IC for Control of Lithium-ion Betteries Charging MM1438
MITSUMI
(Ta=25°C)
Absolute Maximum Ratings
Item
Symbol
TSTG
Ratings
-40~+125
Unit
°C
°C
V
Storage temperature
Operating temperature
Power supply voltage
CFL pin input voltage
SW input voltage
TOPR
-
-
-
20~+70
0.3~+18
0.3~+13
VCC max.
VCEL max.
VSW
V
-
0.3~VCC+0.3
V
Allowable loss
Pd
300
mW
Recommended Operating Conditions
Item
Symbol
Ratings
Unit
°C
V
Operating temperature
Charging control operating voltage
TOPR
-20~+70
VOPR
2.5~+17
Note: Operating voltage minimum value is during rated current control.
(Except where noted otherwise, Ta=25°C, VCC=5V, SW3 : A, SW6 : A, SW7 : A)
Electrical Characteristics
Item
Symbol
Measurement conditions
VSW1=VSW2=0V (Charge : ON)
VSW1=VSW2=VCC (Charge : OFF)
Ta=25°C
Min. Typ. Max. Unit
Consumption current 1
Consumption current 2
Output voltage 1
ICC1
ICC2
VO1
VO2
VCL
250 400
10
4.100 4.125 4.150
4.095 4.125 4.155
µA
µA
V
2
Output voltage 2
Ta=0~50°C
V
Current limit
90
100 110 mV
Inflow current between
CEL-CS during operation
Leak current between CEL-CS
SW1 input current
ICEL1
3.0
5.0
7.0
µA
ICEL2
ISW1
VL1
VH1
LV
ISW2
VL2
VH2
VCC=0V or OPEN
0.01
20
1
30
2.0
CC+0.3
µA
µA
V
V
V
µA
V
V
SW1 input voltage L
SW1 input voltage H
Low voltage detection voltage
SW2 input current
Charge : ON
Charge : OFF
-0.3
V
CC
-0.1
V
2.0 2.15 2.3
20
30
2.0
CC+0.3
SW2 input current L
SW2 input current H
Low voltage detection
output leak current
Low voltage detection circuit: ON
Low voltage detection circuit: OFF
-0.3
V
CC
-1.0
V
ILV
0.5
0.4
µA
Low voltage detection
output saturation voltage
EXT pin inflow current
EXT pin output voltage
VLV
ISINK=1mA
0.2
20
V
IEXT
VEXT
10
0.3
mA
V
For no load
VCC-0.3
Note 1: Please insert a capacitor of several µF between power supply and ground when using.
Note 2: Be sure that CS pin potential does not fall below 0.5V.
-
Note 3: If the IC is damaged and control is no longer possible, its safety can not be guaranteed. Please
protect with something other than this IC.
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
