LTC2917 データシートの表示（PDF） - Linear Technology
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LTC2917 Datasheet PDF : 16 Pages
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LTC2917/LTC2918
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.5V, unless otherwise noted. (Note 2)
SYMBOL
VCC(MIN)
VCC(UVLO)
VCC(SHUNT)
ICC
PARAMETER
Minimum Supply Voltage
Supply Undervoltage Lockout
Shunt Regulation Voltage
VCC Pin Current
Monitor Input (VM)
CONDITIONS
RST in Correct Logic State
MIN
TYP
MAX UNITS
● 0.8
V
●
1.5
V
IVCC = 0.5mA
● 5.7
6.2
7.0
V
SEL1, SEL2, TOL, MR = Open
●
SEL1, SEL2, TOL = GND (LTC2917) ●
MR = VCC (LTC2918)
30
50
μA
45
80
μA
VMT120
12V, 5% Reset Threshold
12V, 10% Reset Threshold
12V, 15% Reset Threshold
● 11.04
11.22
11.40
V
● 10.44
10.62
10.80
V
● 9.84
10.02
10.20
V
VMT50
5V, 5% Reset Threshold
5V, 10% Reset Threshold
5V, 15% Reset Threshold
● 4.600
4.675
4.750
V
● 4.350
4.425
4.500
V
● 4.100
4.175
4.250
V
VMT33
3.3V, 5% Reset Threshold
3.3V, 10% Reset Threshold
3.3V, 15% Reset Threshold
● 3.036
3.086
3.135
V
● 2.871
2.921
2.970
V
● 2.706
2.756
2.805
V
VMT25
2.5V, 5% Reset Threshold
2.5V, 10% Reset Threshold
2.5V, 15% Reset Threshold
● 2.300
2.338
2.375
V
● 2.175
2.213
2.250
V
● 2.050
2.088
2.125
V
VMT18
1.8V, 5% Reset Threshold
1.8V, 10% Reset Threshold
1.8V, 15% Reset Threshold
● 1.656
1.683
1.710
V
● 1.566
1.593
1.620
V
● 1.476
1.503
1.530
V
VMT15
1.5V, 5% Reset Threshold
1.5V, 10% Reset Threshold
1.5V, 15% Reset Threshold
● 1.380
1.403
1.425
V
● 1.305
1.328
1.350
V
● 1.230
1.253
1.275
V
VMT12
1.2V, 5% Reset Threshold
1.2V, 10% Reset Threshold
1.2V, 15% Reset Threshold
● 1.104
1.122
1.140
V
● 1.044
1.062
1.080
V
● 0.984
1.002
1.020
V
VMT10
VMTADJ
1V, 5% Reset Threshold
1V, 10% Reset Threshold
1V, 15% Reset Threshold
ADJ (0.5V), 5% Reset Threshold
ADJ (0.5V), 10% Reset Threshold
ADJ (0.5V), 15% Reset Threshold
● 0.920
0.935
0.950
V
● 0.870
0.885
0.900
V
● 0.820
0.835
0.850
V
● 460.0
467.5
475.0
mV
● 435.0
442.5
450.0
mV
● 410.0
417.5
425.0
mV
RVM
VM Input Impedance (Note 4)
IVM(ADJ)
ADJ Input Current
Three-State Inputs (SEL1, SEL2), (TOL, LTC2917)
Fixed Threshold Modes
VM = 0.5V
● 0.5
●
8
MΩ
±15
nA
VTPIN,LOW
Low Level Input Voltage
VTPIN,HIGH
High Level Input Voltage
VTPIN,Z
Pin Voltage when Open
ITPIN,Z
Allowable Leakage in Open State
ITPIN,H/L
Pin Input Current
Reset Timer Control (RT)
I = 0μA
VTPIN = 0V, VCC
●
0.5
V
● 1.4
V
0.9
V
●
±5
μA
●
±20
μA
IRT(UP)
IRT(DOWN)
IRT(INT)
VRT(INT, LH)
RT Pull-Up Current
RT Pull-Down Current
Internal RT VCC Detect Current
RT Internal Timer Threshold
VRT = 0.25V
VRT = 1.1V
VRT = VCC
VRT Rising, Referenced to VCC
● –2
●
2
●
● –100
–3
3
1
–160
–4
4
8
–300
μA
μA
μA
mV
29178fb
4
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