LTC2906 Datasheet, PDF (4/16 Pages) Linear Technology – Precision Dual Supply Monitors with One Pin-Selectable Threshold and One Adjustable Input

LTC2906/LTC2907
TYPICAL PERFOR A CE CHARACTERISTICS
Specifications are at T_A = 25°C unless otherwise noted.
ADJ Threshold Voltage vs
Temperature
0.505
5%
0.500
0.495
0.490
0.485
7.5%
0.480
0.475
10%
I_V1 vs Temperature
19.5
V1 = 5V
V_CC = 3.3V
19.0
V_ADJ =0.55V
S1 =TOL = 1.4V
18.5
18.0
17.5
0.470
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
29067 G04
Typical Transient Duration vs
Comparator Overdrive (V1, V_ADJ)
700
17.0
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
29067 G05
Reset Time Out Period (t_RST)
vs Capacitance (C_TMR)
10000
600
500
400
RESET OCCURS
ABOVE CURVE
300
200
100
1000
100
10
1
0
0.1
1
10
100
COMPARATOR OVERDRIVE VOLTAGE (% OF VRTX)
29067 G07
0.1
10p
100p 1n 10n
CTMR (FARAD)
100n 1µ
29067 G08
I_VCC vs Temperature
15.8
V1 = 2.5V
15.6 ^VCC ^{= 3.3V}
V_ADJ =0.55V
15.4 S1 =TOL = 1.4V
15.2
15.0
14.8
14.6
14.4
14.2
14.0
–50 –25 0 25 50
TEMPERATURE (°C)
75 100
29067 G06
Reset Time Out Period (t_RST)
vs Temperature
235
CRT = 22nF
230 ^(FILM)
225
220
215
210
205
200
195
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
29067 G09
RST Output Voltage vs V1
5
S1 = TOL = V_CC = V1
V_ADJ = 0.55V
4 _{10k PULL-UP RESISTOR}
3
2
1
0
–1
0
1
2
3
V1 (V)
4
5
29067 G10
4
RST Output Voltage vs V1
5
S1 = TOL = V_CC = V1
V_ADJ = 0.55V
4 _{10k PULL-UP RESISTOR}
3
2
1
0
–1
0
1
2
3
V1 (V)
4
5
29067 G11
RST Output Voltage vs V1
5
S1 = TOL = V_CC = V1
V_ADJ = 0.55V
4 _{10pF CAPACITOR AT RST}
3
2
1
0
–1
0
1
2
3
4
5
V1 (V)
29067 G12
29067f