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MCP73853/55
USB Compatible Li-Ion/Li-Polymer
Charge Management Controllers
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)
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.
The MCP7385X devices provide complete, fully-
functional, charge management solutions, operating
with an input voltage range of 4.5V to 5.5V.
The MCP7385X devices are fully specified over the
ambient temperature range of -40°C to +85°C.
Package Types
MCP73853
Applications
4x4 QFN*
16 15 14 13
?
Lithium-Ion/Lithium-Polymer Battery Chargers
V SET 1
12 V BAT3
?
?
?
Personal Data Assistants (PDAs)
Cellular Telephones
Hand-Held Instruments
V DD1 2
V DD2 3
V SS1 4
EP
17
11 V BAT2
10 V BAT1
9 V SS3
?
Cradle Chargers
5
6
7
8
?
Digital Cameras
?
?
MP3 Players
Bluetooth Headsets
MCP73855
3x3 DFN*
?
USB Chargers
STAT1 1
V SET 2
V DD1 3
EP
11
10 EN
9 V BAT2
8 V BAT1
? 2004-2012 Microchip Technology Inc.
V SS1 4
PROG 5
7 V SS2
6 TIMER
DS21915B-page 1
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相关代理商/技术参数
MCP73855-I/MFG 功能描述:电池管理 2 CELL LI ION/POLY Lead Free Package 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
MCP73855-I/ML 制造商:Microchip Technology Inc 功能描述:
MCP73855IMF 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB Compatible Li-Ion/Li-Polymer Charge Management Controllers
MCP73855IML 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB Compatible Li-Ion/Li-Polymer Charge Management Controllers
MCP73855T 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB Compatible Li-Ion/Li-Polymer Charge Management Controllers
MCP73855T-I/MF 功能描述:电池管理 Sgl C Lthm-Ion/Plymr 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
MCP73855T-I/MFG 功能描述:电池管理 LINEAR CHG MGMT CONT Lead Free Package 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
MCP73855TIMF 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB Compatible Li-Ion/Li-Polymer Charge Management Controllers