BQ78412DDWT
ActivePB-ACID BATTERY STATE-OF-CHARGE INDICATOR WITH RUN-TIME DISPLAY
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BQ78412DDWT
ActivePB-ACID BATTERY STATE-OF-CHARGE INDICATOR WITH RUN-TIME DISPLAY
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ78412DDWT |
|---|---|
| Battery Chemistry | Lead Acid |
| Function | Battery Monitor |
| Interface | UART |
| Mounting Type | Surface Mount |
| Number of Cells | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 6.2 mm |
| Package / Case [custom] | 44-PowerTSSOP |
| Package / Case [custom] | 0.244 in |
| Supplier Device Package | 44-HTSSOP |
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 | $ 20.76 | |
| Digi-Reel® | 1 | $ 20.76 | ||
| Tape & Reel (TR) | 250 | $ 15.32 | ||
| 500 | $ 14.34 | |||
| Texas Instruments | SMALL T&R | 1 | $ 19.07 | |
| 100 | $ 16.65 | |||
| 250 | $ 12.84 | |||
| 1000 | $ 11.48 | |||
Description
General part information
BQ78412 Series
The bq78412 Pb-Acid Battery State-of-Charge (SoC) Indicator with Run-Time Display is a complete stand-alone battery gas-gauge solution designed for single 12V Pb-Acid batteries. The bq78412 displays remaining Run-Time-To-Empty during discharge and Percent (%) capacity during charge using a 10-LED (light-emitting diode) bar graph.
The bq78412 monitors battery voltage, current, and ambient temperature to calculate state-of-charge and determine remaining runtime-to-empty. Measured values can be recorded and tracked for later retrieval for warranty purposes.
Programmable cell models allow the bq78412 to be customized to a variety of Pb-Acid formulations and capacities.
Documents
Technical documentation and resources