LT3782AIFE 데이터 시트보기 (PDF) - Linear Technology
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LT3782AIFE Datasheet PDF : 20 Pages
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LT3782A
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating junction
temperature range, otherwise specifications are at TA = 25°C. VCC = 13V, RSET = 80k, no load on any outputs, unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Gate Driver
VGBIAS
BGATE1, BGATE2 High Voltage
BGATE1, BGATE2 Source Current (Peak)
IGBIAS < 70mA
l 10.2
11
11.7
V
13V ≤ VCC ≤ 24V, IBGATE = –100mA
l 7.8
9.2
10.5
V
VCC = 8V, IBGATE = –100mA
l 3.8
5
V
Capacitive Load >22μF
Capacitive Load >50μF
3
A
4
A
BGATE1, BGATE2 Low Voltage
8V ≤ VCC ≤ 24V, IBGATE = 100mA
l
0.5
0.7
V
BGATE1, BGATE2 Sink Current (Peak)
Capacitive Load >22μF
Capacitive Load >50μF
3
A
4
A
SGATE1, SGATE2 High Voltage
8V ≤ VCC ≤ 24V, ISGATE = –20mA
l 4.5
5.5
6.7
V
SGATE1, SGATE2 Low Voltage
SGATE1, SGATE2 Peak Current
8V ≤ VCC ≤ 24V, ISGATE = 20mA
500pF Load
0.5
0.7
V
100
mA
Delay of BGATE High
Delay Pin Input Current
DELAY Pin and RSET Pin Shorted
VDELAY = 1V
VDELAY = 0.5V
VDELAY = 0.25V
VDELAY = 0.25V
l
100
ns
150
ns
250
ns
500
ns
–0.1 –0.3
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: The LT3782AE is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 125°C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls. The LT3782AI is guaranteed
to meet performance specifications over the full –40°C to 125°C operating
junction temperature range.
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 PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted.
VGBIAS vs IGBIAS
11.0
10.9
10.8
10.7
10.6
10.5
10.4
10.3
10.2
10.1
10.0
0
50
IGBIAS (mA)
100
3782A G01
ICC vs VCC
20
18
16
14
12
10
8
6
4
2
0
6 8 10 12 14 16 18 20 22 24 26 28 30
VCC (V)
3782A G02
ΔVREF vs VCC, ΔFrequency vs VCC
(RSET = 80k)
3
12
2
10
1
8
ΔVREF
0
6
–1
4
–2
2
ΔFREQUENCY
–3
0
–4
–2
–5
6
–4
9 12 15 18 21 24 27 30
VCC (V)
3782A G03
3782af
4
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