LTC6995-1 Datasheet, PDF (6/28 Pages) Linear Technology – TimerBlox: Long Timer, Low Frequency Oscillator

LTC6995-1/LTC6995-2
Typical Performance Characteristics
V⁺ = 3.3V, R_SET = 200k, T_A = 25°C unless otherwise noted.
Supply Current vs Supply Voltage
150
125
R_SET = 50k
100
R_SET = 100k
R_SET = 200k
75
50
R_SET = 800k
25
0
2
3
4
5
6
SUPPLY VOLTAGE (V)
699512 G10
Supply Current vs R_SET
150
125
V⁺ = 5V
100
75
50
V⁺ = 3.3V
V⁺ = 2.5V
25
0
0
200
400
600
800
R_SET (kΩ)
699512 G13
Reset Propagation Delay (t_RST)
vs Supply Voltage
50
45 ^{CLOAD = 5pF}
40
35
30
25
20
15
10
5
0
2
3
4
5
6
SUPPLY VOLTAGE (V)
699512 G16
6
Supply Current vs Temperature
150
125
5V, R_SET = 100k
100
2.5V, R_SET = 100k
75
5V, R_SET = 800k
50
2.5V, R_SET = 800k
25
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
699512 G11
Typical I_SET Current Limit vs V⁺
1000
SET PIN SHORTED TO GND
800
600
400
200
0
2
3
4
5
6
SUPPLY VOLTAGE (V)
699512 G14
Rise and Fall Time
vs Supply Voltage
3.0
C_LOAD = 5pF
2.5
2.0
t_RISE
1.5
t_FALL
1.0
0.5
0
2
3
4
5
6
SUPPLY VOLTAGE (V)
699512 G17
For more information www.linear.com/6995
Supply Current
vs RST Pin Voltage
250
R_SET = 800k
200
5V
RST FALLING
5V
RST RISING
150
3.3V
RST FALLING
100
3.3V
RST RISING
50
0
0
0.2
0.4
0.6
0.8
1.0
V_RST/V⁺ (V/V)
699512 G12
RST Threshold Voltage
vs Supply Voltage
3.5
3.0
POSITIVE-GOING
2.5
2.0
NEGATIVE-GOING
1.5
1.0
0.5
0
2
3
4
5
6
SUPPLY VOLTAGE (V)
699512 G15
Typical Frequency Error
vs Time (Long-Term Drift)
200
65 UNITS
150 ^{SOT-23 AND DFN PARTS}
T_A = 30°C
100
50
0
–50
–100
–150
–200
0
400 800 1200 1600 2000 2400 2800
TIME (h)
699512 G18
699512f