MAX6715A datasheet(3/18 Pages) MAXIM

Part #	MAX6715A

Description	Dual/Triple, Ultra-Low-Voltage, SOT23 uP Supervisory Circuits

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Manufacturer	MAXIM [Maxim Integrated Products]

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Dual/Triple, Ultra-Low-Voltage, SOT23 µP

Supervisory Circuits

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(VCC1 = 0.8V to 5.5V, VCC2 = 0.8V to 5.5V, GND = 0V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA =

+25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Reset Threshold Tempco

∆VTH/°C

20

ppm/°C

Reset Threshold Hysteresis

VHYST

Referenced to VTH typical

0.5

%

VCC to Reset Output Delay

tRD

VCC1 = (VTH1+ 100mV) to (VTH1 - 100mV) or

VCC2 = (VTH2 + 75mV) to (VTH2 - 75mV)

20

µs

D1

1.1

1.65

2.2

D2

8.8

13.2

17.6

D7 (MAX6797A only)

17.5

26.25

35

D8 (MAX6797A only)

35

52.5

70

D3

140

210

280

D5

280

420

560

D6

560

840

1120

Reset Timeout Period

tRP

D4

1120

1680

2240

ms

ADJUSTABLE RESET COMPARATOR INPUT (MAX6719A/MAX6720A/MAX6723A–MAX6727A)

RSTIN Input Threshold

VRSTIN

611

626.5

642

mV

RSTIN Input Current

IRSTIN

-100

+100

nA

RSTIN Hysteresis

3mV

RSTIN to Reset Output Delay

tRSTIND

VRSTIN to (VRSTIN - 30mV)

22

µs

POWER-FAIL INPUT (MAX6728A/MAX6729A)

PFI Input Threshold

VPFI

611

626.5

642

mV

PFI Input Current

IPFI

-100

+100

nA

PFI Hysteresis

VPFH

3mV

PFI to PFO Delay

tDPF

(VPFI + 30mV) to (VPFI - 30mV)

2

µs

MANUAL-RESET INPUT (MAX6715A–MAX6722A/MAX6725A–MAX6729A)

VIL

0.3

✕ VCC1

MR Input Voltage

VIH

0.7

✕ VCC1

V

MR Minimum Pulse Width

1µs

MR Glitch Rejection

100

ns

MR to Reset Delay

tMR

200

ns

MR Pullup Resistance

25

50

80

k

Ω

WATCHDOG INPUT (MAX6721A–MAX6729A)

First watchdog period after reset timeout

period

35

54

72

Watchdog Timeout Period

tWD

Normal mode

1.12

1.68

2.24

s

WDI Pulse Width

tWDI

(Note 2)

50

ns

VIL

0.3

✕ VCC1

WDI Input Voltage

VIH

0.7

✕ VCC1

V

WDI Input Current

IWDI

WDI = 0V or VCC1-1

+1

µA

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