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MCP73855 bảng dữ liệu(PDF) 1 Page - Microchip Technology

tên linh kiện MCP73855
Giải thích chi tiết về linh kiện  USB Compatible Li-Ion/Li-Polymer Charge Management Controllers
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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MCP73855 bảng dữ liệu(HTML) 1 Page - Microchip Technology

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 2004-2013 Microchip Technology Inc.
DS21915C-page 1
MCP73853/55
Features
• Linear Charge Management Controllers
- Integrated Pass Transistor
- Integrated Current Sense
- Reverse Blocking Protection
• High-Accuracy Preset Voltage Regulation: + 0.5%
• Two Selectable Voltage Regulation Options:
- 4.1V, 4.2V
• Programmable Charge Current
• USB Compatible Charge Current Settings
• Programmable Safety Charge Timers
• Preconditioning of Deeply Depleted Cells
• Automatic End-of-Charge Control
• Optional Continuous Cell Temperature Monitoring
MCP73853
• Charge Status Output for Direct LED Drive
• Fault Output for Direct LED Drive
MCP73853
• Automatic Power-Down
• Thermal Regulation
• Temperature Range: -40°C to +85°C
• Packaging:
- 16-Lead, 4x4 mm QFN (MCP73853)
- 10-Lead, 3x3 mm DFN (MCP73855)
Applications
• Lithium-Ion/Lithium-Polymer Battery Chargers
• Personal Data Assistants (PDAs)
• Cellular Telephones
• Hand-Held Instruments
• Cradle Chargers
• Digital Cameras
• MP3 Players
• Bluetooth Headsets
• USB Chargers
Description
The MCP7385X devices are highly-advanced, linear
charge management controllers, for use in space-
limited, cost-sensitive applications. The MCP73853
combines high-accuracy constant-voltage, constant-
current regulation, cell preconditioning, cell temperature
monitoring, advanced safety timers, automatic charge
termination, internal current sensing, reverse blocking
protection and charge status and fault indication in a
space-saving 16-lead, 4x4 QFN package.
The MCP73855 employs all the features of the
MCP73853, with the exception of the cell temperature
monitor and one status output. The MCP73855 is
offered in a space-saving 10-lead, 3x3 DFN package.
The MCP73853 and MCP73855 are designed
specifically for USB applications, adhering to all the
specifications governing the USB power bus.
The MCP7385X devices provide two selectable
voltage regulation options (4.1V or 4.2V) for use with
either coke or graphite anodes.
These devices have complete and fully-functional,
charge management solutions, operating with an input
voltage range of 4.5V to 5.5V. These are fully specified
over the ambient temperature range of -40°C to +85°C.
Package Types
2
MCP73853
4x4 QFN*
VDD2
VSS1
VSET
VBAT3
VBAT2
VBAT1
VSS3
VDD1
EP
16
1
15 14 13
3
4
12
11
10
9
56
7
8
17
MCP73855
3x3 DFN*
VDD1
VSET
VSS1
VBAT2
VBAT1
1
2
3
4
10
9
8
7 VSS2
EN
STAT1
EP
11
5
6
PROG
TIMER
*Exposed Pad (EP) is at VSS potential.
USB Compatible Li-Ion/Li-Polymer
Charge Management Controllers


Số phần tương tự - MCP73855

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