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MCP73862 Datasheet

  • MCP73862

  • Advanced Single or Dual Cell, Fully Integrated Li-Ion /Li-Po...

  • 34頁

  • Microchip   Microchip

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MCP73861/2
Advanced Single or Dual Cell, Fully Integrated Li-Ion /
Li-Polymer Charge Management Controllers
Features
鈥?Linear Charge Management Controllers
- Integrated Pass Transistor
- Integrated Current Sense
- Reverse-Blocking Protection
鈥?High-Accuracy Preset Voltage Regulation: + 0.5%
鈥?Four Selectable Voltage Regulation Options:
- 4.1V, 4.2V -
MCP73861
- 8.2V, 8.4V -
MCP73862
鈥?Programmable Charge Current: 1.2A Maximum
鈥?Programmable Safety Charge Timers
鈥?Preconditioning of Deeply Depleted Cells
鈥?Automatic End-of-Charge Control
鈥?Optional Continuous Cell Temperature Monitoring
鈥?Charge Status Output for Direct LED Drive
鈥?Fault Output for Direct LED Drive
鈥?Automatic Power-Down
鈥?Thermal Regulation
鈥?Temperature Range: -40擄C to 85擄C
鈥?Packaging: 16-Pin, 4 x 4 QFN
Description
The MCP7386X family of devices are highly advanced
linear charge management controllers for use in space-
limited, cost-sensitive applications. The MCP73861 and
MCP73862 combine high-accuracy constant voltage,
constant current regulation, cell preconditioning, cell
temperature monitoring, advanced safety timers, auto-
matic charge termination, internal current sensing,
reverse-blocking protection, and charge status and fault
indication in a space-saving 16-pin, 4 x 4 QFN package.
The MCP7386X provides a complete, fully-functional,
stand-alone charge management solution with a
minimum number of external components.
The MCP73861 is targeted for applicatioins utilizing
single-cell Lithium-Ion or Lithium-Polymer battery
packs, while the MCP73862 is targeted for dual series
cell Lithium-Ion or Lithium-Polymer battery packs. The
MCP73861 has two selectable voltage-regulation
options available (4.1V and 4.2V), for use with either
coke or graphite anodes, and operates with an input
voltage range of 4.5V to 12V. The MCP73862 has two
selectable voltage-regulation options available (8.2V
and 8.4V), for use with coke or graphite anodes, and
operates with an input voltage range of 8.7V to 12V.
The MCP7386X family of devices are fully specified
over the ambient temperature range of -40擄C to +85擄C.
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Lithium-Ion/Lithium-Polymer Battery Chargers
Personal Data Assistants
Cellular Telephones
Hand Held Instruments
Cradle Chargers
Digital Cameras
MP3 Players
Package Type
STAT1 STAT2
16
V
SET
V
DD1
V
DD2
V
SS1
1
2
3
4
5
6
7
8
15
EN
14
V
SS2
13
12 V
BAT3
11 V
BAT2
10 V
BAT1
9 V
SS3
MCP73861
MCP73862
PROG THREF THERM TIMER
錚?/div>
2004 Microchip Technology Inc.
DS21893A-page 1

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