ADM705AN datasheet(3/12 Pages) AD

Numer części	ADM705AN

Szczegółowy opis	Supervisory Circuits

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ADM705/ADM706/ADM707/ADM708

Rev. G | Page 3 of 12

SPECIFICATIONS

VCC = 4.75 V to 5.5 V, TA = TMIN to TMAX, unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

POWER SUPPLY

VCC Operating Voltage Range

1.0

5.5

V

Supply Current

190

250

μA

LOGIC OUTPUT

Reset Threshold

4.5

4.65

4.75

V

ADM705/ADM707

4.25

4.40

4.50

V

ADM706/ADM708

Reset Threshold Hysteresis

40

mV

RESET PULSE WIDTH

160

200

280

ms

RESET OUTPUT VOLTAGE

VCC − 1.5

V

ISOURCE = 800 μA

0.4

V

ISINK = 3.2 mA

0.3

V

VCC = 1 V, ISINK = 50 μA

0.3

V

VCC = 1.2 V, ISINK = 100 μA

RESET OUTPUT VOLTAGE

VCC − 1.5

V

ADM707/ADM708, ISOURCE = 800 μA

0.4

V

ADM707/ADM708, ISINK = 1.2 mA

WATCHDOG TIMEOUT PERIOD (tWD)

1.00

1.60

2.25

sec

VIL = 0.4 V, VIH = VCC × 0.8, WDI = VCC

WDI Pulse Width (tWP)

50

ns

WATCHDOG INPUT

WDI Input Threshold

Logic Low

0.8

V

Logic High

3.5

V

WDI Input Current

50

150

μA

WDI = 0 V

−150

−50

μA

WDI = 0 V

WDO OUTPUT VOLTAGE

VCC − 1.5

V

ISOURCE = 800 μA

0.4

V

ISINK = 1.2 mA

MANUAL RESET INPUT

MR Pull-Up Current

100

250

600

μA

MR = 0 V

MR Pulse Width

150

ns

MR INPUT THRESHOLD

Logic Low

0.8

V

Logic High

2.0

V

MR TO RESET OUTPUT DELAY

250

ns

POWER-FAIL INPUT

PFI Input Threshold

1.2

1.25

1.3

V

PFI Input Current

−25

+0.01

+25

nA

PFO OUTPUT VOLTAGE

VCC − 1.5

V

ISOURCE = 800 μA

0.4

V

ISINK = 3.2 mA

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