BQ78412DDWT
ActivePB-ACID BATTERY STATE-OF-CHARGE INDICATOR WITH RUN-TIME DISPLAY 44-HTSSOP -40 TO 85
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BQ78412DDWT
ActivePB-ACID BATTERY STATE-OF-CHARGE INDICATOR WITH RUN-TIME DISPLAY 44-HTSSOP -40 TO 85
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ78412DDWT | BQ78412 Series |
|---|---|---|
| Battery Chemistry | Lead Acid | Lead Acid |
| Contents | - | Board(s) |
| Function | Battery Monitor | Battery Monitor, Battery Gauge |
| Interface | UART | UART |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells | 1 | 1 |
| Operating Temperature [Max] | 85 °C | 85 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Package / Case | 44-PowerTSSOP | 44-PowerTSSOP |
| Package / Case [x] | 6.2 mm | 6.2 mm |
| Package / Case [x] | 0.244 in | 0.244 in |
| Secondary Attributes | - | On-Board LEDs |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 44-HTSSOP | 44-HTSSOP |
| Type | - | Power Management |
| Utilized IC / Part | - | BQ78412 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| DigiKey | Bulk | 22 | $ 14.14 | |
| Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) | 1 | $ 20.67 | ||
| 250 | $ 13.79 | |||
| 500 | $ 13.47 | |||
| 750 | $ 13.30 | |||
| Digikey | Cut Tape (CT) | 1 | $ 20.76 | |
| Digi-Reel® | 1 | $ 20.76 | ||
| Tape & Reel (TR) | 250 | $ 15.32 | ||
| 500 | $ 14.34 | |||
| Mouser Electronics | N/A | 250 | $ 15.78 | |
| 500 | $ 15.46 | |||
| Rochester Electronics | N/A | 1 | $ 15.95 | |
| 25 | $ 15.63 | |||
| 100 | $ 14.99 | |||
| 500 | $ 14.36 | |||
| 1000 | $ 13.56 | |||
| Texas Instruments | SMALL T&R | 1 | $ 19.07 | |
| 100 | $ 16.65 | |||
| 250 | $ 12.84 | |||
| 1000 | $ 11.48 | |||
| Verical | N/A | 19 | $ 19.94 | |
| 19 | $ 19.94 | |||
| 25 | $ 19.54 | |||
| 25 | $ 19.54 | |||
| 100 | $ 18.74 | |||
| 100 | $ 18.74 | |||
| 500 | $ 17.95 | |||
| 500 | $ 17.95 | |||
| 1000 | $ 16.95 | |||
| 1000 | $ 16.95 | |||
BQ78412 Series
Pb-acid battery State-of-charge Indicator with Run-Time Display
| Part | Battery Chemistry | Interface | Supplier Device Package | Package / Case | Package / Case [x] | Package / Case [x] | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Function | Number of Cells | Contents | Supplied Contents | Utilized IC / Part | Secondary Attributes | Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ78412DDWR | Lead Acid | UART | 44-HTSSOP | 44-PowerTSSOP | 6.2 mm | 0.244 in | Surface Mount | 85 °C | -40 °C | Battery Monitor | 1 | |||||
Texas Instruments BQ78412DDWT | Lead Acid | UART | 44-HTSSOP | 44-PowerTSSOP | 6.2 mm | 0.244 in | Surface Mount | 85 °C | -40 °C | Battery Monitor | 1 | |||||
Texas Instruments BQ78412EVM | Battery Gauge | Board(s) | Board(s) | BQ78412 | On-Board LEDs | Power Management |
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