AS1902(2005) 查看數據表（PDF） - austriamicrosystems AG
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AS1902 Datasheet PDF : 9 Pages
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AS1901, AS1902, AS1903
Data Sheet
austriamicrosystems
5 Electrical Characteristics
VDD = Full Range; TA = -40 to +85ºC; Unless Otherwise Specified
Table 2. Electrical Characteristics
Parameter
Symbol
Conditions
Min Typ Max Unit
VDD Range
TA = 0 to +70°C
1.0
VDD
TA = -40 to +85°C
1.2
3.6
V
3.6
Supply Current (AS1901/2/3)
IDD
VDD = 3.3V, No Load
230 430 nA
Reset Threshold Voltage1
VTH
TA = +25°C
TA = -40 to +85°C
VTH - VTH VTH +
1.5%
1.5%
V
VTH -
2.5%
VTH
VTH +
2.5%
VDD to Reset Delay2
tRD
VDD = VTH to (VTH - 100mV)
20
50 µs
Reset Active Time-Out Period3
tTP
tTP -
40%
tTP
tTP +
60%
ms
RESETN Output Voltage (AS1901/3) VOL
ISINK = 1.2mA, VDD = 2.1V, Reset
Asserted
ISINK = 400µA, VDD = 1.2V, Reset
Asserted
0.4 V
0.4 V
RESETN Output Voltage (AS1901) VOH
ISOURCE = 1.2mA, VDD = 3.2V
0.8 x
VDD
V
ISOURCE = 500µA, VDD = 2.1V,
Reset Asserted
0.8 x
VDD
V
VOH
RESET Output Voltage (AS1902)
ISOURCE = 100µA, VDD = 1.2V,
Reset Asserted
0.8 x
VDD
V
VOL
ISINK = 1.2mA, VDD = 3.2V,
Reset Not Asserted
0.4 V
RESET Threshold Hysteresis
VHYST
10
mV
Open-Drain RESETN Output
Leakage Current (AS1903)
ILEAK
0.1 µA
Notes:
1 See Table 5, “Coding of Factory-Trimmed Reset Threshold Voltages,” on page 5.
2 Guaranteed by design.
3 See Table 3, “Coding of Factory-trimmed Reset Active Time-Out Period,” on page 5.
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Revision 1.5
3-9
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