MCP73861-I/MLG Microchip Technology, MCP73861-I/MLG Datasheet

IC CONTROLLER LI-ION 4.1V 16QFN

MCP73861-I/MLG

Manufacturer Part Number
MCP73861-I/MLG
Description
IC CONTROLLER LI-ION 4.1V 16QFN
Manufacturer
Microchip Technology
Datasheets

Specifications of MCP73861-I/MLG

Battery Type
Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
Operating Temperature
-40°C ~ 85°C
Function
Charge Management
Voltage - Supply
4.5 V ~ 12 V
Mounting Type
Surface Mount
Package / Case
16-QFN
Input Voltage
12V
Battery Charge Voltage
4.2V
Charge Current Max
1.2A
Battery Ic Case Style
QFN
No. Of Pins
16
No. Of Series Cells
1
Output Voltage
4.1 V
Output Current
1200 mA
Operating Supply Voltage
4.5 V to 12 V
Supply Current
0.53 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Uvlo Start Threshold
4.5 V
Uvlo Stop Threshold
4.4 V
Lead Free Status / RoHS Status
Request inventory verification / Request inventory verification
Lead Free Status / RoHS Status
Request inventory verification / Request inventory verification
Other names
MCP73861-I/MLG
MCP73861-I/MLGR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP73861-I/MLG
Manufacturer:
Microchip Technology
Quantity:
500
Part Number:
MCP73861-I/MLG
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Features
• Linear Charge Management Controllers
• High-Accuracy Preset Voltage Regulation: + 0.5%
• Four Selectable Voltage Regulation Options:
• 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
Applications
• Lithium-Ion/Lithium-Polymer Battery Chargers
• Personal Data Assistants (PDAs)
• Cellular Telephones
• Hand-Held Instruments
• Cradle Chargers
• Digital Cameras
• MP3 Players
Package Types
 2005 Microchip Technology Inc.
- Integrated Pass Transistor
- Integrated Current Sense
- Reverse-Blocking Protection
- 4.1V, 4.2V – MCP73861
- 8.2V, 8.4V – MCP73862
Advanced Single or Dual Cell, Fully Integrated Li-Ion /
16-Pin QFN
V
V
V
V
Li-Polymer Charge Management Controllers
DD1
DD2
SET
SS1
16-Pin SOIC (MCP73861 only)
1
2
3
4
16
5
MCP73861
MCP73862
15
6
14
7
13
8
12
10
11
9
V
V
V
V
BAT3
BAT2
BAT1
SS3
16-Pin SOIC
(MCP73861 only)
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
and 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-pin, 4 x 4 QFN package.
The MCP73861 is also offered in 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 is targeted at applicatioins utilizing
single-cell Lithium-Ion or Lithium-Polymer battery
packs, while the MCP73862 is targeted at 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°C to +85°C.
MCP73861/2
THREF
STAT2 1
STAT1
PROG
V
V
V
V
SET
DD1
DD2
SS1
2
4
5
6
7
8
3
MCP73861
16
15
14
13
12
11
10
9
EN
V
V
V
V
V
TIMER
THERM
DS21893B-page 1
SS2
BAT3
BAT2
BAT1
SS3

Related parts for MCP73861-I/MLG

MCP73861-I/MLG Summary of contents

Page 1

... QFN package. The MCP73861 is also offered in a 16-pin SOIC package. The MCP7386X provides a complete, fully- functional, stand-alone charge management solution with a minimum number of external components. ...

Page 2

... BAT3 4.7 µ SET BAT 14 6 THREF EN 6. THERM STAT1 7. TIMER STAT2 0 µF PROG SS MCP73861 REF Charge Current 90 k Control Amplifier + Voltage Control Amplifier – + – V REF Charge_OK Precondition Precon Control Constant Voltage/ Recharge Comp. V UVLO V (1.2V) REF Charge Control, ...

Page 3

... MCP73861/2 Units Conditions V MCP73861 V MCP73862 µA Disabled mA Operating V MCP73861 V MCP73862 V Low-to-High DD V MCP73861 V MCP73862 V High-to-Low DD V MCP73861 SET SS V MCP73861 SET DD V MCP73862 SET SS V MCP73862 SET (Typ) + 1V], DD REG I =10 mA OUT T = -5°C to +55°C A %/V ...

Page 4

... Units Conditions mA PROG = OPEN mA PROG = PROG = 1 =-5°C to +55° MCP73861 SET SS V MCP73861 SET DD V MCP73862 SET SS V MCP73862 SET DD V Low-to-High BAT mA PROG = OPEN mA PROG = PROG = 1 =-5°C to +55°C A ...

Page 5

... Sym Min Typ Max T -40 — + -40 — +125 J T -65 — +150 A — 37 — JA — 74 — JA MCP73861 (typ.) + 0.3V] to 12V, REG Conditions V Low-to-High DD V < > V BAT PTH BAT PTH I Rising to 90 OUT REG C = 0.1 µF TIMER = 0.1 µF TIMER C = 0.1 µF TIMER ...

Page 6

... FIGURE 2-6: Supply Voltage (V = +25°C, Constant-voltage mode. A MCP73861 SET 5.2V DD 100 1000 I (mA) OUT Supply Current ( OUT MCP73861 SET 1000 mA OUT 6.0 7.5 9.0 10.5 12.0 V (V) DD Supply Current ( MCP73861 SET OUT 6 ...

Page 7

... Ambient Temperature (T BAT 4.207 MCP73861 4.205 V I 4.203 4.201 4.199 4.197 4.195 4.193 10.5 12.0 FIGURE 2-11 vs. Ambient Temperature (T DD BAT 2.520 MCP73861 V I 2.515 THREF 2.510 2.505 2.500 FIGURE 2-12: Voltage (V THREF MCP73861/2 = +25°C, Constant-voltage mode (°C) A Supply Current (I ) vs. ...

Page 8

... MCP73861/2 TYPICAL PERFORMANCE CURVES (CONTINUED) NOTE: Unless otherwise indicated 8.407 MCP73862 8.405 SET 9.4V DD 8.403 8.401 8.399 8.397 8.395 8.393 10 100 I (mA) OUT FIGURE 2-13: Battery Regulation Voltage (V ) vs. Charge Current (I ). BAT OUT 8.407 8.405 MCP73862 8.403 SET 1000 mA OUT 8.401 8 ...

Page 9

... FIGURE 2-23 vs. Ambient Temperature (T DD BAT 2.550 2.546 2.542 2.538 2.534 2.530 FIGURE 2-24: Voltage (V THREF MCP73861/2 = +25°C, Constant-voltage mode (°C) A Supply Current ( MCP73862 SET OUT T (°C) A Battery Regulation Voltage ) ...

Page 10

... FIGURE 2-28: FIGURE 2-29: 0 -10 -20 -30 -40 -50 -60 -70 -80 100 1000 0.01 FIGURE 2-30: Rejection. = +25°C, Constant-voltage mode. A Line Transient Response. Load Transient Response. MCP73861 100 mVp 100 mA OUT X7R, Ceramic OUT 0 100 1000 Frequency (kHz) Power Supply Ripple  2005 Microchip Technology Inc. ...

Page 11

... FIGURE 2-31: Charge Current (I Programming Resistor (R ). PROG  2005 Microchip Technology Inc (Typ and T REG OUT 505 MCP73861/2 V 503 SET R PROG 501 499 497 495 493 0 ) vs. FIGURE 2-32: OUT Ambient Temperature (T MCP73861/2 = +25°C, Constant-voltage mode 1 (°C) A Charge Current (I ) vs. OUT ). A DS21893B-page 11 ...

Page 12

... V SS2 STAT2 16 2 STAT1 3.1 Voltage Regulation Selection (V ) SET MCP73861: Connect to V for 4.1V regulation SS voltage, connect to V for 4.2V regulation voltage. DD MCP73862: Connect to V for 8.2V regulation SS voltage, connect to V for 8.4V regulation voltage. DD 3.2 Battery Management Input Supply ( ...

Page 13

... V tied the MCP73861 and MCP73862 regulate to SS  2005 Microchip Technology Inc. 4.1V and 8.2V, respectively. With V MCP73861 and MCP73862 regulate to 4.2V and 8.4V, respectively. 4.4 Charge Cycle Completion and Automatic Re-Charge The MCP7386X monitors the charging current during the Constant-voltage regulation mode ...

Page 14

... MCP73861/2 FIGURE 4-2: Operational Flow Algorithm. DS21893B-page 14  2005 Microchip Technology Inc. ...

Page 15

... V V /4. THREF 5.1.4 CELL TEMPERATURE SENSOR INPUT (THERM) The MCP73861 and MCP73862 continuously monitor temperature by comparing the voltage between the THERM input and V with the upper and lower SS temperature thresholds. A negative or positive temper- ature coefficient, NTC or PTC thermistor and an exter- nal voltage-divider typically develop this voltage ...

Page 16

... When disabled, the device’s supply current is reduced to 0.17 µA, typically. Off Off On Off Off INPUT SET tied the MCP73861 SET SS , the MCP73861 and MCP73862 DD  2005 Microchip Technology Inc. ...

Page 17

... SET BAT3 DD1 BAT2 2 11 MCP73861 V V DD2 BAT1 SS1 SS3 PROG TIMER C R TIMER PROG Constant-Current Constant-Voltage Mode Mode Charge Voltage Charge Current Fast Charge Safety Timer Elapsed Time Termination Timer MCP73861/2 and 6-3 depict the + Single Lithium-Ion - Cell DS21893B-page 17 ...

Page 18

... MCP73861/2 Preconditioning Mode Regulation Voltage (V ) REG Regulation Current (I ) REG Transition Threshold (V ) PTH Precondition Current (I ) PREG Termination Current (I ) TERM Precondition Safety Timer FIGURE 6-3: Typical Charge Profile in Thermal Regulation. 6.1 Application Circuit Design Due to the low efficiency of linear charging, the most important factors are thermal design and cost, which ...

Page 19

... It is recommended to minimize voltage drops along the high current-carrying PCB traces. 2 pad of If the PCB layout is used as a heatsink, adding many vias in the heatsink pad can help conduct more heat to the backplane of the PCB, thus reducing the maximum junction temperature. . This SS MCP73861/2 and V pins. BAT SS DS21893B-page 19 ...

Page 20

... XXXXXXXX 3 10 YYWW NNN 16-Lead SOIC (150 mil) (MCP73861 only) XXXXXXXXXXXXX XXXXXXXXXXXXX YYWWNNN Legend: XX...X Customer specific information* YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘01’) NNN Alphanumeric traceability code Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line thus limiting the number of available characters for customer specific information ...

Page 21

... REF E .152 .157 .163 E2 .100 .106 .110 D .152 .157 .163 D2 .100 .106 .110 b .010 .012 .014 L .012 .016 .020 MCP73861 BOTTOM VIEW MILLIMETERS* MIN NOM MAX 16 0.65 BSC 0.80 0.90 1.00 0.00 0.02 0.05 0.20 REF 3.85 4.00 4.15 2.55 2.70 2 ...

Page 22

... MCP73861/2 16-Lead Plastic Small Outline (SL) – Narrow 150 mil Body (SOIC Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...

Page 23

... Examples: Examples MCP73861T-I/MLG: Tape and Reel, MCP73861T-I/MLG: Tape and Reel, Single Cell Controller Single-Cell Controller b) b) MCP73861-I/MLG: Single Cell Controller MCP73861-I/MLG: Single-Cell Controller a) a) MCP73862T-I/MLG: Tape and Reel, MCP73862T-I/MLG: Tape and Reel, Dual Series Controller Dual Series Controller b) b) MCP73862-I/MLG: Dual Series Controller ...

Page 24

... MCP73861/2 NOTES: DS21893B-page 24  2005 Microchip Technology Inc. ...

Page 25

... PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 26

... Fax: 65-6334-8850 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Taiwan - Hsinchu Tel: 886-3-572-9526 Fax: 886-3-572-6459  2005 Microchip Technology Inc. EUROPE Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Ballerup Tel: 45-4450-2828 Fax: 45-4485-2829 France - Massy Tel: 33-1-69-53-63-20 ...

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