MM1210 [MITSUMI]
Remaining Battery Power Display; 电池剩余电量显示
| 型号： | MM1210 |
| 厂家： | 
MITSUMI ELECTRONICS, CORP. |
| 描述： | Remaining Battery Power Display |
| 文件： | 总4页 (文件大小：94K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Remaining Battery Power Display MM1210
MITSUMI
Remaining Battery Power Display
Monolithic IC MM1210 Series
Outline
This IC detects battery voltage and displays the remaining power in the battery using an LCD. Long life and
light weight are emphasized in the most recent portable equipment, which increasingly use nickel cadmium
and nickel hydrogen batteries. For these batteries, the discharge characteristics mean that extremely precise
detection of the remaining battery power is required.
This IC enables detection of this type through high precision voltage detection.
Features
1. Two built-in detection voltages
2. High precision detection voltages
3. Low current consumption
1.18V / 1.06V typ.
1ꢀ typ.
During detection ; 15 µA typ.
During waiting ; 15 µA typ.
4. Setting possible during non-induction
It is possible to set a time period for which detection is ignored, as for example when voltage drops due to
temporary heavy loads.
5. Ripple absorption pins
It is possible to check fluctuations in detection through continuous rippling.
6. Built-in hysteresis voltage
Package
SOP-8D (MM1210XF)
Absolute Maximum Ratings
Item
Rating
Storage temperature
Operating temperature
Input voltage
-
-
40~+125°C
20~+70°C
5V
Output pin voltage
Allowable loss
5V
300mW
Remaining Battery Power Display MM1210
MITSUMI
(Unless otherwise specified Ta=25°C, VCC=1.5V, VCE=VCC)
Electrical Characteristics
Item
Symbol
ICC1
Measurement Conditions
VCC=1.5V
Min. Typ. Max. Unit
Current consumption
15
25
µA
µA
V
Current consumption during waiting
Detection voltage I
ICC2
VCC=1.3V, VCE=0.3V
1.5
2.5
VTH1
V TH2
VT
VCC=H
VCC=H
L
1.169 1.180 1.191
1.050 1.060 1.070
Detection voltage II
L
V
Detection voltage Difference
Detection voltage temperature factor
Hysteresis voltage
VT=VTH1
-VTH2
100 120 140 mV
200
20
PPM/°C
mV
µA
VHYS
IS1
10
40
40
35
Output sink current I
VCC=1.3V, VO1=0.3V
VCC=1.3V, V02=0.3V
ISINK=30UA
Output sink current II
IS2
µA
Output saturation voltage I
Output saturation voltage II
Output leak voltage I
VO1
V O2
ILE1
ILE2
VOPL
VCEH
ICEH
VCEL
VTHT
VTHT
IDIS
150 250 mV
150 250 mV
ISINK=30UA
VCC=1.0V, VO1=0.5V
VCC=1.0V, VO2=1.5V
VCC=variable, VO < 0.4V
1
1
µA
µA
V
Output leak voltage II
Power supply voltage operating limit
Input H voltage
0.70 0.75
-
0.3 VCC
0.3
100 300 500
0.3 0.3
V
CE pin
Input L current
Input L voltage
VCC=1.5V, VCE=0V
nA
V
-
0
Threshold value I
Threshold value II
Discharge current
Charge current
VCC=1.0V, VTC=variable
VCC=1.0V, VTC=variable
VCC=1.0V, VTC=0.5V
0.34 0.42 0.50
0.04 0.12 0.20
V
V
TC pin
30
60
90
nA
ICHA
td
VCC=1.5V, VTC=0.5V
0.40 0.80 1.20 µA
120 180 240 mS
Non-induction time
VCC=1.5V, C=0.033UF
VCC=L H, C=0.033UF
measure resistance between pins
L transmission delay time
tdLH
RRIP
1.0
70
2.0
4.0
mS
Ripple absorption resistance
8
-
6
100 130 kΩ
td1
td2
1.15V
1.00V
Note : VCC applied pulse conditions
1.25V
VCC applied pulse
GND 1.10V
Remaining Battery Power Display MM1210
MITSUMI
Timing Chart
hysteresis
hysteresis
1.20V
VS1 1.18V
1.08V
VS2 1.06V
VCC
CE pin
TC pin
G N D
0.75V
0.40V
0.05V
threshold 1
threshold 2
H
ROUT1
ROUT2
tD1
L
H
tDLH
tDLH
tD2
L
Delay time is calculated by the following formula :
tD1=tD2 (S)=CT (F) (5.4 106)
*
tDLH (S)=CT (F) (6.3 104)
CT, TC pin connection capacitance
Block Diagram, Example of Application Circuit
Output
VCC
1.18
1.06
ROUT 1
LED 2
L
H
L
H
L
H
CE pin
H
L
Operation
Waiting
Note 1 : Please connect the CE pin
to VCC when not using.
Note 2 : The Adj terminal is used in
the product inspection
process, so please do not
connect it to other wiring.
Capacitance of external capacitor for non-induction time
101
100
1S
-
-
-
-
-
1
2
3
4
5
100mS 10
10mS 10
1mS
10
0.1mS 10
0.01mS 10
-
10
-
9
-
8
-
7
-
6
10
10
10
10
10
1UF
100PF 1000PF 0.01UF 0.1UF
Remaining Battery Power Display MM1210
MITSUMI
Characteristics
Detection voltage 1
Detection voltage 2
Temperature characteristics
Temperature characteristics
(mV)
(mV)
1068
1064
1060
1056
1052
1188
1184
1180
1176
1172
-10
10
30
50
70
-10
10
30
50
70
Temperature
Temperature
Hysteresis voltage 1
Hysteresis voltage 2
Temperature characteristics
Temperature characteristics
(mV)
27
(mV)
27
24
21
18
15
12
24
21
18
15
12
-10
10
30
50
70
-10
10
30
50
70
Temperature
Temperature
Output sink current 1
Temperature characteristics
Output saturation voltage 1
Temperature characteristics
280
90
(mV)
(mV)
80
70
240
200
160
120
60
50
40
-10
10
30
50
70
-10
10
30
50
70
Temperature
Temperature
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