MCP73861-I/ML_技术文档

MCP73861/2/3/4

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

Li-Polymer Charge Management Controllers

Features

Description

The MCP7386X family of devices are highly advanced

linear charge management controllers for use in space-

limited, cost-sensitive applications. The devices com-

bine high-accuracy, constant voltage and current regu-

lation, 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.

• 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

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 two selectable voltage-regulation options avail-

able (8.2V and 8.4V), for use with coke or graphite

anodes, and operate with an input voltage range of

8.7V to 12V.

• Thermal Regulation

• Temperature Range: -40°C to +85°C

• Packaging: 16-Pin, 4 x 4 QFN

16-Pin SOIC

Applications

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

• Lithium-Ion/Lithium-Polymer Battery Chargers

• Personal Data Assistants (PDAs)

• Cellular Telephones

• Hand-Held Instruments

• Cradle Chargers

Section 5.2.1

“Charge

Status

Outputs

• Digital Cameras

• MP3 Players

(STAT1,STAT2)”.

The MCP7386X family of devices are fully specified

over the ambient temperature range of -40°C to +85°C.

Package Types

16-Pin QFN

16-Pin SOIC

STAT2

STAT1

V_SET

1

2

3

4

5

6

7

8

EN

16

15

14

13

12

11

10

9

V_SS2

V_BAT3

V_BAT2

16 15 14 13

V_SET

V_DD1

V_DD2

V_SS1

12

11

10

9

1

2

3

4

V_BAT3

V_BAT2

MCP73861

MCP73862

MCP73863

MCP73864

V_DD1

V_DD2

V_SS1

V_BAT1

V_SS3

V_BAT1

V_SS3

PROG

TIMER

5

6

7

8

THREF

THERM

DS21893C-page 1

MCP73861/2/3/4

Typical Application

1.2A Lithium-Ion Battery Charger

2, 3

1

12

5V

V_DD

V_BAT3

4.7 µF

4.7µF

10, 11

6

V_SET

EN

V_BAT

14

16

15

5

THREF

THERM

TIMER

V_SS

6.19 kΩ

7

8

STAT1

STAT2

PROG

Single

Lithium-Ion

Cell

+

–

7.32 kΩ

0.1

µF

4, 9, 13

MCP73861/3

Functional Block Diagram

Direction

Control

V_BAT1

V_BAT2

V_DD1

V_DD2

V_DD

G = 0.001

4 kΩ

V_REF

Charge Current

Control Amplifier

90

kΩ

1 kΩ

PROG

+

Voltage Control

+

Amplifier

–

11 kΩ

–

Charge

Termination

Comparator

V_REF

110 kΩ

10 kΩ

V_REF

V_BAT3

+

–

Precondition

Comp.

Charge_OK

Precon

600 kΩ

(1.65 MΩ)

I

_REG/12

Precondition

Control

+

–

10 kΩ

U_VLO

COMPARATOR

+

–

148.42 kΩ

Values in ( )

reflect the

MCP73862/4

devices

Constant-Voltage/

Recharge Comp.

V_UVLO

+

–

1.58 kΩ

EN

Power-On

Delay

V_REF

300.04 kΩ

V_UVLO

V_REF(1.2V)

Bias and

Reference

Generator

V_SET

10.3 kΩ

(8.58 kΩ)

V_SS1

V_SS2

V_SS3

THREF

THERM

Temperature

Comparators

100 kΩ

50 kΩ

STAT1

+

Drv Stat 1

–

Charge Control,

Charge Timers

And Status Logic

I_REG/12

Oscillator

STAT2

+

–

Drv Stat 2

TIMER

Charge_OK

DS21893C-page 2

MCP73861/2/3/4

† 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.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

V

..............................................................................13.5V

DDN

V

, V , EN, STAT1, STAT2 w.r.t. V

SS

BATN

SET

.................................................................-0.3 to (V + 0.3)V

DD

PROG, THREF, THERM, TIMER w.r.t. V ..............-0.3 to 6V

SS

Maximum Junction Temperature, T ............Internally Limited

J

Storage temperature .....................................-65°C to +150°C

ESD protection on all pins:

Human Body Model (1.5 kΩ in series with 100 pF)....≥ 4 kV

Machine Model (200 pF, No series resistance) ...........300V

DC CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V

(typ.) + 0.3V] to 12V,

DD

REG

T = -40°C to +85°C. Typical values are at +25°C, V = [V (typ.) + 1.0V]

A

DD

REG

Unit

s

Parameters

Sym

Min

Typ

Max

Conditions

Supply Input

Supply Voltage

V

4.5

8.7

—

12

V

MCP73861/3

MCP73862/4

DD

Supply Current

I

0.17

0.53

4.5

8.8

4

µA Disabled

mA Operating

SS

—

4

UVLO Start Threshold

V

4.25

8.45

4.65

9.05

V

MCP73861/3

MCP73862/4

Low-to-High

START

V

DD

UVLO Stop Threshold

V

4.20

8.40

4.4

8.7

4.55

8.95

V

MCP73861/3

MCP73862/4

STOP

V

High-to-Low

DD

Voltage Regulation (Constant-Voltage Mode)

Regulated Output Voltage

V

4.079

4.179

8.159

8.358

4.1

4.2

8.2

8.4

4.121

4.221

8.241

8.442

V

MCP73861/3, V

MCP73862/4, V

= V

REG

SET

SS

DD

SS

DD

V

= [V

(typ.) + 1V],

REG

DD

I

= 10 mA

OUT

T = -5°C to +55°C

A

Line Regulation

|(ΔV

/V

)

—

0.025

0.01

0.25

%/V

%

V

I

= [V

= 10 mA

(typ.)+1V] to 12V

REG

BAT BAT

DD

| /ΔV

DD

OUT

Load Regulation

|ΔV

/V

|

I

= 10 mA to 150 mA

BAT BAT

OUT

V

= [V

(typ.)+1V]

REG

DD

OUT

Supply Ripple Attenuation

PSRR

—

60

42

—

dB

I

= 10 mA, 10 Hz to 1 kHz

I

= 10 mA, 10 Hz to

10 kHz

—

28

—

1

dB

µA

I

OUT

= 10 mA, 10 Hz to 1 MHz

Output Reverse-Leakage

Current

I

0.23

V

< V

= V

(typ.)

DISCHARGE

DD

BAT

REG

Current Regulation (Fast Charge Constant-Current Mode)

Fast Charge Current

Regulation

I

85

100

1200

500

115

1380

575

mA PROG = OPEN

mA PROG = V

REG

1020

425

SS

mA PROG = 1.6 kΩ

T = -5°C to +55°C

A

DS21893C-page 3

MCP73861/2/3/4

DC CHARACTERISTICS (Continued)

Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V

(typ.) + 0.3V] to 12V,

DD

REG

T = -40°C to +85°C. Typical values are at +25°C, V = [V (typ.) + 1.0V]

REG

A

DD

Unit

s

Parameters

Sym

Min

Typ

Max

Conditions

Preconditioning Current Regulation (Trickle Charge Constant-Current Mode)

Precondition Current

Regulation

I

5

10

120

50

15

180

75

mA PROG = OPEN

mA PROG = V

PREG

60

25

SS

mA PROG = 1.6 kΩ

T =-5°C to +55°C

A

Precondition Threshold

Voltage

V

2.70

2.75

5.40

5.50

2.80

2.85

5.60

5.70

2.90

2.95

5.80

5.90

V

MCP73861/3, V

MCP73862/4, V

= V

PTH

SET

SS

DD

SS

DD

V

Low-to-High

BAT

Charge Termination

Current

I

6

8.5

90

41

11

120

50

mA PROG = OPEN

mA PROG = V

TERM

70

32

SS

mA PROG = 1.6 kΩ

T =-5°C to +55°C

A

Automatic Recharge

Recharge Threshold

Voltage

V

-

V

-

V

-100 mV

V

MCP73861/3

MCP73862/4

RTH

REG

300 mV

200 mV

V

-

V

-

V

-

REG

600 mV

400 mV

200 mV

2.625

V

High-to-Low

BAT

Thermistor Reference

Output Voltage

V

2.475

2.55

V

T = 25°C,

A

THREF

V

= V

(typ.) + 1V,

DD

REG

I

= 0 mA

THREF

Thermistor Reference

Source Current

I

200

—

µA

THREF

Thermistor Reference Line |(ΔV

/V

0.1

0.25

%/V

V

= [V

(typ.) + 1V] to

REG

THREF

T

DD

Regulation

)|/

12V

HREF

ΔV

DD

Thermistor Reference Load |ΔV

Regulation

/V

0.01

0.10

%

I

= 0 mA to 0.20 mA

THREF

HREF|

T

THREF

Thermistor Comparator

Upper Trip Threshold

V

1.18

—

1.25

-50

0.62

80

1.32

—

V

T1

Upper Trip Point Hysteresis

Lower Trip Threshold

V

mV

V

T1HYS

V

0.59

—

0.66

—

T2

Lower Trip Point Hysteresis

Input Bias Current

V

mV

μA

T2HYS

I

—

2

BIAS

Status Indicator – STAT1, STAT2

Sink Current

I

4

8

12

400

1

mA

mV

μA

SINK

Low Output Voltage

Input Leakage Current

Enable Input

V

I

—

200

0.01

I

= 1 mA

OL

SINK

= 0 mA, V

= 12V

STAT1,2

LK

SINK

Input High Voltage Level

Input Low Voltage Level

Input Leakage Current

V

1.4

—

0.8

1

V

IH

V

IL

I

—

0.01

μA

V

= 12V

LK

ENABLE

DS21893C-page 4

MCP73861/2/3/4

DC CHARACTERISTICS (Continued)

Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V

(typ.) + 0.3V] to 12V,

DD

REG

T = -40°C to +85°C. Typical values are at +25°C, V = [V (typ.) + 1.0V]

REG

A

DD

Unit

s

Parameters

Sym

Min

Typ

Max

Conditions

Thermal Shutdown

Die Temperature

T

—

155

10

—

°C

SD

Die Temperature

Hysteresis

T

SDHYS

AC CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V

(typ.) + 0.3V] to 12V,

REG

DD

T = -40°C to +85°C. Typical values are at +25°C, V = [V (typ.) + 1.0V]

REG

A

DD

Parameters

Sym

Min

Typ

Max

Units

Conditions

Low-to-High

UVLO Start Delay

t

—

5

ms

V

START

DD

Current Regulation

Transition Time Out of

Preconditioning

—

1

ms

< V

to V

> V

BAT PTH

DELAY

BAT

PTH

Current Rise Time Out of

Preconditioning

t

I

Rising to 90% of I

OUT REG

RISE

Fast Charge Safety Timer

Period

t

1.1

1.5

1.9

Hours

C

= 0.1 µF

FAST

TIMER

Preconditioning Current Regulation

Preconditioning Charge Safety

Timer Period

t

45

60

3

75

Minutes

Hours

PRECON

Charge Termination

Elapsed Time Termination

Period

t

2.2

3.8

TERM

Status Indicators

Status Output turn-off

Status Output turn-on

t

—

200

µs

I

= 1 mA to 0 mA

= 0 mA to 1 mA

OFF

SINK

t

ON

TEMPERATURE SPECIFICATIONS

Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V

(typ.) + 0.3V] to 12V.

REG

DD

Typical values are at +25°C, V = [V

(typ.) + 1.0V]

DD

REG

Parameters

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Specified Temperature Range

Operating Temperature Range

Storage Temperature Range

Thermal Package Resistances

T

-40

-65

—

+85

+125

+150

°C

A

T

J

T

A

Thermal Resistance, 16-lead,

4 mm x 4 mm QFN

θ

—

37

74

—

°C/W

4-Layer JC51-7 Standard Board,

Natural Convection

JA

Thermal Resistance, 16-lead SOIC

4-Layer JC51-7 Standard Board,

Natural Convection

DS21893C-page 5

MCP73861/2/3/4

2.0

TYPICAL PERFORMANCE CURVES

Note:

The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

NOTE: Unless otherwise indicated, V_DD= [V_REG(typ.) + 1V], I_OUT= 10 mA and T_A= +25°C, Constant-voltage mode.

4.207

4.205

4.203

4.201

4.199

4.197

4.195

4.193

1.00

0.90

0.80

0.70

0.60

0.50

0.40

MCP73861/3

V_SET= V_DD

V_DD= 5.2V

MCP73861/3

V_SET= V_DD

V_DD= 5.2V

10

100

1000

10

100

1000

Charge Current (mA)

FIGURE 2-1:

Battery Regulation Voltage

FIGURE 2-4:

Supply Current (I_SS) vs.

(V_BAT) vs. Charge Current (I_OUT).

Charge Current (I_OUT).

4.40

4.30

4.20

4.10

4.00

3.90

3.80

1.60

1.40

1.20

1.00

0.80

0.60

0.40

MCP73861/3

_SET= V_DD

I_OUT= 1000 mA

MCP73861/3

V_SET= V_DD

I_OUT= 1000 mA

V

4.5

6.0

7.5

9.0

10.5

12.0

4.5

6.0

7.5

9.0

10.5

12.0

Supply Voltage (V)

FIGURE 2-2:

Battery Regulation Voltage

FIGURE 2-5:

Supply Current (I_SS) vs.

(V_BAT) vs. Supply Voltage (V_DD).

Supply Voltage (V_DD).

4.207

1.00

0.90

0.80

0.70

0.60

0.50

0.40

MCP73861/3

_SET= V_DD

I_OUT= 10 mA

V

_SET= V_DD

V

4.205

4.203

4.201

4.199

4.197

4.195

4.193

I_OUT= 10 mA

4.5

6.0

7.5

9.0

10.5

12.0

4.5

6.0

7.5

9.0

10.5

12.0

Supply Voltage (V)

FIGURE 2-3:

Battery Regulation Voltage

FIGURE 2-6:

Supply Current (I_SS) vs.

(V_BAT) vs. Supply Voltage (V_DD).

Supply Voltage (V_DD).

DS21893C-page 6

MCP73861/2/3/4

TYPICAL PERFORMANCE CURVES (CONTINUED)

NOTE: Unless otherwise indicated, V_DD= [V_REG(typ.) + 1V], I_OUT= 10 mA and T_A= +25°C, Constant-voltage mode.

0.45

0.40

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0.00

1.60

1.40

1.20

1.00

0.80

0.60

0.40

MCP73861/3

_SET= V_DD

V_DD= V_SS

MCP73861/3

V_SET= V_DD

I_OUT= 10 mA

V

+85°C

+25°C

-40°C

2.0

2.4

2.8

3.2

3.6

4.0

4.4

Ambient Temperature (°C)

Battery Regulation Voltage (V)

FIGURE 2-7:

Output Leakage Current

FIGURE 2-10:

Supply Current (I_SS) vs.

(I_DISCHARGE) vs. Battery Regulation Voltage

(V_BAT).

Ambient Temperature (T_A).

4.207

2.550

MCP73861/3

V_SET= V_DD

I_OUT= 10 mA

MCP73861/3

V_SET= V_DD

I_THREF= 100 µA

4.205

4.203

4.201

4.199

4.197

4.195

4.193

2.540

2.530

2.520

2.510

2.500

4.5

6.0

7.5

9.0

10.5

12.0

Ambient Temperature (°C)

Supply Voltage (V)

FIGURE 2-11:

Battery Regulation Voltage

FIGURE 2-8:

Thermistor Reference

(V_BAT) vs. Ambient Temperature (T_A).

Voltage (V_THREF) vs. Supply Voltage (V_DD).

2.520

MCP73861/3

V_SET= V_DD

I_THREF= 100 µA

MCP73861/3

V_SET= V_DD

2.515

2.510

2.505

2.500

2.510

2.505

2.500

0

25 50 75 100 125 150 175 200

Therm. Bias Current (µA)

Ambient Temperature (°C)

FIGURE 2-12:

Thermistor Reference

FIGURE 2-9:

Thermistor Reference

Voltage (V_THREF) vs. Ambient Temperature (T_A).

Voltage (V_THREF) vs. Thermistor Bias Current

(I_THREF).

DS21893C-page 7

MCP73861/2/3/4

TYPICAL PERFORMANCE CURVES (CONTINUED)

NOTE: Unless otherwise indicated, V_DD= [V_REG(typ.) + 1V], I_OUT= 10 mA and T_A= +25°C, Constant-voltage mode.

8.407

8.405

8.403

8.401

8.399

8.397

8.395

8.393

1.00

0.90

0.80

0.70

0.60

0.50

0.40

MCP73862/4

V_SET= V_DD

V_DD= 9.4V

MCP73862/4

V_SET= V_DD

V_DD= 9.4V

10

100

1000

10

100

1000

Charge Current (mA)

FIGURE 2-13:

Battery Regulation Voltage

FIGURE 2-16:

Supply Current (I_SS) vs.

(V_BAT) vs. Charge Current (I_OUT).

Charge Current (I_OUT).

8.407

1.60

MCP73862/4

V_SET= V_DD

8.405

1.40

MCP73862/4

V_SET= V_DD

I_OUT= 1000 mA

1.20

8.403

8.401

8.399

8.397

8.395

8.393

1.00

0.80

0.60

0.40

10.0

10.4

10.8

11.2

11.6

12.0

9.0

9.5

10.0

10.5

11.0

11.5

12.0

Supply Voltage (V)

FIGURE 2-14:

Battery Regulation Voltage

FIGURE 2-17:

Supply Current (I_SS) vs.

(V_BAT) vs. Supply Voltage (V_DD).

Supply Voltage (V_DD).

8.412

1.00

MCP73862/4

V_SET= V_DD

I_OUT= 10 mA

8.408

V_SET= V_DD

8.410

0.90

I_OUT= 10 mA

0.80

8.406

8.404

8.402

8.400

8.398

0.70

0.60

0.50

0.40

9.0

9.5

10.0

10.5

11.0

11.5

12.0

9.0

9.5

10.0

10.5 11.0

11.5

12.0

Supply Voltage (V)

FIGURE 2-15:

Battery Regulation Voltage

FIGURE 2-18:

Supply Current (I_SS) vs.

(V_BAT) vs. Supply Voltage (V_DD).

Supply Voltage (V_DD).

DS21893C-page 8

MCP73861/2/3/4

TYPICAL PERFORMANCE CURVES (CONTINUED)

NOTE: Unless otherwise indicated, V_DD= [V_REG(typ.) + 1V], I_OUT= 10 mA and T_A= +25°C, Constant-voltage mode.

0.45

0.40

1.60

1.40

1.20

1.00

0.80

0.60

0.40

MCP73862/4

V_SET= V_DD

I_OUT= 10 mA

MCP73862/4

V_SET= V_DD

+85°C

0.35 V_DD= V_SS

0.30

+25°C

-40°C

0.25

0.20

0.15

0.10

0.05

0.00

4.0

4.8

5.6

6.4

7.2

8.0

8.8

Ambient Temperature (°C)

Battery Regulation Voltage (V)

FIGURE 2-19:

Output Leakage Current

FIGURE 2-22:

Supply Current (I_SS) vs.

(I_DISCHARGE) vs. Battery Regulation Voltage

(V_BAT).

Ambient Temperature (T_A).

8.414

8.410

8.406

8.402

8.398

8.394

8.390

8.386

2.570

MCP73862/4

V_SET= V_DD

I_OUT= 10 mA

MCP73862/4

V_SET= V_DD

I_THREF= 100 µA

2.560

2.550

2.540

2.530

9.0

9.5

10.0

10.5

11.0

11.5

12.0

Ambient Temperature (°C)

Supply Voltage (V)

FIGURE 2-23:

Battery Regulation Voltage

FIGURE 2-20:

Thermistor Reference

(V_BAT) vs. Ambient Temperature (T_A).

Voltage (V_THREF) vs. Supply Voltage (V_DD).

2.550

MCP73862/4

V_SET= V_DD

I_THREF= 100 µA

V_SET= V_DD

2.548

2.546

2.542

2.538

2.534

2.530

2.546

2.544

2.542

2.540

0

25

50

75 100 125 150 175 200

Thermistor Bias Current (µA)

Ambient Temperature (°C)

FIGURE 2-24:

Thermistor Reference

FIGURE 2-21:

Thermistor Reference

Voltage (V_THREF) vs. Ambient Temperature (T_A).

Voltage (V_THREF) vs. Thermistor Bias Current

(I_THREF).

DS21893C-page 9

MCP73861/2/3/4

TYPICAL PERFORMANCE CURVES (CONTINUED)

NOTE: Unless otherwise indicated, V_DD= [V_REG(typ.) + 1V], I_OUT= 10 mA and T_A= +25°C, Constant-voltage mode.

V_DD

V_BAT

MCP73861

V

I

Stepped from 5.2V to 6.2V

= 500 mA

V

I

Stepped from 5.2V to 6.2V

= 10 mA

DD

OUT

C

= 10 µF, X7R, Ceramic

C

= 10 µF, X7R, Ceramic

OUT

FIGURE 2-25:

Line Transient Response.

FIGURE 2-28:

Line Transient Response.

MCP73861

V

5.2V

V

5.2V

DD

C

= 10 µF, X7R, Ceramic

C

= 10 µF, X7R, Ceramic

V_BAT

OUT

V_BAT

100 mA

10 mA

500 mA

10 mA

I_OUT

FIGURE 2-26:

Load Transient Response.

FIGURE 2-29:

Load Transient Response.

0

-10

-20

-30

-40

-50

-60

-70

0

MCP73861

-10 V_DD= 5.2V

V

_AC= 100 mVp-p

-20

I_OUT= 10 mA

-30 C_OUT= 10 μF, Ceramic

-40

-50

-60

-70

-80

MCP73861

V_DD= 5.2V

V_AC= 100 mVp-p

I_OUT= 100 mA

C_OUT= 10 μF, X7R, Ceramic

-80

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Frequency (kHz)

FIGURE 2-27:

Power Supply Ripple

FIGURE 2-30:

Power Supply Ripple

Rejection.

DS21893C-page 10

MCP73861/2/3/4

TYPICAL PERFORMANCE CURVES (CONTINUED)

NOTE: Unless otherwise indicated, V_DD= [V_REG(typ.) + 1V], I_OUT= 10 mA and T_A= +25°C, Constant-voltage mode.

1200

1000

800

600

400

200

0

505

503

501

499

497

495

493

MCP73861/2/3/4

_SET= V_DD

MCP73861/2/3/4

V_SET= V_DD

V

R_PROG= 1.6 k:

OPEN

4.8k

1.6k

536

0

Ambient Temperature (°C)

Programming Resistor (: )

FIGURE 2-31:

Charge Current (I_OUT) vs.

FIGURE 2-32:

Charge Current (I_OUT) vs.

Programming Resistor (R_PROG).

Ambient Temperature (T_A).

DS21893C-page 11

MCP73861/2/3/4

3.0

PIN DESCRIPTION

The descriptions of the pins are listed in Table 3-1.

TABLE 3-1:

Pin No.

PIN FUNCTION TABLES

Symbol

Function

QFN

SOIC

1

2

3

4

V

Voltage Regulation Selection

Battery Management Input Supply

Battery Management 0V Reference

Current Regulation Set

SET

DD1

DD2

SS1

3

5

4

6

5

7

PROG

THREF

THERM

TIMER

6

8

Cell Temperature Sensor Bias

Cell Temperature Sensor Input

Timer Set

7

9

8

10

11

12

13

14

15

16

1

9

V

Battery Management 0V Reference

Battery Charge Control Output

Battery Voltage Sense

SS3

10

11

12

13

14

15

16

V

BAT1

BAT2

BAT3

V

Battery Management 0V Reference

Logic Enable

SS2

EN

STAT2

STAT1

Fault Status Output

2

Charge Status Output

3.1

Voltage Regulation Selection

(V

3.7

Timer Set

)

All safety timers are scaled by C_TIMER/0.1 µF.

SET

MCP73861/3: Connect V_SETto V_SSfor 4.1V regulation

voltage, connect to V_DDfor 4.2V regulation voltage.

MCP73862/4: Connect V_SETto V_SSfor 8.2V regulation

voltage, connect to V_DDfor 8.4V regulation voltage.

3.8

Battery Charge Control Output

(V , V

)

BAT2

BAT1

Connect to positive terminal of battery. Drain terminal

of internal P-channel MOSFET pass transistor. Bypass

to V_SSwith a minimum of 4.7 µF to ensure loop stability

when the battery is disconnected.

3.2

Battery Management Input Supply

(V , V

)

DD1

DD2

A supply voltage of [V_REG(typ.) + 0.3V] to 12V is

recommended. Bypass to V_SSwith a minimum of

4.7 µF.

3.9

Battery Voltage Sense (V

)

BAT3

V_BAT3is a voltage sense input. Connect to positive

terminal of battery. A precision internal resistor divider

regulates the final voltage on this pin to V_REG

3.3

Battery Management 0V Reference

(V , V , V

.

)

SS3

SS1

SS2

3.10 Logic Enable (EN)

Connect to negative terminal of battery and input

supply.

EN is an input to force charge termination, initiate

charge, clear faults or disable automatic recharge.

3.4

Current Regulation Set (PROG)

3.11 Fault Status Output (STAT2)

Preconditioning, fast and termination currents are

scaled by placing a resistor from PROG to V_SS

STAT2 is a current-limited, open-drain drive for direct

connection to a LED for charge status indication.

Alternatively, a pull-up resistor can be applied for

interfacing to a host microcontroller.

.

3.5

Cell Temperature Sensor Bias

(THREF)

THREF is a voltage reference to bias external

thermistor for continuous cell temperature monitoring

and prequalification.

3.12 Charge Status Output (STAT1)

STAT1 is a current-limited, open-drain drive for direct

connection to a LED for charge status indication.

Alternatively, a pull-up resistor can be applied for

interfacing to a host microcontroller.

3.6

Cell Temperature Sensor Input

(THERM)

THERM is an input for an external thermistor for contin-

uous cell-temperature monitoring and prequalification.

Connect to THREF/3 to disable temperature sensing.

DS21893C-page 12

MCP73861/2/3/4

4.0

DEVICE OVERVIEW

The MCP7386X family of devices are highly advanced

linear charge management controllers. Refer to the

functional block diagram. Figure 4-2 depicts the

operational flow algorithm from charge initiation to

completion and automatic recharge.

MCP73862/4 regulate to 4.1V and 8.2V, respectively.

With V_SETtied to V_DD

, the MCP73861/3 and

MCP73862/4 regulate to 4.2V and 8.4V, respectively.

4.4

Charge Cycle Completion and

Automatic Re-Charge

4.1

Charge Qualification and

Preconditioning

The MCP7386X monitors the charging current during

the Constant-voltage regulation mode. The charge

cycle is considered complete when the charge current

has diminished below approximately 8% of the

regulation current (I_REG), or the elapsed timer has

expired.

Upon insertion of a battery, or application of an external

supply, the MCP7386X family of devices automatically

performs a series of safety checks to qualify the

charge. The input source voltage must be above the

Undervoltage Lockout (UVLO) threshold, the enable

pin must be above the logic-high level and the cell

temperature must be within the upper and lower

thresholds. The qualification parameters are

continuously monitored. Deviation beyond the limits

automatically suspends or terminates the charge cycle.

The input voltage must deviate below the UVLO stop

threshold for at least one clock period to be considered

valid.

The MCP7386X automatically begins a new charge

cycle when the battery voltage falls below the recharge

threshold (V_RTH), assuming all the qualification

parameters are met.

4.5

Thermal Regulation

The MCP7386X family limits the charge current based

on the die temperature. Thermal regulation optimizes

the charge cycle time while maintaining device reliabil-

ity. If thermal regulation is entered, the timer is automat-

ically slowed down to ensure that a charge cycle will

not terminate prematurely. Figure 4-1 depicts the

thermal regulation profile.

Once the qualification parameters have been met, the

MCP7386X initiates a charge cycle. The charge status

output is pulled low throughout the charge cycle (see

Table 5-1 for charge status outputs). If the battery

voltage is below the preconditioning threshold (V_PTH),

the MCP7386X preconditions the battery with a trickle-

charge. The preconditioning current is set to approxi-

mately 10% of the fast charge regulation current. The

preconditioning trickle-charge safely replenishes

deeply depleted cells and minimizes heat dissipation

during the initial charge cycle. If the battery voltage has

not exceeded the preconditioning threshold before the

preconditioning timer has expired, a fault is indicated

and the charge cycle is terminated.

1400

1200

1000

800

Maximum

Minimum

600

400

200

0

4.2

Constant Current Regulation –

Fast Charge

0

20

40

60

80

100

120

140

Die Temperature (° C)

Preconditioning ends, and fast charging begins, when

the battery voltage exceeds the preconditioning thresh-

old. Fast charge regulates to a constant current (I_REG),

which is set via an external resistor connected to the

PROG pin. Fast charge continues until the battery

voltage reaches the regulation voltage (V_REG), or the

fast charge timer expires; in which case, a fault is

indicated and the charge cycle is terminated.

FIGURE 4-1:

Current vs. Die Temperature.

Typical Maximum Charge

4.6

Thermal Shutdown

The MCP7386X family suspends charge if the die

temperature exceeds 155°C. Charging will resume

when the die temperature has cooled by approximately

10°C. The thermal shutdown is a secondary safety

feature in the event that there is a failure within the

thermal regulation circuitry.

4.3

Constant Voltage Regulation

When the battery voltage reaches the regulation

voltage (V_REG), constant voltage regulation begins.

The MCP7386X monitors the battery voltage at the

V_BATpin. This input is tied directly to the positive

terminal of the battery. The MCP7386X selects the

voltage regulation value based on the state of V_SET

.

With V_SETtied to V_SSthe MCP73861/3 and

,

DS21893C-page 13

MCP73861/2/3/4

FIGURE 4-2:

Operational Flow Algorithm.

DS21893C-page 14

MCP73861/2/3/4

Figure 6-1 depicts a typical application circuit with

connection of the THERM input. The resistor values of

R_T1and R_T2are calculated with the following

equations.

5.0

DETAILED DESCRIPTION

5.1

Analog Circuitry

For NTC thermistors:

5.1.1

BATTERY MANAGEMENT INPUT

SUPPLY (V_DD1, V_DD2

)

2 × R_COLD× R_HOT

----------------------------------------------

R_T1

=

The V_DDinput is the input supply to the MCP7386X.

The MCP7386X automatically enters a Power-down

mode if the voltage on the V_DDinput falls below the

UVLO voltage (V_STOP). This feature prevents draining

the battery pack when the V_DDsupply is not present.

R

_COLD– R_HOT

2 × R_COLD× R_HOT

----------------------------------------------

_COLD– 3 × R_HOT

R_T2

R

For PTC thermistors:

5.1.2

PROG INPUT

2 × R_COLD× R_HOT

----------------------------------------------

Fast charge current regulation can be scaled by placing

a programming resistor (R_PROG) from the PROG input

to V_SS. Connecting the PROG input to V_SSallows for a

maximum fast charge current of 1.2A, typically. The

minimum fast charge current is 100 mA, set by letting

the PROG input float. The following formula calculates

R_T1

=

R

_HOT– R_COLD

2 × R_COLD× R_HOT

----------------------------------------------

_HOT– 3 × R_COLD

R_T2

R

Where:

the value for R_PROG

:

R_COLDand R_HOTare the thermistor

resistance values at the temperature window

of interest.

13.2 – 11 × I_REG

----------------------------------------

12 × I_REG– 1.2

R_PROG

=

Applying a voltage equal to V_THREF/3 to the THERM

input disables temperature monitoring.

where:

I_REG= the desired fast charge current in amps.

5.1.5

TIMER SET INPUT (TIMER)

R_PROG= measured in kΩ.

The TIMER input programs the period of the safety

timers by placing a timing capacitor (C_TIMER) between

the TIMER input pin and V_SS. Three safety timers are

programmed via the timing capacitor.

The preconditioning trickle-charge current and the

charge termination current are scaled to approximately

10% and 8% of I_REG, respectively.

The preconditioning safety timer period:

5.1.3

CELL TEMPERATURE SENSOR

BIAS (THREF)

C_TIMER

------------------

× 1.0Hours

t_PRECON

=

0.1μF

A 2.5V voltage reference is provided to bias an external

thermistor for continuous cell temperature monitoring

and prequalification. A ratio metric window comparison

is performed at threshold levels of V_THREF/2 and

The fast charge safety timer period:

C_TIMER

------------------

× 1.5Hours

t_FAST

=

V_THREF/4.

0.1μF

5.1.4

CELL TEMPERATURE SENSOR

INPUT (THERM)

The elapsed time termination period:

C_TIMER

------------------

× 3.0Hours

t_TERM

=

The MCP73861/2/3/4 continuously monitors tempera-

ture by comparing the voltage between the THERM

input and V_SSwith the upper and lower temperature

0.1μF

The preconditioning timer starts after qualification and

resets when the charge cycle transitions to the fast

charge, Constant-current mode. The fast charge timer

and the elapsed timer start once the MCP7386X

transitions from preconditioning. The fast charge timer

resets when the charge cycle transitions to the

Constant-voltage mode. The elapsed timer will expire

and terminate the charge if the sensed current does not

diminish below the termination threshold.

thresholds.

A

negative or positive temperature

coefficient, NTC or PTC thermistor and an external

voltage-divider typically develop this voltage. The

temperature sensing circuit has its own reference to

which it performs a ratio metric comparison. Therefore,

it is immune to fluctuations in the supply input (V_DD).

The temperature-sensing circuit is removed from the

system when V_DDis not applied, eliminating additional

discharge of the battery pack.

During thermal regulation, the timer is slowed down

proportional to the charge current.

DS21893C-page 15

MCP73861/2/3/4

The flashing rate (1 Hz) is based off a timer capacitor

(C_TIMER) of 0.1 µF. The rate will vary based on the

value of the timer capacitor.

5.1.6

BATTERY VOLTAGE SENSE (V_BAT3)

The MCP7386X monitors the battery voltage at the

V_BAT3pin. This input is tied directly to the positive

terminal of the battery pack.

During a fault condition, the STAT1 status output will be

off and the STAT2 status output will be on. To recover

from a fault condition, the input voltage must be

removed and then reapplied, or the enable input (EN)

must be de-asserted to a logic-low, then asserted to a

logic-high.

5.1.7

BATTERY CHARGE CONTROL

OUTPUT (V_BAT1, V_BAT2

)

The battery charge control output is the drain terminal

of an internal P-channel MOSFET. The MCP7386X

provides constant current and voltage regulation to the

battery pack by controlling this MOSFET in the linear

region. The battery charge control output should be

connected to the positive terminal of the battery pack.

When the voltage on the THERM input is outside the

preset window, the charge cycle will not start, or will be

suspended. The charge cycle is not terminated and

recovery is automatic. The charge cycle will resume (or

start) once the THERM input is valid and all other

qualification parameters are met. During an invalid

THERM condition, the STAT1 status output will be off

and the STAT2 status output will flash.

5.2

Digital Circuitry

5.2.1

CHARGE STATUS OUTPUTS

(STAT1,STAT2)

5.2.2

The V_SETinput selects the regulated output voltage of

the MCP7386X. With V_SETtied to V_SSthe

MCP73861/3 and MCP73862/4 regulate to 4.1V and

8.2V, respectively. With V_SETtied to V_DDthe

V_SETINPUT

Two status outputs provide information on the state of

charge. The current-limited, open-drain outputs can be

used to illuminate external LEDs. Optionally, a pull-up

resistor can be used on the output for communication

with a host microcontroller. Table 5-1 summarizes the

state of the status outputs during a charge cycle.

,

MCP73861/3 and MCP73862/4 regulate to 4.2V and

8.4V, respectively.

TABLE 5-1:

STATUS OUTPUTS (NOTE)

5.2.3

LOGIC ENABLE (EN)

CHARGE

CYCLE STAT1

STAT1

STAT2

The logic enable input pin (EN) can be used to

terminate a charge at any time during the charge cycle,

as well as to initiate a charge cycle or initiate a recharge

cycle.

Qualification

Off

On

Off

Preconditioning

Constant-

Current Fast

Charge

Applying a logic-high input signal to the EN pin, or tying

it to the input source, enables the device. Applying a

logic-low input signal disables the device and termi-

nates a charge cycle. When disabled, the device’s

supply current is reduced to 0.17 µA, typically.

Constant-

Voltage

On

Off

Charge

Complete

Flashing (1 Hz,

50% duty cycle)

(MCP73861/2)

Off

(All Devices)

Off

(MCP73863/4)

Fault

Off

On

THERM Invalid

Flashing (1 Hz,

50% duty cycle)

Disabled –

Sleep mode

Off

Input Voltage

Disconnected

Off

Note:

Off state: Open-drain is high-impedance

On state: Open-drain can sink current

typically 7 mA

Flashing: Toggles between off state and

on state

DS21893C-page 16

MCP73861/2/3/4

Constant-current followed by Constant-voltage.

Figure 6-1 depicts a typical stand-alone application

circuit, while Figures 6-2 and 6-3 depict the

accompanying charge profile.

6.0

APPLICATIONS

The MCP7386X is designed to operate in conjunction

with a host microcontroller or in stand-alone applica-

tions. The MCP7386X provides the preferred charge

algorithm for Lithium-Ion and Lithium-Polymer cells

Unregulated

STAT1

EN V_SS2

Wall Cube

16 15 14 13

V_SET

1

V_BAT3

V_BAT2

V_BAT1

V_SS3

12

11

10

9

+

–

Single

Lithium-Ion

Cell

V_DD1

2

MCP73861

V_DD2

3

4

V_SS1

5

6

7

8

PROG

R_PROG

TIMER

C_TIMER

R_T1

R_T2

FIGURE 6-1:

Typical Application Circuit.

Preconditioning

Mode

Constant-Current

Mode

Constant-Voltage

Mode

Regulation

Voltage

(V

)

REG

Regulation

Current

(I

)

REG

Charge

Voltage

Transition

Threshold

(V

)

PTH

Precondition

Current

Charge

Current

(I

)

PREG

Termination

Current

(I

)

TERM

Precondition

Safety Timer

Fast Charge

Safety Timer

Elapsed Time

Termination Timer

FIGURE 6-2:

Typical Charge Profile.

DS21893C-page 17

MCP73861/2/3/4

Preconditioning

Mode

Constant-Current

Mode

Constant-Voltage

Mode

Regulation

Voltage

(V

)

REG

Regulation

Current

(I

)

REG

Charge

Voltage

Transition

Threshold

(V

)

PTH

Precondition

Current

Charge

Current

(I

)

PREG

Termination

Current

(I

)

TERM

Precondition

Safety Timer

Fast Charge

Safety Timer

Elapsed Time

Termination Timer

FIGURE 6-3:

Typical Charge Profile in Thermal Regulation.

1200 mA is the maximum charge current obtainable

from the MCP7386X. For this situation, the PROG input

6.1 Application Circuit Design

Due to the low efficiency of linear charging, the most

important factors are thermal design and cost, which

are a direct function of the input voltage, output current

and thermal impedance between the battery charger

and the ambient cooling air. The worst-case situation is

when the device has transitioned from the

Preconditioning mode to the Constant-current mode. In

this situation, the battery charger has to dissipate the

maximum power. A trade-off must be made between

the charge current, cost and thermal requirements of

the charger.

should be connected directly to V_SS

.

6.1.1.2 Thermal Considerations

The worst-case power dissipation in the battery

charger occurs when the input voltage is at the

maximum and the device has transitioned from the

Preconditioning mode to the Constant-current mode. In

this case, the power dissipation is:

PowerDissipation = (V

– V

) × I

PTHMIN REGMAX

DDMAX

Where:

V_DDMAX

I_REGMAX

V_PTHMIN

6.1.1

COMPONENT SELECTION

=

the maximum input voltage

Selection of the external components in Figure 6-1 is

crucial to the integrity and reliability of the charging

system. The following discussion is intended as a guide

for the component selection process.

the maximum fast charge current

the minimum transition threshold

voltage

6.1.1.1

Current Programming Resistor

(R_PROG

)

The preferred fast charge current for Lithium-Ion cells

is at the 1C rate, with an absolute maximum current at

the 2C rate. For example, a 500 mAh battery pack has

a preferred fast charge current of 500 mA. Charging at

this rate provides the shortest charge cycle times with-

out degradation to the battery pack performance or life.

DS21893C-page 18

MCP73861/2/3/4

Power dissipation with a 5V, ±10% input voltage source

is:

6.2

PCB Layout Issues

For optimum voltage regulation, place the battery pack

as close as possible to the device’s V_BATand V_SSpins,

recommended to minimize voltage drops along the

high current-carrying PCB traces.

PowerDissipation = (5.5V – 2.7V) × 575mA = 1.61W

With the battery charger mounted on a 1 in²pad of

1 oz. copper, the junction temperature rise is 60°C,

approximately. This would allow for a maximum operat-

ing ambient temperature of 50°C before thermal

regulation is entered.

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.

6.1.1.3

External Capacitors

The MCP7386X is stable with or without a battery load.

In order to maintain good AC stability in the Constant-

voltage mode, a minimum capacitance of 4.7 µF is

recommended to bypass the V_BATpin to V_SS. This

capacitance provides compensation when there is no

battery load. In addition, the battery and interconnec-

tions appear inductive at high frequencies. These

elements are in the control feedback loop during

Constant-voltage mode. Therefore, the bypass capaci-

tance may be necessary to compensate for the

inductive nature of the battery pack.

Virtually any good quality output filter capacitor can be

used, independent of the capacitor’s minimum

Effective Series Resistance (ESR) value. The actual

value of the capacitor (and its associated ESR)

depends on the output load current. A 4.7 µF ceramic,

tantalum or aluminum electrolytic capacitor at the

output is usually sufficient to ensure stability for up to a

1A output current.

6.1.1.4

Reverse-Blocking Protection

The MCP7386X provides protection from a faulted or

shorted input, or from a reversed-polarity input source.

Without the protection, a faulted or shorted input would

discharge the battery pack through the body diode of

the internal pass transistor.

6.1.1.5

Enable Interface

In the stand-alone configuration, the enable pin is

generally tied to the input voltage. The MCP7386X

automatically enters a Low-power mode when voltage

on the V_DDinput falls below the UVLO voltage (V_STOP),

reducing the battery drain current to 0.23 µA, typically.

6.1.1.6

Charge Status Interface

Two status outputs provide information on the state of

charge. The current-limited, open-drain outputs can be

used to illuminate external LEDs. Refer to Table 5-1 for

a summary of the state of the status outputs during a

charge cycle.

DS21893C-page 19

MCP73861/2/3/4

7.0

7.1

PACKAGING INFORMATION

Package Marking Information

Example:

16-Lead QFN*

16

15

14

13

16

15

14

13

1

2

3

4

12

11

10

9

1

2

3

4

12

11

10

9

XXXXXXXX

YYWW

73861

I/ML

0532

256

NNN

5

6

7

8

5

6

7

8

16-Lead SOIC (150 mil)

Example:

MCP73861

XXXXXXXXXXXXX

e

3

I/SL^^

YYWWNNN

0532256

Legend: XX...X Customer-specific information

Y

YY

Year code (last digit of calendar year)

Year code (last 2 digits of calendar year)

WW

NNN

Week code (week of January 1 is week ‘01’)

Alphanumeric traceability code

e

3

Pb-free JEDEC designator for Matte Tin (Sn)

*

This package is Pb-free. The Pb-free JEDEC designator (

can be found on the outer packaging for this package.

)

e

3

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.

DS21893C-page 20

MCP73861/2/3/4

16-Lead Plastic Quad Flat No-Lead Package (ML) 4x4x0.9 mm Body (QFN) – Saw Singulated

D

D2

EXPOSED

METAL

PAD

(NOTE 2)

e

b

E2

E

2

1

n

OPTIONAL

L

TOP VIEW

BOTTOM VIEW

INDEX

AREA

(NOTE 1)

A3

A

A1

Units

Dimension Limits

INCHES

NOM

MILLIMETERS

*

MIN

MAX

MIN

NOM

MAX

n

e

Number of Pins

Pitch

16

.026 BSC

.035

.001

.008 REF

0.65 BSC

0.90

0.02

0.20 REF

Overall Height

Standoff

A

A1

A3

E

.031

.039

0.80

1.00

.000

.002

0.00

0.05

Contact Thickness

Overall Width

Exposed Pad Width

Overall Length

Exposed Pad Length

Contact Width

Contact Length

.152

.090

.152

.090

.010

.012

.157

.104

.157

.104

.012

.016

.163

.106

.163

.106

.014

.020

3.85

2.29

3.85

2.29

0.25

0.30

4.00

2.64

4.00

2.64

0.30

0.40

4.15

2.69

4.15

2.69

0.35

0.50

E2

D

D2

b

L

*

Controlling Parameter

Notes:

1. Pin 1 visual index feature may vary, but must be located within the hatched area.

2.

Exposed pad varies according to die attach paddle size.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

See ASME Y14.5M

REF: Reference Dimension, usually without tolerance, for information purposes only.

See ASME Y14.5M

JEDEC equivalent: M0-220

Drawing No. C04-127

Revised 07-21-05

DS21893C-page 21

MCP73861/2/3/4

16-Lead Plastic Small Outline (SL) – Narrow 150 mil Body (SOIC)

E

E1

p

D

2

B

n

1

α

h

45°

c

A2

A

φ

L

A1

β

Units

INCHES*

NOM

16

MILLIMETERS

Dimension Limits

MIN

MAX

MIN

NOM

16

MAX

n

p

Number of Pins

Pitch

.050

1.27

Overall Height

A

.053

.061

.057

.007

.237

.154

.390

.015

.033

4

.069

1.35

1.55

1.44

0.18

6.02

3.90

9.91

0.38

0.84

4

1.75

1.55

0.25

6.20

3.99

10.01

0.51

1.27

8

Molded Package Thickness

A2

A1

E

.052

.004

.228

.150

.386

.010

.016

0

.061

.010

.244

.157

.394

.020

.050

8

1.32

0.10

5.79

3.81

9.80

0.25

0.41

0

Standoff

§

Overall Width

Molded Package Width

Overall Length

E1

D

Chamfer Distance

Foot Length

h

L

φ

Foot Angle

c

Lead Thickness

Lead Width

.008

.013

0

.009

.017

12

.010

.020

15

0.20

0.33

0

0.23

0.42

12

0.25

0.51

15

B

α

β

Mold Draft Angle Top

Mold Draft Angle Bottom

* Controlling Parameter

§ Significant Characteristic

Notes:

0

12

15

0

12

15

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side.

JEDEC Equivalent: MS-012

Drawing No. C04-108

DS21893C-page 22

MCP73861/2/3/4

APPENDIX A: REVISION HISTORY

Revision C (August 2005)

The following is the list of modifications:

1. Added MCP73863 and MCP73864 devices

throughout data sheet.

2. Added Appendix A: Revision History.

3. Updated QFN and SOIC package diagrams.

Revision B (December 2004)

• Added SOIC package throughout data sheet.

Revision A (June 2004)

• Original Release of this Document.

DS21893C-page 23

MCP73861/2/3/4

NOTES:

DS21893C-page 24

MCP73861/2/3/4

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.

Examples:

PART NO.

Device

X

XX

a)

b)

MCP73861-I/ML: Single-Cell Controller

16LD-QFN package.

MCP73861T-I/ML: Tape and Reel,

Temperature Package

Range

Single-Cell Controller

16LD-QFN package.

Single-Cell Controller

16LD-SOIC package.

c)

d)

MCP73861-I/SL:

Device

MCP73861:

Single-Cell Charge Controller with

Temperature Monitor

MCP73861T-I/SL: Tape and Reel,

Single-Cell Controller

MCP73861T: Single-Cell Charge Controller with

Temperature Monitor, Tape and Reel

MCP73862:

16LD-SOIC package.

Dual Series Cells Charge Controller with

Temperature Monitor

MCP73862T: Dual Series Cells Charge Controller with

Temperature Monitor, Tape and Reel

a)

b)

MCP73862-I/ML: Dual-Cell Controller

16LD-QFN package.

MCP73862T-I/ML: Tape and Reel,

Dual-Cell Controller

MCP73863:

Single-cell Charge Controller with

Temperature Monitor

MCP73863T: Single-Cell Charge Controller with

Temperature Monitor, Tape and Reel

16LD-QFN package.

c)

d)

MCP73862-I/SL:

Dual-Cell Controller

16LD-SOIC package.

MCP73864:

Dual Series Cells Charge Controller with

Temperature Monitor

MCP73862T-I/SL: Tape and Reel,

Dual-Cell Controller

MCP73864T: Dual Series Cells Charge Controller with

Temperature Monitor, Tape and Reel

16LD-SOIC package.

Temperature Range

Packages

I

= -40°C to +85°C (Industrial)

a)

b)

MCP73863-I/ML: Single-Cell Controller

16LD-QFN package.

MCP73863T-I/ML: Tape and Reel,

Single-Cell Controller

ML

SL

=

Plastic Quad Flat No Lead, 4x4 mm Body (QFN),

16-lead

16LD-QFN package.

=

Plastic Small Outline, 150 mm Body (SOIC),

16-lead

c)

d)

MCP73863-I/SL:

Single-Cell Controller

16LD-SOIC package.

MCP73863T-I/SL: Tape and Reel,

Single-Cell Controller

16LD-SOIC package.

a)

b)

MCP73864-I/ML: Dual-Cell Controller

16LD-QFN package.

MCP73864T-I/ML: Tape and Reel,

Dual-Cell Controller

16LD-QFN package.

c)

d)

MCP73864-I/SL:

Dual-Cell Controller

16LD-SOIC package.

MCP73864T-I/SL: Tape and Reel,

Dual-Cell Controller

16LD-SOIC package.

DS21893C-page 25

MCP73861/2/3/4

NOTES:

DS21893C-page 26

Note the following details of the code protection feature on Microchip devices:

•

Microchip products meet the specification contained in their particular Microchip Data Sheet.

•

Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

•

There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

•

Microchip is willing to work with the customer who is concerned about the integrity of their code.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR WAR-

RANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED,

WRITTEN OR ORAL, STATUTORY OR OTHERWISE,

RELATED TO THE INFORMATION, INCLUDING BUT NOT

LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,

MERCHANTABILITY OR FITNESS FOR PURPOSE.

Microchip disclaims all liability arising from this information and

its use. Use of Microchip’s products as critical components in

life support systems is not authorized except with express

written approval by Microchip. No licenses are conveyed,

implicitly or otherwise, under any Microchip intellectual property

rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,

dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro,

PICSTART, PRO MATE, PowerSmart, rfPIC, and

SmartShunt are registered trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries.

AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB,

PICMASTER, SEEVAL, SmartSensor and The Embedded

Control Solutions Company are registered trademarks of

Microchip Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, dsPICDEM,

dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,

FanSense, FlexROM, fuzzyLAB, In-Circuit Serial

Programming, ICSP, ICEPIC, Linear Active Thermistor,

MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM,

PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo,

PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode,

Smart Serial, SmartTel, Total Endurance and WiperLock 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.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 quality system certification for

its worldwide headquarters, design and wafer fabrication facilities in

Chandler and Tempe, Arizona and Mountain View, California in

October 2003. The Company’s quality system processes and

procedures are for its PICmicro^®8-bit MCUs, KEELOQ^®code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

DS21893C-page 27

WORLDWIDE SALES AND SERVICE

AMERICAS

ASIA/PACIFIC

EUROPE

Corporate Office

Australia - Sydney

Tel: 61-2-9868-6733

Fax: 61-2-9868-6755

India - Bangalore

Tel: 91-80-2229-0061

Fax: 91-80-2229-0062

Austria - Weis

Tel: 43-7242-2244-399

Fax: 43-7242-2244-393

2355 West Chandler Blvd.

Chandler, AZ 85224-6199

Tel: 480-792-7200

Fax: 480-792-7277

Technical Support:

http://support.microchip.com

Web Address:

www.microchip.com

China - Beijing

Tel: 86-10-8528-2100

Fax: 86-10-8528-2104

Denmark - Copenhagen

Tel: 45-4450-2828

Fax: 45-4485-2829

India - New Delhi

Tel: 91-11-5160-8631

Fax: 91-11-5160-8632

China - Chengdu

Tel: 86-28-8676-6200

Fax: 86-28-8676-6599

France - Paris

Tel: 33-1-69-53-63-20

Fax: 33-1-69-30-90-79

India - Pune

Tel: 91-20-2566-1512

Fax: 91-20-2566-1513

Atlanta

China - Fuzhou

Tel: 86-591-8750-3506

Fax: 86-591-8750-3521

Germany - Munich

Tel: 49-89-627-144-0

Fax: 49-89-627-144-44

Japan - Yokohama

Tel: 81-45-471- 6166

Fax: 81-45-471-6122

Alpharetta, GA

Tel: 770-640-0034

Fax: 770-640-0307

Italy - Milan

Tel: 39-0331-742611

Fax: 39-0331-466781

China - Hong Kong SAR

Tel: 852-2401-1200

Fax: 852-2401-3431

Korea - Gumi

Tel: 82-54-473-4301

Fax: 82-54-473-4302

Boston

Westborough, MA

Tel: 774-760-0087

Fax: 774-760-0088

Netherlands - Drunen

Tel: 31-416-690399

Fax: 31-416-690340

China - Qingdao

Tel: 86-532-8502-7355

Fax: 86-532-8502-7205

Korea - Seoul

Tel: 82-2-554-7200

Fax: 82-2-558-5932 or

82-2-558-5934

Chicago

Itasca, IL

Tel: 630-285-0071

Fax: 630-285-0075

Spain - Madrid

Tel: 34-91-352-30-52

Fax: 34-91-352-11-47

China - Shanghai

Tel: 86-21-5407-5533

Fax: 86-21-5407-5066

China - Shenyang

Tel: 86-24-2334-2829

Fax: 86-24-2334-2393

Malaysia - Penang

Tel: 604-646-8870

Fax: 604-646-5086

Dallas

Addison, TX

Tel: 972-818-7423

Fax: 972-818-2924

UK - Wokingham

Tel: 44-118-921-5869

Fax: 44-118-921-5820

Philippines - Manila

Tel: 632-634-9065

Fax: 632-634-9069

China - Shenzhen

Detroit

Tel: 86-755-8203-2660

Fax: 86-755-8203-1760

Farmington Hills, MI

Tel: 248-538-2250

Fax: 248-538-2260

Singapore

Tel: 65-6334-8870

Fax: 65-6334-8850

China - Shunde

Tel: 86-757-2839-5507

Fax: 86-757-2839-5571

Kokomo

Kokomo, IN

Tel: 765-864-8360

Fax: 765-864-8387

Taiwan - Hsin Chu

Tel: 886-3-572-9526

Fax: 886-3-572-6459

China - Wuhan

Tel: 86-27-5980-5300

Fax: 86-27-5980-5118

Taiwan - Kaohsiung

Tel: 886-7-536-4818

Fax: 886-7-536-4803

Los Angeles

Mission Viejo, CA

Tel: 949-462-9523

Fax: 949-462-9608

China - Xian

Tel: 86-29-8833-7250

Fax: 86-29-8833-7256

Taiwan - Taipei

Tel: 886-2-2500-6610

Fax: 886-2-2508-0102

San Jose

Mountain View, CA

Tel: 650-215-1444

Fax: 650-961-0286

Thailand - Bangkok

Tel: 66-2-694-1351

Fax: 66-2-694-1350

Toronto

Mississauga, Ontario,

Canada

Tel: 905-673-0699

Fax: 905-673-6509

08/24/05

DS21893C-page 28


型号：	MCP73861-I/ML
厂家：	MICROCHIP
描述：	Advanced Single or Dual Cell, Fully Integrated Li-Ion / Li-Polymer Charge Management Controllers 先进的单或双电池，完全集成的锂离子/锂聚合物充电管理控制器电源电路电池电源管理电路控制器
文件：	总28页 (文件大小：444K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MCP73861-I/ML [MICROCHIP]

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