Introduction to Battery protector chip
Company Profile
Hainan Huanyu Technology Co., Ltd. is a high-tech enterprise providing one-stop customized chip solutions.Established on June 27, 2024, Hainan Huanyu Technology Co., Ltd. operates within a business scope that encompasses licensed activities related to semiconductor chips, electronic components, and similar products, delivering high-value, specialized solutions to our clients. We offer clients comprehensive, end-to-end services-ranging from chip specification definition and architectural design to the delivery of finished chips-and are dedicated to providing high-value, differentiated solutions.
Introduction to Battery protector chip
Battery protection chip-often referred to as battery protection ICs-are specialized semiconductor devices that integrate multiple protection functions. This prevents damage caused by abnormal operating conditions and averts safety hazards like fires or explosions.
Unlike conventional protection circuits built from discrete components, battery protection chips integrate functions such as voltage detection, current detection, logic control, and switch driving onto a single die. This integration reduces the size of the protection circuit, enhances the accuracy and response speed of protection actions, and lowers both peripheral circuit design complexity and production costs. Consequently, they have become essential core components in sectors such as consumer electronics, energy storage, and power battery systems.
Specific model of the Battery protector chip
The BQ2945xy series comprises secondary voltage monitors and protectors designed for lithium-ion battery pack systems. These chips independently monitor each battery cell for overvoltage conditions. If any cell within a two- or three-cell configuration experiences an overvoltage event, the device triggers an output after a fixed delay to protect the battery.
Key specifications include: overvoltage monitoring for 2- and 3-cell series configurations (secondary protection); a fixed, programmable delay timer; fixed OVP thresholds ranging from 3.85V to 4.6V; fixed OVP delay options of 4s or 6.5s; high-precision overvoltage protection (±10mV); low power consumption (ICC ≈ 1µA when VCELL(ALL) < VPROTECT); low leakage current (<100nA per cell input); and a compact 6-pin SON package.
Battery protector chip Specifications
The battery protector chip parameters are as follows:
|
Rating |
Catalog |
|
Number of series cells (max) |
3 |
|
Number of series cells (min) |
2, 3 |
|
Features |
Overvoltage, Single pin output drive |
|
Function |
Protection |
|
Operating current (typ) (µA) |
1 |
|
Vin (max) (V) |
25 |
|
Overvoltage protection |
4.38 |
|
Operating temperature range (°C) |
-40 to 85 |
|
Battery overvoltage protection (min) (V) |
4.38 |
|
Battery overvoltage protection (max) (V) |
4.38 |
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