Data Sheet

ADP1649

Rev. 0 | Page 21 of 28

Table 13. Output Mode Register (Register 0x04)

Bit

Bit Name

R/W

Description

[7:6]

IL_PEAK

R/W

Inductor peak current-limit setting

00 = 1.75 A

01 = 2.25 A

10 = 2.75 A (default)

11 = reserved

5

STR_LV

R/W

0 = edge sensitive

1 = level sensitive (default)

4

FREQ_FB

R/W

0 = frequency foldback to 1.5 MHz not allowed (default)

1 = frequency foldback to 1.5 MHz allowed

3

OUTPUT_EN

R/W

0 = output off (default)

1 = output on

2

STR_MODE

R/W

0 = software strobe mode (software flash occurs when output is enabled in flash mode)

1 = hardware strobe mode (the STROBE pin must go high for flash) (default)

[1:0]

LED_MOD

R/W

Configures LED output mode

00 = standby mode (default)

01 = voltage output mode, VOUT = 5 V

10 = assist light mode

11 = flash mode

Table 14. Fault Information Register (Register 0x05)

Bit

Bit Name

R/W

Description

7

FL_OVP

R

0 = no fault (default)

1 = overvoltage fault

6

FL_SC

R

0 = no fault (default)

1 = short-circuit fault

5

FL_OT

R

0 = no fault (default)

1 = overtemperature fault

4

FL_TO

R

0 = no fault (default)

1 = timeout fault

3

FL_TX1

R

0 = no TxMASK1 operation mode during last flash (default)

1 = TxMASK1 operational mode occurred during last flash

2

FL_IO2

R

If GPIO2 is configured as TxMASK2

0 = no TxMASK2 operation mode during last flash (default)

1 = TxMASK2 operational mode occurred during last flash

If GPIO2 is configured as ILED

0 = no fault (default)

1 = indicator LED fault

1

FL_IL

R

0 = no fault (default)

1 = inductor peak current-limit fault

0

FL_IDC

R

0 = programmed dc current limit is not hit (default)

1 = programmed dc current limit is hit