MP5991

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

MP5991 Rev. 1.0

MonolithicPower.com

11

4/27/2022

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© 2022 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS (continued)

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

Parameters

Symbol

Condition

Min

Typ

Max

Units

D_OC Output

Output low voltage

VD_OC_LOW

ISINK = 10mA

0.3

V

D_OC leakage current

ILKG_D_OC

VD_OC = 3.3V

1

μA

D_OC high to low

threshold (OC warning)

VD_OC_TH

Standalone mode, VOUT

≥ 90% of VIN,

0.3V ≤ VOCREF ≤ 1.8V

0.8

0.85

0.9

VCS /

VOCREF

Slave mode, VOUT

≥ 90% of VIN,

0.3V ≤ VOCWREF ≤ 1.8V

0.95

1

1.05

VCS /

VOCWREF

MOSFET Short Detection

MOSFET drain-to-source

(DS) short entry threshold

VOUT_DS_

ENTRY

Measured at VOUT during start-up

85

90

95

% of VIN

MOSFET DS short

recovery threshold

VOUT_DS_

RECOVERY

Measured at VOUT during start-up

65

70

75

% of VIN

Gate-to-source (GS) short

protection delay time (6)

tGS_DELAY

VSS > VCC - 0.7V

200

250

300

ms

Fault Type Indication Output (FLT_TYPE) (6 Indication Types)

Short-circuit FLT_TYPE

voltage (6)

VFLT_TYPE SC SCP

1.5

V

OC fault FLT_TYPE

voltage

VFLT_TYPE OC OCP during SS or normal operation

1.16

1.2

1.24

V

OT/OV fault FLT_TYPE

voltage

VFLT_TYPE

OT/OV

VIN OVP and OTP

0.865

0.9

0.935

V

MOSFET DS/GS short

FLT_TYPE voltage

VFLT_TYPE

DS/GS

MOSFET DS/GS short

0.57

0.6

0.63

V

GOK fault FLT_TYPE

voltage

VFLT_TYPE

GOK

GOK fault

0.275

0.3

0.325

V

FLT_TYPE voltage for

other conditions

VFLT_TYPE

OTHER

0.08

0.1

0.12

V

Thermal Shutdown

Thermal shutdown

threshold (6)

TSD

145

°C

Mode Selection (MODE)

MODE current

IMODE

9

10

11

μA

Hiccup mode with 250ms

auto-retry delay

VMODE1

RMODE =

30kΩ, tRETRY = 250ms

0.24

0.3

0.36

V

Hiccup mode with 500ms

auto-retry delay

VMODE2

RMODE

= 0Ω, tRETRY = 500ms

0

0.16

V

Hiccup mode with 1s auto-

retry delay

VMODE3

RMODE =

60kΩ, tRETRY = 1s

0.48

0.6

0.72

V

Slave mode

VMODE4

RMODE

= 120kΩ

0.96

1.2

1.44

V

Latch-off mode

VMODE5

MODE is pulled up to VDD33

1.68

V

Notes:

6) Guaranteed by design.