MC33466 查看數據表（PDF） - ON Semiconductor
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MC33466 Datasheet PDF : 16 Pages
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MC33466
ELECTRICAL CHARACTERISTICS (VCC = 2.0 V, IO = 10 mA and TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
OSCILLATOR
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Frequency
JT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ LT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Oscillator Minimum Startup Voltage (IO = 1.0 mA)
JT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Oscillator Minimum Supply Voltage (IO = 1.0 mA)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ JT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Oscillator Startup Voltage (IO = 0 mA)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ LT1 Suffix
LX OUTPUT (JT1 SUFFIX)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ON State Sink Current (VLx = 0.4 V)
fosc
Vstart
VCC
Vstart
ILx
kHz
40
50
60
80
100
120
V
–
0.8
0.9
0.7
–
V
–
V
–
0.7
0.8
mA
30JT1 Suffix
60
–
–
33JT1 Suffix
63
–
–
50JT1 Suffix
VLx Voltage Limit (Note 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ OFF State Leakage Current (VLx = 6.0 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ EXT OUTPUT (LT1 SUFFIX)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ON State Source Current (VEXT = VO – 0.4 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 30LT1 Suffix
VLxLim
ILKG
Isource
80
–
0.65
0.8
–
–
1.5
–
–
1.0
V
0.5
µA
mA
–
33LT1 Suffix
50LT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ OFF State Sink Current (VEXT = 0.4 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 30LT1 Suffix
1.575
–
2.0
–
Isink
1.5
–
–
–
mA
–
33LT1 Suffix
1.575
–
–
ÁÁÁÁÁÁTMOO5uaT0ÁÁÁtxALpiTmLu1tuDÁÁÁVmSEouVlDtfafÁÁÁIiuCxgteEy RÁÁÁatioÁÁÁEacÁÁÁh CÁÁÁycleÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVDOÁÁÁÁÁÁÁÁÁ27.Á0ÁÁ0 ÁÁÁÁÁÁ8–0ÁÁÁÁÁÁÁÁÁ9–0ÁÁÁÁÁÁÁÁÁ%V ÁÁÁ
30JT1 or 30LT1 Suffix
2.925
3.0
3.075
33JT1 or 33LT1 Suffix
3.218
3.3
3.383
50JT1 or 50LT1 Suffix
Soft–Start Time (Note 2)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Quiescent Bias Current (IO = 0 mA)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 30JT1 Suffix (Vin = 1.8 V)
4.875
5.0
5.125
Tss
0.5
2.0
–
ms
IQ
µA
–
15
25
33JT1 Suffix
–
17
27
50JT1 Suffix (Vin = 3.0 V)
–
30
45
Quiescent Bias Current (Vin = VO + 0.5 V, IO = 0 mA)
30JT1 Suffix
–
2.0
5.0
33JT1 Suffix
50JT1 Suffix
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Quiescent Bias Current (IO = 0 mA)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 30LT1 Suffix (Vin = 1.8 V)
–
2.0
5.0
–
2.0
5.0
IQ
µA
–
30
50
33LT1 Suffix
–
34.5
56
50LT1 Suffix (Vin = 3.0 V)
–
60
90
Quiescent Bias Current (Vin = VO + 0.5 V, IO = 0 mA)
30LT1 Suffix
–
2.0
5.0
33LT1 Suffix
–
2.0
5.0
50LT1 Suffix
–
2.0
5.0
1. When the Lx switch is turned on, ILx current carried through the RDS(on) of the Lx switch results in VLx. When VLx reaches VLxLim, the Lx
switch is turned off by the Lx switch protection circuit.
2. The soft–start circuit turn–on sequence is as follows:
a) Vin is applied.
b) The internal IC Vref is held at zero for 200 µs. During this time, the error amplifier output voltage ramps up to the positive voltage rail.
c) The internal reference steps up to 0.7 V after 200 µs delay has timed out.
d) The error amplifier output voltage integrates down to its steady state value. As the error amplifier output integrates down, the output Lx
pin of EXT pin pulse width gradually widens to its steady operating value.
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