AS1905C23(2005) Ver la hoja de datos (PDF) - austriamicrosystems AG

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AS1905C23
(Rev.:2005)

Ultra Low-Power µP Supervisory Circuit

austriamicrosystems AG 

AS1904, AS1905, AS1906

Data Sheet

austriamicrosystems

5 Electrical Characteristics

VDD = Full Range; TA = -40º to +85°C; 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

V

Supply Current

IDD

VDD = 3.3V, No Load

150 290

nA

RESET Threshold Voltage1

VTH

TA = +25°C

TA = -40 to +85°C

VTH -

1.5%

VTH

VTH +

1.5%

V

VTH -

2.5%

VTH

VTH +

2.5%

V

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

(AS1904/AS1906)

ISINK = 1.2mA, VDD = 2.1V,

reset asserted

VOL

ISINK = 400µA, VDD = 1.2V,

reset asserted

0.4

V

0.4

V

RESETN Output Voltage (AS1904)

VOH

ISOURCE = 1.2mA, VDD = 3.2V

0.8 x

VDD

V

ISOURCE = 500µA, VDD = 2.1V, 0.8 x

reset asserted

VDD

V

VOH

RESET Output Voltage (AS1905)

ISOURCE = 100µA, VDD = 1.2V, 0.8 x

reset asserted

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 (AS1906)

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 1.4

3-9

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