Overview
The Texas Instruments BQ40Z60RHBT is a Programmable Battery Management Unit (BMU) designed for the autonomous operation of 2-series to 4-series cell Li-Ion and Li-Polymer battery packs. This device integrates battery charging control, gas gauging, and protection features, making it a comprehensive solution for battery management. It supports internal communication between the fuel gauging processor and battery charger controller to optimize the charging profile based on external load conditions and power path source management. The BQ40Z60RHBT also includes various safety features such as overcurrent, short circuit, and overtemperature protection, ensuring reliable and secure battery operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | VQFN (RHB) | - |
| Pins | 32 | - |
| Package Size | 5 mm x 5 mm | mm |
| Operating Temperature Range | -40°C to 85°C | °C |
| Supply Voltage Range | 2.2 V to 26 V | V |
| Battery Capacity Range | 100 mAh to 29,000 mAh | mAh |
| Number of Series Cells | 2-4 Cells | - |
| Cell Chemistry | Li-Ion, Li-Polymer, LiFePO4 | - |
| Communication Interface | SMBus v2.0 | - |
| Gas Gauge Algorithm | Impedance Track (IT) | - |
Key Features
- Programmable battery charging control with support for JEITA/Enhanced Charging Modes
- High-resolution 16-bit integrator for Coulomb counter and 16-bit ADC for precision V, I, and T measurements
- Support for simultaneous CC and ADC sampling
- SHA-1 Hash Message Authentication Code (HMAC) responder for increased battery pack security
- Programmable current protection, overcurrent in discharge, short-circuit current in charge and discharge
- N-FET high-side protection FET drive and internal AFE watchdog
- Cell balancing support (external and internal)
- Internal temperature sensor and NTC thermistor measurement support
- Support for four LEDs and turbo mode
Applications
- Notebooks, Ultrabooks, Netbooks, Tablets, UMPCs
- Medical and test equipment
- Portable instrumentation
Q & A
- What is the BQ40Z60RHBT used for?
The BQ40Z60RHBT is a Programmable Battery Management Unit used for managing 2-series to 4-series cell Li-Ion and Li-Polymer battery packs.
- What are the key safety features of the BQ40Z60RHBT?
The device includes overcurrent, short circuit, and overtemperature protection, as well as FET protection and cell disconnection detection.
- What communication interface does the BQ40Z60RHBT support?
The BQ40Z60RHBT supports the SMBus v2.0 interface.
- What is the operating temperature range of the BQ40Z60RHBT?
The operating temperature range is -40°C to 85°C.
- What types of battery chemistry does the BQ40Z60RHBT support?
The device supports Li-Ion, Li-Polymer, and LiFePO4 battery chemistries.
- What is the package type and pin count of the BQ40Z60RHBT?
The package type is VQFN (RHB) with 32 pins.
- Does the BQ40Z60RHBT support cell balancing?
- What is the gas gauge algorithm used by the BQ40Z60RHBT?
The device uses the Impedance Track (IT) algorithm.
- Does the BQ40Z60RHBT have security features?
- What are some of the applications for the BQ40Z60RHBT?
The device is used in notebooks, ultrabooks, netbooks, tablets, UMPCs, medical and test equipment, and portable instrumentation.
