AP4201 datasheet(6/27 Pages) AKM

6 / 27 page

[AP4201]

015008157-E-00

- 6 -

2015/09

PWMSET

VDC1

PWM period setting pin. (100kohm pull down)

Connect to VDC1 pin or set to open.

If connect to GND (or open),

PWM gradation period= low speed 546µs(typ.)

If connect to VDC1 pin,

PWM gradation period= high speed 364µs(typ.)

VDC2

Internal

circuit

VIN

Internal 1.8V LDO output pin.

Drive external circuit is prohibited.

Connect a 1.0µF capacitor between the VDC2 pin and

GND.

VDC1

Internal

circuit

VIN

Internal 5V LDO output pin.

External current capability is 30mA maximum.

Connect a 1.0µF capacitor between the VDC terminal and

GND.

GND

Ground

VIN

VDC

IC power input pin.

Internal 5V LDO’s output and 1.8V output.

Connect a 1.0µF capacitor between the VDC terminal and

GND.

ISET_R

1.0V

VDC1

Current setting pin for LEDR0~8.

Connect an external resistor between this pin and GND.

ISET_G

Same as 14-pin

The pin which set the current of LEDG0~8. (same as 14

pin)

ISET_B

Same as 14-pin

The pin which set the current of LEDB0~8. (same as 14

pin)

LEDR8

R8 pin (connect to LED cathode).Current source/open

drain output.

Control the internal MONFET to drive LED with lighting

setting.

LEDG8

Same as 17-pin

G8 pin (connect to LED cathode).Current source/open

drain output.

Control the internal MONFET to drive LED with lighting

setting.

LEDB8

Same as 17-pin

B8 pin (connect to LED cathode).Current source/open

drain output.

Control the internal MONFET to drive LED with lighting

setting.

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