S-8424AAAFT-TB-X Datasheet, PDF (7/46 Pages) Seiko Instruments Inc – BATTERY BACKUP SWITCHING IC

Rev.3.0_01
BATTERY BACKUP SWITCHING IC
S-8424A Series
 Electrical Characteristics
1. S-8424AAAxx
Parameter
Output voltage 1
Dropout voltage 1
Load stability 1
Input stability 1
Output voltage temperature coefficient 1
Output voltage 2
Dropout voltage 2
Load stability 2
Input stability 2
Output voltage temperature coefficient 2
Primary power input voltage
CS detection voltage
CS release voltage
RESET detection voltage
RESET release voltage
PREEND detection voltage
PREEND release voltage
Operating voltage
Detection voltage temperature coefficient
Table 4 Electrical Characteristics
(Unless otherwise specified: Ta = 25°C)
Symbol
Conditions
Min.
Typ.
Max.
Test
Unit
Circuit
VRO
Vdrop1
ΔVRO1
ΔVRO2
ΔVRO
ΔTa • VRO
VIN = 7.2 V, IRO = 3 mA
VIN = 7.2 V, IRO = 3 mA
VIN = 7.2 V, IRO = 0.1 to 10 mA
VIN = 4 to 16 V, IRO = 3 mA
Ta = −40°C to +85°C
2.940 3.000 3.060
V
1
⎯
41
59
mV
⎯
50
100
mV
⎯
5
20
mV
⎯
±100
⎯
ppm/°C
VOUT
Vdrop2
ΔVOUT1
ΔVOUT2
ΔVOUT
ΔTa • VOUT
VIN = 7.2 V, IOUT = 23 mA
VIN = 7.2 V, IOUT = 23 mA
VIN = 7.2 V, IOUT = 0.1 to 60 mA
VIN = 4 to 16 V, IOUT = 23 mA
Ta = −40°C to +85°C
2.940
⎯
⎯
⎯
⎯
3.000
187
50
5
±100
3.060
252
100
20
⎯
V
mV
mV
mV
ppm/°C
VIN
−VDET1
+VDET1
⎯
VIN voltage detection
⎯
⎯
⎯
16
V
3.234 3.300 3.366
V
2
3.319 3.401 3.482
V
−VDET2
VOUT voltage detection
2.156 2.200 2.244
V
+VDET2
⎯
2.256 2.312 2.367
V
−VDET3
+VDET3
Vopr
Δ − VDET1
ΔTa • −VDET1
VBAT voltage detection
⎯
VIN or VBAT
Ta = −40°C to +85°C
2.548
2.682
1.7
⎯
2.600
2.748
−
±100
2.652
2.814
16
⎯
V
V
V
ppm/°C
Δ − VDET2
ΔTa • −VDET2
Ta = −40°C to +85°C
⎯
±100
⎯
ppm/°C
Δ − VDET3
ΔTa • −VDET3
Ta = −40°C to +85°C
⎯
±100
⎯
ppm/°C
Sink current
Leakage current
Switch voltage
CS output inhibit voltage
VBAT switch leakage current
VBAT switch resistance
Switch voltage temperature coefficient
CS output inhibit voltage temperature
coefficient
Current consumption
Backup power supply input voltage
ISINK
ILEAK
VSW1
VDS = 0.5 V, VIN = VBAT = 2.0 V
VDS = 16 V, VIN = 16 V
RESET
PREEND
CS
VBAT = 2.8 V, VIN voltage detection
VSW2
ILEAK
RSW
∆VSW1
∆Ta • VSW1
∆VSW 2
∆Ta • VSW2
ISS1
IBAT1
IBAT2
VBAT
VBAT = 3.0 V, VOUT voltage detection
VIN = 3.6 V, VBAT = 0 V
VIN = Open, VBAT = 3.0 V, IOUT = 10 to 500 μA
Ta = −40°C to +85°C
Ta = −40°C to +85°C
VIN = 3.6 V, VBAT = 3.0 V, Unload
VIN = Open, VBAT = 3.0 V, Unload
⎯
Ta = 25°C
Ta = 85°C
1.50
2.30
⎯
mA
3
1.50
2.30
⎯
mA
1.50
2.30
⎯
mA
⎯
⎯
0.1
μA
+VDET1 +VDET1 +VDET1
V
4
× 0.83 × 0.85 × 0.87
VOUT
VOUT
VOUT
V
5
× 0.93 × 0.95 × 0.97
⎯
⎯
0.1
μA
6
⎯
30
60
Ω
7
⎯
±100
⎯
ppm/°C
4
⎯
±100
⎯
ppm/°C
5
⎯
7
15
μA
8
⎯
0.26
0.50
μA
⎯
1.0
2.1
μA
⎯
⎯
3.5
μA
1.7
⎯
4.0
V
7
Remark The number in the Test Circuit column corresponds to the circuit number in the “Test Circuit”section.
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