MPQ5069

7m

Ω Protection Switch with Current Monitor

for Automotive Battery Systems

AEC-Q100 Qualified

MPQ5069 Rev. 1.1

www.MonolithicPower.com

1

11/19/2020

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

© 2020 MPS. All Rights Reserved.

DESCRIPTION

The MPQ5069 is a hot-swap protection device

designed to protect circuitry on its output from

transients on its input. It also protects its input

from undesired shorts and transients coming

from its output.

During start-up, the slew rate at the output limits

the inrush current. An external capacitor at the

SS pin controls the slew rate.

The maximum output load is current-limited using

a sense FET topology whereby a low-power

resistor from the ISET pin to ground controls the

magnitude of the current limit. An internal charge

pump drives the gate of the power device,

allowing for a power FET with a very low on

resistance of 7mΩ. The MPQ5069 includes an

IMON option to produce a voltage proportional to

the current through the power device, as set by a

resistor from the IMON pin to ground.

The MPQ5069

’s fault protections include current-

limit protection, thermal shutdown, and damaged-

MOSFET detection. Both the current limit and

thermal shutdown offer configurable auto-retry

and latch-off mode. The device also features

under-voltage protection.

The

MPQ5069

is

available

in

a

QFN-22

(3mmx5mm) package and is AEC-Q100 qualified.

FEATURES

 Integrated 7mΩ Power MOSFET

 Adjustable Current Limit (5A to 15A)

 Output Current Measurement

 ±10% Current Monitor Accuracy

 Fast Response (200ns) for Short Protection

 PG Detector and FLTB Indication

 PG Asserts Low when V

IN = 0V

 Damaged MOSFET Detection

 External Soft Start

 Under-Voltage Lockout

 Thermal Protection

 Available in a QFN-22 (3mmx5mm) Package

 Available in AEC-Q100 Grade 1

APPLICATIONS



Automotive Infotainment



Automotive Clusters



Advanced Driver Assistance Systems



Automotive Systems

TYPICAL APPLICATION

VOUT

ISET

IMON

PG

FLTB

AUTO

VIN

OUT

EN

PD

VIN

MPQ5069

1

12

7

2

5

9

10

11

13-20

RMON

21-22

RSET

COUT

CSS

GND

CMON

TIMER

CT

4

SS

6

FB

8

R3

R2

R4

R5

5V

PG

FAULT

R1

IMON

EN

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.

For MPS green status, please visit the MPS website under Quality

Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.