LTC2930H データシートの表示（PDF） - Linear Technology
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LTC2930H Datasheet PDF : 12 Pages
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LTC2930
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
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
IV1
V1 Input Current
V1 = 5V, IVREF = 12μA (Note 4)
●
52
75
μA
IV2
V2 Input Current
V2 = 3.3V
●
0.8
2
μA
IV3
V3 Input Current
V3 = 2.5V
V3 = 0.55V (ADJ Mode)
●
0.52
1.2
μA
●
±15
nA
IV4
V4 Input Current
V4 = 1.8V
V4 = 0.55V (ADJ Mode)
V4 = –0.02V (–ADJ Mode)
●
0.34
0.8
μA
●
±15
nA
●
±15
nA
IV5, IV6
V5, V6 Input Current
V5, V6 = 0.55V
●
±15
nA
ICRT(UP)
CRT Pull-Up Current
VCRT = GND
● –1.4
–2
–2.6
μA
ICRT(DN)
CRT Pull-Down Current
VCRT = 1.3V
● 10
20
30
μA
tRST
tUV
VOL
VOH
VIL
VIH
tMRW
Reset Timeout Period
CRT = 1500pF
●
2
3
4
ms
Vn Undervoltage Detect to RST
Vn Less Than Reset Threshold by More
than 1%
150
μs
Voltage Output Low RST
Voltage Output High RST (Note 5)
ISINK = 3mA, VCC = 3V
ISINK = 100μA, VCC = 1V
ISOURCE = –1μA
●
0.15
0.4
V
●
0.05
0.3
V
● V2-1
V
MR Input Threshold Low
VCC = 3.3V to 5.5V
●
0.4
V
MR Input Threshold High
VCC = 3.3V to 5.5V
● 1.6
V
MR Input Pulse Width
VCC = 3.3V
● 150
ns
tMRD
Manual Reset Propagation Delay
VCC = 3.3V, VMR Falling
IMR
MR Pull-Up Current
VMR = 1V
●
0.1
1
μs
● –4
–10
–16
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device reliability
and lifetime.
Note 2: All currents into pins are positive, all voltages are referenced to GND
unless otherwise noted.
Note 3: The greater of V1, V2 is the internal supply voltage (VCC).
Note 4: Under static no-fault conditions, V1 will necessarily supply quiescent
current. If at any time V2 is larger than V1, V2 must be capable of supplying
the quiescent current, programming (transient) current and reference load
current.
Note 5: The output pin RST has a diode protected internal pull-up to V2 of
typically 6μA. However, an external pull-up resistor may be used when faster
rise times are required or for VOH voltages greater than V2.
TIMING DIAGRAM
Vn
VRT
tUV
RST
MR
Vn Monitor Timing
tRST
tMRD
tRST
tMRW
2930 TD
2930fa
3
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