Datasheet

LTC3862
8
3862fc
For more information www.linear.com/LTC3862
Typical perForMance characTerisTics
Oscillator Frequency vs
Input Voltage
R
FREQ
vs Frequency
Frequency vs PLLFLTR Voltage
Frequency Voltage vs
Temperature
Minimum On-Time vs
Input Voltage
Minimum On-Time vs
Temperature
Gate Turn-On Waveform Driving
Renesas HAT2266
Gate Turn-Off Waveform Driving
Renesas HAT2266
INPUT VOLTAGE (V)
0
FREQUENCY (kHz)
300
305
310
32
3862 G27
295
290
280
8
16
24
4 36
12
20
28
285
320
315
FREQUENCY (kHz)
100
R
FREQ
(kΩ)
300
1000
3862 G28
10
100
200 1000
900
800700600
500
400
0
PLLFLTR VOLTAGE (V)
0
1000
1200
1400
2
3862 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
3862 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
100
MINIMUM ON-TIME (ns)
150
200
250
300
0 50
100
150
3862 G31
350
400
–25 25
75
125
BLANK = 3V8
BLANK = FLOAT
BLANK = SGND
INPUT VOLTAGE (V)
4
100
MINIMUM ON-TIME (ns)
150
200
250
300
12 20
28
36
3862 G32
350
400
8 16
24
32
BLANK = 3V8
BLANK = FLOAT
BLANK = SGND
GATE
1V/DIV
20ns/DIVV
IN
= 12V
V
OUT = 48V
I
OUT = 1A
MOSFET RENESAS HAT2266
3862 G33
GATE
1V/DIV
20ns/DIVV
IN
= 12V
V
OUT = 48V
I
OUT = 1A
MOSFET RENESAS HAT2266
3862 G34