BQ78412DDWR
ActivePB-ACID BATTERY STATE-OF-CHARGE INDICATOR WITH RUN-TIME DISPLAY
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BQ78412DDWR
ActivePB-ACID BATTERY STATE-OF-CHARGE INDICATOR WITH RUN-TIME DISPLAY
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ78412DDWR | 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 | Tape & Reel (TR) | 2000 | $ 10.78 | |
| Texas Instruments | LARGE T&R | 1 | $ 15.89 | |
| 100 | $ 13.88 | |||
| 250 | $ 10.70 | |||
| 1000 | $ 9.57 | |||
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