mm1475 Mitsumi Electronics, Corp., mm1475 Datasheet - Page 8

• Manufacturer Part Number: mm1475
• Description: Lithium-ion Battery Charge Control Microcomputer-controlled Type 1 Cell
• Manufacturer: Mitsumi Electronics, Corp.

MITSUMI
Measurement method
Current detection amp gain
ADP detection voltage H
ADP detection voltage L
Hysteresis voltage width
Hysteresis voltage width
SW1 pin input voltage H
SW2 pin input voltage H
hysteresis voltage width
SW1 pin input voltage L
SW2 pin input voltage L
ADP detection voltage H
ADP detection voltage L
V
V
Current detection amp
Current detection amp
TDET input bias current
BAT pin output voltage
CNT pin output voltage
Consumption current 1
Consumption current 2
T
SW1 pin input current
SW2 pin input current
OUT
OUT
Battery temperature
Battery temperature
input offset voltage
BAT pin leak current
OUT
detection voltage
detection voltage
Reference voltage
1 pin output voltage
2 pin output voltage
output current
Current limit 1
Current limit 2
pin output voltage
Item
Lithium-Ion Battery Charge Control (microcomputer-controlled type) (1 cell) MM1475
(Except where otherwise indicated, Ta = 25°C, Vcc = 5V, V
V1 = V2 = 0V, V13 = 4.2V, S10, 11, 12, 17, 19, 20, 24:A, timer time is not up)
Measure A18 current value I
Measure A18 current value I
Measure T5 potential V
Gradually lower V
0.5V is V
Gradually lower V
0.5V is V
Gradually raise V
0.5V is V
Gradually lower V
0.5V is V
Measure A13 current value I
Gradually raise V13 from 3.5V. T13 potential when T15-T14 potential
difference is 20mV or less is V
Gradually raise V17 from 0V when V13 = 3.5V and S17: B. T17 potential when
A17 current value reaches 20mA is V
Measure A1 current value I
Change V1 from 0V to 1.2V when V13 = 3.5V and V2 = 1.2V. To identify V
and L, when A13 is over 50mA, charging is ON at current limit 2, and when A13
is 1mA or under, charging is OFF.
Measure A2 current value I
Change V2 from 0V to 1.2V when V13 = 3.5V. To identify V
A13 is over 450mA, charging is ON at current limit 1, and when A13 is 1mA or
under, charging is OFF.
Gradually raise V
potential difference VL1.
V13 = 2.5V, V1 = V2 = 1.2V, and T15-T14 potential difference is V
T15-T14 potential difference fluctuation is Va and T10 potential fluctuation is
200mA.
G
T10 potential is Vb2 when V13 = 4.0V and V
V
Measure A10 current value when V13 = 3.5V, V
S10: B and V10 = 0V.
Gradually raise V20 from 0V when S20: B. T20 potential when A20 current
value is 0.12mA is V
Gradually raise V19 from 0V when S19: B. V19 potential when A19 current
value is 0.12mA is V
At S12:B, lower gradually from V12 = 0V. T12 potential is V
potential falls below 0.3V.
At S12:B, lower gradually from V12 = 0V. T12 potential is V
potential goes above 0.8V. V
Raise V11 gradually from 0V when S12:B, V12 = 0V, S11:B. T11 potential is
V
Measure A12 current value I
OFF
TOUT
I
=20log
Vb when V13 = 3.5V and V
=Vb2/8-30mV
when A11 current value is 0.12mA.
ADPL
ADPL2
ADPH
ADPH2
Vb/ Va
.
.
. V
. V
ADPLW
ADPHW
CC
CC
CC
CC
CC
from 5V. V
current limit value when V13 = 3.5V, and measure T15-T14
OUT1
OUT2
from 5V. V
from 2V. V
from 7V. V
=V
=V
REF
.
.
ADPL2
ADPH
.
SW1
SW2
Measurement method
CC1
CC2
BAT
T
CC
TDETW
-V
-V
for S12:B, V12 = 0V.
BAT
.
.
CC
.
current limit value is changed from 100mA to
when V1 = V2 = 1.2V.
CC
CC
ADPL
CC
when V
ADPH2
.
potential when T20 potential goes over V
potential when T19 potential goes over V
potential when T19 potential drops below
potential when T20 potential drops below
= V
CNT
TDET2
CC
.
= 0V, S17: B, V17 = 0V.
CC
- V
current limit value is 100mA.
TDET
CC
current limit value is 300mA,
SW2
CC
TDET
TDET2
: current limit 0.5A,
H and L, when
when T11
L2
when T11
.
SW1
CC
CC
H
-
-