MP26085

– CC/CV CONTROLLER

MP26085 Rev. 1.02

www.MonolithicPower.com

4

11/30/2015

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PIN FUNCTIONS

Package

Pin #

Name

Description

1

IFB

Current feedback. Connected to the sense resistor.

2

IREF

Current Limitation Reference Input. An external resistor divider (sum is 44kΩ) from the

VREF to GND tapped to the IREF pin sets the current reference.

3

GND

Ground

4

COMP

Output pin common to the voltage regulation and current limitation loops. This output

can drive the primary side (LED) of an opto-coupler.

5

VFB

Voltage feedback. An external resistor divider from the output to GND tapped to the FB

pin sets the output voltage.

6

VREF

Internal voltage reference output. This voltage is used to generate the voltage and

current reference.

7

IN

Power Supply Input. Bypass VIN to GND with a 4.7μF or greater capacitor.

8

ICON

Current source enable input. This current source can be used to offset the voltage

measurement on the sense resistor and therefore to modify the charge current. The

current source enabled when the input voltage on ICON pin is lower than 0.6V.