MM3723CL4LRE [MITSUMI]

High-accuracy overcharge detection;


型号：	MM3723CL4LRE
厂家：	MITSUMI ELECTRONICS, CORP.
描述：	High-accuracy overcharge detection
文件：	总2页 (文件大小：229K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MM3723 Series

High-accuracy overcharge detection

Outline

The MM3723 series integrates into 1.09mm × 0.81mm × 0.46mm

WLCSP Package. It's using high voltage CMOS process for

overcharge, overdischarge and overcurrent protection of the

rechargeable Lithium-ion and Lithium-polymer battery. The

overcharge, overdischarge, discharging overcurrent, charging

overcurrent and short protection of the rechargeable one-cell

Lithium-ion and Lithium-polymer battery can be detected.

Features

(Unless otherwise speciﬁed, Ta=25°C)

(1) Range and accuracy of detection/release voltage

Overcharge detection voltage............................ Vdet1 ...... 3.6V to 4.6V, 5mV steps................. Accuracy±12mV

Accuracy±20m(Ta=-20 to +60°C)

Overdischarge detection voltage....................... Vdet2 ...... 2.0V to 3.0V, 50mV steps............... Accuracy±35mV

Discharging overcurrent detection voltage........ Vdet3 ...... 20mV to +100mV, 1mV steps........... Accuracy±∆V *1

Charging overcurrent detection voltage ............ Vdet4 ...... -100mV to -20mV, 1mV steps .......... Accuracy±∆V *1

Short detection voltage1.................................... Vshort ..... 100mV to 300mV,10mV steps ...........Accuracy±8%

*1 Accuracy of overcurrent detection voltage (Ta=25°C)

Vdet3, Vdet4 Accuracy

90 100

Overcharge detection voltage [mV]

(2) Range of detection delay time

Overcharge detection delay time.......................Selection from 1.0s, 1.2s, 4.0s

Overdischarge detection delay time ..................Selection from 20ms, 24ms, 32ms, 96ms, 128ms

Discharging overcurrent detection delay time ...Selection from 8ms, 12ms, 16ms, 20ms, 256ms, 512ms

Charging overcurrent detection delay time........Selection from 4ms, 6ms, 8ms, 10ms, 12ms, 16ms, 96ms

Short detection delay time.................................Selection from 250µßs to 400µs

(3) 0V battery charge function ....................................Selection from “Permission” or “Prohibition”

(4) Low current consumption (Not include NTC bias current)

Normal mode .....................................................Typ. 2.5µA, Max. 4.0µA

Stand-by mode..................................................Max. 0.1µA (Overdischarge latch function Enable)

Max. 0.6µA (Overdischarge latch function Disable)

MM3723 Series

Pin assignment

WLCSP-6B

Pin no.

Symbol

V-

Function

Negative power supply voltage input terminal

Charge FET control terminal

(Top view)

=ꢀ

*6<;

=++

ꢁ

ꢂ

ꢃ

ꢄ

ꢅ

ꢆ

+6<;

=::

COUT

VDD

Positive power supply voltage input terminal

Test mode control terminal

TEST

VSS

;,:;

Negative power supply voltage input terminal

Discharge FET control terminal

DOUT

Detection / Release voltage

LINE UP

Detection / Release voltage

Protedtion mode latch function

Product name

Package

Vdet1 Vrel1 Vdet2 Vrel2 Vdet3 Vdet4 Vshort

MM3723CL3LRE WLCSP-6B Permission 4.425 4.225 2.300 2.300 0.060 -0.020 0.150

MM3723CL4LRE WLCSP-6B Permission 4.475 4.275 2.200 2.200 0.070 -0.030 0.200

Disable

Enable

Disable

Delay time

Function

tVdet1

tVdet2

tVdet3

tVdet4

tshort1

µs

1.0

300

1.0

650

Please inquire to us, if you request a rank other than the above.

MITSUMI ELECTRIC CO., LTD.

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