MM3722AJ1YRE [MITSUMI]

1cell Li-ion/Li-polymer battery protection IC;


型号：	MM3722AJ1YRE
厂家：	MITSUMI ELECTRONICS, CORP.
描述：	1cell Li-ion/Li-polymer battery protection IC
文件：	总3页 (文件大小：49K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MITSUMI

1cell Li-ion/Li-polymer battery protection IC MM3722 Series

1cell Li-ion/Li-polymer battery protection IC

MM3722 Series

Outline

MM3722 series are Li-ion battery protection IC and detect charge current / discharge current with high

precision by current sensing resistor (Rsns). In the One-cell battery pack, on resistance of the FET SW has

been used for over-current/short-current detection. MM3722 realize over-current/short-current protection

with high accuracy and with no temperature dependence by using a chip resistor.

(Unless otherwise speciﬁed, Topr=+25°C)

Features

(1) Range and accuracy of detection voltage

Overcharge detection voltage

3.6V to 5.0V, 5mV step

Accuracy 20mV

Accuracy 25mV (Topr=−20 to +60°C)

Accuracy 30mV

Overcharge release voltage

Overdischarge detection voltage

Overdischarge release voltage

Vdet1−0.2V to Vdet1, 5mV step

2.0V to 3.0V, 50mV step

Accuracy 35mV

2.0V to 3.0V, 50mV step

Accuracy+65/-35mV (In case Vdet2=Vrel2)

Accuracy+90/-65mV (In case Vdet2 Vrel2)

Discharging overcurrent detection voltage

Charging overcurrent detection voltage

Short detection voltage1

20mV to 150mV, 1mV step

−150mV to −20mV, 1mV step

40mV to 250mV, 1mV step

VDD−0.9V

Accuracy

(Note1)

(Note2)

Short detection voltage2

Accuracy 300mV

Accuracy 100mV

Accuracy 300mV

0V battery charge inhibition battery voltage

1.3V to 1.8V / 0.1V step

0.9V

Note1 : Current detection voltage Accuracy

Note2 : Short detection voltage1 Accuracy

Vdet3, Vdet4 Accuracy

Vshort1 Accuracy

20 30

90 100

100

Vdet3, Vdet4 (mV)

Vshort1 (mV)

(2) Delay time setting

Overcharge detection delay time

256ms to 4.6s

8ms to 256ms

6ms to 64ms

250µs to 400µs

Overdischarge detection delay time

Discharging overcurrent detection delay time

Charging overcurrent detection delay time

Short detection delay time

(3) Current consumption

Normal mode

Typ. 3.0µA, Max. 6.0µA

Stand-by mode

Max. 0.1µA (In case Overdischarge latch function Enable)

Max. 0.6µA (In case Overdischarge latch function Disable)

(4) 0V battery Charge function

Selectable ”Permission” or ”Inhibition”

(5) Absolute maximum ratings

VDD pin

VSS−0.3V to +12V

VDD−28V to VDD+0.3V

VSS−0.3V to VDD+0.3V

−55°C to +125°C

COUT pin and V− pin

DOUT pin and CS pin

Storage temperature

Operation temperature

−40°C to + 85°C

• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.

• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

MITSUMI

1cell Li-ion/Li-polymer battery protection IC MM3722 Series

Pin Assignment

Top view

Pin No.

Function

SSON-6J

SON-6C

Negative power supply voltage input

terminal

DOUT COUT V-

DOUT COUT

V-

Positive power supply voltage input

terminal

Current detection terminal

Charger negative voltage input

terminal

VSS VDD

VSS VDD CS

Charge FET control terminal

Discharge FET control terminal

Product Line up

Protection mode latch function

Hys-Cancel

Product name

Package

Vdet1

Vrel1

Vdet2

Vrel2

Vdet3

Vdet4 Vshort

MM3722AJ1YRE

MM3722AJ4RRE

MM3722AM1RRE

MM3722KF1RRE

MM3722KF2RRE

MM3722KF3RRE

MM3722KF4RRE

SON-6C Permission Disable Disable Disable Enable Enable Yes (VDD-0.9V) 4.425 4.225 2.500 2.900 0.036

SSON-6J Permission Disable Disable Disable Enable Enable Yes (VDD-0.9V) 4.470 4.270 2.500 2.900 0.049

-0.020 0.060

-0.031 0.160

-0.020 0.060

-0.030 0.180

-0.022 0.180

-0.030 0.180

SSON-6J

0.9

1.5

Disable Disable Disable Enable Enable Yes (VDD-0.9V) 4.475 4.275 2.500 2.900 0.032

Enable Enable Disable

Yes (1.0V) 4.280 4.280 2.400 2.400 0.032

Yes (1.0V) 4.425 4.425 2.400 2.400 0.034

Yes (1.0V) 4.425 4.425 2.800 2.800 0.040

Yes (1.0V) 4.425 4.425 2.600 2.600 0.040

Note2 : Delay time

tVdet1 [s]

tVrel1 [ms] tVdet2 [ms] tVrel2 [ms] tVdet3 [ms] tVrel3 [ms] tVdet4 [ms] tVrel4 [ms] tshort [µs]

1.000

1.024

8.00

16.00

20.00

96.00

1.00

12.00

16.00

1.00

16.00

10.00

8.00

1.00

250

300

250

125.00

Please inquire to us, if you need another spec.

• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.

• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

MITSUMI

1cell Li-ion/Li-polymer battery protection IC MM3722 Series

Application Circuit

B+

P+

VDD

Delay Short

0V cell

Charge

Oscillator

Over

charge

Counter

Logic

Discharge

current

over

Cell

Over

discharge

Charge

over

current

Protection

mode

release

Rpu

Delay

Rshort

V−

VSS

Short1

Short2

DOUT

DFET

COUT

CFET

Rsns

B−

P−

Symbol

Part

Resistor

Capacitor

Resistor

Capacitor

Resistor

Min.

0.01µF

Typ.

Max.

1.0µF

10k

Purpose

100

0.1µF

1.0k

0.1µF

For voltage ﬂuctuation, For ESD

For voltage ﬂuctuation

Current limit for charger reverse connection

For exogenous noise

Current detection resistance

For exogenous noise

Rsns

20m

Capacitor

0.1µF

DFET

CFET

Nch MOS FET

Charge and discharge control

This typical application circuit and constant value do not guarantee proper operation.

Please evaluate thoroughly by actual application to set up constants.

• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.

• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

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