LTC3810EG LINER [Linear Technology], LTC3810EG Datasheet - Page 6

• Manufacturer Part Number: LTC3810EG
• Description: 100V Current Mode Synchronous Switching Regulator Controller
• Manufacturer: LINER [Linear Technology]

LTC3810
TYPICAL PERFORMANCE CHARACTERISTICS
6
350
200
300
250
200
150
100
400
300
100
700
600
500
400
300
200
100
50
0
0
0
0.5
0
0
Frequency vs Load Current
On-Time vs V
Maximum Current Sense
Threshold vs V
CONTINUOUS
I
ON
FORCED
= 300μA
0.5
1
PULSE SKIP
LOAD CURRENT (A)
V
1
1
V
RNG
ON
2
ON
VOLTAGE (V)
RNG
VOLTAGE (V)
Voltage
1.5
FRONT PAGE CIRCUIT
Voltage
3
1.5
2
4
2.5
3810 G10
3810 G16
3810 G13
2
5
3
–100
–200
–300
–400
680
660
600
560
400
300
200
100
640
620
580
230
220
210
200
190
180
0
–50
–50 –25
Current Sense Threshold
vs I
On-Time vs Temperature
Maximum Current Sense
Threshold vs Temperature
0
I
V
ON
RNG
–25
TH
= 300μA
0.5
= INTV
Voltage
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
CC
1
I
TH
25
VOLTAGE (V)
25
1.5
50
50
2
75
75
V
RNG
2.5
100
1.4V
100
1V
0.7V
0.5V
3810 G14
= 2V
3810 G11
3810 G17
125
125
3
10000
0.800
0.797
0.803
0.802
0.801
0.799
0.798
1000
100
250
200
150
100
10
50
0
–50 –25
10
0
On-Time vs I
Current Limit Foldback
Feedback Reference Voltage
vs Temperature
V
RNG
= INTV
0.2
0
TEMPERATURE (°C)
100
CC
I
ON
ON
CURRENT (μA)
25
V
Current
FB
0.4
(V)
50
1000
V
75
ON
0.6
= INTV
100
38125 G15
3810 G18
3810 G12
3810fb
CC
10000
125
0.8