MP86905

– INTELLI-PHASE SOLUTION W/ INTEGRATED MOSFETS AND DRIVERS

MP86905 Rev. 1.1

www.MonolithicPower.com

4

8/31/2020

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© 2020 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 12V, VDRV = VDD = EN = 3.3V, TA = 25°C for typical value and TJ = -40°C to 125°C for max

and min values, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

IIN shutdown

IVIN Off

EN = low

40

μA

VIN under-voltage lockout

threshold rising

2.5

3.0

V

VIN under-voltage lockout

threshold hysteresis

540

600

660

mV

IVDRV quiescent current

EN = low

15

μA

PWM = low

80

μA

IVDD quiescent current

EN = low

45

μA

PWM = low

4

5

mA

VDD voltage UVLO rising

2.8

2.9

V

VDD voltage UVLO hysteresis

120

250

380

mV

VDRV voltage UVLO rising

2.75

2.9

V

VDRV voltage UVLO hysteresis

360

400

440

mV

High-side current limit(4)

ILIM_FLT

Cycle-by-cycle up to four

cycles

75

A

Low-side current limit(4)

Negative current limit,

cycle-by-cycle, no fault

report

-30

A

Negative current limit low-side off

time(4)

40

ns

High-side current limit shutdown

counter(4)

4

times

EN input low threshold voltage

0.95

1.0

1.05

V

EN input high threshold voltage

1.15

1.2

1.25

V

Dead time rising(4)

3

ns

Dead time falling(4)

Positive inductor current

6

ns

Negative inductor

current

35

ns

SYNC internal pull-down resistor

RSYNC

100

k

Ω

SYNC logic high voltage

2

V

SYNC logic low voltage

0.8

V

PWM high-to-SW rising delay(4)

tRising

15

ns

PWM low-to-SW falling delay(4)

tFalling

15

ns

PWM tri-state to SW Hi-Z delay(4)

tLT

40

ns

tTL

20

ns

tHT

40

ns

tTH

20

ns