MP26085

CC/CV Controller

MP26085 Rev. 1.02

www.MonolithicPower.com

1

11/30/2015

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

© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP26085 is a voltage and current control IC

integrated a precision voltage reference and a

current source, which is suitable for battery

charger, second controller of switching regulator

systems, and other types of application required

an accurate voltage and current control systems.

This IC compares the DC voltage and the current

level at the output of a switching power supply to

the voltage reference and current limitation,

respectively. It provides a feedback through an

opto-coupler to the PWM controller IC at the

primary side.

The current source is controlled externally, which

can be used to modify the level of current

limitation by offsetting the information coming

from the current sensing resistor.

It is available in an 8-pin TSOT23 package.

FEATURES

• Constant Voltage and Constant Current

Control

• 1.223V built-in voltage reference with 1%

Accuracy

• Wide input voltage range: 7V to 20V

• Two Operational Amplifier with ORED Output

and 1MHz bandwidth

• Built-in

Current

Generator

with

Enable/Disable Function

• 8-Pin TSOT23 Package

APPLICATIONS

• Battery Chargers

• Every Types of Application Required an

Accurate Voltage and Current Control

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

For MPS green status, please visit MPS website under Quality

Assurance. “MPS” and “The Future of Analog IC Technology” are Registered

Trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

Controller

+

++

MP26085

To

Battery

Pack

COMP

VREF

IFB

IN

VFB

IREF

GND

ICON

GND

5V

Rs

R1

R2

C1

R3

R4

Rif

ACin

R5

R6

C2

C3

C4

C5

C6

C7

C8

R7

OPTO

Q1

T1

D1

L1