BQ78350DBTR-R1
Battery Management
Technical Specifications
| Type | Description |
|---|---|
| Working Voltage V | 2.5 V |
| Interface | SMBus |
| Iq A | 0.001 A |
| 0V Battery Charge | Support |
| Type of Battery | LiFePO4 Battery;Lithium Battery |
| The Chip Type | Monitoring IC |
| Type | Description |
|---|---|
| Balance Current | - |
| Charge Current - Max | 320A |
| Operating Temp | -40°C ~ +85°C |
| Features | Constant current charging;Constant voltage charging;Trickle charging;Overcharge protection;Over-discharge protection;Overcurrent Protection;Short-Circuit Protection;Cell balancing;Battery temperature monitoring |
| Package / Case | TSSOP-30 |
Product Introduction
The bq78350-R1 lithium-ion and lithium iron phosphate battery management controller is paired with the bq769x0 series of analog front-end (AFE) protection devices to provide a complete battery management system (BMS) subsystem, which helps to accelerate product development and shorten the time to market. The bq78350-R1 controller and the bq769x0 AFE support 3-cell to 15-cell battery applications. The bq78350-R1 device provides an accurate fuel gauge and state-of-health (SoH) monitor, as well as battery balancing functionality and a full set of voltage, current, and temperature protection features. The bq78350-R1 device offers an optional LED or LCD display configuration for charge reporting. It can also transmit data through the SMBus 1.1 interface. Battery history and diagnostic data are also stored in the device's non-volatile memory and can be accessed through the same interface.
Features
- Compensated End-of-Discharge Voltage (CEDV) gas gauging algorithm
- SMBus host communication support
- Flexible configuration for 3 to 5 cell (bq76920), 6 to 10 cell (bq76930), and 9 to 15 cell (bq76940) Li-Ion and LiFePO₄ batteries
- Battery configurations up to 320Ahr
- Charge/discharge current up to 320A
- On-chip temperature sensor option
- External NTC thermistor support via companion AFE
- Comprehensive programmable protection features
- Voltage, current, and temperature
- System components
- Lifetime data logging
- CC-CV charging support, including pre-charge, charge inhibit, and charge suspend
- Optional resistor-programmable SMBus slave address for up to eight different bus addresses
- Drive up to one 5-segment LED or LCD display for state-of-charge indication
- SHA-1 authentication support
Applications
- - Light Electric Vehicles (LEV): eBike, eScooter, Pedelec, and pedal-assist bicycles - Power and garden tools - Backup batteries and UPS systems - Wireless base station backup systems - Telecom power systems - Handheld vacuum cleaners and robotic floor cleaners
Datasheet
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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