LTC2932I 查看數據表（PDF） - Linear Technology
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LTC2932I
Linear Technology
LTC2932I Datasheet PDF : 16 Pages
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LTC2932
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, unless otherwise specified. (Note 3)
SYMBOL
VRT25
VRT18
VRT15
VRTA
VRTAN
VREF
VPG
IVPG
IV1
IV2
IV3
IV4
IV5, IV6
ICRT(UP)
ICRT(DN)
ICOMPn
tRST
tUV
VOL
VOH
PARAMETER
2.5V, 5% Reset Threshold
2.5V, 7.5% Reset Threshold
2.5V, 10% Reset Threshold
2.5V, 12.5% Reset Threshold
1.8V, 5% Reset Threshold
1.8V, 7.5% Reset Threshold
1.8V, 10% Reset Threshold
1.8V, 12.5% Reset Threshold
1.5V, 5% Reset Threshold
1.5V, 7.5% Reset Threshold
1.5V, 10% Reset Threshold
1.5V, 12.5% Reset Threshold
ADJ, 5% Reset Threshold
ADJ, 7.5% Reset Threshold
ADJ, 10% Reset Threshold
ADJ, 12.5% Reset Threshold
–ADJ Reset Threshold
Reference Voltage
Mode Selection Voltage Range
VPG Input Current
V1 Input Current
V2 Input Current
V3 Input Current
V4 Input Current
V5, V6 Input Current
CRT Pull-Up Current
CRT Pull-Down Current
COMPn Pull-Up Current
Reset Timeout Period
Vn Undervoltage Detect to RST or
COMPn
Voltage Output Low RST, COMPn
Voltage Output High RST, COMPn
(Note 5)
CONDITIONS
MIN
V2, V3 Input Threshold
● 2.300
● 2.238
● 2.175
● 2.113
V3, V4 Input Threshold
● 1.656
● 1.611
● 1.566
● 1.521
V3, V4 Input Threshold
● 1.380
● 1.343
● 1.305
● 1.268
V3, V4, V5, V6 Input Threshold
● 492.5
● 479.4
● 466.3
● 453.1
V4 Input Threshold
● –18
VCC ≥ 2.3V, IVREF = ±1mA, CREF ≤ 1000pF
T0 Low, T1 Low
● 1.192
T0 Low, T1 High
● 1.160
T0 High, T1 Low
● 1.128
T0 High, T1 High
● 1.096
VCC ≥ VCCMINP
VPG = VREF
V1 = 5V, IVREF = 12μA (Note 4)
V2 = 3.3V
●
0
●
●
●
V3 = 2.5V
●
V3 = 0.55V (ADJ Mode)
●
V4 = 1.8V
●
V4 = 0.55V (ADJ Mode)
●
V4 = –0.02V (–ADJ Mode)
●
V5, V6 = 0.55V
●
VCRT = GND
VCRT = 1.3V
VCOMPn = GND
CRT = 1500pF
Vn Less Than Reset Threshold by More
than 1%
● –1.4
● 10
● –2
●
2
ISINK = 3mA, VCC = 3V
ISINK = 100μA, VCC = 1V
ISOURCE = –1μA
●
●
● V2-1
TYP
2.338
2.275
2.213
2.150
1.683
1.638
1.593
1.548
1.403
1.365
1.328
1.290
500.0
486.6
473.3
459.9
0
MAX
2.375
2.313
2.250
2.188
1.710
1.665
1.620
1.575
1.425
1.388
1.350
1.313
507.5
494
480.4
466.8
18
1.210
1.178
1.146
1.113
52
0.8
0.52
0.34
–2
20
–6
3
150
1.228
1.195
1.163
1.130
VREF
±20
75
2
1.2
±15
0.8
±15
±15
±15
–2.6
30
–12
4
0.15
0.4
0.05
0.3
UNITS
V
V
V
V
V
V
V
V
V
V
V
V
mV
mV
mV
mV
mV
V
V
V
V
V
nA
μA
μA
μA
nA
μA
nA
nA
nA
μA
μA
μA
ms
μs
V
V
V
2932fb
3
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