MAX6772 datasheet(4/23 Pages) MAXIM

Part #	MAX6772

Description	Automotive Micropower Linear Regulators with Supervisor

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Manufacturer	MAXIM [Maxim Integrated Products]

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Automotive Micropower Linear Regulators

with Supervisor

4

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VIN = 14V, CIN = 0.1µF, COUT = 10µF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = TJ = +25°C.)

(Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

L/T/Z/W, SET = resistive divider, RESET

falling

VOUT x

0.9

VOUT x

0.925

VOUT x

0.950

RESET Threshold (Adjustable

Output Voltage)

M/S/Y/V, SET = resistive divider, RESET

falling

VOUT x

0.85

VOUT x

0.875

VOUT x

0.900

V

RESETIN Input Current

RESETIN = GND or 12V

-100

+100

nA

VTH = 87.5% of VSET (M/S/Y/V),

RESET falling

1.057

1.085

1.112

RESETIN Threshold

VTH = 92.5% of VSET (L/T/Z/W),

RESET falling

1.118

1.147

1.176

V

OUT to RESET Delay

VOUT falling

0.3

µs

RESETIN To RESET Delay

RESETIN falling

35

µs

D0

75

µs

D1

2.187

3.125

4.063

D2

8.75

12.5

16.25

D3

35

50

65

RESET Timeout Period (TIMEOUT

Connected to OUT)

VOUT rising

D4

140

200

260

ms

TIMEOUT Ramp Current

800

1000

1200

nA

TIMEOUT Ramp Threshold

1.160

1.22

1.259

V

VOUT ≥ 1.8V, ISINK = 50µA,

RESET asserted

0.3

RESET Output-Voltage Low

(Open Drain or Push-Pull)

VOL

VOUT ≥ 1.8V, ISINK = 3.2mA,

RESET asserted

0.4

V

RESET Output-Voltage High

(Push-Pull)

VOH

VOUT ≥ 1.8V, ISOURCE = 250µA,

RESET not asserted

0.8 x

VOUT

V

RESET Open-Drain Leakage

Current

RESET not asserted, RESET = 12V

100

nA

Watchdog Minimum Input Pulse

tWDI

1.8V ≤ VOUT ≤ 11V

1

µs

Watchdog Input Low Voltage

VIL

1.8V ≤ VOUT ≤ 11V

0.4

V

Watchdog Input High Voltage

VIH

1.8V ≤ VOUT ≤ 11V

VOUT

- 0.4V

V

Watchdog Input Low Voltage

VIL

1.8V ≤ VOUT ≤ 11V

0.4

V

Watchdog Input Current

IWDI

WDI = 0V or WDI = 12V

-1

+1

µA

Watchdog Timeout Period

tWD

1.12

1.6

2.08

s

Note 1: Production tested at TA = +25°C. Overtemperature limits are guaranteed by design.

Note 2: Device tested at internally set voltage.

Note 3: Dropout voltage for L/M versions is defined as (VIN - VOUT) when VOUT equals 98% of the nominal value of VOUT when

VIN = 11V. For T/S versions, dropout voltage is defined as (VIN - VOUT) when VOUT equals 98% of the nominal value of VOUT

when VIN = 9.3V.

Note 4: Observe the absolute maximum power dissipation limits.

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