NE56625-20 查看數據表（PDF） - Philips Electronics
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NE56625-20 Datasheet PDF : 15 Pages
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Philips Semiconductors
System reset with Watchdog timer
Product data
NE56625-20
1.2
IBC = 5 mA
VBC = 0.5 V
1.0 VCC = 2.0 V
0.8
Tamb = +100 °C
Tamb = +75 °C
0.6
0.4
Tamb = +25 °C
0.2
Tamb = –25 °C
0.0
0
2
4
6
8 10 12 14 16 18 20
BATTERY CHECK OUTPUT SINK CURRENT, IOLB (mA)
SL01824
Figure 9. Battery check LOW-level output voltage versus
battery check output sink current
2.40
2.35
2.30
2.25
VSHB
VSLB
2.20
2.15
2.10
VSHR
VSLR
2.05
–25
0
25
50
75
100
AMBIENT TEMPERATURE, Tamb (°C)
SL01826
Figure 11. RESET and battery detection voltages versus
temperature.
100
VCC = 2.4 V
CT = 0.022 µF
VCC rising from 0 V to 2.4 V
80
60
40
20
–25
0
25
50
75
100
AMBIENT TEMPERATURE, Tamb (°C)
SL01828
Figure 13. Power-on reset delay time versus temperature.
1.0
0.9 IRESET = 500 µA
VRESET = 0.5 V
0.8 VCC = 2.0 V
0.7 VS = 0 V
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.0
Tamb = +75 °C
Tamb = +100 °C
Tamb = +25 °C
Tamb = –25 °C
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
RESET OUTPUT SINK CURRENT, IOLR (mA)
SL01825
Figure 10. LOW-level RESET output voltage versus
RESET output sink current.
200
180
∆VSL
160
140
120
100
80
VHYSR
VHYSB
60
40
20
–25
0
25
50
75
100
AMBIENT TEMPERATURE, Tamb (°C)
SL01827
Figure 12. RESET and battery hysteresis voltages versus
temperature.
95
VCC = 2.4 V
90
CT = 0.022 µF
RCT = OPEN
85
80
75
70
65
60
–25
0
25
50
75
100
AMBIENT TEMPERATURE, Tamb (°C)
SL01829
Figure 14. Watchdog monitoring time versus temperature.
2003 Oct 15
7
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