MP86952

– 70A INTELLI-PHASE™ SOLUTION WITH BUILT-IN MOSFETS AND DRIVERS

MP86952 Rev. 1.0

MonolithicPower.com

4

5/13/2021

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© 2021 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 12V, VDRV = VDD = VEN = 3.3V, TA = 25°C for typical values, TJ = -40°C to +125°C for maximum

and minimum values, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

IIN shutdown current

EN is low

90

180

μA

VIN under-voltage lockout

(UVLO) rising threshold

2.5

3

V

VIN UVLO threshold hysteresis

450

mV

IVDRV quiescent current

PWM is low

250

350

μA

IVDD quiescent current

PWM is low

3

mA

VDD UVLO rising threshold

2.75

2.95

V

VDD UVLO threshold hysteresis

300

mV

High-side (HS) current limit (5)

ILIM_FLT

Cycle-by-cycle, up to eight cycles

110

A

Low-side (LS) current limit (5)

Negative cycle-by-cycle current

limit, no fault report

-35

A

Negative LS current limit off

time (5)

200

ns

HS current limit shutdown

counter (5)

8

times

SW dead time (DT) rising (5)

2

ns

SW DT falling (5)

Positive IL

6

ns

Negative IL

28

ns

EN input logic high voltage

VEN_HIGH

2.3

V

EN input logic low voltage

VEN_LOW

0.8

V

PWM high to SW rising delay (5)

tRISING

20

ns

PWM low to SW falling delay (5)

tFALLING

20

ns

PWM tri-state to SW Hi-Z

delay (5)

tLT

40

ns

tTL

30

ns

tHT

40

ns

tTH

30

ns

Minimum PWM pulse width (5)

30

ns

IOUT sense gain accuracy (5)

20

A ≤ ISW ≤ 70A

-2

0

+2

%

IOUT sense gain

GIOUT

5

μA/A

IOUT sense offset

ISW = 0A, VIOUT = 1.2V, TJ = 25°C

-2

0

+2

μA

PWM is in a Hi-Z state, VIOUT = 1.2V

-1

0

+1

μA

IOUT voltage (5)

VIOUT

0.7

2.1

V

TOUT/FLT sense gain (5)

8

mV/°C

TOUT/FLT sense offset (5)

TJ = 25°C

800

mV

Over-temperature protection

(OTP) shutdown and fault flag (5)

160

°C

TOUT/FLT fault (5)

3

3.3

V

PWM resistor

Pull-up resistor, EN is high

6

kΩ

Pull-down resistor, EN is high

5

kΩ

PWM logic high voltage

2.3

V

PWM tri-state region

1.1

1.8

V

PWM logic low voltage

0.8

V

Note:

5) Guaranteed by design or characterization data. Not tested in production.