LT3796 Просмотр технического описания (PDF) - Linear Technology
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LT3796
Linear Technology
LT3796 Datasheet PDF : 32 Pages
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LT3796
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C, VIN = 24V, EN/UVLO = 24V, CTRL = 2V, PWM = 5V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
Gate Driver
tr NMOS GATE Driver Output Rise Time
CL = 3300pF, 10% to 90%
20
ns
tf NMOS GATE Driver Output Fall Time
CL = 3300pF, 10% to 90%
18
ns
NMOS GATE Output Low (VOL)
NMOS GATE Output High (VOH)
INTVCC –
0.05
0.05
V
V
tr Top GATE Driver Output Rise Time
tf Top GATE Driver Output Fall Time
Top Gate On Voltage (VISP-VTG)
CL = 300pF
CL = 300pF
ISP = 48V
50
ns
100
ns
7
8
V
Top Gate Off Voltage (VISP-VTG)
PWM = 0V, ISP = 48V
0
0.3
V
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: Operating maximum for INTVCC is 8V.
Note 3: Do not apply a positive or negative voltage source to TG and GATE
pins, otherwise permanent damage may occur.
Note 4: The LT3796E is guaranteed to meet specified performance
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. The LT3796I is guaranteed
to meet performance specifications over the –40°C to 125°C operating
temperature range. The LT3796H is guaranteed over the full –40°C to
150° C operating junction temperature range. High junction temperatures
degrade operating lifetimes. Operating lifetime is derated at junction
temperatures greater than 125°C.
Note 5: Measured in servo. See Figure 9 for details.
Note 6: See Duty Cycle Considerations in the Applications Information
section.
3796f
5
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