Datasheet

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