MP5000A

12V, 5A Programmable Current

Limit Switch

MP5000A Rev. 1.01

www.MonolithicPower.com

1

10/16/2014

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The Future of Analog IC Technology

DESCRIPTION

The MP5000A is a protection device designed to

protect circuitry on the output (source) from

undesired shorts and transients coming from the

source.

At start up, inrush current is limited by limiting the

slew rate at the source. The slew rate is

controlled by a small capacitor at the dv/dt pin.

The dv/dt pin has an internal circuit that allows

the customer to float this pin (no connect) and

still receive 0.9ms ramp time at the source.

The maximum load at the output (source) is

current limited. This is accomplished by utilizing a

sense FET topology. The magnitude of the

current limit is controlled by an external resistor

from the I-Limit pin to the Source pin.

An internal charge pump drives the gate of the

power device, allowing a very low on-resistance

DMOS power FET of just 40mΩ.

too low or too high. Under Voltage Lockout

operating threshold, before the power device is

threshold, the source voltage will be limited.

FEATURES

• Integrated 40mΩ Power FET

• Enable/Fault Pin

• Adjustable Slew Rate for Output Voltage

• Adjustable Current Limit: 1-5A

• Thermal Protection

• Over Voltage Limit

• Low Inrush Current

APPLICATIONS

• Hot Swap

• PC Cards

• Laptops

TYPICAL APPLICATION

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Products, Quality Assurance page.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.