ILC1232N datasheet(2/5 Pages) IMPALA

No de pièce	ILC1232N

Description	mP Supervisory Circuit

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Fabricant	IMPALA [Impala Linear Corporation]

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Parameter

Symbol

Ratings

Units

VCC

-0.3 to 6.0

V

Terminal Voltage

All other inputs

-0.3 to (VCC + 0.3)

V

Input Current

VCC

250

mA

GND, All other

inputs

25

mA

Operating Temperature Range

TA

-40 to +85

°C

Storage Temperature Range

-65 to +150

°C

Lead Temperature (Soldering, 10 sec.)

300

°C

Power Dissipation

700

mW

Stresses above those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent device failure. Functionality at

or above these limits is not implied. Exposure to absolute maximum ratings for extended periods may affect device reliabil-

ity. Operating ranges define those limits between which the functionality of the device is guaranteed.

VCC = 4.5 V to 5.5 V, TA = Operating Temperature Range, unless otherwise noted.

Parameter

Conditions

Min

Typ

Max

Units

Operating Voltage Range, VCC

4.5

5.5

V

Supply Current, ICC

(See Note 1)

18

40

µA

ST and PBRST Input Levels

VIH (See Note 2)

VIL

2.0

-0.3

VCC + 0.3

0.8

V

Input Leakage, IIL

1

µA

Output Source Current, RST

VOH = 2.4V

1.0

10

mA

Output Sink Current, RST, RST

VOL = 0.4V

2.0

10

mA

VCC 5% Trip Point (Reset Threshold Voltage)

TOL= GND

4.50

4.62

4.74

V

VCC 10% Trip Point (Reset Threshold Voltage)

TOL= VCC

4.25

4.37

4.49

V

Input Capacitance, ST, TOL

CIN (See Note 3)

5

pF

Output Capacitance, RST, RST

COUT (See Note 3)

7

pF

PBRST Min. Pulse Width, tPB

PBRST = VIL (See Note 4)

20

ms

PBRST Delay, tPBD

1

4

20

ms

Reset Active Time, tRST

250

610

1000

ms

ST Pulse Width, tST

20

ns

ST Timeout Period, tTD

TD = 0V

TD = Open

TD = VCC

62.5

250

500

150

600

1200

250

1000

2000

ms

VCC Fall Time, tF

10

µs

VCC Rise Time, tR

0

ns

VCC Detect to RST Low and RST High, tRPD

VCC Falling at 1.66 mV/

µs

50

150

µs

VCC Detect to RST Open and RST Low, tRPU

VCC Rising (See Note 5)

250

610

1000

ms

Note 1: ICC is measured with outputs open and inputs within 0.5V of supply rails.

Note 2: PBRST has an internal 40k

Ω (typical) pull-up resistor to V

CC.

Note 3: Guaranteed by design.

Note 4: PBRST must be held low for a minimum of 20ms to guarantee a reset.

Note 5: RST has an open drain output.

ILC1232 mP Supervisory Circuit

Sept 1999

Impala Linear Corporation

2

(408) 574-3939

www.impalalinear.com

ILC1232 1.1

June 1999

Absolute Maximum Ratings

Electrical Characterisitcs

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