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TI BQ29209DRBR
Battery Management Vltg Prot w/Auto Cell Balance
Brands: TI
Mfr.Part #: BQ29209DRBR
Datasheet: BQ29209DRBR Datasheet (PDF)
Package/Case: VDFN-8
RoHS Status:
Stock Condition: 30000 pcs, New Original
Product Type: Battery Management
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 1 | $0.580 | $0.580 |
| 10 | $0.489 | $4.890 |
| 30 | $0.443 | $13.290 |
| 100 | $0.397 | $39.700 |
| 500 | $0.341 | $170.500 |
| 1000 | $0.327 | $327.000 |
In Stock:30000 PCS
BQ29209DRBR General Description
The bq2920x device is a secondary overvoltage protection IC for 2-series cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit and automatic cell imbalance correction.
The voltage of each cell in a 2-series cell battery pack is compared to a factory programmed internal reference voltage. If either cell reaches an overvoltage condition, the OUT pin changes from low to high state.
The bq2920x can perform automatic voltage-based cell imbalance correction. Balancing can start when the cell voltages are different by nominally 30 mV or more and stops when the difference is nominally 0 mV. Cell balancing is enabled and disabled by the CB_EN pin.
Features
- 2-Series Cell Secondary Protection
- Automatic Cell Imbalance Correction with External
Enable Control- ±30-mV Enable, 0-mV Disable Thresholds
Typical
- ±30-mV Enable, 0-mV Disable Thresholds
- External Capacitor-Controlled Delay Timer
- External Resistor-Controlled Cell Balance Current
- Low Power Consumption ICC < 3 µA Typical
(VCELL(ALL) < VPROTECT) - Internal Cell Balancing Handles Current
up to 15 mA - External Cell Balancing Mode Supported
- High-Accuracy Overvoltage Protection:
- ±25 mV with TA = 0°C to 60°C
- Fixed Overvoltage Protection Thresholds:
4.30 V, 4.35 V - Small 8L DRB Package
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Function | Protection | Number of series cells (min) | 2 |
| Number of series cells (max) | 2 | Features | Cell balancing, External delay capacitor, Overvoltage, Single pin output drive |
| Operating current (typ) (µA) | 3 | Rating | Catalog |
| Vin (max) (V) | 10 | Overvoltage protection | 4.3 |
| Operating temperature range (°C) | -40 to 85 | Battery overvoltage protection (min) (V) | 4.3 |
| Battery overvoltage protection (max) (V) | 4.3 |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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The BQ29209DRBR is a dual-voltage monitor and reset IC that provides overvoltage and undervoltage protection for dual supply voltages in applications such as automotive and industrial systems. It offers precise voltage monitoring, adjustable thresholds, and a watchdog timer for added protection.
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Equivalent
Some equivalent products of the BQ29209DRBR chip include the LTC2954, TPS3838 and MCP1810T. These devices are also voltage supervisors designed to monitor power supply voltages and ensure proper system operation. They provide reset signals when the voltage falls below a predetermined threshold, helping to protect sensitive components from damage. -
Features
1. Overvoltage and overcurrent protection 2. Integrated FETs for protection 3. Wide operating voltage range of 2.5V to 18V 4. Ultra-low quiescent current consumption 5. Fault flag signaling overvoltage or overcurrent conditions 6. Thermally enhanced packaging for improved thermal performance. -
Pinout
The BQ29209DRBR is a 10-pin IC with the following functions: pin 1 is a power supply input (VCC), pins 2, 3, and 4 are sense inputs for overvoltage and undervoltage, pins 5 and 6 are output enable and output flag, pin 7 is ground (GND), pin 8 is input power (VIN), pin 9 is output power (VOUT), and pin 10 is a latch reset input (RESET). -
Manufacturer
Texas Instruments is the manufacturer of the BQ29209DRBR. Texas Instruments is an American semiconductor company that designs and manufactures integrated circuits and semiconductors for a variety of industries, including automotive, industrial, and consumer electronics. -
Application Field
The BQ29209DRBR is typically used in battery management systems to protect and control the charging and discharging of lithium-ion and lithium-polymer batteries. It is commonly found in portable electronic devices, power tools, electric vehicles, and other battery-powered applications where reliable and efficient battery management is essential. -
Package
The BQ29209DRBR chip comes in a 16-pin SON package. It is a reel form component, and the size of the chip is 2.9mm x 3mm.
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