MB39A125 查看數據表（PDF） - Fujitsu

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MB39A125

DC/DC Converter IC for Charging Li-ion Battery

Fujitsu 

MB39A125/126

3. Detection Function

(1) AC adapter voltage detection block (AC Comp.)

When ACIN terminal (pin 7) voltage is lower than 1.3 V (Typ) , AC adapter voltage detection block (AC Comp.)

outputs “Hi-Z” level to the ACOK terminal (pin 5) and outputs “L” level to the XACOK terminal (pin 18) . When

CTL terminal (pin 14) is set to “L” level, ACOK terminal (pin 5) and XACOK terminal (pin 18) are fixed to “Hi-Z” level.

ACIN

ACOK

XACOK

H

L

Hi-Z

L

Hi-Z

L

4. Switch Function : MB39A126

The charge voltage can be set to 16.8 V/12.6 V with the SEL terminal (pin 11) .

SEL function table

SEL

DC/DC output setting voltage

H

16.8 V

L

12.6 V

27

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