Használati útmutató Microchip MCP73862
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2004-2013 Microchip Technology Inc.DS21893F-page 1
MCP73861/2/3/4
Features:
•Linear Charge Management Controllers:
-Integrated Pass Transistor
-Integrated Current Sense
-Reverse-Blocking Protection
•High-Accuracy Preset Voltage Regulation: + 0.5%
•Four Selectable Voltage Regulation Options:
-4.1V, 4.2V – MCP73861/3
-8.2V, 8.4V – MCP73862/4
•Programmable Charge Current: 1.2A Maximum
•Programmable Safety Charge Timers
•Preconditioning of Deeply Depleted Cells
•Automatic End-of-Charge Control
•Optional Continuous Cell Temperature Monitoring
•Charge Status Output for Direct LED Drive
•Fault Output for Direct LED Drive
•Automatic Power-Down
•Thermal Regulation
•Temperature Range: -40°C to +85°C
•Packaging: 16-Pin, 4 x 4 QFN
16-Pin SOIC
Applications:
•Lithium-Ion/Lithium-Polymer Battery Chargers
•Personal Data Assistants (PDAs)
•Cellular Telephones
•Hand-Held Instruments
•Cradle Chargers
•Digital Cameras
•MP3 Players
Description:
The MCP7386X family of devices features highly
advanced linear charge management controllers for
use in space-limited, cost-sensitive applications. The
devices combine high-accuracy, constant voltage and
current regulation, cell preconditioning, cell
temperature monitoring, advanced safety timers,
automatic charge termination, internal current sensing,
reverse-blocking protection, charge status and fault
indication in either a space-saving 16-pin 4 x 4 QFN
package, or a 16-pin SOIC package. The MCP7386X
provides a complete, fully functional, stand-alone
charge management solution with a minimum number
of external components.
The MCP73861/3 is intended for applications utilizing
single-cell Lithium-Ion or Lithium-Polymer battery
packs, while the MCP73862/4 is intended for dual
series cell Lithium-Ion or Lithium-Polymer battery
packs. The MCP73861/3 has two selectable
voltage-regulation options available (4.1V and 4.2V),
for use with either coke or graphite anodes and operate
with an input voltage range of 4.5V to 12V. The
MCP73862/4 has two selectable voltage-regulation
options available (8.2V and 8.4V), for use with coke or
graphite anodes, and operate with an input voltage
range of 8.7V to 12V.
The MCP73861/2 and MCP73863/4 differ only in the
function of the charge status output (STAT1) when a
charge cycle has been completed. The MCP73861/2
flashes the output, while the MCP73863/4 turns the
output off. Refer to Section 5.2.1 “Charge Status
Outputs (STAT1, STAT2)”.
The MCP7386X family of devices are fully specified
over the ambient temperature range of -40°C to +85°C.
Advanced Single or Dual Cell, Fully Integrated Li-Ion/Li-Polymer
Charge Management Controllers
Termékspecifikációk
| Márka: | Microchip |
| Kategória: | nincs kategorizálva |
| Modell: | MCP73862 |
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