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MCP73864 PDF даташит

Спецификация MCP73864 изготовлена ​​​​«Microchip Technology» и имеет функцию, называемую «Advanced Single or Dual Cell / Fully Integrated Li-Ion / Li-Polymer Charge Management Controllers».

Детали детали

Номер произв MCP73864
Описание Advanced Single or Dual Cell / Fully Integrated Li-Ion / Li-Polymer Charge Management Controllers
Производители Microchip Technology
логотип Microchip Technology логотип 

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MCP73864 Даташит, Описание, Даташиты
MCP73861/2/3/4
Advanced Single or Dual Cell, Fully Integrated 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%
• 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
Package Types
16-Pin QFN
16 15 14 13
VSET 1
12 VBAT3
VDD2 2
VDD2 3
EP 11 VBAT2
17 10 VBAT1
VSS1 4
9 VSS3
567 8
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 tempera-
ture 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 manage-
ment 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.
16-Pin SOIC
STAT2 1
STAT1 2
VSET 3
VDD1 4
VDD2 5
VSS1 6
PROG 7
THREF 8
16 EN
15 VSS2
14 VBAT3
13 VBAT2
12 VBAT1
11 VSS3
10 TIMER
9 THERM
2011 Microchip Technology Inc.
DS21893E-page 1









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MCP73864 Даташит, Описание, Даташиты
MCP73861/2/3/4
Typical Application
1.2A Lithium-Ion Battery Charger
5V
4.7µF
2, 3 VDD
VBAT3 12
1 VSET
VBAT 10, 11
4.7 µF
14
16
EN THREF 6
STAT1 THERM 7
6.19 k
15
5
STAT2
PROG
TIMER
VSS
8
4,
9,
7.32
13
k
0.1
µF
MCP73861/3
+
Single
Lithium-Ion
Cell
Note: Pin numbers shown are for QFN
package. Please refer to Section 6.0
“Applications” for details.
Functional Block Diagram
VDD1
VDD2
PROG
EN
THREF
THERM
TIMER
Direction
Control
VDD
VBAT1
VBAT2
G = 0.001
1 k
11 k
VREF
90 Charge Current
kControl Amplifier
+
Voltage Control
Amplifier
4 k
VREF
110 k
10 k
Charge
Termination
10 k
Comparator
+
IREG/12
UCOVLMOPARATOR
+
VUVLO
Precondition
Control
VREF
Charge_OK Precondition
Precon
Comp.
Constant-Voltage/
Recharge Comp.
Power-On
Delay
VREF
600 k
(1.65 M)
VBAT3
148.42 k
1.58 k
Values in ( )
reflect the
MCP73862/4
devices
300.04 k
100 k
50 k
50 k
Bias and
Reference
Generator
VVURVELFO(1.2V)
Temperature
+ Comparators
+
Drv Stat 1
IREG/12
Charge Control,
Charge Timers
Oscillator
And Status Logic Drv Stat 2
VSET
10.3 k
(8.58 k)
VVVSSSSSS123
STAT1
STAT2
Charge_OK
DS21893E-page 2
2011 Microchip Technology Inc.









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MCP73864 Даташит, Описание, Даташиты
MCP73861/2/3/4
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
VDDN ..............................................................................13.5V
VBATN, VSET, EN, STAT1, STAT2 w.r.t. VSS
.................................................................-0.3 to (VDD + 0.3)V
PROG, THREF, THERM, TIMER w.r.t. VSS..............-0.3 to 6V
Maximum Junction Temperature, TJ ............ Internally Limited
Storage temperature .....................................-65°C to +150°C
ESD protection on all pins:
Human Body Model (1.5 kin series with 100 pF)4 kV
Machine Model (200 pF, No series resistance) ...........300V
† Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all limits apply for VDD= [VREG(typ.) + 0.3V] to 12V,
TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG (typ.) + 1.0V]
Parameters
Sym
Min
Typ
Max
Unit
s
Conditions
Supply Input
Supply Voltage
Supply Current
UVLO Start Threshold
VDD
ISS
VSTART
4.5
8.7
4.25
8.45
UVLO Stop Threshold
VSTOP
4.20
8.40
Voltage Regulation (Constant-Voltage Mode)
Regulated Output Voltage
VREG
4.079
4.179
8.159
8.358
0.17
0.53
4.5
8.8
4.4
8.7
4.1
4.2
8.2
8.4
Line Regulation
Load Regulation
ΔVBAT/
VBAT)| /ΔVDD
ΔVBAT/VBAT|
Supply Ripple Attenuation
PSRR
0.025
0.01
60
42
Output Reverse-Leakage
Current
IDISCHARGE
Current Regulation (Fast Charge Constant-Current Mode)
Fast Charge Current
Regulation
IREG
85
1020
425
28
0.23
100
1200
500
12
12
4
4
4.65
9.05
4.55
8.95
4.121
4.221
8.241
8.442
0.25
0.25
1
V MCP73861/3
V MCP73862/4
µA Disabled
mA Operating
V MCP73861/3
V MCP73862/4
VDD Low-to-High
V MCP73861/3
V MCP73862/4
VDD High-to-Low
V MCP73861/3, VSET = VSS
V MCP73861/3,VSET = VDD
V MCP73862/4, VSET = VSS
V MCP73862/4, VSET = VDD
VDD = [VREG(typ.) + 1V],
IOUT = 10 mA
TA = -5°C to +55°C
%/V VDD = [VREG(typ.)+1V] to 12V
IOUT = 10 mA
% IOUT = 10 mA to 150 mA
VDD = [VREG(typ.)+1V]
dB IOUT = 10 mA, 10 Hz to 1 kHz
dB IOUT = 10 mA, 10 Hz to
10 kHz
dB IOUT = 10 mA, 10 Hz to 1 MHz
µA VDD < VBAT = VREG(typ.)
115
1380
575
mA PROG = OPEN
mA PROG = VSS
mA PROG = 1.6 k
TA= -5°C to +55°C
2011 Microchip Technology Inc.
DS21893E-page 3










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