MM3723CL3LRE [MITSUMI]
High-accuracy overcharge detection;型号: | MM3723CL3LRE |
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)
12
Vdet3, Vdet4 Accuracy
10
8
6
4
2
0
0
10
20
30
40
50
60
70
80
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)
1
MM3723 Series
Pin assignment
WLCSP-6B
Pin no.
A1
Symbol
V-
Function
Negative power supply voltage input terminal
Charge FET control terminal
(Top view)
=ꢀ
*6<;
=++
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢆ
+6<;
=::
A2
COUT
VDD
B1
Positive power supply voltage input terminal
Test mode control terminal
B2
TEST
VSS
;,:;
C1
Negative power supply voltage input terminal
Discharge FET control terminal
C2
DOUT
Detection / Release voltage
LINE UP
Detection / Release voltage
Protedtion mode latch function
Product name
Package
Vdet1 Vrel1 Vdet2 Vrel2 Vdet3 Vdet4 Vshort
V
V
V
V
V
V
V
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
A
B
Disable
Disable
Enable
Enable
Disable
Disable
*1
Delay time
Function
tVdet1
ms
tVdet2
ms
tVdet3
ms
tVdet4
ms
tshort1
µs
A
B
1.0
96
12
10
300
1.0
96
24
20
650
Please inquire to us, if you request a rank other than the above.
MITSUMI ELECTRIC CO., LTD.
2
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