Overview
The BQ24610EVM is an evaluation module designed by Texas Instruments to demonstrate the capabilities of the bq2461x and bq2463x series of highly integrated Li-ion or Li-polymer switch-mode battery charge controllers. This module is particularly useful for evaluating the performance and features of these controllers in various battery charging applications. The bq2461x is tailored for Li-ion or Li-polymer batteries, while the bq2463x is specifically designed for Lithium Phosphate battery chemistries. The module offers a comprehensive set of features and functionalities that make it an ideal tool for developers and engineers working on battery charging systems.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit | Notes |
|---|---|---|---|---|---|
| Supply Voltage (VIN) | 5 | - | 28 | V | AC adapter input voltage for EVM, 33V for IC |
| Battery Voltage (VBAT) | 0 | - | 26 | V | User-programmable up to 26V |
| Supply Current (IAC) | 0 | - | 4.5 | A | Maximum input current from AC adapter |
| Charge Current (Ichrg) | 1 | - | 8 | A | Maximum charge current for EVM, 10A for IC |
| Operating Junction Temperature Range (TJ) | 0 | - | 125 | °C | - |
Key Features
- Evaluation Module for bq2461x/bq2463x: Designed to evaluate the performance of the bq2461x and bq2463x series of battery charge controllers.
- High Efficiency Synchronous Buck Charger: Offers high efficiency in charging batteries using a synchronous buck converter.
- User-Programmable Battery Voltage: Allows programming of the battery voltage up to 26V.
- AC Adapter Operating Range: Supports an AC adapter input voltage range of 5V to 28V.
- LED Indication for Control and Status Signals: Provides visual indicators for control and status signals.
- Test Points and Jumpers: Includes test points for key signals and jumpers for easy connection changes.
- Charge Phases and Monitoring: Charges batteries in three phases (preconditioning, constant current, and constant voltage) with charge status monitoring and termination features).
- Dynamic Power Management (DPM): Adjusts the charge current based on system load conditions to avoid AC adapter overload.
Applications
The BQ24610EVM is suitable for a variety of battery charging applications, particularly those involving Li-ion or Li-polymer batteries and Lithium Phosphate batteries. It is ideal for use in:
- Portable Electronics: Such as laptops, tablets, and smartphones that require efficient and reliable battery charging solutions.
- Electric Vehicles and E-Bikes: Where high-efficiency charging of multi-cell Li-ion batteries is crucial.
- Industrial Power Tools and Equipment: That use Li-ion or Li-polymer batteries and require robust charging systems.
- Renewable Energy Systems: Including solar and wind power systems that may use battery storage solutions.
Q & A
- What is the BQ24610EVM used for?
The BQ24610EVM is an evaluation module designed to evaluate the performance of the bq2461x and bq2463x series of battery charge controllers.
- What types of batteries does the BQ24610EVM support?
The BQ24610EVM supports Li-ion, Li-polymer, and Lithium Phosphate batteries.
- What is the input voltage range for the AC adapter?
The AC adapter input voltage range is 5V to 28V for the EVM, and up to 33V for the IC itself.
- What is the maximum charge current supported by the BQ24610EVM?
The maximum charge current supported by the BQ24610EVM is 8A, while the IC itself can support up to 10A.
- How does the BQ24610EVM charge batteries?
The BQ24610EVM charges batteries in three phases: preconditioning, constant current, and constant voltage, with charge status monitoring and termination features.
- What safety features does the BQ24610EVM include?
The BQ24610EVM includes a programmable charge timer for safety backup, automatic restart of the charge cycle if the battery voltage falls below an internal threshold, and a low-quiescent current sleep mode when the input voltage falls below the battery voltage.
- What is the purpose of the test points and jumpers on the BQ24610EVM?
The test points are available for testing key signals, and the jumpers allow for easy changes in connections, facilitating testing and development.
- How does the dynamic power management (DPM) function work?
The DPM function adjusts the charge current based on system load conditions to avoid AC adapter overload.
- Can the BQ24610EVM be used for charging more than 7-cell Li-ion batteries?
Yes, the BQ24610EVM can be configured to charge more than 7-cell Li-ion batteries by adjusting the feedback voltage divider.
- What are the operating temperature limits for the BQ24610EVM?
The operating junction temperature range for the BQ24610EVM is 0°C to 125°C.
