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| 型号： | ADM00313 |
| 厂商： | Microchip Technology |
| 文件页数： | 1/30页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LI-ION CHRG MCP73830L |
| 设计资源： | MCP73830L Eval Bd Gerber |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电池充电器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MCP73830L |
| 主要属性： | 1 芯锂离子电池 |
| 次要属性： | LED 状态指示器 |
| 已供物品： | 板 |
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MCP73830/L
Single-Cell Li-Ion/Li-Polymer Battery Charge Management
Controllers in 2x2 TDFN
Features
? Complete Linear Charge Management Controller:
- Integrated Pass Transistor
- Integrated Current Sense
- Integrated Reverse Discharge Protection
? Constant Current/Constant Voltage Operation
? High Accuracy Preset Voltage Regulation:
- 4.20V + 0.75%
? Programmable Charge Current:
- MCP73830L: 20 mA – 200 mA
- MCP73830: 100 mA – 1000 mA
? Soft-start to avoid in-rush current
? Preconditioning:
- 10% and No Preconditioning
? Fixed Elapse Timer: 0 Hour or 4 Hours
? Fixed Preconditioning Timer: 1 Hour
? Automatic Recharge: No auto-recharge is also
available with selected options
? Automatic End-of-Charge Control Termination:
- 7.5% and 10%
? Automatic Power-Down when Input Power
Removed
? Undervoltage Lockout (UVLO)
? Chip/Charge Enable Pin (CE)
? Packaging:
- TDFN-6 (2x2 mm)
? Temperature Range: -40°C to +85°C
Applications
Description
The MCP73830/L are highly integrated, Li-Ion battery
charge management controllers for use in space-
limited applications. The MCP73830/L devices provide
specific charge algorithms for single-cell Li-Ion/Li-
Polymer batteries to achieve optimal capacity and
safety in the shortest charging time possible. Along
with its small physical size, the low number of external
components makes the MCP73830/L ideally suitable
for portable applications.
The MCP73830L employs a constant current/constant
voltage charge algorithm. The minimum 20 mA
regulated constant, fast-charge current enables the
design in small Li-Ion batteries and low-supply current
applications. The fast-charge, constant current value is
set with one external resistor from 20 mA to 200 mA.
The MCP73830/L allows up to 1000 mA charge current
for applications that require faster constant current.
The MCP73830/L provides a thermal foldback function
that limits the charge current based on die temperature
during high power or high ambient conditions. This
thermal regulation optimizes the charge cycle time
while maintaining device reliability.
The MCP73830/L is fully specified over the ambient
temperature range of -40°C to +85°C. The
MCP73830/L is available in a 6 lead, TDFN package.
Package Types (Top View)
MCP73830/L
2x2 TDFN *
?
?
?
?
Bluetooth Headsets
Portable Media Players
Rechargeable 3D Glasses
Toy and Gaming Controllers
V SS 1
STAT 2
V BAT 3
EP
7
6 PROG
5 CE
4 V DD
? 2011 Microchip Technology Inc.
DS25049B-page 1
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