Injoinic Battery Management ICs | BeiLuo Distributor

About Battery Management ICs

Comprehensive battery protection and management solutions for lithium-ion and lithium-polymer batteries.

As an authorized distributor of Injoinic, BeiLuo provides a comprehensive range of Battery Management ICs products. These products are widely used in industrial control, automotive electronics, consumer electronics, and communication equipment. We offer a complete product line with multiple series to meet various application requirements. All products are genuine and original, backed by professional technical support and comprehensive after-sales service.

Selection Guide: How to Choose the Right Battery Management ICs

Product List

4 products available

Part Number ↕	Cell Count ↕	Over-charge Voltage ↕	Over-discharge Voltage ↕	Over-current Threshold ↕	Standby Current ↕	Package ↕	Stock Status	Action
IP3005	Single cell (1S)	4.25V to 4.35V (typical)	2.30V to 2.50V (typical)	2A to 5A (configurable)	< 1μA	SOT23-6	In Stock	View Details
IP3008	2-3 series (2S-3S)	4.20V to 4.35V per cell	2.50V to 2.80V per cell	-	-	TSSOP-16	In Stock	View Details
IP3012	1S	-	-	-	<1uA	SOT-23-6	In Stock	View Details
IP3020	1S-4S	-	-	-	-	QFN-24	In Stock	View Details

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Frequently Asked Questions

What protection functions do Injoinic battery management ICs provide?

Injoinic battery protection ICs provide comprehensive safety functions: over-charge protection prevents battery over-voltage during charging

over-discharge protection prevents excessive discharge that could damage the battery

over-current protection limits discharge current to safe levels

short-circuit protection quickly disconnects the battery during fault conditions

and temperature protection monitors battery temperature for safe operation.

All Injoinic battery ICs include essential protections. Select based on cell count and current requirements.

How do I select the right protection IC for my battery pack?

Selecting the right protection IC involves several factors: cell count (single-cell or multi-cell), voltage thresholds (matching your battery chemistry), current ratings (exceeding your maximum load current), package size (fitting your PCB constraints), and additional features (balancing, temperature monitoring, etc.). Injoinic offers options for various configurations. Review datasheets for specific threshold voltages and timing parameters.

Match IC specifications to your battery and application requirements. Contact us for selection assistance.

What is cell balancing and when is it needed?

Cell balancing equalizes voltage across series-connected cells in multi-cell battery packs. Over time, cells can develop different charge levels, reducing pack capacity and potentially causing over-charge/discharge of individual cells. Balancing circuits redistribute charge to maintain equal cell voltages. It's essential for multi-cell packs (2S and above) to maximize capacity and ensure safety. Injoinic offers protection ICs with integrated balancing functions.

Use balancing for 2S and higher cell counts. Injoinic multi-cell ICs include balancing features.

What is the difference between protection IC and fuel gauge IC?

Protection ICs focus on safety, monitoring voltage, current, and temperature to disconnect the battery during fault conditions. Fuel gauge ICs estimate remaining battery capacity and provide state-of-charge information to the system. Some Injoinic ICs combine both functions, while others are dedicated to protection only. For complete battery management, you may need both functions.

Use protection ICs for safety. Add fuel gauge if accurate capacity reporting is needed.

How do I calculate the current sense resistor value?

Current sense resistor value is calculated based on protection threshold and resistor power rating. Typical values range from 1mΩ to 10mΩ. Lower resistance reduces power loss but requires more sensitive detection. The formula is: R = Vthreshold / Iprotection. Ensure the resistor power rating exceeds I²R losses at maximum current. Consider using 1% tolerance resistors for accurate protection.

Calculate based on protection current and threshold voltage. Use low-tolerance resistors for accuracy.