MCP73213 Dual-Cell Li-Ion / Li-Polymer Battery Charge Management Controller with Input Overvoltage Protection

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 2009-2018 Microchip Technology Inc.

DS20002190D-page  1

MCP73213

Features

• Complete Linear Charge Management Controller:

- Integrated Input Overvoltage Protection
- Integrated Pass Transistor
- Integrated Current Sense
- Integrated Reverse Discharge Protection

• Constant Current/Constant Voltage Operation 

with Thermal Regulation

• 4.15V Undervoltage Lockout (UVLO)
• 13V Input Overvoltage Protection
• High Accuracy Preset Voltage Regulation through 

Full Temperature Range (–5°C to +55°C ±0.6%) 

• Battery Charge Voltage Options: 

- 8.20V, 8.40V, 8.7V or 8.8V

• Resistor Programmable Fast Charge Current:

- 130 mA-1100 mA

• Preconditioning of Deeply Depleted Cells:

- Available Options: 10% or Disable

• Integrated Precondition Timer:

- 32 Minutes or Disable

• Automatic End-of-Charge Control:

- Selectable Minimum Current Ratio:

5%, 7.5%, 10% or 20%

- Elapse Safety Timer: 4 hr., 6 hr., 8 hr.

 

or 

Disable

• Automatic Recharge:

- Available Options: 95% or Disable

• Factory Preset Charge Status Output:

- On/Off or Flashing

• Soft Start
• Temperature Range: –40°C to +85°C
• Packaging: DFN-10 (3 mm x 3 mm)

Applications

• Digital Camcorders
• Portable Media Players
• Ultra Mobile Personal Computers
• Netbook Computers
• Handheld Devices
• Walkie-Talkie
• Low-Cost 2-Cell Li-Ion/Li-Poly Chargers/Cradles

Description

The MCP73213 is a highly integrated Li-Ion battery
charge management controller for use in space-limited
and cost-sensitive applications. The MCP73213
provides specific charge algorithms for dual-cell Li-Ion/
Li-Polymer batteries to achieve optimal capacity and
safety in the shortest charging time possible. Along
with its small physical size, the low number of external
components makes the MCP73213 ideally suitable for
portable applications. The absolute maximum voltage,
up to 18V, allows the use of MCP73213 in harsh
environments, such as low-cost wall wart or voltage
spikes from plug/unplug.
The MCP73213 employs a constant current/constant
voltage charge algorithm. The various charging voltage
regulations provide design engineers flexibility to use in
different applications. The fast charge, constant current
value is set with one external resistor from 130 mA to
1100 mA. The MCP73213 limits the charge current
based on die temperature during high-power or high-
ambient conditions. This thermal regulation optimizes
the charge cycle time while maintaining device
reliability.
The PROG pin of the MCP73213 also serves as enable
pin. When high impedance is applied, the MCP73213
will be in Standby mode. 
The MCP73213 is fully specified over the ambient
temperature range of -40°C to +85°C. The MCP73213
is available in a 10-lead DFN package.

Package Types (Top View)   

MCP73213

3x3 DFN *

V

BAT

V

DD

V

BAT

V

SS

V

SS

1
2
3
4

10

9
8
7 STAT

PROG

V

DD

* Includes Exposed Thermal Pad (EP); see 

Table 3-1

.

EP

11

NC 5

6 NC

Dual-Cell Li-Ion/Li-Polymer Battery Charge Management 

Controller with Input Overvoltage Protection

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MCP73213

DS20002190D-page  2

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Typical Application   

V

DD

5

 3

1

2

 8

7

R

PROG

 9

 10

C

IN

C

OUT

R

LED

+

-

 

2-Cell 

 

Li-Ion 

Battery

6

 4

MCP73213

V

DD

STAT

NC

NC

V

BAT

V

BAT

 PROG

V

SS

V

SS

AC-DC-Adapter

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DS20002190D-page  

3

MCP73213

TABLE 1:

AVAILABLE FACTORY PRESET OPTIONS

TABLE 2:

STANDARD SAMPLE OPTIONS

Charge 

Voltage

OVP

Preconditioning

Charge Current

Preconditioning

Threshold

Precondition

Timer

Elapse

Timer

End-of-Charge

Control

Automatic 

Recharge

Output

Status

8.2V

13V

Disable/10%

66.5%/71.5%

Disable/

32 Minimum

Disable/4 hr/

6 hr/8 hr

5%/7.5%/

 10%/20%

No/

Yes

Type 1/

 Type 2

8.4V

13V

Disable/10%

66.5%/71.5%

Disable/

32 Minimum

Disable/4 hr/

6 hr/8 hr

5%/7.5%/

 10%/20%

No/

Yes

Type 1/

 Type 2

8.7V

13V

Disable/10%

66.5%/71.5%

Disable/

32 Minimum

Disable/4 hr/

6 hr/8 hr

5%/7.5%/

 10%/20%

No/

Yes

Type 1/

 Type 2

8.8V

13V

Disable/10%

66.5%/71.5%

Disable/

32 Minimum

Disable/4 hr/

6 hr/8 hr

5%/7.5%/

 10%/20%

No/

Yes

Type 1/

 Type 2

Note 1:

I

REG

: Regulated fast charge current.

2:

V

REG

: Regulated charge voltage.

3:

I

PREG

/I

REG

: Preconditioning charge current; ratio of regulated fast charge current.

4:

I

TERM

/I

REG

: End-of-Charge control; ratio of regulated fast charge current.

5:

V

RTH

/V

REG

: Recharge threshold; ratio of regulated battery voltage.

6:

V

PTH

/V

REG

: Preconditioning threshold voltage.

7:

Type 1: On/Off; Type 2: Flashing. Please refer to 

Table 5-2

.

Part

Number

V

REG

OVP

I

PREG

/I

REG

Precharge

Timer

Elapse

Timer

I

TERM

/I

REG

V

RTH

/V

REG

V

PTH

/V

REG

Output

Status

MCP73213-B6S/MF

8.20V

13V

10%

32 Minimum

6 hr

10%

95%

71.5%

Type 1

MCP73213-A6S/MF

8.40V

13V

10%

32 Minimum

6 hr

10%

95%

71.5%

Type 1

Note 1:

Customers should contact their distributor, representatives or field application engineer (FAE) for support and sample. Local sales offices are also avail-
able to help customers. A listing of sales offices and locations is included at the back of this document. Technical support is available through the web site 
at: 

http://www.microchip.com/support

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MCP73213

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Functional Block Diagram   

REFERENCE,
BIAS, UVLO,
AND SHDN

VREF (1.21V)

STAT

PROG

VBAT

VSS

DIRECTION
 CONTROL

PRECONDITION

+

-

TERM

+

-

+

-

CA

CHARGE

+

-

+

-

VA

+

-

CURRENT
LIMIT

CHARGE
CONTROL,
TIMER,
AND
STATUS
LOGIC

VREF

VOREG

VOREG

UVLO

VDD

Input OverVP

VDD

+

-

13V

Thermal Regulation

TSD

+

-

110

°C

*Recharge

VBAT

+

-

95% VREG

*Only available on selected options

G=0.001

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 2009-2018 Microchip Technology Inc.

DS20002190D-page  5

MCP73213

1.0

ELECTRICAL 
CHARACTERISTICS

Absolute Maximum Ratings†

V

DD

......................................................................18.0V

V

PROG

...................................................................6.0V

All Inputs and Outputs w.r.t. V

SS

.....-0.3 to (V

DD

+0.3)V

Maximum Junction Temperature, T

J

. Internally Limited

Storage Temperature ........................ –65°C to +150°C
ESD Protection on All Pins

 4 kV HBM

ESD Protection on All Pins

 300V MM

† 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 V

DD

= [V

REG

(Typical) + 0.3V] to 12V, 

T

= -40°C to +85°C. Typical values are at +25°C, V

DD 

= [V

REG

 (Typical) + 1.0V] 

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Supply Input
Input Voltage Range

V

DD

4

16

V

Operating Supply Voltage

V

DD

4.2

13

V

Supply Current

I

SS

4

5.5

μA

Shutdown (V

DD

 ≤ V

BAT

 – 150 mV)

700

1500

μA

Charging

50

125

μA

Standby (PROG Floating)

50

150

μA

Charge Complete; No Battery; 
V

DD

 < V

STOP

Battery Discharge Current
Output Reverse Leakage 
Current

I

DISCHARGE

0.5

2

μA

Standby (PROG Floating)

0.5

2

μA

Shutdown (V

DD

 ≤ V

BAT

or V

DD

 < V

STOP

)

10

17

μA

Charge Complete; V

DD

 is present

Undervoltage Lockout
UVLO Start Threshold

V

START

4.10

4.15

4.25

V

UVLO Stop Threshold

V

STOP

4.00

4.05

4.10

V

UVLO Hysteresis

V

HYS

100

mV

Overvoltage Protection
OVP Start Threshold

V

OVP

12.8

13

13.2

V

OVP Hysteresis

V

OVPHYS

150

mV

Voltage Regulation (Constant Voltage Mode)
Regulated Output Voltage 
Options

V

REG

8.15

8.20

8.25

V

T

A

= –5°C to +55°C

V

DD

 = [V

REG

(Typical)+1V]

I

OUT

 = 50 mA 

8.35

8.40

8.45

V

8.65

8.70

8.75

V

8.75

8.80

8.85

V

Output Voltage Tolerance

V

RTOL

–0.6

0.6

%

Line Regulation

V

BAT

/

V

BAT

)/

V

DD

|

0.05

0.20

%/V V

DD

 = [V

REG

(Typical)+1V] to 12V

I

OUT

 = 50 mA

Load Regulation

V

BAT

/V

BAT

|

0.05

0.20

%

I

OUT

 = 50 mA – 150 mA

V

DD

 = [V

REG

(Typical)+1V]

Note 1:

Not production tested. Ensured by design.

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MCP73213

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Supply Ripple Attenuation

PSRR

–46

dB

I

OUT

 = 20 mA, 10 Hz to 1 kHz

–30

dB

I

OUT

 = 20 mA, 10 Hz to 10 kHz

Battery Short Protection
BSP Start Threshold

V

SHORT

3.4

V

BSP Hysteresis

V

BSPHYS

150

mV

BSP Regulation Current

I

SHORT

25

mA

Current Regulation (Fast Charge, Constant-Current Mode)
Fast Charge Current 
Regulation

I

REG

130

1100

mA

T

A

 = –5°C to +55°C

PROG = 10 k

PROG = 1.1 k



117

130

143

mA

900

1000

1100

mA

Preconditioning Current Regulation (Trickle Charge Constant-Current Mode)
Precondition Current 
Ratio

I

PREG

/I

REG

10

%

PROG = 1 k

to 10 k

T

A

=-5°C to +55°C

100

%

No Preconditioning

Precondition Voltage 
Threshold Ratio

V

PTH

/V

REG

64

66.5

69

%

V

BAT

 Low-to-High

69

71.5

74

%

V

BAT

 Low-to-High

Precondition Hysteresis

V

PHYS

100

mV

V

BAT

 High-to-Low (

Note 1

)

Charge Termination
Charge Termination
Current Ratio

I

TERM

/I

REG

3.7

5

6.3

%

PROG = 1 k

to 10 k

T

A

=–5°C to +55°C

5.6

7.5

9.4

%

7.5

10

12.5

%

15

20

25

%

Automatic Recharge

Recharge Voltage 
Threshold Ratio

V

RTH

/V

REG

93

95.0

97

%

V

BAT

 High-to-Low

0

%

No Automatic Recharge

Pass Transistor ON-Resistance
ON-Resistance

R

DSON

350

m

 V

DD

 = 4.5V, T

J

 = 105°C (

Note 1

)

Status Indicator - STAT
Sink Current

I

SINK

20

35

mA

Low Output Voltage

V

OL

0.2

0.5

V

I

SINK

 = 4 mA

Input Leakage Current

I

LK

0.001

1

μA

High Impedance, V

DD

 on pin

PROG Input
Charge Impedance 
Range

R

PROG

1

22

k

Shutdown Impedance

R

PROG

200

k

Impedance for Shutdown 

Automatic Power-Down
Automatic Power-Down 

Entry Threshold

V

PDENTRY

V

BAT 

+ 10 

mV

V

BAT

 + 50 

mV

V

V

DD

 Falling

Automatic Power-Down 

Exit Threshold

V

PDEXIT

V

BAT

 + 150

 mV

V

BAT

 + 250 

mV

V

V

DD

 Rising

DC CHARACTERISTICS

 (CONTINUED)

Electrical Specifications:

 Unless otherwise indicated, all limits apply for V

DD

= [V

REG

(Typical) + 0.3V] to 12V, 

T

= -40°C to +85°C. Typical values are at +25°C, V

DD 

= [V

REG

 (Typical) + 1.0V] 

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Note 1:

Not production tested. Ensured by design.

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DS20002190D-page  7

MCP73213

AC CHARACTERISTICS

TEMPERATURE SPECIFICATIONS   

Thermal Shutdown
Die Temperature

T

SD

150

C

Die Temperature 
Hysteresis

T

SDHYS

10

C

Electrical Specifications:

 Unless otherwise specified, all limits apply for V

DD

= [V

REG

(Typical)+0.3V] to 12V, 

T

A

=–40°C to +85°C. Typical values are at +25°C, V

DD

= [V

REG

(Typical)+1.0V] 

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Elapsed Timer
Elapsed Timer Period

t

EL-

APSED

0

Hours

Timer Disabled

3.6

4.0

4.4

Hours

5.4

6.0

6.6

Hours

7.2

8.0

8.8

Hours

Preconditioning Timer
Preconditioning Timer Period

t

PRECHG

0

Hours

Disabled Timer

0.4

0.5

0.6

Hours

Status Indicator
Status Output Turn-Off

t

OFF

500

μs

I

SINK

 = 1 mA to 0 mA 

(

Note 1

)

Status Output Turn-On

t

ON

500

μs

I

SINK

 = 0 mA to 1 mA 

(

Note 1

)

Note 1:

Not production tested. Ensured by design.

Electrical Specifications:

 Unless otherwise indicated, all limits apply for V

DD 

= [V

REG 

(Typical) + 0.3V] to 6V.

Typical values are at +25°C, V

DD 

= [V

REG 

(Typical) + 1.0V] 

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Temperature Ranges
Specified Temperature Range

T

A

–40

+85

°C

Operating Temperature Range

T

J

–40

+125

°C

Storage Temperature Range

T

A

–65

+150

°C

Thermal Package Resistances
Thermal Resistance, DFN-10LD 
(3x3)

JA

62

°C/W

4-Layer JC51-7 Standard 
Board, Natural Convection 

JC

20.5

°C/W

DC CHARACTERISTICS

 (CONTINUED)

Electrical Specifications:

 Unless otherwise indicated, all limits apply for V

DD

= [V

REG

(Typical) + 0.3V] to 12V, 

T

= -40°C to +85°C. Typical values are at +25°C, V

DD 

= [V

REG

 (Typical) + 1.0V] 

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Note 1:

Not production tested. Ensured by design.

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NOTES:

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DS20002190D-page  9

MCP73213

2.0

TYPICAL PERFORMANCE CURVES   

Note: 

Unless otherwise indicated, V

DD

 = [V

REG

(Typical) + 1V], T

A

= +25°C, Constant Voltage mode.

 

FIGURE 2-1:

Battery Regulation Voltage 

(V

BAT

) vs. Supply Voltage (V

DD

).

 

FIGURE 2-2:

Battery Regulation Voltage 

(V

BAT

) vs. Supply Voltage (V

DD

).

FIGURE 2-3:

Battery Regulation Voltage 

(V

BAT

) vs. Ambient Temperature (T

A

).

FIGURE 2-4:

Battery Regulation Voltage 

(V

BAT

) vs. Ambient Temperature (T

A

).

 

FIGURE 2-5:

Charge Current (I

OUT

) vs. 

Programming Resistor (R

PROG

).

 

FIGURE 2-6:

Charge Current (I

OUT

) vs. 

Supply Voltage (V

DD

).

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.

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MCP73213

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TYPICAL PERFORMANCE CURVES

 

(CONTINUED)

Note: 

Unless otherwise indicated, V

DD

 = [V

REG

(Typical) + 1V], T

A

= +25°C, Constant-voltage mode.

 

FIGURE 2-7:

Charge Current (I

OUT

) vs. 

Supply Voltage (V

DD

).

 

FIGURE 2-8:

Charge Current (I

OUT

) vs. 

Supply Voltage (V

DD

).

FIGURE 2-9:

Charge Current (I

OUT

) vs. 

Ambient Temperature (T

A

).

FIGURE 2-10:

Charge Current (I

OUT

) vs. 

Ambient Temperature (T

A

).

 

FIGURE 2-11:

Battery Short Protection 

Regulation Current (I

SHORT

) vs. Ambient 

Temperature (T

A

).

FIGURE 2-12:

Output Leakage Current 

(I

DISCHARGE

) vs. Ambient Temperature (T

A

).

-1.0

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

-5.0

5.0

15.0

25.0

35.0

45.0

55.0

Discharge Current (µA)

Ambient Temperature (°C)

V

DD

< V

BAT

V

DD

< V

STOP

End of Charge

Maker
Microchip Technology Inc.
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