Programmable timer or thermal shutdown for charge termination.
• Trickle charge with automatic recharge for battery preconditioning.
• Overvoltage, reverse battery, and short-circuit protection.

Advantages and Disadvantages

Advantages

• High charging efficiency ensures faster charging times.
• Low power consumption reduces energy waste.
• Programmable charge termination provides flexibility.
• Trickle charge feature improves battery performance.
• Comprehensive protection features ensure safe operation.

Disadvantages

• Limited charging current of up to 1.5A may not be suitable for high-capacity batteries.
• Requires external components for complete functionality.

Working Principles

The MAX1655ESE is a regulated switch-mode battery charger that efficiently charges batteries while minimizing power consumption. It operates by converting the input voltage into a regulated output voltage suitable for charging the battery. The charge termination can be controlled either by a programmable timer or thermal shutdown, ensuring safe and optimal charging. The trickle charge feature helps condition the battery by providing a low-level continuous charge. The IC also incorporates various protection features to safeguard against overvoltage, reverse battery connection, and short-circuits.

Application Field Plans

The MAX1655ESE is commonly used in portable electronic devices such as smartphones, tablets, and portable media players. It is also suitable for applications where efficient and reliable battery charging is required, such as wireless communication devices, handheld instruments, and medical devices.

Alternative Models

• MAX1555ETB+: Similar specifications with a different package (6-pin Thin SOT23)
• MAX8903AETI+: Higher charging current capability (up to 2A) with additional features
• MCP73831T-2ATI/OT: Lower charging current capability (up to 500mA) with similar functionality

These alternative models provide options based on specific requirements and constraints.

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