mm1412 Mitsumi Electronics, Corp., mm1412 Datasheet - Page 5

• Manufacturer Part Number: mm1412
• Description: Protection For Lithium-ion Batteries
• Manufacturer: Mitsumi Electronics, Corp.

MITSUMI
Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
Note 1: Overcurrent short mode delay time (overcurrent delay time 2) is IC response speed.
Note 2: Calculate overcharge dead time according to the following formula:
Overdischarge release voltage
Overdischarge detection voltage
Overcurrent detection delay time 1
Overcurrent detection delay time 2
Overcurrent detection threshold value
Overcurrent short threshold value
Overdischarge detection delay time
Overcharge detection voltage
Overcharge detection hysteresis voltage
Overcharge detection dead time
GD pin H output voltage
GD pin L output voltage
Consumption current 1
Consumption current 2
Consumption current 3
Consumption current 4
OC pin output current
VL pin input current
Overcurrent release
Start-up voltage
In actual use, the time for discharging the discharge control FET gate capacity is added.
Also, when voltage change is large due to excess current, the IC internal bias current may turn off
temporarily, causing response time to lengthen. Select the time constant for the capacitor
connected to the power supply pin so that power supply fluctuation is more than 100µs/1V.
Overcharge detection dead time: t
[C
Operating power supply voltage
TD
Item
: external capacitor, Unit:µF]
OC pin impressed voltage
CS pin impressed voltage
Operating temperature
Operating temperature
Power supply voltage
Storage temperature
Allowable loss
Item
Item
Symbol
V
V
I
V
V
t
t
t
V
V
I
I
I
I
V
V
t
I
OCH
OC
OC
OCH
VH1
VH2
VH3
VH4
GDH
GDL
OD
V
VL
CS1
CS2
OD
(Except where noted otherwise, Ta=25°C) Models listed MM1412A
OC
DF
ST
OC
1
2
Load release: Load of 5MEGΩ or more between both battery pack pins
When both battery pack pins are shorted
ALM
Discharge resume by voltage rise
- 5.55
Protection for Lithium-Ion Batteries (2-serial cells) MM1412
Symbol
V
V
V
Symbol
Measurement conditions
OC
CC
CS
T
V
V
T
T
V
OPR
V
Pd
V
V
H
OP
OPR
STG
max.
max.
H
max.
=V
H
H
H
=V
=V
=V
=V
Ta=0°C~50°C
C
L
V
=4.5V, R
V
L
V
V
C
L
L
L
TD
=3.5V, IL=-10µA
=1.0V V
=1.9V V
H
H
=3.5V, IL=10µA
H
H
TD
[s]
=V
=V
=V
=V
=0.18µF
*
L
L
L
L
=3.5V
=3.5V
=4.5V
1
=2.5V
OC
CS
CS
+0.9~+18
Ratings
=270kΩ
-40~+125
-20~+70
-0.6~V
-0.6~V
-0.3~+18
Ratings
=1.4V
=3.2V
-20~+70
300
CC
CC
4.325 4.350 4.375
V
-0.24 -0.12 -0.04
Min. Typ. Max. Unit
2.20
-0.3
3.30
0.35
170
135
0.5
H
30
7
8
-0.3 V
Unit
Unit
mW
°C
V
°C
°C
V
V
V
2.30
15.0
3.50
0.45
220
150
150
150
0.5
0.2
1.0
H
12
30
13
0
-0.2
2.40
20.0
3.70
0.55
270
165
100
0.1
0.8
0.3
0.3
1.5
18
20
mV
mV
ms
ms
µA
µA
µA
µA
µA
µA
µs
V
V
V
V
V
V
V
s