MP5991

– 16V, 50A, 1mΩ RDS(ON), HOT-SWAP INTELLI-FUSE SOLUTION

MP5991 Rev. 1.0

MonolithicPower.com

9

4/27/2022

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2022 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 12V, RCS = 2kΩ, RIMON = 2kΩ, TA = 25°C, unless otherwise noted.

Parameters

Symbol

Condition

Min

Typ

Max

Units

Supply Current

Quiescent current

IQ

Intelli-Fuse is on, no load

2.5

2.9

mA

Fault protection, latch-off mode

2.3

2.7

mA

Intelli-Fuse is off, VON = 0V, VIN = 12V

2.3

2.7

mA

Intelli-Fuse is off, VON = 0V, VIN = 16V

2.3

2.7

mA

VDD33 Regulator and Under-Voltage Lockout (UVLO) Protection

VDD33 regulator output

voltage

VDD33

IVDD33 = 0mA

3.2

3.3

3.4

V

IVDD33 = 25mA

3.17

3.27

3.37

V

IVDD33 = 40mA

3.16

3.26

3.36

V

VDD33 under-voltage

lockout (UVLO) rising

threshold

VDD33_UVLO_

RISING

2.55

2.7

2.85

V

VDD33 UVLO falling

threshold

VDD33_UVLO_

FALLING

2.15

2.3

2.45

V

VDD33 UVLO hysteresis

VDD33_UVLO_

HYS

400

mV

VIN UVLO Protection and Over-Voltage Protection (OVP)

VIN UVLO rising threshold

VIN_UVLO_

RISING

3.05

3.2

3.35

V

VIN UVLO falling threshold

VIN_UVLO_

FALLING

2.55

2.7

2.95

V

Over-voltage protection

VOVP

17

18.5

20

V

OVP hysteresis

VOVP_HYS

Auto-retry

1

V

Power MOSFET

On resistance

RDS(ON)

TJ = 25°C, IFET = 2A

1

1.25

mΩ

TJ = 125°C, IFET = 2A

1.35

1.7

mΩ

Off-state leakage current

IOFF

VIN = 16V, MOSFET is off

1

μA

MOSFET On/Off Control (ON)

Internal ON current

ION

3.2

4.2

5.2

μA

ON input rising threshold

VON_RISING

VON is rising

1.3

1.4

1.5

V

ON input falling threshold

VON_FALLING VON is falling

1.1

1.2

1.3

V

MOSFET turn-on

hysteresis

VON_HYS

200

mV

MOSFET turn-on insertion

delay time

tON_DELAY

VDD33 > VDD33_UVLO_RISING,

VIN > VIN_UVLO_RISING

0.8

1.3

1.8

ms

ON blanking time

tON_BLANK

VON recycling

0.7

1

1.5

ms

Current Monitor Output (IMON)

IMON sense gain

gIMON

IIMON / IOUT, IOUT > 4A,

9.9

10

10.1

μA/A

IMON sense offset

IOUT > 4A

-0.6

+0.6

μA

Current-Sense Output (CS)

Current-sense gain

gCS

ICS / IOUT, IOUT > 4A

9.6

10

10.4

μA/A

Current-sense gain offset

IOUT > 4A

-1

+1

μA