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BQ294700DSGR
+NomenclatureIC BATT PROT LI-ION 2-4CEL 8WSON
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FabricantTexas Instruments
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Pièce fabricant #BQ294700DSGR
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Package WSON-8
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En stock2377
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Function | Battery Protection |
| Battery Chemistry | Lithium Ion |
| Number of Cells | 2 ~ 4 |
| Fault Protection | Over Voltage |
| Operating Temperature | -40°C ~ 110°C (TA) |
| Mounting Type | Surface Mount |
Présentation
Description
This IC is part of the BQ2947x family, which is known for its precision and reliability in safety applications. It supports a wide range of applications, including mobile devices, power tools, and portable electronics. The BQ294700DSGR typically operates over a range of temperatures, making it suitable for various environmental conditions. It is packaged in a compact form factor, which is beneficial for space-constrained applications. Overall, the BQ294700DSGR plays a crucial role in safeguarding battery packs from overvoltage, contributing to both safety and performance.
Equivalent
1. Seiko Instruments S-8244 Series - Offers similar overvoltage protection for rechargeable batteries.
2. Ricoh R5441 Series - Designed for overvoltage protection in Li-ion batteries.
3. Hycon Technology HY2213 - Provides comparable overvoltage protection features.
When selecting an equivalent, ensure compatibility with your specific application requirements.
Features
1. Overvoltage Protection: Monitors each cell in a battery pack to prevent overcharging by triggering a protection action if a cell's voltage exceeds a specified threshold.
2. Low Power Consumption: Consumes minimal power during both normal operation and in standby mode, extending the overall battery life.
3. Programmable Delay: Offers adjustable delay times for the overvoltage detection, allowing customization based on application requirements.
4. High Accuracy: Provides precise overvoltage detection, ensuring reliable protection for sensitive lithium-ion cells.
5. Compact Package: Available in a small, space-saving package suitable for compact battery pack designs.
These features make the BQ294700DSGR ideal for use in portable electronics, power tools, and other applications requiring efficient battery management and protection.
Pinout
The BQ294700DSGR comes in an 8-pin package. The pin functions are as follows:
1. VC1: Connection for Cell 1 voltage sense.
2. VC2: Connection for Cell 2 voltage sense.
3. VC3: Connection for Cell 3 voltage sense.
4. VC4: Connection for Cell 4 voltage sense.
5. OUT: Output pin to drive the gate of an external MOSFET.
6. GND: Ground connection.
7. VDD: Power supply input.
8. CT: Connection for a capacitor to set the delay time for overvoltage protection.
This IC is specifically designed to protect multi-cell lithium-ion battery packs by ensuring that individual cell voltages do not exceed safe operating limits.