mm1433 Mitsumi Electronics, Corp., mm1433 Datasheet - Page 13

• Manufacturer Part Number: mm1433
• Description: Lithium-ion Battery Charge Control
• Manufacturer: Mitsumi Electronics, Corp.

MITSUMI
MITSUMI
Measurement Procedures
Re-charge detection voltage
CHGSW pin input voltage H
Pre-charge detection voltage
CHGSW pin input voltage L
Low voltage detection voltage
Low voltage detection voltage
Overvoltage detection voltage
RESET pin input voltage H
RESET pin input voltage L
Pre-charge detection voltage
CHGSW pin input current
LED R pin output voltage
LED G pin output voltage
Hysteresis voltage width
ADP detection voltage H
ADP detection voltage H
Hysteresis voltage width
Hysteresis voltage width
Hysteresis voltage width
ADP detection voltage L
ADP detection voltage L
RESET pin input current
TDET input bias current
BAT pin output voltage
CNT pin output voltage
ADP Ldetection output
Consumption current
Full charge detection
BAT pin leak current
detection voltage L1
detection voltage L2
Battery temperature
Battery temperature
Battery temperature
detection voltage H
Reference voltage
Impedance for
Current limit 1
Current limit 2
Item
V1 = 1.2V. Measure A18 current value I
Measure T5 potential V
Gradually lower Vcc from 5V; V
below 0.5V.
Gradually lower V
goes over V
Gradually increase Vcc from 5V. Vcc potential is VADPH when T20 potential
drops below 0.5V.
Gradually lower V
goes over V
V
V
Gradually lower V13 from 3.5V. T13 potential is V
difference falls to less than 20mV.
V13 = 3.5V, SW17: B. Gradually raise V17 from 0V. T17 potential is V
A17 current value 20mA.
Measure A1 current value I
V13 = 3.5V. Raise V1 from 0V to 1.2V. CHGSW: ON when A13 is more than
500mA. CHGSW: OFF when A13 is less than 1mA. Measure V
Measure A2 current value I
V13 = 3.5V. Raise V2 from 0V to 1.2V. Charging control circuit: ON when A13 is more
than 500mA. Charging control circuit: OFF when A13 is less than 1mA. Measure V
V13 = 3.5V. T15-T13 potential difference is V
V13 = 3.5V. T15-T13 potential difference is V
SW24: B, I15 = 100mA. Gradually reduce I15 current value after reset. T15 -
T13 potential difference is V
Gradually raise V13 from 0V. T13 potential is V
over 50mA.
Gradually lower V13 from 2.5V. T13 potential is V
goes over 10mA. V
Gradually raise V13 from 2.5V. T13 potential is V
goes over 500mA.
Gradually lower V13 from 3.5V. T13 potential is V
goes under 150mA. V
Wait about 1s at V13 = 4.2V; in full charge detection state, gradually lower V13
potential to lower T21 potential to under 0.5V. T13 potential is V
potential is more than V
Gradually raise V13 from 4V. T13 potential is V
repeat HI/LOW.
V13 = 3.5V, SW12: B. Gradually raise V12 from 0.6V. T12 potential is V
when A13 current value goes under 1mA.
V13 = 3.5V, SW12: B. Gradually raise V12 from 0V. T12 potential is V
A13 current value goes over 500mA.
V13 = 3.5V, SW12: B. Gradually raise V12 from 0.6V. T12 potential is V
when A13 current value goes over 1mA.
SW12: B, V12 = 0V. Measure A12 current value IT.
V13 = 3.5V, SW22: B. Gradually raise V22 from 0V. T22 potential is V
when A22 current value is 10mA.
Wait about 1s at V13 = 4.27V; in full charge detection state, make T21 potential
0.5V or less. Next at SW21: B, gradually raise V21 from 0V. T21 potential is
V
CC
CC
LEDG
= 7V, SW20: B, V20 - 0.5V, impedance between T20-GND is Z
= 0V, SW17: B, V17 = 0V. Measure A13 current value I
when A21 current value is 10mA.
(Except where noted otherwise, Ta = 25°C, V
SW12, 17, 20, 22, 24:A, I15=0mA Timers are not in time up state.)
CC
CC
- 0.5V. V
- 0.5V. V
CC
CC
Lithium-Ion Battery Charge Control (1 to 2 cells) MM1433
LVW
- from 2V. V
from 7V. V
PW
= V
REF
ADPLW
ADPHW
CC
= V
Measurement Procedures
.
LV
- 0.5V.
SW
RE
P
F
= V
- V
.
= V
.
when T21 potential goes under 0.5V.
= V
CC
P2
CC
LV2
ADLP2
ADPH
CC
- potential is V
potential is V
- potential is V
- V
- V
CC
ADPL
ADPH2
.
L1
L2
.
.
LV
OV
ADPH2
ADPL
P
when A13 current value goes
BAT
LV2
P2
when T22 potential starts to
ADPL2
when A13 current value
CC
when A13 current value
when A13 current value
when T20 potential drops
when T20 potential
when T15 - T13 potential
=5V, V1=V2=0V, V13=4.2V,
when T20 potential
BAT
SW
.
.
R
ADPL
when T21
.
CNT
TL1
LEDR
TH
TL2
when
when
RE
.