Overview
The BQ7692003PW is a battery monitor IC from Texas Instruments, part of the BQ76920 family. This device is designed to provide comprehensive monitoring and protection for lithium-ion (Li-ion) and lithium-iron phosphate battery packs. It is particularly suited for applications requiring robust and precise battery management, such as light electric vehicles, power tools, and energy storage systems. The BQ7692003PW features a robust analog front-end (AFE) and supports up to 5-series cells or typical 18-V packs, making it an ideal choice for various high-power systems.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Series | BQ76920 |
| Part Number | BQ7692003PW |
| Package Type | 20-TSSOP |
| Pin Count | 20 |
| Operating Temperature | -40°C to 85°C |
| Communication Interface | I2C |
| Number of Series Cells | Up to 5 |
| Protection Features | Over-current in Discharge (OCD), Over-voltage (OV), Short-circuit Discharge (SCD), Under-voltage (UV) |
| Typical Operating Current | 40 μA |
| Vin (Max) | 25 V |
| Special Features | Cell Balancing, Coulomb Counter, Integrated ADC, LDO, Low-Side NCH CHG/DSG FET Drive, Temperature Sense |
| RoHS Compliance | Yes |
Key Features
- Pure digital interface through I2C communication
- Internal ADC for measuring cell voltage, die temperature, and external thermistor
- Cell balancing and Coulomb counter for accurate state of charge estimation
- Integrated LDO and low-side NCH charge/discharge FET drivers
- Temperature sensing and monitoring
- Protection against over-current in discharge, over-voltage, short-circuit discharge, and under-voltage
- Low power consumption with sub-blocks that can be enabled or disabled and a SHIP mode for ultra-low power state
- Random cell connection tolerant
Applications
- Light electric vehicles (LEV): eBikes, eScooters, pedelec, and pedal-assist bicycles
- Power tools and garden tools
- Battery backup units (BBUS), energy storage systems (ESS), and uninterruptible power supply (UPS) systems
- Other industrial battery packs (≥10S)
Q & A
- What is the BQ7692003PW used for?
The BQ7692003PW is used for monitoring and protecting lithium-ion and lithium-iron phosphate battery packs in various applications.
- How many series cells does the BQ7692003PW support?
The BQ7692003PW supports up to 5-series cells.
- What communication interface does the BQ7692003PW use?
The BQ7692003PW uses an I2C communication interface.
- What are the key protection features of the BQ7692003PW?
The key protection features include over-current in discharge, over-voltage, short-circuit discharge, and under-voltage protection.
- Does the BQ7692003PW support cell balancing?
Yes, the BQ7692003PW supports cell balancing.
- What is the typical operating current of the BQ7692003PW?
The typical operating current is 40 μA.
- Is the BQ7692003PW RoHS compliant?
Yes, the BQ7692003PW is RoHS compliant.
- What is the maximum operating temperature of the BQ7692003PW?
The maximum operating temperature is 85°C.
- What types of battery chemistries can the BQ7692003PW manage?
The BQ7692003PW can manage Li-ion, Li-iron phosphate, and other battery chemistries.
- Does the BQ7692003PW have an integrated ADC?
Yes, the BQ7692003PW has an integrated ADC for measuring critical system parameters.
