LT3795
elecTrical characTerisTics
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 LT3795E is guaranteed to meet specified performance from
0°C to 125°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 LT3795I is guaranteed to meet
performance specifications over the –40°C to 125°C operating junction
temperature range. The LT3795H 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:
See Duty Cycle Considerations in the Applications Information
section.
Typical perForMance characTerisTics
300
250
200
150
100
50
0
T
A
= 25°C, unless otherwise noted.
V
(ISP-ISN)
Full-Scale Threshold
vs Temperature
254
253
V
(ISP-ISN)
THRESHOLD (mV)
252
251
250
249
248
247
ISP = 48V
CTRL1= CTRL2 = 2V
V
(ISP-ISN)
Threshold vs V
CTRL
253
252
251
250
249
248
247
V
(ISP-ISN)
Threshold vs V
ISP
V
(ISP-ISN)
THRESHOLD (mV)
V
(ISP-ISN)
THRESHOLD (mV)
0
0.2
0.4
0.6 0.8
V
CTRL
(V)
1.0
1.2
1.4
0
20
40
60
V
ISP
(V)
80
100
120
3795 G02
246
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
3795 G03
3795 G01
V
(ISP-ISN)
Threshold at CTRL1 = 0.6V,
CTRL2 = 1.2V vs Temperature
128
127
126
125
124
123
122
–50 –25
300
250
V
(ISP-ISN)
Threshold vs FB Voltage
1.27
V
FB
vs Temperature
V
(ISP-ISN)
THRESHOLD (mV)
1.26
200
150
100
1.24
50
0
1.1
1.23
–50 –25
V
FB
(V)
1.15
1.2
V
FB
(V)
1.25
1.3
3795 G04
V
(ISP-ISN)
(mV)
1.25
0
25
50
75
100 125 150
3795 G03a
0
25
50
75
100 125 150
3795 G05
TEMPERATURE (°C)
TEMPERATURE (°C)
For more information
5
3795f
LINEAR_DIMENSIONS [ LINEAR DIMENSIONS SEMICONDUCTOR ]
