M62241FP データシートの表示（PDF） - Renesas Electronics

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M62241FP

Single Chip Battery Charger Control IC

Renesas Electronics 

M62241FP

15. Adapter Mode Control Block

The detection of adapter connection changes all modes except unusual mode into adapter mode.

The next mode after adapter mode depends on the previous mode.

Previous mode

→ Next mode

No connection

→ No connection

Charge

→ Charge (after initialization)

Over discharge

→ Charge (after initialization)

Temperature protection → Charge (after initialization)

Charge completion → Charge completion

Charge NG

→ Charge NG

Note: The detection of no battery connecting during adapter mode disregards the previous mode and takes over no

battery mode.

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 certain period:

AC check voltage (Vacchk: Vcc – 0.8 V)

The detection timing is as follows:

60 ms × 16 times = 960 ms (foc = 3.41 kHz)

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 s (foc = 3.41 kHz)

REJ03F0240-0200 Rev.2.00 Jun 16, 2008

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