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ISL88021

Triple Voltage Monitor with Adjustable Power-On-Reset and Undervoltage/Overvoltage Monitoring Capability

Renesas Electronics 

ISL88021, ISL88022

Absolute Maximum Ratings

Temperature Under Bias . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

Voltage on Any Pin with Respect to GND . . . . . . . . . . . -1.0V to +7V

D.C. Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA

Recommended Operating Conditions

Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

Thermal Information

Thermal Resistance (Typical, Note 1)

JA (°C/W)

MSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .

145

Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C

Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C

(MSOP - Lead Tips Only)

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

1. JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

Electrical Specifications Over the recommended operating conditions unless otherwise specified.

SYMBOL

PARAMETER

TEST CONDITIONS

MIN

VDD

Supply Voltage Range

IDD1

VDD Supply Current

IDD2

V2MON Input Current

IDDA

V3MON Input Current

VOLTAGE THRESHOLDS

2.0

VDD = 5.0V

V2MON = 3.3V

V3MON = 1.0V

VTH1

Fixed Voltage Trip Point for VDD

ISL88021/22IU8HxZ

ISL88021/22IU8FxZ

4.565

3.029

VTH1HYST Hysteresis of VTH1

VTH2

Fixed Voltage Trip Point for V2MON

VTH1 = 4.64V

VTH1 = 3.09V

ISL88021/22IU8xFZ

ISL88021/22IU8xEZ

3.034

2.894

ISL88021/22IU8xCZ

2.290

ISL88021/22IU8xAZ

1.660

VTH2HYST Hysteresis of VTH2

VTH3

V3MON Threshold Voltage

VREFHYST Hysteresis Voltage

RESET

VTH2 = 3.09V

VTH2 = 2.92V

VTH2 = 2.32V

VTH2 = 2.19V

VTH2 = 1.69V

VTH for V3MON on ISL88021

VTH for V3MON on ISL88022

0.594

0.587

VOL

Reset Output Voltage Low

VOH

RST Output Voltage High

tRPD

tPOR

CLOAD

VTH to Reset Asserted Delay

POR Timeout Delay

Load Capacitance on Reset Pins

VDD  3.3V, Sinking 2.5mA

VDD < 3.3V, Sinking 1.5mA

VDD  3.3V, Sourcing 2.5mA

VDD < 3.3V, Sourcing 1.5mA

CPOR is open

VDD-0.6

VDD-0.6

140

TYP

12.5

5.5

19

4.649

3.085

46

37

3.090

2.947

2.332

1.690

37

29

23

22

17

0.605

0.595

3

0.05

0.05

VDD-0.4

VDD-0.4

10

200

5

MAX

5.5

15

6

100

4.733

3.141

3.146

3.000

2.374

1.720

0.616

0.603

0.40

0.40

UNITS

V

µA

µA

nA

V

V

mV

mV

V

V

V

V

mV

mV

mV

mV

mV

V

V

mV

V

V

V

V

µs

ms

pF

FN8226 Rev 1.00

September 18, 2006

Page 3 of 8

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