mm1485 Mitsumi Electronics, Corp., mm1485 Datasheet - Page 7

• Manufacturer Part Number: mm1485
• Description: Lithium-ion Battery Charge Control
• Manufacturer: Mitsumi Electronics, Corp.

MITSUMI
MITSUMI
Measurement Procedures
voltage hysteresis voltage width
voltage hysteresis voltage width
Current detection amp gain
Battery temperature detection
Battery temperature detection
ADP detection voltage H
ADP detection voltage L
hysteresis voltage width
hysteresis voltage width
SW1 pin input voltage H
SW2 pin input voltage H
SW1 pin input voltage L
SW2 pin input voltage L
ADP detection voltage H
ADP detection voltage L
V
Current detection amp
Current detection amp
V
output current outflow
BAT pin output voltage
CNT pin output voltage
Consumption current 1
Consumption current 2
T
T
SW1 pin input current
SW2 pin input current
OUT1
output offset voltage
OUT2
BAT pin leak current
OUT
DET
Reference voltage
Current limit 1
Current limit 2
pin output voltage
input bias current
pin output voltage
pin output voltage
Item
Measure A13 current value I
Measure A13 current value I
Measure T3 potential V
Gradually lower V
above V
Gradually raise V
under 0.5V. V
Gradually raise V
above V
Gradually lower V
under 0.5V. V
V
Gradually raise V9 from 3.5V. T9 potential is V
between T13-T12 is 20mV or less.
V9 = 3.5V, S11: B. Gradually raise V11 from 0V. T11 potential is V
current value is 20mA.
Measure A1 current value I
V9 = 3.5V, V2 = 1.2V. Raise V1 from 0V to 1.2V. Identify V
is 50mA or higher, charging ON at current limit 2, and when A9 is 1mA or
lower, charging is OFF.
Measure A2 current value I
V9 = 3.5V. Raise V2 from 0V to 1.2V. Identify V
or higher, charging ON at current limit 1, and when A9 is 1mA or lower,
charging is OFF.
V9 = 3.5V. Gradually raise V
difference between T13-T12, V
V9 = 2.5V, V1 = V2 = 1.2V. Potential difference between T13-T12 is V
V9 = 3.5V. The potential difference fluctuation between T13-T12 when V
current limit value is changed from 100mA to 200mA is Va and the T6
potential fluctuation is Vb.
G
V9 = 4.0V. T6 potential is Vb2 when V
V
V9 = 3.5V, V
current value.
S15: B. Gradually raise V15 from 0V. T15 potential is V
value is 0.12mA.
S14: B. Gradually raise V14 from 0V. T14 potential is V
value is 0.12mA.
S8: B. Gradually lower V8 from 0.6V. T8 potential is V
0.3V or under.
S8: B. Gradually raise V8 from 0V. T8 potential is V
0.8V or higher. V
S8: B, V8 = 0V, S7: B. Gradually raise V7 from 0V. T7 potential is V
A7 current value is 0.12mA.
S8: B, V8 = 0V. Measure A8 potential value I
CC
OFF
1
= 20log
= 0V, S11: B, V11 = 0V. Measure A9 current value I
= Vb2/8 - 30mV
(Except where otherwise indicated Ta = 25°C, V
0.5A, V1 = V2 = 0V, V9 = 4.2V, S6, 7, 8, 11, 14, 15: A)
CC
CC
- 0.5V.
- 0.5V.
CC
Vb/ Va
ADPHW
ADPLW
current limit value is 300mA, S6: B, V6 = 0V. Measure A6
CC
CC
TDETW
CC
CC
from 2V. V
from 5V. V
= V
from 5V. V
= V
from 7V. V
REF
ADPH
= V
ADPL2
.
Measurement Procedure
TDET2
SW1
SW2
- V
CC1
CC2
CC
- V
.
.
L1
current limit value and measure the potential
CC
CC
.
ADPH2
at V1 = V2 = 1.2V.
CC
CC
- V
ADPL
.
Lithium-Ion Battery Charge Control MM1485
potential is V
potential is V
potential is V
potential is V
TDET
.
CC
.
current limit is 100mA.
T
.
BAT
ADPL2
ADPH
SW2
ADPL
ADPH2
when the potential difference
H or L; when A9 is 450mA
when T15 potential goes
TDET2
when T14 potential goes
when T14 potential goes
when T15 potential goes
TDET
CC
OUT2
BAT
OUT1
= 5V, V
when T7 potential is
.
SW1
when T7 potential is
when A14 current
when A15 current
H or L; when A9
CC
CNT
: current limit
TOUT
L2
when A11
.
when
CC