LTC2902
TEST CIRCUITS
V1
V2
V3
V4
RST
LTC2902-1 OR COMPX
I
SOURCE
1µA
LTC2902-1
V1
V2
V3
V4
2902 F02
RST
OR COMPX
I
SINK
2.5mA,
100µA
V1
V2
V3
V4
LTC2902-2 RST
I
SOURCE
200µA
2902 F01
2902 F03
Figure 1. RST, COMPX V
OH
Test
Figure 2. RST, COMPX V
OL
Test
Figure 3. Active Pull-Up RST V
OH
Test
TI I G DIAGRA
TYPICAL PERFOR A CE CHARACTERISTICS
5V Threshold Voltage
vs Temperature
4.75
4.70
3.135
5%
3.100
THRESHOLD VOLTAGE, V
RT33
(V)
THRESHOLD VOLTAGE, V
RT50
(V)
4.65
4.60
4.55
4.50
4.45
4.40
4.35
4.30
4.25
– 60 –40 – 20 0 20 40 60
TEMPERATURE (°C)
80
100
12.5%
10%
7.5%
3.065
3.030
2.995
2.960
2.925
2.890
2.855
2.820
2.785
– 60 –40 – 20 0 20 40 60
TEMPERATURE (°C)
80
100
12.5%
10%
7.5%
THRESHOLD VOLTAGE, V
RT30
(V)
4
U W
W
V
X
Monitor Timing
V
RTX
t
UV
RST
t
RST
1.5V
V
X
2902 TD
UW
COMPX
3.3V Threshold Voltage
vs Temperature
2.850
5%
2.815
2.780
2.745
2.710
2.675
2.640
2.605
2.570
3V Threshold Voltage
vs Temperature
5%
7.5%
10%
12.5%
2.535
– 60 –40 – 20 0 20 40 60
TEMPERATURE (°C)
80
100
2902 G01
2902 G02
2902 G03
2902f
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
