MAX6321 datasheet(2/16 Pages) MAXIM

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ELECTRICAL CHARACTERISTICS

(VCC = 2.5V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

5-Pin µP Supervisory Circuits with

Watchdog and Manual Reset

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Voltage (with respect to GND)

VCC......................................................................-0.3V to +6V

RESET (MAX6320/MAX6321/MAX6322 only)...... -0.3V to +6V

All Other Pins.........................................-0.3V to (VCC + 0.3V)

Input/Output Current, All Pins .............................................20mA

Continuous Power Dissipation (TA = +70°C)

SOT23-5 (derate 7.1mW/°C above +70°C)...............571mW

Operating Temperature Range............................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range..............................-65°C to +160°C

Lead Temperature (soldering, 10sec)..............................+300°C

VCC - 1.5

0.8 x VCC

VOH

0.4

0.3

VOL

RESET Output Voltage

µs

tRD

VCC to RESET Delay

1120

1600

2240

140

200

280

1.4

tRP

Reset Active Timeout Period

Reset Threshold Hysteresis

5.5

VCC

Operating Voltage Range

VTH -2.5% VTH VTH +2.5%

VTH -1.5% VTH VTH +1.5%

VRST

Reset Threshold (Note 2)

ppm/°C

∆VTH/°C

Reset Threshold Temperature

Coefficient

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

VCC ≥ 4.5V, ISOURCE = 800µA

VCC ≥ 2.7V, ISOURCE = 500µA

VCC ≥ 4.5V, ISINK = 3.2mA

VCC ≥ 2.7V, ISINK = 1.2mA

VCC ≥ 1.2V, ISINK = 100µA

VCC ≥ 1.0V, ISINK = 50µA

TA = -40°C to +85°C

VCC falling at 1mV/µs

MAX63_ _D_-T

TA = -40°C to +85°C

TA = +25°C

MAX63_ _C_-T

MAX63_ _B_-T

MAX63_ _A_-T

CONDITIONS

0.3

VOL

RESET Output Voltage

VCC ≥ 2.7V, ISINK = 1.2mA

0.4

VCC ≥ 4.5V, ISINK = 3.2mA

0.8 x VCC

VOH

VCC ≥ 1.8V, ISOURCE = 150µA

0.8 x VCC

VCC ≥ 2.7V, ISOURCE = 500µA

VCC - 1.5

VCC ≥ 4.5V, ISOURCE = 800µA

Note 1: Over-temperature limits are guaranteed by design, not production tested.

Note 2: A factory-trimmed voltage divider programs the nominal reset threshold (VTH). Factory-trimmed reset thresholds are

available in 100mV increments from 2.5V to 5V (see Table 1 at end of data sheet).

MAX6316/MAX6317/MAX6318/

MAX6320/MAX6321:

MR and WDI unconnected

µA

ICC

Supply Current

VCC = 5.5V

512

VCC = 3.6V

MAX6319/MAX6322:

MR unconnected

512

VCC = 5.5V

VCC = 3.6V

PUSH/PULL RESET OUTPUT (MAX6316L/MAX6317H/MAX6318_H/MAX6319_H/MAX6321HP/MAX6322HP)

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