LT3710 データシートの表示（PDF） - Linear Technology
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LT3710 Datasheet PDF : 12 Pages
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LT3710
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 11V, operating maximum VCC = 24V, no load on any outputs
unless otherwise noted.
PARAMETER
Oscillator
Switching Frequency
Synchronization Frequency Range
CSET Ramp Valley Voltage
CSET Peak-to-Peak Voltage
Synchronization Pulse Threshold on SYNC Pin
Maximum Duty Cycle
Gate Drivers (TGATE, BGATE)
VGBIAS
VTGATE High (VTGATE – VSW)
VBGATE High
VTGATE Low (VTGATE – VSW)
VBGATE Low
Peak Gate Drive Current
Gate Drive Rise and Fall Time
CONDITIONS
CS = 500pF (No SYNC)
CS = 333pF (No SYNC)
CS = 500pF
CS = 333pF
CS = 1000pF (No SYNC)
CS = 1000pF (No SYNC)
Falling Edge VSYNC
VFB = VREF – 5mV, CS > 500pF
IGBIAS < 25mA
ITGATE < 50mA, VBOOST = VGBIAS – 0.5V
IBGATE < 50mA
ITGATE < – 50mA
IBGATE < – 50mA
10nF Load
1nF Load
MIN TYP MAX UNITS
q 170
200
240
kHz
q 240
280
340
kHz
q 245
q 345
400
kHz
500
kHz
0.90 1.15
1.4
V
2.4
V
2.5
V
q 85
90
%
q 7.5
8.0
8.5
V
q5
6
7
V
q5
6
7.5
V
q
0.5
V
q
0.5
V
1
A
25
ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3710E is guaranteed to meet performance specifications
from 0°C to 125°C. Specifications over the – 40°C to 125°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
TYPICAL PERFOR A CE CHARACTERISTICS
VGBIAS vs IGBIAS over Junction
Temperature
8.1
–40°C
8.0
25°C
7.9
7.8
7.7
0
125°C
10
20
26
IGBIAS (mA)
3710 G01
ICC vs VCC (Switching Off)
13
TA = 25°C
12
11
10
9
8
7
6
5
8 10 12 14 16 18 20 22 24
VCC (V)
3710 G02
Voltage Amplifier VA Gain and
Phase
120
–0
TA = 25°C
GAIN
80
(–111°)
–50
PHASE
40
–100
0
–150
0dB, 10MHz
–20
–180
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
3710 G03
3710f
3
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