MP5000 – 12V, 1A-5A PROGRAMMABLE CURRENT LIMIT SWITCH

MP5000 Rev. 1.41

www.MonolithicPower.com

4

9/6/2013

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PIN FUNCTIONS

Pin #

Name

Description

1

GND

Negative Input Voltage to the Device. This is used as the internal reference for the IC.

2

dv/dt

The internal dv/dt circuit controls the slew rate of the output voltage at turn on. It has an

internal capacitor that allows it to ramp up over the period of 1.1ms. An external

capacitor can be added to this pin to increase the ramp time. If an additional time delay

is not required, this pin should be left open.

3

Enable/Fault

The Enable/Fault pin is a tri-state, bi-directional interface. It can be used to enable the

output of the device by floating the pin, or disable the chip by pulling it to ground (using

an open drain or open collector device). If a thermal fault occurs, the voltage on this pin

will go to an intermediate state to signal a monitoring circuit that the device is in thermal

shutdown. See text:

“ENABLE/FAULT PIN”.

4

I-Limit

A resistor between this pin and the Source pin sets the overload and short circuit

current limit levels.

5

N/C

DO NOT CONNECT. Pin must be left floating.

6-10

SOURCE

This pin is the source of the internal power FET and the output terminal of the IC.

11

(Exposed Pad)

Positive input voltage to the device (exposed pad).