LTC1430 데이터 시트보기 (PDF) - Linear Technology
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LTC1430 Datasheet PDF : 16 Pages
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LTC1430
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V unless otherwise noted. (Note 2)
SYMBOL
VIH
VIL
IIN
AV
gmV
gmI
IMAX
ISS
tr, ts
tNOV
DCMAX
PARAMETER
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input Current
Error Amplifier Open-Loop DC Gain
Error Amplifier Transconductance
ILIM Amplifier Transconductance
IMAX Sink Current
Soft-Start Source Current
Driver Rise/Fall Time
Driver Non-Overlap Time
Maximum Duty Cycle
CONDITIONS
(LTC1430I)
(LTC1430C)
(LTC1430I)
(Note 5)
VI(MAX) = VCC (LTC1430C)
VI(MAX) = VCC (LTC1430I)
VSS = 0 (LTC1430C)
VSS = 0 (LTC1430I)
Figure 3, PVCC1 = PVCC2 = 5V
Figure 3, PVCC1 = PVCC2 = 5V
VCOMP = VCC (LTC1430C)
VCOMP = VCC, VFB = 0 (LTC1430I)
VCOMP = VCC, VFB = 1.265V (LTC1430I)
MIN TYP MAX
q 2.4
q
0.8
q
±0.1
±1
q
40
48
q 300
650
650 1200
1300
q
8
q
8
12
16
12
17
q –8
q –8
–12 –16
–12 –17
80
250
25
130 250
q
90
96
q
90
96
q
83
88
UNITS
V
V
µA
dB
µMho
µMho
µMho
µA
µA
µA
µA
ns
ns
%
%
%
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground unless otherwise
specified.
Note 3: This parameter is guaranteed by correlation and is not tested
directly.
Note 4: Supply current in normal operation is dominated by the current
needed to charge and discharge the external FET gates. This will vary with
the LTC1430 operating frequency, operating voltage and the external FETs
used.
Note 5: The ILIM amplifier can sink but cannot source current. Under
normal (not current limited) operation, the ILIM output current will be zero.
3
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