MAX6720 Просмотр технического описания (PDF) - Maxim Integrated

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MAX6720

Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits

Maxim Integrated 

Dual/Triple Ultra-Low-Voltage SOT23 µP

Supervisory Circuits

Typical Operating Characteristics (continued)

(VCC1 = 5V, VCC2 = 3.3V, TA = +25°C, unless otherwise noted.)

RESET INPUT TO RESET OUTPUT DELAY

vs. TEMPERATURE

24.4

30mV OVERDRIVE

24.2

24.0

23.8

23.6

23.4

23.2

23.0

22.8

-40 -15

10

35

60

85

TEMPERATURE (°C)

POWER-FAIL INPUT TO POWER-FAIL

OUTPUT DELAY vs. TEMPERATURE

30mV OVERDRIVE

2.4

2.3

0

2.2

2.1

2.0

-40

-15 10

35

60

TEMPERATURE (°C)

0

85

MR TO RESET OUTPUT DELAY

MAX6715-29 toc12

VMR

2V/div

50ns/div

VRST

2V/div

Pin Description

PIN

MAX6715/ MAX6717/

MAX6716 MAX6718

MAX6719/

MAX6720

MAX6721/

MAX6722

MAX6723/

MAX6724

MAX6725/

MAX6726

MAX6727

MAX6728/ NAME

MAX6729

FUNCTION

Active-Low Reset Output,

Open-Drain or Push-Pull.

RST/RST1 changes from

high to low when VCC1 or

VCC2 drops below the

selected reset thresholds,

RSTIN is below threshold,

MR is pulled low, or the

watchdog triggers a

1

1

1

1

1

1

1, 4

1

RST/

RST1

reset. RST/RST1 remains

low for the reset timeout

period after VCC1/

VCC2/RSTIN exceed the

device reset thresholds,

MR goes low to high, or

the watchdog triggers a

reset. Open-drain outputs

require an external pullup

resistor. Push-pull

outputs are referenced to

VCC1.

6 _______________________________________________________________________________________

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