MIC79110-4.2BML datasheet(4/10 Pages) MICREL

Teilenummer	MIC79110-4.2BML

Bauteilbeschribung	Simple 1.2A Linear Li-Ion Battery Charger

PDF	10 Pages

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Hersteller	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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4 / 10 page

MIC79110

Micrel

M9999-072004

July 2004

Block Diagram

VIN

RSET

VREF

BAT

DEOC

GND

ACHG

REOC

SNS

Current

Limit Set

Thermal

Shutdown

End of

Charge

Detect

Current

Limit Sense

MIC79110 Block Diagram

3. Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.

For outputs below 2.5V, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.5V. Minimum input operating

voltage is 2.5V.

4. Vnom denotes the nominal output voltage.

5. IR

SET = (0.2V/RSET) * 1000

6. Output Current I

EOC when Digital End-of-Charge output goes high impedance. Currents greater than IEOC, the DEOC output is low, currents lower

than I

EOC, DEOC is high impedance.

7. I

EOC = (0.2V/REOC) * 1000

8. I

SOURCE is the current output from ACHG pin. A resistor to ground from the ACHG pin will program a voltage that is proportional to the output current.

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