AAT3520/2/4

MicroPower Microprocessor Reset Circuit

3520.2002.2.0.9

3

Note: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at con-

ditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time.

Thermal Information

Note 1: Mounted on an FR4 board.

are at T

version and V

Symbol

Description

Conditions

Min

Typ

Max

Units

V

CC

Operation Voltage

T

1.0

5.5

V

T

1.2

5.5

I

Q

Quiescent Current

V

1.05

3

µA

V

0.85

2

V

TH

RESET Threshold (Table 1)

T

V

V

TH

V

V

T

V

V

TH

V

∆V

RESET Threshold Tempco

40

ppm/°C

t

P

RESET Propagation Delay

V

15

µs

-50 option

30

50

100

t

RDY

RESET Active Timeout Period

-200 option

150

250

400

ms

I

0.3

V

OL

RESET Low Output Voltage

RESET asserted

V

AAT3522, AAT3524

I

0.4

RESET asserted

V

OH

RESET High Output Voltage

I

V

V

AAT3522

I

0.3

V

OL

RESET Low Output Voltage

RESET not asserted

V

AAT3520

I

0.4

RESET not asserted

I

0.8V

CC

V

OH

RESET High Output Voltage

RESET asserted

V

AAT3520

I

0.8V

CC

RESET asserted

I

DOFF

RESET leakage current, AAT3524

V

1µA

Symbol

Description

Value

Units

Θ

JA

Maximum Thermal Resistance (SOT23-3)

1

200

°C/W

P

D

Maximum Power Dissipation (SOT23-3)

1

320

mW

Symbol

Description

Value

Units

V

CC

V

-0.3 to 5.5

V

V

RESET

RESET to GND (Push-Pull Output)

-0.3 to V

V

RESET to GND (Open Drain Output)

-0.3 to 5.5

I

MAX

Maximum Continuous Input Current

20

mA

I

RESET

RESET/RESET Current

20

mA

dVcc/dt

Rate of rise of Vcc

100

V/µs

T

J

Operating Junction Temperature Range

-40 to 150

°C

T

LEAD

Maximum Soldering Temperature (at Leads) for 10s

300

°C