Overview
The BQ40Z50RSMT, produced by Texas Instruments, is a fully integrated, single-chip solution designed for managing and protecting 1-series, 2-series, 3-series, and 4-series Li-Ion and Li-Polymer battery packs. This device incorporates Texas Instruments' patented Impedance Track™ technology, which accurately measures the available charge in these batteries. It provides a comprehensive set of features for gas gauging, protection, and authentication, making it an ideal choice for various battery-powered applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | VQFN (RSM) | 32 pins |
| Package Size | 4.00 mm × 4.00 mm | |
| Operating Temperature Range | -40°C to 85°C | |
| Input Voltage Range | 2.2 V to 26 V | |
| Interface | Two-wire SMBus v1.1 | |
| Protection Features | Voltage, Current, Temperature, Charge Timeout, CHG/DSG FETs | |
| Authentication | SHA-1 Authentication | |
| Thermal Resistance (RθJA) | 47.4 °C/W |
Key Features
- Next-generation patented Impedance Track™ technology for accurate charge measurement in Li-Ion and Li-Polymer batteries.
- High-side N-CH protection FET drive.
- Integrated cell balancing while charging or at rest.
- Full array of programmable protection features including voltage, current, temperature, and charge timeout.
- Sophisticated charge algorithms: JEITA, Enhanced Charging, Adaptive Charging, and Cell Balancing.
- Supports TURBO BOOST mode and Battery Trip Point (BTP).
- Diagnostic lifetime data monitor and black box recorder.
- LED display support.
- SHA-1 authentication with secure memory for authentication keys.
- Compact 32-lead QFN package.
Applications
- Notebook/Netbook PCs
- Medical and Test Equipment
- Portable Instrumentation
- Tablets
- Drones
- UPS/battery backup systems
- Handheld vacuum cleaners and vacuum robots
Q & A
- What is the BQ40Z50RSMT used for?
The BQ40Z50RSMT is used for managing and protecting 1-series, 2-series, 3-series, and 4-series Li-Ion and Li-Polymer battery packs.
- What technology does the BQ40Z50RSMT use for charge measurement?
The BQ40Z50RSMT uses Texas Instruments' patented Impedance Track™ technology for accurate charge measurement.
- What types of protection does the BQ40Z50RSMT offer?
The BQ40Z50RSMT offers software-based 1st- and 2nd-level safety protection against overvoltage, undervoltage, overcurrent, short-circuit current, overload, and overtemperature conditions.
- What interface does the BQ40Z50RSMT support?
The BQ40Z50RSMT supports a two-wire SMBus v1.1 interface.
- Does the BQ40Z50RSMT support authentication?
Yes, the BQ40Z50RSMT supports SHA-1 authentication with secure memory for authentication keys.
- What is the operating temperature range of the BQ40Z50RSMT?
The operating temperature range of the BQ40Z50RSMT is -40°C to 85°C.
- What is the package type and size of the BQ40Z50RSMT?
The BQ40Z50RSMT comes in a 32-lead VQFN (RSM) package with a size of 4.00 mm × 4.00 mm.
- Does the BQ40Z50RSMT support cell balancing?
Yes, the BQ40Z50RSMT supports integrated cell balancing while charging or at rest.
- What are some of the sophisticated charge algorithms supported by the BQ40Z50RSMT?
The BQ40Z50RSMT supports JEITA, Enhanced Charging, Adaptive Charging, and Cell Balancing algorithms.
- Does the BQ40Z50RSMT have diagnostic capabilities?
Yes, the BQ40Z50RSMT includes a diagnostic lifetime data monitor and black box recorder.
