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AN-1041 参数 Datasheet PDF下载

AN-1041图片预览
型号: AN-1041
PDF下载: 下载PDF文件 查看货源
内容描述: 的EnerChip CC锂离子电池充电器,带有集成储能 [EnerChip CC Li-Ion Battery Charger with Integrated Energy Storage]
分类和应用: 电池
文件页数/大小: 3 页 / 292 K
品牌: CYMBET [ CYMBET CORPORATION ]
 浏览型号AN-1041的Datasheet PDF文件第2页浏览型号AN-1041的Datasheet PDF文件第3页  
AN-1041
Application Note
EnerChip™ CC Li-Ion Battery Charger with Integrated Energy Storage
Features
Power Manager with Charge Control
Capable of Charging Li-Ion Coin Cells
Integrated Thin Film Energy Storage
Built-in Energy Storage Protection
Temperature Compensated Charge Voltage
Operates Over a Wide Power Supply Range
Low Standby Power and Cutoff Current
Integrated Energy Storage: Low Self-Discharge
and Thousands of Recharge Cycles Available
Eco-Friendly, RoHS Compliant
Surface Mount - Lead-Free Reflow Tolerant
EnerChip CC: Battery Management
with Integrated Energy Storage
Description
The EnerChip CC product family consists of
devices having battery management circuitry
and rechargeable solid state energy storage - the
EnerChip - integrated in a single low profile, surface
mount package.
Each device functions as a backup power source
and supervisor for low power applications and has
the added capability to manage the charging and
discharge cutoff of Li-ion batteries such as LiR
coin cells. The EnerChip CC can deliver up to 1mA
charging current at 4.1V. It can charge up to 10
additional EnerChips connected in parallel.
During normal operation, the EnerChip CC derives
power from the main supply (2.5V to 5.5V) that
activates the internal charge pump, producing 4.1V
on the VCHG pin. This voltage not only charges
the internal EnerChips, but can also serve as a
charging source for small rechargeable Li-ion cells.
The EnerChip CC also has a discharge cutoff circuit
(3.0V typical) that prevents the battery from being
discharged too deeply - a condition that can destroy
Li-ion cells. When the primary power supply drops
below a user-defined threshold voltage, the EnerChip
CC monitors this event, routes the battery voltage to
VOUT, and signals the event by driving RESET/ low.
Applications
• Standby supply
for non-volatile SRAM, real-time
clocks, controllers, and supply supervisors.
• Wireless sensors and RFID tags
and other
powered, low duty cycle applications.
• Localized power source
to keep microcontrollers
and other devices alert in standby mode.
• Power bridging
to provide back-up power to the
system during exchange of main batteries.
• Consumer appliances
that have real-time
clocks.
• Business and industrial systems
such as
network routers, point-of-sale terminals, test
equipment, printers, and industrial controllers.
• Energy Harvesting
by coupling the EnerChip
with energy transducers such as solar panels.
Figure 1: Application Circuit Showing Connection of External Li-Ion Rechargeable Cell.
AN-1041 Rev A
©2010 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com
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