AS1902 datasheet(3/9 Pages) AMSCO

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AS1901, AS1902, AS1903

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Data Sheet

5 Electrical Characteristics

VDD = Full Range; TA = -40 to +85ºC; Unless Otherwise Specified

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.

Table 2. Electrical Characteristics

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

VDD Range

VDD

TA = 0 to +70°C

1.0

3.6

TA = -40 to +85°C

1.2

3.6

Supply Current (AS1901/2/3)

IDD

VDD = 3.3V, No Load

230

430

Reset Threshold Voltage1

VTH

TA = +25°C

VTH -

1.5%

VTH

VTH +

1.5%

TA = -40 to +85°C

VTH -

2.5%

VTH

VTH +

2.5%

VDD to Reset Delay2

tRD

VDD = VTH to (VTH - 100mV)

µs

Reset Active Time-Out Period3

tTP

tTP -

40%

tTP

tTP +

60%

RESETN Output Voltage (AS1901/3)

VOL

ISINK = 1.2mA, VDD = 2.1V, Reset

Asserted

0.4

ISINK = 400µA, VDD = 1.2V, Reset

Asserted

0.4

RESETN Output Voltage (AS1901)

VOH

ISOURCE = 1.2mA, VDD = 3.2V

0.8 x

VDD

RESET Output Voltage (AS1902)

VOH

ISOURCE = 500µA, VDD = 2.1V,

Reset Asserted

0.8 x

VDD

ISOURCE = 100µA, VDD = 1.2V,

Reset Asserted

0.8 x

VDD

VOL

ISINK = 1.2mA, VDD = 3.2V,

Reset Not Asserted

0.4

RESET Threshold Hysteresis

VHYST

Open-Drain RESETN Output

Leakage Current (AS1903)

ILEAK

0.1

µA

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