Datasheet
LTC6993-1/LTC6993-2
LTC6993-3/LTC6993-4
8
69931234fb
TYPICAL PERFORMANCE CHARACTERISTICS
Typical V
SET
Distribution Supply Current vs Supply Voltage Supply Current vs Temperature
Supply Current
vs TRIG Pin Voltage Supply Current vs t
OUT
(5V)
V
+
= 3.3V, R
SET
= 200k and T
A
= 25°C unless otherwise noted.
V
SET
(V)
0.98
0
100
50
150
200
250
0.996 1.004 1.012
1.02
0.988
69931234 G19
NUMBER OF UNITS
2 LOTS
DFN AND SOT-23
1274 UNITS
Typical I
SET
Current Limit vs V
+
TRIG Threshold Voltage
vs Supply Voltage
Peak-to-Peak Jitter vs t
OUT
Supply Current vs t
OUT
(2.5V)
t
OUT
(ms)
50
POWER SUPPLY CURRENT (µA)
100
150
200
250
0.001 0.1 1 100
69931234 G23
0
0.01
10
ACTIVE
IDLE
V
+
= 5V
C
LOAD
= 5pF
R
LOAD
= ∞
ACTIVE CURRENT MEASURED
WITH TRIGGER PERIOD = 2 • t
OUT
(50% DUTY CYCLE)
÷1
÷8
÷64
÷512
t
OUT
(ms)
50
POWER SUPPLY CURRENT (µA)
100
150
200
250
0.001 0.1 1 100
69931234 G24
0
0.01
10
ACTIVE
IDLE
V
+
= 2.5V
C
LOAD
= 5pF
R
LOAD
= ∞
ACTIVE CURRENT MEASURED
WITH TRIGGER PERIOD = 2 • t
OUT
(50% DUTY CYCLE)
÷1
÷8
÷64
÷512
t
OUT
(ms)
0.001
0.4
JITTER (%
P-P
)
0.5
0.6
0.7
0.8
0.01 0.1 1 10 100
69931234 G26
0.3
0.2
0.1
0
0.9
1.0
÷1, 5.5V
÷1, 2.25V
÷8, 2.25V
÷8, 5.5V
÷64
÷512
÷4096
PEAK-TO-PEAK t
OUT
VARIATION
MEASURED OVER
30s INTERVALS
SUPPLY VOLTAGE (V)
RST PIN VOLTAGE (V)
69931234 G25
3.5
1.0
2.0
3.0
0.5
1.5
2.5
0
2 43 5 6
POSITIVE GOING
NEGATIVE GOING
SUPPLY VOLTAGE (V)
I
SET
(µA)
69931234 G27
1000
400
800
200
600
0
2 43 5 6
SET PIN SHORTED TO GND
SUPPLY VOLTAGE (V)
2
0
POWER SUPPLY CURRENT (µA)
50
100
150
200
250
300
3 4 5 6
69931234 G20
“ACTIVE” = 50% TIMING DUTY CYCLE
R
SET
= 50k
÷1, ACTIVE
R
SET
= 50k
÷1, IDLE
R
SET
= 100k, ÷8, ACTIVE
R
SET
= 100k, ÷8, IDLE
R
SET
= 800k, ÷512
C
LOAD
= 5pF
R
LOAD
= ∞
TEMPERATURE (°C)
–50 –25
0
POWER SUPPLY CURRENT (µA)
50
100
150
200
250
0 25 50 75 100 125
69931234 G21
“ACTIVE” = 50% TIMING DUTY CYCLE
R
SET
= 100k, ÷8, ACTIVE
R
SET
= 50k, ÷1, ACTIVE
R
SET
= 100k, ÷8, IDLE
R
SET
= 50k, ÷1, IDLE
R
SET
= 800k, ÷512
C
LOAD
= 5pF
R
LOAD
= ∞
V
TRIG
/V
+
(V/V)
0
POWER SUPPLY CURRENT (µA)
150
200
250
0.8
69931234 G22
100
50
0
0.2
0.4
0.6
1.0
5V
TRIG FALLING
5V
TRIG RISING
3.3V
TRIG RISING
3.3V
TRIG FALLING
C
LOAD
= 5pF
R
LOAD
= ∞