MFS5600AMBA0ES datasheet(74/111 Pages) NXP

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NXP Semiconductors

FS5600

Automotive buck regulator and controller with voltage monitors and watchdog timer

18.1.11 WATCHDOG_CTRL2 register

Bit

Symbol

Description

15 to 12

WD_WINDOW[3:0]

Watchdog window duration,

Applied only when WD_WD_WINDOW[3:0] = NOT(NOT_WD_

WINDOW[3:0])

4b'0000 — Infinite.

4b'0001 — 1 ms.

4b'0010 — 2 ms.

4b'0011 — 3 ms.

4b'0100 — 4 ms.

4b'0101 — 6 ms.

4b'0110 — 8 ms.

4b'0111 — 12 ms.

4b'1000 — 16 ms.

4b'1001 — 24 ms.

4b'1010 — 32 ms.

4b'1011 — 64 ms.

4b'1100 — 128 ms.

4b'1101 — 256 ms.

4b'1110 — 512 ms.

4b'1111 — 1024 ms.

Reset Condition — POR

10 to 8

WDW_DC[2:0]

Watchdog window duty cycle.

Applied only when WDW_DC[2:0] = NOT(NOT_WDW_DC[2:0]).

3b'000 — Closed window 31.25 % Open window 68.75 %.

3b'001 — Closed window 37.5 % Open window 62.5 %.

3b'010 — Closed window 50 % Open window 50 %.

3b'011 — Closed window 62.5 % Open window 37.5 %.

3b'100 — Closed window 68.75 % Open window 31.25 %.

3b'101 — Closed window 50 % Open window 50 %.

3b'110 — Closed window 50 % Open window 50 %.

3b'111 — Closed window 50 % Open window 50 %.

Reset Condition — POR

Table 66. WATCHDOG_CTRL2 register description

18.1.12 NOT_WATCHDOG_CTRL2 register

Bit

Symbol

Description

15 to 12

NOT_WD_WINDOW[3:0]

Watchdog window duration.

4b'0000 - 4b’1111 — See WD_WINDOW[3:0] in WATCHDOG_CTRL2

Reset Condition — POR

10 to 8

NOT_WDW_DC[2:0]

Watchdog window duty cycle.

3b'000 - 3b’111 — See WDW_DC[2:0] in WATCHDOG_CTRL2

Reset Condition — POR

Table 67. NOT_WATCHDOG_CTRL2 register description

FS5600

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3 — 2 August 2022

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