LTC3783 LINER [Linear Technology], LTC3783 Datasheet - Page 4

• Manufacturer Part Number: LTC3783
• Description: Full-Featured LED Driver with 1.5A Switch Current
• Manufacturer: LINER [Linear Technology]

LT3517
ELECTRICAL CHARACTERISTICS
PARAMETER
TGEN Input High Voltage
TGEN Input Low Voltage
TGEN Pin Bias Current
V
V
Gate Turn-On Delay
Gate Turn-Off Delay
Top Gate Drive 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: The LT3517E is guaranteed to meet performance specifications
from 0°C to 125°C operating junction temperature range. Specifications
over the –40°C to 125°C operating junction temperature range are
assured by design, characterization and correlation with statistical
process controls. The LT3517I is guaranteed over the full –40°C to 125°C
operating junction temperature range. The LT3517H is guaranteed over
the full –40°C to 150°C operating junction temperature range. Operating
lifetime is derated at junction temperatures greater than 125°C.
TYPICAL PERFORMANCE CHARACTERISTICS
4
temperature range, otherwise specifications are at T
REF
REF
120
100
Pin Voltage
Pin Voltage Line Regulation
80
60
20
40
0
V
0
ISP
V
V
VC = 1V
T
A
IN
ISP
= 25°C
0.2
= 5V
– V
= 24V
GS
ISN
0.4
(V
Threshold vs V
ISP
0.6
V
– V
CTRL
0.8
TG
(V)
)
1.0
1.2
CTRL
1.4
3518 G01
1.6
CONDITIONS
TGEN = 5V
I
3V < V
C
C
V
PWM = 0V
REF
LOAD
LOAD
ISP
2.0
1.5
1.0
0.5
0
= –100μA
= 24V, TGEN = 5V
A
0
IN
Switch Current Limit
vs Duty Cycle
= 1nF Between ISP and TG
= 1nF Between ISP and TG
T
= 25°C. (Note 2) V
A
< 40V
= 25°C
20
The
●
DUTY CYCLE (%)
denotes the specifications which apply over the full operating
40
Note 3: Absolute maximum voltage at V
is 40V for nonrepetitive 1 second transients and 30V for continuous
operation.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed the maximum operating junction temperature
when overtemperature protection is active. Continuous operation above
the specified maximum operating junction temperature may impair device
reliability.
60
IN
= 5V, SHDN = 5V, PWM = 5V unless otherwise noted.
80
3517 G02
100
10000
1000
●
100
Oscillator Frequency vs R
1
T
A
MIN
1.96
1.5
= 25°C
IN
, SHDN, PWM and TGEN pins
TYP
100
200
200
2
7
0
R
T
10
(kΩ)
MAX
2.04
0.03
200
0.4
0.3
T
UNITS
3518 G03
3517ff
%/V
100
μA
ns
ns
V
V
V
V
V