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参数资料
| 型号： | MCP73838-CNI/MF |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封装： | 3 X 3 MM, 0.90 MM HEIGHT, PLASTIC, DFN-10 |
| 文件页数： | 1/30页 |
| 文件大小： | 816K |
| 代理商： | MCP73838-CNI/MF |
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2007 Microchip Technology Inc.
DS22071A-page 1
MCP73837/8
Features
High Accuracy Preset Voltage Regulation: + 0.5%
Available Voltage Regulation Options:
- 4.20V, 4.35V, 4.4V, or 4.5V
Complete Linear Charge Management Controller:
- Autonomous Power Source Selection
- Integrated Pass Transistors
- Integrated Current Sense
- Integrated Reverse Discharge Protection
Constant Current (CC) / Constant Voltage (CV)
Operation with Thermal Regulation
Selectable USB-Port Charge Current:
- Low: 1 Unit Load / High: 5 Unit Loads
Programmable AC-Adapter Charge Current:
- 15mA - 1000mA
Two Charge Status Outputs
Power-Good Monitor: MCP73837
Timer Enable: MCP73838
Automatic Recharge:
- Selectable Voltage Threshold
Automatic End-of-Charge Control:
- Selectable Charge Termination Current Ratio
- Selectable Safety Timer Period
Preconditioning of Deeply Depleted Cells - can be
disabled
Battery Cell Temperature Monitor
UVLO (Undervoltage Lockout)
Automatic Power-Down when Input Power is
Removed
Low-Dropout (LDO) Linear Regulator Mode
Numerous Selectable Options Available for a
Variety of Applications:
- Refer to Section 1.0 “Electrical
Characteristics” for Selectable Options”
- Refer to the “Product Identification
System” for Standard Options
Temperature Range: -40°C to 85°C
Packaging:
- 10-Lead 3 mm x 3 mm DFN
- 10-Lead MSOP*
* Consult Factory for MSOP Package
Availability.
Applications
Smart Phones and Personal Data Assistants
(PDA)
Portable Media Players(PMP)
Ultra Mobile Devices(UMD)
Digital Cameras
MP3 Players
Bluetooth Headsets
Handheld Medical Devices
AC/USB Dual Source Li-Ion Battery Chargers
Description
The MCP73837 and MCP73838 devices are fully
integrated linear Li-Ion / Li-Polymer battery chargers
with autonomous power source selection. Along with its
small physical size, the low number of external
components required makes the MCP73837/8 ideally
suitable for portable applications.
The MCP73837/8 automatically selects the USB-Port
or AC-Adapter as the power source for the system. For
the USB-Port powered systems, the MCP73837/8
specifically adheres to the current limits governed by
the USB specification. The host microcontroller can
select from two preset maximum charge current rates
of 100 mA (low power USB-port) or 500 mA (high
power USB-port). With an AC-Adapter providing power
to the system, an external resistor sets the magnitude
of the system or charge current up to a maximum of 1A.
The MCP73837/8 employs a constant current /
constant voltage charge algorithm with selectable
preconditioning and charge termination. The constant
voltage regulation is fixed with four available options:
4.20V, 4.35V, 4.40V, or 4.50V, to accommodated the
new emerging battery charging requirements. The
MCP73837/8 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 the device
reliability.
The MCP73837/8 are fully specified over the ambient
temperature range of -40°C to +85°C.
The MCP73837/8 devices are available in a 10-Lead,
3 mm x 3 mm, DFN package or in a 10-Lead MSOP
package.
Advanced Stand-Alone Li-Ion / Li-Polymer Battery Charge
Management Controller with Autonomous AC-Adapter or
USB-Port Source Selection
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP73838CNIUN | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Advanced Stand-Alone Li-Ion / Li-Polymer Battery Charge Management Controller with Autonomous AC-Adapter or USB-Port Source Selection |
| MCP73838-FCI/MF | 功能描述:电池管理 1A USB/DC Auto Swtch Li-Ion Chrgr TE Otpt 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 |
| MCP73838-FCI/UN | 功能描述:电池管理 1A USB/DC input auto-swich 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 |
| MCP73838-FCI/UN | 制造商:Microchip Technology Inc 功能描述:IC BATT CHRG LI-ION/LI-POLYMER 1A MS |
| MCP73838FCIMF | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Advanced Stand-Alone Li-Ion / Li-Polymer Battery Charge Management Controller with Autonomous AC-Adapter or USB-Port Source Selection |
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