STEVAL-ISA076V2 [STMICROELECTRONICS]
USB compatible battery charger demo board with integrated power switch for Li-Ion/Li-Polymer based on the L6924U; 基于对L6924U兼容USB电池充电器演示板与锂离子/锂聚合物集成电源开关
| 型号： | STEVAL-ISA076V2 |
| 厂家： | 
ST |
| 描述： | USB compatible battery charger demo board with integrated power switch for Li-Ion/Li-Polymer based on the L6924U |
| 文件： | 总4页 (文件大小：94K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STEVAL-ISA076V2
USB compatible battery charger demo board with integrated
power switch for Li-Ion/Li-Polymer based on the L6924U
Data brief
Features
■ Operating input voltage up to 12 V
■ Fully integrated solution with power MOSFET,
reverse blocking diode, sense resistor, and
thermal control
■ AC adapter or USB mode selection
■ Programmable charge current for both AC
adapter and USB power sources separately
■ Low power/high power selection in USB mode
■ Both linear and quasi-pulse operation
■ 4.2 V preset charge voltage ( 1 % accuracy)
■ Programmable termination current
STEVAL-ISA076V2
■ Programmable charge timer
■ Status outputs to drive LEDs or host processor
interface
■ Battery absence detection
■ Closed loop thermal control
■ NTC or PTC thermistor interface for battery
temperature monitoring and protection
■ RoHS compliant
Description
The STEVAL-ISA076V2 demonstration board is
based on the L6924U which is a fully monolithic
battery charger dedicated to single-cell Li-
Ion/Polymer battery packs. It is the ideal solution
for space-limited applications, such as PDAs,
handheld equipment, cellular phones, and digital
cameras.
When an external voltage regulated adapter or
USB port is used, the L6924U works in linear
mode, and charges the battery in a constant
current/constant voltage (CC/CV) profile.
Moreover, when a current-limited adapter is used,
the device can operate in Quasi-Pulse Mode,
dramatically reducing the power dissipation.
February 2011
Doc ID 18138 Rev 1
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For further information contact your local STMicroelectronics sales office.
www.st.com
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Schematic diagram
STEVAL-ISA076V2
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Schematic diagram
Figure 1.
Schematic
AM08551V1
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Doc ID 18138 Rev 1
STEVAL-ISA076V2
Revision history
2
Revision history
Table 1.
Date
25-Feb-2011
Document revision history
Revision
Changes
1
Initial release.
Doc ID 18138 Rev 1
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STEVAL-ISA076V2
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Doc ID 18138 Rev 1
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