Datasheet

LT3782
5
3782fg
JUNCTION TEMPERATURE (°C)
0
REFERENCE VOLTAGE (V)
2.446
2.444
2.442
2.440
2.438
2.436
2.434
50
100 12575
3782 G05
25 150
V
CC
(V)
6
I
CC
(mA)
20
18
16
12
14
10
8
6
4
2
0
22
3782 G02
108 121620 26
14
18
30
24
28
V
CC
(V)
6
ΔV
REF
(mV)
30
3782 G03
12
18
24
27
9
15
21
3
2
1
0
–1
–2
–3
–4
–5
ΔFREQUENCY (kHz)
12
10
8
6
4
2
0
–2
–4
ΔFrequency
ΔV
REF
R
FREQ
(kΩ)
0
FREQUENCY (kHz)
600
500
400
300
200
100
160
3782 G04
4020 60 100 140
80
120
200
180
TIME (s)
0
V
GBIAS
(V)
14
10
6
2
12
8
4
0
–2
I
GBIAS
(mA)
800
600
400
200
700
500
300
100
0
750μ
3782 G06
250μ 500μ
1m
V
GBIAS
I
GBIAS
V
DELAY
(V)
0
DELAY (ns)
1000
900
800
600
700
500
400
300
200
100
0
2.0
3782 G07
0.5
1.0
1.5
2.5
V
DCL
(V)
0
MAXIMUM DUTY CYCLE (%)
2.4
3782 G09
0.6
1.2
1.8
2.1
0.3
0.9
1.5
120
110
100
90
80
70
60
50
40
I
GBIAS
(mA)
0
V
GBIAS
(V)
10.5
100
3782 G01
10.0
10.6
10.1
10.7
10.2
10.8
10.3
10.9
10.4
50
11.0
V
GBIAS
vs I
GBIAS
I
CC
vs V
CC
ΔV
REF
vs V
CC
, ΔFrequency vs V
CC
(R
SET
= 80k)
Switching Frequency vs R
FREQ
Reference Voltage
vs Temperature
V
GBIAS
vs I
GBIAS
at Start-Up
(Charging 2μF)
SGATE (Low) to BGATE (High)
Delay vs V
DELAY
(R
SET
= 80k)
Switching Frequency
vs Duty Cycle
Maximum Duty Cycle Limit vs
V
DCL
(R
SET
= 80k)
T
A
= 25°C unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS