M62241 データシートの表示（PDF） - MITSUBISHI ELECTRIC
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M62241 Datasheet PDF : 18 Pages
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MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
16. PC driving block
The control to the PC pin,for driving Photo Coupler, depends on each control of Adapter constant
voltage,Charge constant current and Charge constant voltage.
Vcc side : Photo Coupler off, output voltage rising
GND side : Photo Coupler on, output voltage falling
17.PC short control block
The Unusual mode is taken over in case the over current is detected during the Adapter mode.
This block is capable of fixing PC output into Vcc side and shutting down the primary power supply
current. All input and detection are disregarded in the Unusual mode. Only reset is capable of
returning from Unusual mode.
18.AC check detection block
AC Power off is recognized and Adapter mode is taken over, in case the PC pin voltage continues
more than the following voltage in cert ain period:
AC check voltage (Vacchk: Vcc-0.8V)
The detection timing is as follows:
60 msec. * 16times=960msec.(Foc=3.41KHz)
19. Timer Block
(1) Waiting timer after battery connection
This block pauses for following period from the battery connection detection to starting charge ,
so that every input is decided.
Waiting time : approximately 3.2 sec(Foc=3.41KHz)
(2) Display Timer
Counting the following time after starting to charge switches display from on/off to on.
Display timer : 30 minutes (Foc=3.41 KHz)
In trickle charge mode,this timer pauses to count. This timer resets counting to initialize before
charge restarting,in case the charge as counting or pausing stops because of the charge to the
adapter mode or the temperature protection mode.
Example of Display Timer
<1>In case charging starts in quick mode,
Charging
Counting End
|
Quick Counting 30min |
Counting End
on/off
on
Charge Completion
|
off
<2> In case quick mode starts ,then trickle mode is taken over after counting is end,
Charging
|
Quick
Counting
Counting end
30min | Quick Counting
Mode Change
end |Trickle Counting
Charge
end |
Completion
on/off
on
off
<3> In case charging starts in trickle mode,
Charging
|
Quick Counting of f
on/off
Charge Completion
|
off
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