ltc6992-2-ltc6992-3 Linear Technology Corporation, ltc6992-2-ltc6992-3 Datasheet - Page 10

• Manufacturer Part Number: ltc6992-2-ltc6992-3
• Description: Timerblox Voltage-controlled Pulse Width Modulator Pwm
• Manufacturer: Linear Technology Corporation

LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
TYPICAL PERFORMANCE CHARACTERISTICS
otherwise noted.
10
400
350
300
250
200
150
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
50
36
35
34
33
32
31
30
29
28
27
26
0.308
0
0
0.01
0
Supply Current vs V
Jitter vs Frequency
Linearity Near 31% Duty Cycle
LTC6992-2
PEAK-TO-PEAK PERIOD
DEVIATION MEASURED
OVER 30s INTERVALS
V
DIVCODE = 4
3 PARTS
MOD
/V
0.324
0.2
0.1
SET
÷64
= 0.5
FREQUENCY (kHz)
V
R
R
R
0.34
MOD
R
0.4
÷16
SET
SET
SET
÷4, V
SET
1
V
MOD
÷4, V
/V
= 50k, ÷16
= 100k, ÷4
= 800k, ÷1
÷1, V
= 50k, ÷1
+
SET
= 2.5V
(V)
0.356
+
0.6
MOD
(V/V)
+
10
= 5V
= 2.5V
÷1, V
0.372
0.8
100
+
= 5V
6992 G43
6992 G46
6992 G40
0.388
1000
1
–0.1
–0.2
–0.3
–0.4
–0.5
400
350
300
250
200
150
100
400
350
300
250
200
150
100
0.5
0.4
0.3
0.2
0.1
50
50
0
0
0
0.001
2
2
N
Supply Current vs Supply Voltage
Supply Current vs Frequency, 5V
DIVCODE = 0
V
DIV
+
R
= 5V
5% CLAMP
÷16,384
SET
0.01
= 1 Duty Cycle Drift vs Supply
= 50k, ÷4
V
MOD
3
3
V
SUPPLY VOLTAGE (V)
MOD
V
FREQUENCY (kHz)
0.1
/V
MOD
SET
/V
SUPPLY (V)
95% CLAMP
SET
/V
REFERENCED TO V
= 0.5
SET
4
4
R
1
= 0.2
SET
= 0.8
R
R
R
SET
SET
SET
= 50k, ÷1
10
= 50k, ÷16
= 100k, ÷1
= 800k, ÷1
5
5
100
÷4
+
6992 G41
6992 G44
6992 G47
= 4V
÷1
V
+
1000
6
6
= 3.3V, R
–0.1
–0.2
–0.3
–0.4
–0.5
400
350
300
250
200
150
100
400
350
300
250
200
150
100
0.5
0.4
0.3
0.2
0.1
SET
50
50
0
0
0
0.001
–50
2
N
vs Supply
Supply Current vs Temperature
Supply Current vs Frequency, 2.5V
V
DIVCODE = 4
= 200k, and T
+
DIV
5% CLAMP
V
= 2.5V
2.5V, R
MOD
–25
÷16,384
0.01
> 1 Duty Cycle Drift
5.0V, R
/V
SET
3
SET
V
5.0V, R
2.5V, R
0
TEMPERATURE (°C)
MOD
SET
0.1
FREQUENCY (kHz)
V
= 0.8
= 50k, ÷1
MOD
SUPPLY (V)
/V
= 50k, ÷1
25
SET
A
SET
SET
REFERENCED TO V
/V
95% CLAMP
5.0V, R
= 25°C, unless
SET
4
1
= 0.2
= 800k, ÷1
= 800k, ÷1
50
= 0.5
SET
10
75
= 50k, ÷16
5
100
69921234fb
100
+
6992 G42
÷4
= 4V
6992 G45
6992 G48
÷1
1000
125
6