BQ29400DCT3
Active2ND-LEVEL OVERVOLTAGE PROTECTION FOR 2, 3, OR 4 CELL LIION & LIPOLY BATTERIES (2ND LEV PROTECTION)
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BQ29400DCT3
Active2ND-LEVEL OVERVOLTAGE PROTECTION FOR 2, 3, OR 4 CELL LIION & LIPOLY BATTERIES (2ND LEV PROTECTION)
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ29400DCT3 |
|---|---|
| Battery Chemistry | Lithium Ion |
| Function | Battery Protection |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 4 |
| Number of Cells [Min] | 2 cells |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -25 °C |
| Supplier Device Package | SM8 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.70 | |
| Digi-Reel® | 1 | $ 2.70 | ||
| Tape & Reel (TR) | 3000 | $ 1.24 | ||
| 6000 | $ 1.19 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.03 | |
| 100 | $ 1.68 | |||
| 250 | $ 1.21 | |||
| 1000 | $ 0.91 | |||
Description
General part information
BQ29400 Series
The bq29400, bq29400A, bq29401, and bq29405 are BiCMOS secondary protection ICs for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. They include a programmable delay circuit for over voltage detection time.
Each cell in a multiple cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2940x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.
The bq29400, bq29400A, bq29401, and bq29405 are BiCMOS secondary protection ICs for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. They include a programmable delay circuit for over voltage detection time.
Documents
Technical documentation and resources
