Re: ресет на хп лаптопска батерия
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Next Generation Patented Impedance Track™ • Notebook PCs
Technology accurately Measures Available • Medical and Test Equipment
Charge in Li-Ion and Li-Polymer Batteries • Portable Instrumentation
• Better than 1% Error Over Lifetime of the
Battery
• Instant Accuracy – No Learning Cycle
The bq20z70 SBS-compliant gas gauge IC,Required incorporating patented Impedance Track™
• Supports the Smart Battery Specification technology, is designed for battery-pack or in-system
installation. The bq20z70 measures and maintains
SBS V1.1
an accurate record of available charge in Li-ion or
• Powerful 8-Bit RISC CPU With Ultra-Low
Li-polymer batteries using its integrated
Power Modes
high-performance analog peripherals. The bq20z70
• Works With the TI bq29330 Analog Front-End monitors capacity change, battery impedance,
(AFE) Protection IC to Provide Complete Pack open-circuit voltage, and other critical parameters of
Electronics Solution the battery pack, and reports the information to the
system host controller over a serial-communication
• Full Array of Programmable Protection
bus. It is designed to work with the bq29330 analog
Features
front-end (AFE) protection IC to maximize
– Voltage, Current and Temperature functionality and safety, and minimize component
count and cost in smart battery circuits.
• Fully Integrated High Accurate Clock
• Flexible Configuration for 2 to 4 Series Li-Ion The Impedance Track technology continuously
and Li-Polymer Cells analyzes the battery impedance, resulting in superior
gas-gauging accuracy. This enables remaining
• Integrated Field Programmable FLASH
capacity to be calculated with discharge rate,
Memory Eliminates the Need for External
temperature, and cell aging all accounted for during
Configuration Memory
each stage of every cycle.
• Smart Battery Charger Control Feature
• Two 16-Bit Delta-Sigma Converter AVAILABLE OPTIONS
– Accurate Voltage and Temperature PACKAGE
Measurements TA 20-PIN TSSOP (PW) 20-PIN TSSOP (PW)
Tube Tape & Reel
– Integrating Coloumb Counter for Charge
–40°C to
Flow bq20z70PW(1)
bq20z70PWR(2)
85°C
• Better Than 0.65 nVh of Resolution
• Self-Calibrating
• Supports SHA-1 Authentication