MPQ5069

– 7mΩ PROTECTION SWITCH WITH CURRENT MONITOR

MPQ5069 Rev. 1.1

www.MonolithicPower.com

5

11/19/2020

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

© 2020 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 12V, RSET = 10kΩ, COUT = 220μF, TJ = -40°C to +125°C, typical values are at TJ = 25°C, unless

otherwise noted.

Parameters

Symbol

Condition

Min

Typ

Max

Units

Supply Current

Quiescent current

IQ

EN = high, no load

1

2

mA

Fault latch-off

0.7

1.2

mA

EN = 0V, VIN = 12V

1

10

μA

Power FET

On resistance

RDS(ON)

7

12

m

Ω

Off-state leakage current

IOFF

VIN = 28V, EN = 0V,

OUT = 0V, TJ = 25°C

1

μA

Thermal Shutdown

Shutdown temperature (6)

167

°C

Hysteresis (6)

Auto-retry mode only

28

°C

Under-Voltage Protection

Under-voltage lockout threshold

VUVLO

Rising

4.15

5.5

V

Falling

2.7

3.8

5

V

UVLO hysteresis

VUVLOHYS

250

mV

AUTO Pin

Low-level input voltage

VAUTOL

Latch-off mode

1

V

High-level input voltage

VAUTOH

Auto-retry mode

2.5

V

Soft Start

SS pull-up current

ISS

ISS changes with input

3

6

9

μA

Current Limit

Current limit at normal operation

ILIMIT_NO

RSET = 10k

Ω

10.5

12.5

14.5

A

Current monitor accuracy

6A <

IOUT < 10A

-10

+10

%

Current limit response time (6)

ILIMIT = 3A, add a 3Ω load

20

μs

Secondary current limit (6)

ILIMIT_H

Any value of RSET

25

A

Short-circuit protection response

time (6)

200

ns

Timer

Upper threshold voltage

VTMRH

1

1.23

1.4

V

Lower threshold voltage

VTMRL

Over-current restart cycles

0.09

0.20

0.35

V

Fault restart duty cycle

0.1

0.25

0.5

%

Insertion delay charge current

IINSERT

15

40

60

μA

Fault detection charge current

IFLTD

80

200

300

μA

Fault restart sink current

IFLTS

0.15

0.5

0.8

μA

Discharge RON

IOUT < ILIMIT

15

35

80

Ω