Manufacturer Part Number
BQ21040DBVR
Manufacturer
Texas Instruments
Introduction
The BQ21040DBVR is a compact, high-efficiency, lithium-ion battery charger designed for portable applications.
Product Features and Performance
Compact SOT-23-6 package
Support for 1-cell Lithium Ion or Lithium Polymer batteries
Programmable constant charging current
Integrated fault protection for over temperature, over voltage, and short circuit
Maximum charge current of 800mA
Battery pack voltage of 4.2V
Supports USB interface for charging
Can operate at supply voltages up to 6.45V
Capable of operating in temperatures ranging from 0°C to 125°C
Product Advantages
High integration level for space-constrained applications
Flexibility in charging current programming
Built-in protection features enhance safety
Simple interface through USB
High temperature operation suitable for various environments
Efficient power management for portable devices
Key Technical Parameters
Battery Chemistry: Lithium Ion/Polymer
Number of Cells: 1
Current - Charging: Programmable
Charge Current - Max: 800mA
Battery Pack Voltage: 4.2V
Voltage - Supply (Max): 6.45V
Operating Temperature Range: 0°C ~ 125°C
Quality and Safety Features
Over Temperature Protection
Over Voltage Protection
Short Circuit Protection
Compatibility
USB interface supports a wide range of portable electronic devices
Designed for single-cell lithium-ion or lithium-polymer batteries
Application Areas
Smartphones
Tablets
Wearable Technology
Portable Electronics
Product Lifecycle
Active Product Status
Not reported as nearing discontinuation
Replacements or upgrades may be available under base product number BQ21040
Several Key Reasons to Choose This Product
Highly compact design suitable for portable electronics
Customizable charge current for design flexibility
Comprehensive safety features to protect battery life and device integrity
Wide operating temperature suitable for various applications
Direct USB charging compatibility for ease of use
Proven quality and reliability from Texas Instruments