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

10. The Charge Completion Detection Block

The charge completion mode is taken over in case the charge current in charge mode is less than the detection current.

This detection depends on the gained current output.

The referential voltage for detection is set by the dividing ratio between resistors connected to ADJ3 pin. This detection

is discharged except during charging.

The detection timings is as follows:

600 ms × 8 times = 4.8 s (foc = 3.41 kHz)

11. The Adapter Over Current Mode

The unusual mode is taken over in case the current majored in the adapter mode is less than the detection current.

The referential voltage for the detection is set by the dividing ratio between the resistors connected to ADJ0 pin.

The detection is disregarded except in adapter mode.

Detection timing is as follows:

3.0 s × 4 times = 12 s (foc = 3.41 kHz)

12. LED Driving Block

This block controls LED driving pin by each mode.

Adapter mode:

off

No battery connection mode: off

Charge mode:

During display timer counting — on/off

After display timer counting — on

Over discharge mode:

on/off

Temperature protection mode: on/off

Charge completion mode:

off

Charge NG mode:

off

Unusual mode:

off

Note: LED on/off timing is 1/1.5 Hz (0.9 s on/0.6 s off) respectively.

13. The Regulated Referential Power Supply Block

The charge of output REFOUT pin voltage depends on inside band gap voltage as the reference and the gained voltage

of the changeable resistance connected to REFOUT pin.

This block uses REFOUT output voltage as reference and controls the charge constant voltage and every reference both

inside and outside.

REFOUT typical voltage: 1/3 of the battery charge constant voltage

14. Adapter Detection Block

The adapter connection input switches the mode as follows:

OPEN (H) detection: Adapter connection

GND (L) detection: No adapter connection

The detection timing is as follows:

12 ms × 2 times = 24 ms (foc = 3.41 kHz)

REJ03F0240-0200 Rev.2.00 Jun 16, 2008

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