CXDR7582 is an independent power meter chip suitable for single cell lithium-ion battery applications. This chip does not require complex firmware development support on the system side, and can achieve accurate battery capacity estimation, charge and discharge status monitoring, and multiple safety protection functions. Its core advantage lies in the use of mixed Coulomb counting and open circuit voltage measurement technology, combined with battery characteristic modeling, which can provide reliable battery data at all temperatures and throughout the entire life cycle
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[ CXDR7582 ]"
CXDR7582: High precision single cell lithium battery power meter chip, helping portable devices with intelligent power management
In today's increasingly popular devices such as smartphones, e-books, and portable instruments, the accuracy and reliability of battery management have become the key to product competitiveness. CXDR7582, as an independent power meter chip designed specifically for single lithium-ion batteries, integrates advanced GaugePack™ Algorithms and multiple circuit protection mechanisms, with high integration, low power consumption, and small packaging, have become an ideal choice for portable device battery management.
Chip Introduction
CXDR7582 is an independent power meter chip suitable for single cell lithium-ion battery applications. This chip does not require complex firmware development support on the system side, and can achieve accurate battery capacity estimation, charge and discharge status monitoring, and multiple safety protection functions. Its core advantage lies in the use of hybrid Coulomb counting and open circuit voltage measurement technology, combined with battery characteristic modeling, which can provide reliable battery data at all temperatures and throughout the entire life cycle.
Core functional features
1. High precision electricity monitoring
CXDR7582 has built-in dual 16 bitΣ -Δ ADC， Used for high-precision sampling of voltage, temperature, and current. Its GaugePack™ The algorithm can automatically compensate for the impact of factors such as temperature, aging, and self discharge on battery capacity, and can complete capacity learning without a complete charge discharge cycle, greatly improving system response speed and user experience.
2. Comprehensive security protection mechanism
The chip supports programmable voltage, current, and temperature protection thresholds, and has primary safety protection functions such as overvoltage, undervoltage, overcurrent, and overtemperature. It also outputs real-time charging and discharging protection status through ALTC and ALTD pins to ensure that the battery operates within a safe range.
3. Flexible communication and storage
Through a 2-wire communication interface that complies with the I2C standard, users can read battery status, configuration parameters, and access 96 byte non-volatile data flash. The chip supports standard commands, control commands, and extended commands to meet the customized needs of different application scenarios.
4. Multi mode low-power management
CXDR7582 supports four power consumption modes: NORMAL, SLEEP, FULL SLEEP, and HIBERNATE, which can automatically switch according to system load. In HIBERNATE mode, the chip power consumption is as low as 4μ A, greatly extending the standby time of portable devices.
5. Battery insertion detection and multifunctional pins
The chip has a battery insertion detection function and can achieve diversified outputs such as shutdown enable and charge/discharge alarm through SE/ALTD, ALTC and other pins, meeting the system's visualization and interaction requirements for battery status.
Typical application areas
• Smartphones and handheld computersAccurately display remaining battery life and usage time to enhance user trust.
• eBook ReaderOptimize power management and significantly extend standby and reading time.
• Digital cameras and camcordersEnsure stable battery output and safety during the filming process.
• Portable medical equipmentMeet the high reliability and precision requirements of power management.
Technological advantages and highlights
CXDR7582 not only has high-precision power estimation capability, but also integrates complete battery life cycle data recording function, covering key parameters such as maximum/minimum temperature, voltage, current, etc., providing data support for product development and fault analysis. Its compact DFN-12 package size is only 2.5mm x 4.0mm, compliant with RoHS standards and suitable for portable device designs with limited space.
About JTM-IC Jiataimu
JTM-IC is a company dedicated to high-performance analog and mixed signal chip design, committed to providing reliable power management, battery management, and sensor solutions for global customers. The company's products are renowned for their high precision, low power consumption, and high reliability, and are widely used in fields such as consumer electronics, industrial control, and communication equipment.
To learn more about CXDR7582 and other product information, please visit the official website:http://www.jtm-ic.com
