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LTC6907 датащи(PDF) 11 Page - Analog Devices

номер детали LTC6907
подробное описание детали  Voltage-Controlled Pulse Width Modulator (PWM)
PDF  34 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

LTC6907 датащи(HTML) 11 Page - Analog Devices

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LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
11
Rev. D
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Linearity Near 31% Duty Cycle
NDIV = 1 Duty Cycle Drift vs Supply
NDIV > 1 Duty Cycle Drift
vs Supply
Supply Current vs VMOD
VMOD/VSET (V/V)
26
31
35
34
33
32
36
0.324
0.34
0.356
0.372
0.308
0.388
30
29
28
27
6992 G40
DIVCODE = 4
3 PARTS
SUPPLY (V)
–0.5
0
0.4
0.3
0.2
0.1
0.5
3
4
5
2
6
–0.1
–0.2
–0.3
–0.4
6992 G41
DIVCODE = 0
VMOD/VSET = 0.5
VMOD/VSET = 0.2
VMOD/VSET = 0.8
5% CLAMP
95% CLAMP
REFERENCED TO V+ = 4V
SUPPLY (V)
–0.5
0
0.4
0.3
0.2
0.1
0.5
3
4
5
2
6
–0.1
–0.2
–0.3
–0.4
6992 G42
DIVCODE = 4
REFERENCED TO V+ = 4V
VMOD/VSET = 0.5
VMOD/VSET = 0.2
VMOD/VSET = 0.8
5% CLAMP
95% CLAMP
V+ = 3.3V, RSET = 200k, and TA = 25°C, unless
otherwise noted.
VMOD (V)
0
250
350
300
400
0.4
0.2
0.6
0.8
0
1
200
150
100
50
6992 G43
LTC6992-2
RSET = 50k, ÷1
RSET = 50k, ÷16
RSET = 100k, ÷4
RSET = 800k, ÷1
Supply Current vs Frequency, 5V
Supply Current vs Frequency, 2.5V
Supply Current vs Supply Voltage
Supply Current vs Temperature
Jitter vs Frequency
SUPPLY VOLTAGE (V)
0
250
350
300
400
3
4
5
2
6
200
150
100
50
6992 G44
RSET = 50k, ÷1
RSET = 50k, ÷4
RSET = 50k, ÷16
RSET = 100k, ÷1
RSET = 800k, ÷1
TEMPERATURE (°C)
–50
0
250
300
350
400
0
25
50
100 125
200
150
100
50
–25
75
6992 G45
5.0V, RSET = 50k, ÷1
2.5V, RSET = 50k, ÷1
5.0V, RSET = 50k, ÷16
5.0V, RSET = 800k, ÷1
2.5V, RSET = 800k, ÷1
FREQUENCY (kHz)
0.01
0
1.4
1.6
1.8
2.0
0.1
1
100
1000
1.2
1.0
0.8
0.6
0.4
0.2
10
6992 G46
÷1, V+ = 5V
÷1, V+ = 2.5V
÷4, V+ = 5V
÷4, V+ = 2.5V
÷16
÷64
PEAK-TO-PEAK PERIOD
DEVIATION MEASURED
OVER 30s INTERVALS
VMOD/VSET = 0.5
FREQUENCY (kHz)
0.001
0
250
300
350
400
0.1
0.01
1
100
1000
200
150
100
50
10
6992 G47
÷4
÷1
÷16,384
V+ = 5V
FREQUENCY (kHz)
0.001
0
250
300
350
400
0.1
0.01
1
100
1000
200
150
100
50
10
6992 G48
÷4
÷1
÷16,384
V+ = 2.5V



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