MP26056DQ datasheet(4/11 Pages) MPS

Part #	MP26056DQ

Description	28V, Li Single-Cell Battery Charger with USB/AC-Adapter Input

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Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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4 / 11 page

MP26056- 28V, LI+SINGLE-CELL BATTERY CHARGER WITH USB/AC-ADAPTER INPUT

MP26056 Rev. 0.91

www.MonolithicPower.com

4

3/30/2009

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

PIN FUNCTIONS

Pin #

Name

Description

1

IN

Input Supply Pin. IN receives the AC adapter or USB supply voltage.

2

ACOK

Open-Drain OVP Indicator. This pin is low when 3.5V < VIN < 6.5V.

3

CHG

Open-Drain Charge Indicator. This pin is low during charging, is High after battery full or

termination,

4

MOD

USB input enable pin. Active High. Used to reduce charge current when USB is the

supply.

5

GND,

Exposed Pad

Ground. Exposed Pad must be connected to GND plane.

6

SHDN

Charger IC Enable. An input “Low” signal at this pin or if the pin is floating will enable

the IC. An input “High” will disable the IC.

7

IBF

Charge Status Threshold Program. Connect this pin to an external resistor to program

the charge termination current or battery full indication threshold. IBF=1.7/Rbf

8

ISET1

USB Constant Charge Current Program pin. Connect this pin to an external resistor to

program the charging current in CC Mode. ICHG=1.7/Rset1 when Mod=HIGH

9

ISET2

Additional Constant Charge Current Program pin for AC input. Connect this pin to an

external resistor to program the charging current in AC Mode. ICHG =1.7/(Rset1// Rset2)

when Mod=LOW

10

BATT

Charger Output.

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