AS1902C23 Ver la hoja de datos (PDF) - austriamicrosystems AG

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AS1902C23

Ultra Low-Power µP Supervisory Circuit

austriamicrosystems AG 

AS1901, AS1902, AS1903

Data Sheet - Electrical Characteristics

6 Electrical Characteristics

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

Table 3. Electrical Characteristics

Parameter

Symbol

Conditions

Min Typ Max Unit

TA = 0 to +70°C

1.0

3.6

VDD Range

VDD

TA = -40 to +85°C

1.2

V

3.6

Supply Current (AS1901/2/3)

IDD

VDD = 3.3V, No Load

230 430 nA

lid 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%

a VDD to Reset Delay2

tRD

VDD = VTH to (VTH - 100mV)

20

50 µs

v Reset Active Time-Out Period3

tTP

tTP -

40%

tTP

tTP +

60%

ms

ill 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

G t RESETN Output Voltage (AS1901) VOH

ISOURCE = 1.2mA, VDD = 3.2V

0.8 x

VDD

V

s ISOURCE = 500µA, VDD = 2.1V,

Reset Asserted

0.8 x

VDD

V

A t VOH

RESET Output Voltage (AS1902)

ISOURCE = 100µA, VDD = 1.2V,

Reset Asserted

0.8 x

VDD

V

s n VOL

ISINK = 1.2mA, VDD = 3.2V,

Reset Not Asserted

0.4 V

e RESET Threshold Hysteresis

VHYST

10

mV

m t Open-Drain RESETN Output

Leakage Current (AS1903)

ILEAK

0.1 µA

a n Notes:

o 1 See Table 6, “Coding of Factory-Trimmed Reset Threshold Voltages,” on page 6.

c 2 Guaranteed by design.

Technical 3 See Table 4, “Coding of Factory-trimmed Reset Active Time-Out Period,” on page 6.

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Revision 1.51

4-9

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