MP3336 – DUAL-CHANNEL, FLASH LED DRIVER WITH I

MP3336 Rev.1.01

www.MonolithicPower.com

19

5/16/2017

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Table 3: Mode Setting Register

Addr: 0x01

Bit

Bit Name

Access

Default

Description

7

STR_LV

RW

1

Flash mode trigger mode with strobe pin signal.

0 = edge sensitive

1 = level sensitive

6

STR_MOD

RW

1

Strobe pin enable bit.

0 = software enable

1 = hardware enable

5

STR_POL

RW

1

Strobe pin signal input active polarity.

0 = active low

1 = active high

4

LED1_EN

RW

0

LED1 current source enable bit.

0 = LED current sink disable

1 = enable

3

LED2_EN

RW

0

LED2 current source enable bit.

0 = LED current sink disable

1 = enable

2:1

LED_MOD

RW

00

Device mode setting bits.

00 = standby/torch mode

01 = indicator mode

10 = assist mode

11 = flash mode

0

5V_MOD

RW

0

5V DC output enable bit.

0 = disable

1 = enable

Table 4: NTC Detection and Current Limit Setting Register

Addr: 0x02

Bit

Bit Name

Access

Default

Description

7:5

NTC_WD

RW

000

NTC pin detection window.

000 = off

001 = 0.6V

010 = 0.67V

……

111 = 1.02V

4:3

IL_PEAK

RW

01

Inductor current limit setting bits.

00 = 2A

01 = 2.5A

10 = 3.5A

11 = 4.5A

2

FS_SD

RW

0

Disable switching frequency stretching down from 1MHz if VIN is

close to VOUT.

1

BAL_ON

RW

0

Load balance matching enable bit.

0: LED voltage mismatch auto-balance disabled

1: LED voltage mismatch auto-balance enabled

0

NA

RW

NA

Reserved.