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MCP73855TIMF Datasheet(PDF) 2 Page - Microchip Technology

Part # MCP73855TIMF
Description  USB Compatible Li-Ion/Li-Polymer Charge Management Controllers
Download  24 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP73855TIMF Datasheet(HTML) 2 Page - Microchip Technology

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MCP73853/55
DS21915A-page 2
 2004 Microchip Technology Inc.
Typical Application
Functional Block Diagram
EN
STAT1
VSET
VDD1
VSS
TIMER
PROG
VBAT1
VBAT2
+
–
Single
Lithium-Ion
Cell
3
2
MCP73855
5
6
4, 7
9
8
10
1
5V
4.7 µF
400 mA Lithium-Ion Battery Charger
4.7 µF
0.1 µF
+
–
Charge
Termination
Comparator
Voltage Control
Amplifier
+
–
UVLO
COMPARATOR
VUVLO
+
-
Temperature
Comparators
+
-
Bias and
Reference
Generator
VUVLO
VREF(1.2V)
Power-On
Delay
VREF
VREF
Oscillator
IREG/12
Constant-voltage/
Recharge Comp.
Precondition
Control
Charge_OK
Precon
VDD
Charge Current
Control Amplifier
+
–
VREF
VREF
Precondition
Comp.
Charge Control,
Charge Timers,
and
Status Logic
Drv Stat 2
Drv Stat 1
Charge_OK
IREG/12
VDD1
THERM
EN
TIMER
STAT1
STAT2
VBAT3
VSS1
PROG
VSET
THREF
VBAT1
90
110 k
Ω
10 k
Ω
10 k
Ω
100 k
Ω
50 k
Ω
50 k
Ω
G = 0.001
11 k
Ω
3k
Ω
600 k
Ω
149 k
Ω
1.58 k
Ω
VDD2
VBAT2
300 k
Ω
10.3 k
Ω
4k
Ω
Direction
Control
k
Ω
VSS2
VSS3
MCP73853 ONLY
MCP73853 ONLY


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