Datasheet

LT3796/LT3796-1
5
3796fa
For more information www.linear.com/3796
PARAMETER CONDITIONS MIN TYP MAX UNITS
Gate Driver
t
r
NMOS GATE Driver Output Rise Time C
L
= 3300pF, 10% to 90% 20 ns
t
f
NMOS GATE Driver Output Fall Time C
L
= 3300pF, 10% to 90% 18 ns
NMOS GATE Output Low (V
OL
) 0.05 V
NMOS GATE Output High (V
OH
) INTV
CC
–
0.05
V
t
r
Top GATE Driver Output Rise Time C
L
= 300pF 50 ns
t
f
Top GATE Driver Output Fall Time C
L
= 300pF 100 ns
Top Gate On Voltage (V
ISP
-V
TG
) ISP = 48V 7 8 V
Top Gate Off Voltage (V
ISP
-V
TG
) PWM = 0V, ISP = 48V 0 0.3 V
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C, V
IN
= 24V, EN/UVLO = 24V, CTRL = 2V, PWM = 5V, unless otherwise noted.
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: Do not apply a positive or negative voltage source to TG and GATE
pins, otherwise permanent damage may occur.
Note 3: Operating maximum for INTV
CC
is 8V.
Note 4: The LT3796E and LT3796E-1 are 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 and LT3796I-1
are guaranteed to meet performance specifications over the –40°C to
125°C operating temperature range. The LT3796H and LT3796H-1 are
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.