Datasheet

LT3798
5
3798fa
TYPICAL PERFORMANCE CHARACTERISTICS
INTV
CC
vs Temperature INTV
CC
vs V
IN
V
IN
Shunt Voltage vs Temperature
Maximum Shunt Current
vs Temperature
T
A
= 25°C, unless otherwise noted.
Leakage Inductance Blanking Time
vs SENSE Current Limit Threshold
TEMPERATURE (°C)
–50
9.5
INTV
CC
(V)
9.75
10.25
10.5
0
50
75
10
–25
25
100
125
150
3798 G08
25mA LOAD
10mA LOAD
NO LOAD
V
IN
(V)
5 15
25
30
10
20
35
40
3798 G09
9
INTV
CC
(V)
9.2
9.4
9.6
9.8
10
10.2
TEMPERATURE (°C)
–50 0
50
75
–25
25
100 125
150
3798 G10
39
V
IN
SHUNT VOLTAGE (V)
39.5
40
40.5
41
41.5
42
I
SHUNT
= 1mA
TEMPERATURE (°C)
–50 0
50
75
–25
25
100 125
150
3798 G11
5
SHUNT CURRENT (mA)
6
7
8
9
10
SENSE CURRENT LIMIT THRESHOLD (mV)
0
60
80
20
40
100
120
3798 G12
0
0.2
LEAKAGE INDUCTANCE BLANKING TIME (µs)
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Output Voltage
vs Input Voltage
V
OUT
vs Temperature
Output Current
vs Input Voltage
V
IN
(VAC)
90
23.6
V
OUT
(V)
23.8
24.6
24.2
170
210
230
24.4
24
150130110
190
250
270
3798 G13
PAGE 17 SCHEMATIC:
UNIVERSAL
V
IN
(VAC)
90
0.90
OUTPUT CURRENT (A)
0.95
1.00
1.05
1.10
210
230
130
110
170150 190
250
270
3798 G14
PAGE 17 SCHEMATIC:
UNIVERSAL
V
OUT
= 22V
TEMPERATURE (°C)
–50
23
V
OUT
(V)
24
24.5
25
0
50
75
23.5
–25
25
125100
150
3798 G012a
PAGE 17 SCHEMATIC:
UNIVERSAL
VAC = 120V
VAC = 220V