MP3336 – DUAL-CHANNEL, FLASH LED DRIVER WITH I

MP3336 Rev.1.01

www.MonolithicPower.com

24

5/16/2017

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Table 16: Fault and Flag Indication Register

Addr: 0x0E

Bit

Bit Name

Access

Default

Description

7

FT_VBATL

R

0

Low battery voltage fault bit.

0 = no fault

1 = fault

6

FT_OVP

R

0

Output over-voltage fault bit.

0 = no fault

1 = fault

5

FT_VOSC

R

0

VOUT-GND short fault bit.

0 = no fault

1 = fault

4

FT_LEDSC

R

0

LED short fault bit.

0 = no fault

1 = fault

3

FT_OTP

R

0

Junction over-temperature fault bit.

0 = no fault

1 = fault

2

FT_TO

R

0

Flash time-out indicator bit.

0 = no fault

1 = fault

1

FT_TX

R

0

TX high indicator bit.

0 = no fault

1 = fault

0

FT_IDC

R

0

Input DC current limit fault bit.

0 = no fault

1 = fault

Table 17: Fault Indication and Blink Time Setting Register

Addr: 0x0F

Bit

Bit Name

Access

Default

Description

7:6

TBK

R/W

01

Blinking time setting bits in indicator mode.

00: no blinking, LED remains on

01: Tblink = 128ms

10: Tblink = 256ms

11: Tblink = 512ms

5:4

NA

R

NA

Reserved.

3

BAL_1AB2

R

0

1: VLED1 ≥ VLED2 + 130mV

0: VLED1 < VLED2 + 130mV

2

BAL_2AB1

R

0

1: VLED2 ≥ VLED1 + 130mV

0: VLED2 < VLED1 + 130mV

1

FT_LEDHOT

R

0

NTC fault bit.

0 = no fault

1 = fault

0

FT_LEDOP

R

0

LED open fault bit.

0 = no fault

1 = fault