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参数资料
| 型号： | MCP73832-4ADI/OT |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | PLASTIC, SC-74A, SOT-23, 5 PIN |
| 文件页数： | 1/24页 |
| 文件大小： | 786K |
| 代理商： | MCP73832-4ADI/OT |
2007 Microchip Technology Inc.
DS21984C-page 1
MCP73831/2
Features
Linear Charge Management Controller:
- Integrated Pass Transistor
- Integrated Current Sense
- Reverse Discharge Protection
High Accuracy Preset Voltage Regulation: + 0.75%
Four Voltage Regulation Options:
- 4.20V, 4.35V, 4.40V, 4.50V
Programmable Charge Current: 15 mA to 500 mA
Selectable Preconditioning:
- 10%, 20%, 40%, or Disable
Selectable End-of-Charge Control:
- 5%, 7.5%, 10%, or 20%
Charge Status Output
- Tri-State Output - MCP73831
- Open-Drain Output - MCP73832
Automatic Power-Down
Thermal Regulation
Temperature Range: -40°C to +85°C
Packaging:
- 8-Lead, 2 mm x 3 mm DFN
- 5-Lead, SOT-23
Applications
Lithium-Ion/Lithium-Polymer Battery Chargers
Personal Data Assistants
Cellular Telephones
Digital Cameras
MP3 Players
Bluetooth Headsets
USB Chargers
Typical Application
Description:
The MCP73831/2 devices are highly advanced linear
charge management controllers for use in space-lim-
ited, cost-sensitive applications. The MCP73831/2 are
available in an 8-Lead, 2 mm x 3 mm DFN package or
a 5-Lead, SOT-23 package. Along with their small
physical size, the low number of external components
required make the MCP73831/2 ideally suited for
portable applications. For applications charging from a
USB port, the MCP73831/2 adhere to all the
specifications governing the USB power bus.
The MCP73831/2 employ a constant-current/constant-
voltage charge algorithm with selectable precondition-
ing and charge termination. The constant voltage
regulation is fixed with four available options: 4.20V,
4.35V, 4.40V or 4.50V, to accommodate new, emerging
battery charging requirements. The constant current
value is set with one external resistor. The MCP73831/
2 devices limit the charge current based on die temper-
ature during high power or high ambient conditions.
This thermal regulation optimizes the charge cycle time
while maintaining device reliability.
Several options are available for the preconditioning
threshold, preconditioning current value, charge
termination value and automatic recharge threshold.
The preconditioning value and charge termination
value are set as a ratio, or percentage, of the
programmed constant current value. Preconditioning
can be disabled. Refer to Section 1.0 “Electrical
Characteristics” for available options and the “Prod-
uct Identification System” for standard options.
The MCP73831/2 devices are fully specified over the
ambient temperature range of -40°C to +85°C.
Package Types
STAT
VDD
VSS
PROG
VBAT
+
-
Single
Li-Ion
Cell
4
MCP73831
5
3
1
500 mA Li-Ion Battery Charger
2
VIN
4.7
μF
470
Ω
2k
Ω
4.7
μF
SOT-23-5
VBAT
VSS
VDD
1
2
3
5
4
PROG
STAT
8-Lead DFN
1
2
3
4
8
7
6
5
VDD
VBAT
VDD
NC
PROG
VSS
STAT
(2 mm x 3 mm)
Miniature Single-Cell, Fully Integrated Li-Ion,
Li-Polymer Charge Management Controllers
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP73832-4ATI/MC | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers |
| MCP73832-4ATI/OT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers |
| MCP73832-4DCI/MC | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers |
| MCP73832-4DCI/OT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Miniature Single-Cell, Fully Integrated Li-Ion, Li-Polymer Charge Management Controllers |
| MCP73832-5ACI/MC | 功能描述:电池管理 Li-Ion/Li-Poly Charg Mgnt 4.5V Vreg out RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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