Overview
The BQ27210DRKRG4 is a highly accurate, stand-alone single-cell Li-Ion and Li-Pol battery capacity monitoring and reporting IC, part of the bqJUNIOR series by Texas Instruments. This component is designed for space-limited, portable applications and provides comprehensive battery monitoring capabilities. It operates directly from single-cell Li-Ion and Li-Pol batteries and communicates via an I²C serial interface. The IC monitors battery capacity, compensating for factors such as battery age, temperature, self-discharge, and discharge rate to provide accurate time-to-empty information across various operating conditions.
Key Specifications
| Category | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Series | bqJUNIOR™ |
| Package | 10-VSON (3x4) Exposed Pad |
| Interface | I²C |
| Part Status | Active (NRND for new designs) |
| Mounting Type | Surface Mount |
| Number of Cells | 1 |
| Battery Chemistry | Lithium Ion/Polymer |
| Operating Temperature | -20°C to 70°C |
| Package Quantity | 3000 per reel |
| Dimensions | 3 mm x 4 mm x 0.88 mm |
Key Features
- Reports accurate time-to-empty at both measured and host-requested load values
- Reports available capacity compensated for discharge rate, temperature, and age
- End-of-discharge voltage compensated for discharge rate and temperature
- Automatic capacity reduction with age
- Reports temperature, voltage, and current
- High accuracy charge and discharge current integration with automatic offset calibration
- No user calibration required
- Programmable input/output port
- Internal user EEPROM configuration memory
- Uploadable coefficients allow host-side use with multiple pack characteristics
- Stable oscillator without external components
- Dynamic end-of-discharge detection delay for high-dynamic load environments
- Automatic sleep mode when communication lines are low
- Five low-power operating modes: Active (< 90 µA), Sleep (< 2.5 µA), Ship (< 2 µA), Hibernate (< 1.5 µA), Data Retention (< 20 nA)
Applications
- PDA
- Smart Phones
- MP3 Players
- Digital Cameras
- Internet Appliances
- Handheld Devices
Q & A
- What is the BQ27210DRKRG4 used for? The BQ27210DRKRG4 is used for monitoring and reporting the capacity of single-cell Li-Ion and Li-Pol batteries in portable applications.
- What interface does the BQ27210DRKRG4 use for communication? The BQ27210DRKRG4 uses an I²C serial interface for communication.
- What are the key features of the BQ27210DRKRG4? Key features include accurate time-to-empty reporting, compensation for discharge rate, temperature, and age, and high accuracy charge and discharge current integration.
- What is the operating temperature range of the BQ27210DRKRG4? The operating temperature range is -20°C to 70°C.
- Does the BQ27210DRKRG4 require user calibration? No, the BQ27210DRKRG4 does not require user calibration.
- What are the low-power operating modes of the BQ27210DRKRG4? The low-power operating modes include Active, Sleep, Ship, Hibernate, and Data Retention.
- What is the package type of the BQ27210DRKRG4? The package type is 10-VSON (3x4) Exposed Pad.
- What are some common applications of the BQ27210DRKRG4? Common applications include PDAs, smart phones, MP3 players, digital cameras, and handheld devices.
- Is the BQ27210DRKRG4 RoHS compliant? Yes, the BQ27210DRKRG4 is RoHS compliant.
- What is the lifecycle status of the BQ27210DRKRG4? The BQ27210DRKRG4 is marked as NRND (Not recommended for new designs).
