MITSUMI
Lithium-Ion Battery Charge Control (1 cell) MM1333
Lithium-Ion Battery Charge Control (1 cell)
Monolithic IC MM1333
Outline
This IC was developed for lithium-ion battery charge control. It controls charging with an external PNP power
transistor or p-MOSFET. It is used only for 1-cell batteries and provides a high-precision charge voltage.
Charge current can be set with an external resistor. In addition, it includes the functions of MM1332
(conventional IC) and incorporates a comparator for full-charge detection.
Features
1. Output voltage 1 (Ta=25°C) 4.100V±35mV
2. Output voltage 2 (Ta=0°C~+40°C) 4.100V±50mV
3. Constant-current output Current limit 100mV±10mV
Constant current value = current limit/external resistance
4. Low voltage (LV) detection function 2.00V±100mV
5. Full-charge detection function Detection voltage 31mV±5mV
Package
VSOP-8A (MM1333 W)
Note: The box represents an output (charge) voltage rank.
Application
Lithium-ion battery chargers
MITSUMI
Package
VSOP-8A
DW
4.200±0.050
D20±3 1cell
MM1333 HW
4.100±0.050
D31±5 1cell
JW
4.200±0.050
D31±5 1cell
Output
voltage (V)
Output voltage
temperature
conditions
Full charge
detection
voltage (mV)
Over voltage
detection
voltage (v)
Remarks
*
Series Table
Temperature conditions A: Ta=
-
25~75°C, B: Ta=
-
20~70°C, C: Ta=0~50°C,
D: Ta=0~40°C
Note:
*
In the case of rank D, the Co output voltage level changes to "L" when charging is turned ON. (The
function is reversed in the case of ranks H and J).
Phased Out Products
MITSUMI
Lithium-Ion Battery Charge Control (1 cell) MM1333
Pin Assignment
1432
8567
VSOP-8A
1 SW
2 CO
3 GND
4 CS2
5 CS1
6 CEL
7 EXT
8 V
CC
Block Diagram
1
8 7 6 5
2 3 4
+B
-B
BATTERY
PACK
R3
R4
0.10V
0.031V
J:4.2V
H:4.1V
2V
1.2V
BUF
1
87 6 5
234
+B
-B
BATTERY
PACK
R3
R4
0.10V
0.020V
BUF
D:4.2V
2V
V
CC
CO2
C
O Pin Part
200
GND
200
2
1.2V
MM1333J, H
MM1333D
Phased Out Products