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參數(shù)資料
| 型號： | MCP73828 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Single Cell Lithium-Ion Charge Management Controller with Charge Complete Indicator and Temperature Monitor |
| 中文描述： | 單節(jié)鋰離子電池充電管理控制器，充電完畢指示燈和溫度監(jiān)測器 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 499K |
| 代理商： | MCP73828 |
2002 Microchip Technology Inc.
DS21706A-page 1
M
MCP73828
Features
Linear Charge Management Controller for Single
Lithium-Ion Cells
High Accuracy Preset Voltage Regulation:
+1% (max)
Two Preset Voltage Regulation Options:
- 4.1V - MCP73828-4.1
- 4.2V - MCP73828-4.2
Programmable Charge Current
Automatic Cell Preconditioning of Deeply
Depleted Cells, Minimizing Heat Dissipation
During Initial Charge Cycle
Charge Complete Output CD10 for LED or
Microcontroller Interface
Continuous Temperature Monitoring
Automatic Power-Down when Input Power
Removed
Temperature Range: -20°C to +85°C
Packaging: 8-Pin MSOP
Applications
Single Cell Lithium-Ion Battery Chargers
Personal Data Assistants
Cellular Telephones
Hand Held Instruments
Cradle Chargers
Digital Cameras
Typical Application Circuit
Description
The MCP73828 is a linear charge management con-
troller for use in space-limited, cost sensitive applica-
tions. The MCP73828 combines high accuracy
constant voltage, controlled current regulation, cell pre-
conditioning, cell temperature monitoring, and charge
complete indication in a space saving 8-pin MSOP
package. The MCP73828 provides a stand-alone
charge management solution.
The MCP73828 charges the battery in three phases:
preconditioning, controlled current, and constant volt-
age. If the battery voltage is below the internal low-volt-
age threshold, the battery is preconditioned with a
foldback current. The preconditioning phase protects
the lithium-ion cell and minimizes heat dissipation.
Following the preconditioning phase, the MCP73828
enters the controlled current phase. The MCP73828
allows for design flexibility with a programmable charge
current set by an external sense resistor. The charge
current is ramped up, based on the cell voltage, from
the foldback current to the peak charge current estab-
lished by the sense resistor. This phase is maintained
until the battery reaches the charge-regulation voltage.
Then, the MCP73828 enters the final phase, constant
voltage. The accuracy of the voltage regulation is better
than ±1% over the entire operating temperature range
and supply voltage range. The MCP73828-4.1 is preset
to a regulation voltage of 4.1V, while the MCP73828-
4.2 is preset to 4.2V. The charge complete output,
CD10, indicates when the charge current has dimin-
ished to approximately 10% of the peak charge current
established by the sense resistor.
The MCP73828 operates with an input voltage range
from 4.5V to 5.5V. The MCP73828 is fully specified
over the ambient temperature range of -20°C to +85°C.
Package Type
+
-
1
2
5
7
8
MCP73828
6
V
DRV
V
BAT
3
4
Thermistor
GND
V
SNS
V
IN
SHDN
10 μF
100 k
100 m
V
IN
5V
Lithium-Ion
Cell
NDS8434
MA2Q705
10μF
Single
THERM
CD10
332
500 mA Lithium-Ion Battery Charger
MSOP
V
DRV
V
SNS
V
IN
V
BAT
SHDN 1
2
3
4
8
7
MCP73828
5
6
THERM
CD10
GND
Single Cell Lithium-Ion Charge Management Controller
with Charge Complete Indicator and Temperature Monitor
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MCP73828-4.1VUA | 功能描述:電池管理 W/ Charge Comp Mon RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MCP73828-4.1VUATR | 功能描述:電池管理 W/ Charge Comp Mon RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MCP73828-4.2VUA | 功能描述:電池管理 W/ Charge Comp Mon RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MCP73828-4.2VUATR | 功能描述:電池管理 W/ Charge Comp Mon RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MCP7382XEV | 功能描述:電源管理IC開發(fā)工具 MCP7382X Li-Ion Batt Charger RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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