LTC6992-4 Linear Technology, LTC6992-4 Datasheet - Page 11

• Manufacturer Part Number: LTC6992-4
• Description: TimerBlox Voltage-Controlled Pulse Width Modulator (PWM)
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
otherwise noted.
400
350
300
250
200
150
100
50
50
45
40
35
30
25
20
15
10
0
5
0
2
2
Supply Current vs Supply Voltage
Output Resistance
vs Supply Voltage
LTC6992-2
OUTPUT SINKING CURRENT
R
SET
= 50k, ÷4
3
3
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
OUTPUT SOURCING CURRENT
400
350
300
250
200
150
100
50
0
0.001
Supply Current vs Frequency, 5V
V
4
+
4
R
SET
= 5V
÷16,384
R
R
R
0.01
SET
SET
SET
= 50k, ÷1
= 50k, ÷16
= 100k, ÷1
= 800k, ÷1
5
5
0.1
FREQUENCY (kHz)
6992 G44
6992 G50
1
6
6
10
400
350
300
250
200
150
100
100
3.0
2.5
2.0
1.5
1.0
0.5
50
÷4
0
0
–50
6992 G47
÷1
2
Rise and Fall Time
vs Supply Voltage
Supply Current vs Temperature
1000
2.5V, R
–25
5.0V, R
3
SET
5.0V, R
2.5V, R
SUPPLY VOLTAGE (V)
0
TEMPERATURE (°C)
t
SET
FALL
= 50k, ÷1
t
RISE
= 50k, ÷1
25
SET
SET
5.0V, R
4
= 800k, ÷1
= 800k, ÷1
50
SET
400
350
300
250
200
150
100
50
0
0.001
75
= 50k, ÷16
C
5
Supply Current vs Frequency, 2.5V
V
LOAD
+
= 2.5V
100
LTC6992-1/LTC6992-2/
÷16,384
0.01
= 5pF
6992 G45
6992 G51
LTC6992-3/LTC6992-4
V
+
125
6
= 3.3V, R
0.1
FREQUENCY (kHz)
1000
1
800
600
400
200
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
SET
0
0
0.01
2
Typical I
Jitter vs Frequency
PEAK-TO-PEAK PERIOD
DEVIATION MEASURED
OVER 30s INTERVALS
V
= 200k, and T
SET PIN SHORTED TO GND
10
MOD
/V
0.1
SET
100
÷64
SET
3
÷4
6992 G48
= 0.5
SUPPLY VOLTAGE (V)
FREQUENCY (kHz)
÷1
1000
Current Limit vs V
÷16
÷4, V
1
www.DataSheet4U.com
A
÷4, V
÷1, V
= 25°C, unless
+
4
= 2.5V
+
+
10
= 5V
= 2.5V
÷1, V
5
100
11
+
69921234p
= 5V
6992 G46
+
6992 G52
1000
6