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

MCP73861-I/ML

Manufacturer Part Number

MCP73861-I/ML

Description

IC CONTROLLER LI-ION 4.5V 16QFN

Manufacturer

Microchip Technology

Datasheets

1.MCP73861-ISL.pdf (34 pages)

2.MCP73861-IML.pdf (26 pages)

Specifications of MCP73861-I/ML

Battery Type

Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)

Package / Case

16-QFN

Function

Charge Management

Voltage - Supply

4.5 V ~ 12 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Product

Charge Management

Output Voltage

4.221 V

Output Current

1200 mA

Operating Supply Voltage

4.5 V to 12 V

Supply Current

4 mA

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Mounting Style

SMD/SMT

Uvlo Start Threshold

4.65 V

Uvlo Stop Threshold

4.55 V

Lead Free Status / RoHS Status

Request inventory verification / Request inventory verification

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Request inventory verification / Request inventory verification

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MCP73861-I/MLG

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Company:

Meier Automation Equipment Co., Limited

Part Number:

MCP73861-I/MLG

Manufacturer:

MICROCHIP/微芯

Quantity:

20 000

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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

- Integrated Pass Transistor

- Integrated Current Sense

- Reverse-Blocking Protection

- 4.1V, 4.2V – MCP73861/3

- 8.2V, 8.4V – MCP73862/4

16-Pin QFN

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

16-Pin SOIC

SET

DD2

SS1

Li-Polymer Charge Management Controllers

15 14 13

BAT3

BAT2

BAT1

SS3

MCP73861/2/3/4

16-Pin SOIC

Description

The MCP7386X family of devices are 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 or 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 have 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

have

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 only difference between the MCP73861/2 and

MCP73863/4, respectively, is the function of the charge

status output (STAT1) when a charge cycle has been

completed. The MCP73861/2 flash the output, while

the MCP73863/4 turn 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.

two

selectable

THREF

STAT2

STAT1

PROG

SET

DD1

DD2

SS1

voltage-regulation

DS21893D-page 1

TIMER

THERM

SS2

BAT3

BAT2

BAT1

SS3

options

Related parts for MCP73861-I/ML

MCP73861-I/ML Summary of contents

Page 1

... The only difference between the MCP73861/2 and MCP73863/4, respectively, is the function of the charge status output (STAT1) when a charge cycle has been completed. The MCP73861/2 flash the output, while the MCP73863/4 turn the output off. Refer to Section 5.2.1 “ ...

Page 2

... Lithium-Ion Battery Charger BAT3 4.7µ SET BAT 14 THREF EN 16 THERM STAT1 15 TIMER STAT2 5 PROG V SS MCP73861/3 Functional Block Diagram Direction Control V DD1 V DD2 G = 0.001 1 kΩ k Ω PROG 11 kΩ Charge V 10 kΩ REF Termination Comparator Ω 110 /12 REG – ...

Page 3

... MCP73861/2/3/4 (typ.) + 0.3V] to 12V, Unit Conditions s V MCP73861/3 V MCP73862/4 µA Disabled mA Operating V MCP73861/3 V MCP73862/4 V Low-to-High DD V MCP73861/3 V MCP73862/4 V High-to-Low DD V MCP73861/ SET SS V MCP73861/3 SET DD V MCP73862/ SET SS V MCP73862/ SET (typ.) + 1V], DD REG OUT T = -5°C to +55°C A ...

Page 4

... Unit Conditions s mA PROG = OPEN mA PROG = PROG = 1.6 kΩ T =-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 = 1.6 kΩ T =-5°C to +55°C ...

Page 5

... Max T -40 — + -40 — +125 J T -65 — +150 A θ — 47 — JA θ — 86.1 — JA MCP73861/2/3/4 (typ.) + 0.3V] to 12V, Unit Conditions s °C °C (typ.) + 0.3V] to 12V, 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 µ ...

Page 6

Page 7

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

Page 8

... REG OUT 1.60 MCP73861/3 V 1.40 SET OUT +85°C 1.20 +25°C 1.00 -40°C 0.80 0.60 0.40 4.0 4.4 FIGURE 2-10: Ambient Temperature (T 4.207 MCP73861/3 4.205 V SET I OUT 4.203 4.201 4.199 4.197 4.195 4.193 10.5 12.0 FIGURE 2-11 vs. Ambient Temperature (T ). BAT DD 2.520 MCP73861/3 V ...

Page 9

... Supply Voltage (V) FIGURE 2-15: Battery Regulation Voltage (V ) vs. Supply Voltage (V ). BAT DD © 2008 Microchip Technology Inc. MCP73861/2/3 (typ and T REG OUT 1.00 MCP73862/4 V 0.90 SET V = 9.4V DD 0.80 0.70 0.60 0.50 0.40 ...

Page 10

... MCP73861/2/3/4 Typical Performance Curves (Continued) NOTE: Unless otherwise indicated 0.45 MCP73862/4 0. SET DD 0. 0.30 0.25 0.20 0.15 0.10 0.05 0.00 4.0 4.8 5.6 6.4 7.2 Battery Regulation Voltage (V) FIGURE 2-19: Output Leakage Current (I ) vs. Battery Regulation Voltage DISCHARGE (V ). BAT 2.570 MCP73862/4 ...

Page 11

... Frequency (kHz) FIGURE 2-27: Power Supply Ripple Rejection. © 2008 Microchip Technology Inc. MCP73861/2/3 (typ and T REG OUT BAT MCP73861 V I OUT C FIGURE 2-28: MCP73861 V 5. OUT BAT I OUT FIGURE 2-29: 0 -10 -20 -30 -40 -50 -60 -70 -80 100 1000 0.01 FIGURE 2-30: Rejection. = +25° ...

Page 12

... OPEN 4.8k 1.6k Programming Resistor (Ÿ) FIGURE 2-31: Charge Current (I Programming Resistor (R ). PROG DS21893D-page (typ and T REG OUT 505 MCP73861/2/3/4 V 503 SET R PROG 501 499 497 495 493 536 0 ) vs. FIGURE 2-32: OUT Ambient Temperature (T = +25°C, Constant-voltage mode. A ...

Page 13

... SS2 STAT2 16 2 STAT1 17 – EP 3.1 Voltage Regulation Selection (V ) SET MCP73861/3: Connect for 4.1V regulation SET SS voltage, connect to V for 4.2V regulation voltage. DD MCP73862/4: Connect for 8.2V regulation SET SS voltage, connect to V for 8.4V regulation voltage. DD 3.2 Battery Management Input Supply ...

Page 14

... MCP73861/2/3/4 3.9 Battery Voltage Sense ( voltage sense input. Connect to positive BAT3 terminal of battery. A precision internal resistor divider regulates the final voltage on this pin to V 3.10 Logic Enable (EN input to force charge termination, initiate charge, clear faults or disable automatic recharge. 3.11 Fault Status Output (STAT2) STAT2 is a current-limited, open-drain drive for direct connection to a LED for charge status indication ...

Page 15

... The thermal shutdown is a secondary safety feature in the event that there is a failure within the thermal regulation circuitry. . SET , the MCP73861/3 and SS , the MCP73861/3 and the elapsed timer has REG ), assuming all the qualification Figure 4-1 depicts the Minimum ...

Page 16

Page 17

... Therefore immune to fluctuations in the supply input (V ). The temperature-sensing circuit is DD removed from the system when V DD eliminating additional discharge of the battery pack. © 2008 Microchip Technology Inc. MCP73861/2/3/4 Figure 6-1 depicts a typical application circuit with connection of the THERM input. The resistor values of R and equations ...

Page 18

... When disabled, the device’s Off supply current is reduced to 0.17 µA, typically. Off (All Devices) On Off Off INPUT SET tied the MCP73861/ SET SS tied the MCP73861/3 SET DD © 2008 Microchip Technology Inc. ...

Page 19

... Typical Charge Profile. © 2008 Microchip Technology Inc. MCP73861/2/3/4 Figure 6-1 depicts a typical stand-alone application circuit, while accompanying charge profile in stand-alone STAT1 EN V SS2 SET BAT3 BAT2 DD1 2 11 MCP73861 V V DD2 BAT1 SS1 SS3 PROG TIMER R C PROG TIMER Constant-Current Constant-Voltage Mode ...

Page 20

... MCP73861/2/3/4 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 21

... The current-limited, open-drain outputs can be used to illuminate external LEDs. Refer to a summary of the state of the status outputs during a charge cycle. © 2008 Microchip Technology Inc. MCP73861/2/3/4 6.2 PCB Layout Issues For optimum voltage regulation, place the battery pack as close as possible to the device’ ...

Page 22

Page 23

... 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. © 2008 Microchip Technology Inc. MCP73861/2/3/4 Example: 73861 I/ML 0831 256 Example: MCP73861 I/SL 0831256 ) e 3 DS21893D-page 23 ...

Page 24

Page 25

... Microchip Technology Inc. MCP73861/2/3/4 DS21893D-page 25 ...

Page 26

Page 27

... Microchip Technology Inc. MCP73861/2/3/4 DS21893D-page 27 ...

Page 28

Page 29

... Added Appendix A: Revision History. 1. Updated QFN and SOIC package diagrams. Revision B (December 2004) The following is the list of modifications: 1. Added SOIC package throughout data sheet. Revision A (June 2004) • Original Release of this Document. © 2008 Microchip Technology Inc. MCP73861/2/3/4 DS21893D-page 29 ...

Page 30

Page 31

... Package ML = Plastic Quad Flat No Lead, 4x4 mm Body (QFN), 16-lead SL = Plastic Small Outline, 150 mm Body (SOIC), 16-lead © 2008 Microchip Technology Inc. MCP73861/2/3/4 /XX Examples: Package a) MCP73861-I/ML: b) MCP73861T-I/ML: Tape and Reel, c) MCP73861-I/SL: d) MCP73861T-I/SL: a) MCP73862-I/ML: b) MCP73862T-I/ML: Tape and Reel, c) MCP73862-I/SL: d) MCP73862T-I/SL: ...

Page 32

Page 33

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, WiperLock and ZENA 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 34

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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