MPQ3324

– 8-CH LED DRIVER WITH I2C AND PWM AND ANALOG DIMMING, AEC-Q100

MPQ3324 Rev. 1.0

MonolithicPower.com

21

2/18/2021

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Channel 2 LED Current Setting

Addr: 0x10~13

Bit

Bit Name

Access

Default

Description

7:6

Reserved

R

00

Reserved.

5:0

ICH2 5:0

R/W

111111

Sets the channel 2 LED current for analog dimming, calculated

with the following equation:

LED

Code

I

=

ISET

63



Channel 2 PWM Dimming Duty Setting (LSB)

Addr: 0x11~14

Bit

Bit Name

Access

Default

Description

7:4

Reserved

R

0000

Reserved.

3:0

PWM2 3:0

R/W

1111

Sets the 4LSB for the channel 2 LED current PWM dimming

duty. The dimming duty only changes once 8MSB is written.

Channel 2 PWM Dimming Duty Setting (MSB)

Addr: 0x12~15

Bit

Bit Name

Access

Default

Description

7:0

PWM2 11:4

R/W

11111111

Sets the 8MSB for the channel 2 LED current PWM dimming

duty. The dimming duty only changes once 8MSB is written.

Channel 3 LED Current Setting

Addr: 0x16~19

Bit

Bit Name

Access

Default

Description

7:6

Reserved

R

00

Reserved.

5:0

ICH3 5:0

R/W

111111

Sets the channel 3 LED current for analog dimming, calculated

with the following equation:

LED

Code

I

=

ISET

63



Channel 3 PWM Dimming Duty Setting (LSB)

Addr: 0x17~1A

Bit

Bit Name

Access

Default

Description

7:4

Reserved

R

0000

Reserved.

3:0

PWM3 3:0

R/W

1111

Sets the 4LSB for the channel 3 LED current PWM dimming

duty. The dimming duty only changes once 8MSB is written.

Channel 3 PWM Dimming Duty Setting (MSB)

Addr: 0x18~1B

Bit

Bit Name

Access

Default

Description

7:0

PWM3 11:4

R/W

11111111

Sets the 8MSB for the channel 3 LED current PWM dimming

duty. The dimming duty only changes once 8MSB is written.