Manufacturer Part Number
LM3420AM5X-4.2
Manufacturer
Texas Instruments
Introduction
The LM3420AM5X-4.2 is a dedicated power management integrated circuit designed for lithium-ion battery charging applications.
Product Features and Performance
Voltage regulation for single-cell lithium-ion batteries
Automatic recharge feature
Over-temperature protection
Low power consumption
High charging efficiency
Product Advantages
Precision end-of-charge voltage control
Designed for space-limited applications
Extended battery life with continuous voltage monitoring
Key Technical Parameters
Battery chemistry compatibility: Lithium Ion
Single cell operation
Target battery pack voltage: 4.2V
Maximum input voltage: 20V
Operating temperature range: -40°C to 85°C
Quality and Safety Features
Built-in temperature protection
Automatic recharge initiation
Compatibility
Tailored for single-cell lithium-ion battery applications
Application Areas
Portable electronic devices
Battery-powered equipment
Power tools
Consumer electronics
Product Lifecycle
Obsolete status
Consider alternative products or consult manufacturer for replacements or upgrades
Several Key Reasons to Choose This Product
High-precision voltage control for optimized battery charging
Compact SOT-23-5 package for space-sensitive designs
High operating temperature range for demanding environments
Texas Instruments' reputation for quality and reliability
Legacy product with proven track record in lithium-ion charging applications