Datasheet

LTC3862-1
8
38621f
TYPICAL PERFORMANCE CHARACTERISTICS
Oscillator Frequency
vs Input Voltage
R
FREQ
vs Frequency
Frequency vs PLLFLTR Voltage
Frequency Pin Voltage
vs Temperature
Minimum On-Time
vs Input Voltage
Minimum On-Time
vs Temperature
Gate Turn-On Waveform Driving
Renesas HAT2267H
Gate Turn-Off Waveform Driving
Renesas HAT2267H
FREQUENCY (kHz)
100
R
FREQ
(k)
300
1000
38621 G28
10
100
200 1000
900
800700600
500
400
0
PLLFLTR VOLTAGE (V)
0
1000
1200
1400
2
38621 G29
800
600
0.5 1 1.5 2.5
400
200
0
FREQUENCY (kHz)
TEMPERATURE (°C)
–50
FREQ VOLTAGE (V)
1.223
1.229
1.231
150
38621 G30
1.221
1.219
1.211
0
50
100
–25
25
75
125
1.215
1.235
1.233
1.227
1.225
1.217
1.213
TEMPERATURE (°C)
–50
130
MINIMUM ON-TIME (ns)
180
230
280
330
050
100
150
38621 G31
380
430
–25 25
75
125
BLANK = 3V8
BLANK = FLOAT
BLANK = SGND
INPUT VOLTAGE (V)
8
130
MINIMUM ON-TIME (ns)
180
230
280
330
12 20
28
36
38621 G32
380
430
16
24
32
BLANK = 3V8
BLANK = FLOAT
BLANK = SGND
38621 G33
20ns/DIV
V
GATE
2V/DIV
V
IN
= 24V
V
OUT
= 72V
I
LOAD
= 0.25A
38621 G34
20ns/DIV
V
GATE
2V/DIV
V
IN
= 24V
V
OUT
= 72V
I
LOAD
= 0.25A
INPUT VOLTAGE (V)
8
FREQUENCY (kHz)
300
305
310
315
36
38621 G27
295
290
280
12
20
2816
24
32
285
320