S-8243AACFT-TB-X Datasheet, PDF (9/35 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

Rev.3.1_00
BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK
S-8243A/B Series
2. S-8243B Series
Table 7 (1 / 2)
(Ta = 25°C unless otherwise specified)
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit Test circuit
DETECTION VOLTAGE
Overcharge detection voltage n
n = 1, 2, 3, 4
V_CUn
3.9 V to 4.4 V, 50 mV Step
V_CUn
−0.025
V_Cun
V_CUn
+0.025
V
4
Overcharge hysteresis voltage n
n = 1, 2, 3, 4
V_HCn
−0.10 V to −0.40 V, and 0 V
V_HCn
−0.05
V_HCn
V_HCn
+0.05
V
4
Overdischarge detection voltage
n = 1, 2, 3, 4
V_DLn
2.0 V to 3.0 V, 100 mV Step
V_DLn
−0.08
V_DLn
V_DLn
+0.08
V
4
Overdischarge hysteresis voltage
n = 1, 2, 3, 4
V_HDn
0.15 V to 0.70 V, and 0 V
V_HDn
−0.10
V_HDn
V_HDn
+0.10
V
4
Overcurrent detection voltage 1
V_IOV1
0.05 V to 0.3 V, 50 mV Step
VM voltage based on V_DD
Overcurrent detection voltage 2 V_IOV2 VM voltage based on V_DD
Overcurrent detection voltage 3 V_IOV3 −
V_IOV1
−0.025
V_IOV1
V_IOV1
+0.025
V
4
0.40
0.50
0.60
V
4
V_DD
×0.425
V_DD
×0.5
V_DD
×0.575
V
4
Temperature coefficient for
detection and release voltage^*1
T_COE1 Ta = −5°C to +55°C^*3
−1.0
0
1.0
mV/°C
4
Temperature coefficient for
overcurrent detection voltage^*2
T_COE2 Ta = −5°C to +55°C^*3
−0.5
0
0.5
mV/°C
4
0 V BATTERY CHARGING FUNCTION (The 0 V battery function is either "0 V battery charging is allowed." or "0 V battery charging is inhibited."
depending upon the product type.)
0 V battery charge starting charger
voltage
V_0CHA
0 V battery charging allowed
−
0.8
1.5
V
7
0 V battery charge inhibition battery
voltage
V_0INH
0 V battery charging inhibited
0.4
0.7
1.1
V
7
INTERNAL RESISTANCE
Internal resistance between
VMP and VDD
R_VDM V1 = V2 = V3 = V4 = 3.5 V
500
1100
2400
kΩ
8
Internal resistance between
VMP and VSS
R_VSM V1 = V2 = V3 = V4 = 1.8 V
300
700
1500
kΩ
8
VOLTAGE REGULATOR
Output voltage
V_OUT V_DD = 14V, I_OUT = 3 mA
3.221
3.300
3.379
V
2
Line regulation
ΔV_OUT1 V_DD = 6 V→18 V, I_OUT = 3 mA
−
5
15
mV
2
Load regulation
ΔV_OUT2 V_DD = 14 V, I_OUT = 5 μA→3 mA
−
15
30
mV
2
BATTERY MONITOR AMP
Input offset voltage n
n = 1, 2, 3, 4
V_OFFn V1 = V2 = V3 = V4 = 3.5 V
60
165
270
mV
3
Voltage gain n
n = 1, 2, 3, 4
GAMPn V1 = V2 = V3 = V4 = 3.5 V
0.2×0.99
0.2
0.2×1.01 ⎯
3
INPUT VOLTAGE, OPERATING VOLTAGE
Operating voltage between
V_DD and V_SS
CTL1 input voltage for High
CTL1 input voltage for Low
CTLn input voltage for High
n = 2, 3, 4
V_DSOP
V_CTL1H
V_CTL1L
V_CTLnH
−
6
−
18
V
4
−
V_DD×0.8
−
−
V
6
−
−
−
V_DD×0.2
V
6
−
V_OUT×0.9
−
V_OUT
V
3, 6
CTLn input voltage for Low
n = 2, 3, 4
V_CTLnL
−
−
−
V_OUT×0.1
V
3, 6
9