MFS2301BMBACEP datasheet(31/230 Pages) NXP

31 / 230 page

NXP Semiconductors

FS23

Safety system basis chip (SBC) with power management, CAN FD and LIN transceivers

VBOS_LP enabled

VBOS_HP disabled

VBOS_LP enabled

VBOS_HP disabled

VBOS_LP enabled

VBOS_HP disabled

HP analog enabled

And Mode != (Slot0 to

LPOFF or LPOFF or LPON)

(M9 or M11 or M12)

Mode = Slot0 to LPOFF or LPOFF (M9 or M11)

Or (Mode = LPON (M12) and VBOS2V1_SW_LP_EN_OTP = 0)

Or (Mode = M2 and VBOS2V1SW_ALWAYS_EN = 0)

(Mode = NORMAL (M7) and VBOS2V1SW_ALWAYS_EN = 1)

Or (Mode = M8 and Go2LPON_latch = 1 and

VBOS2V1_SW_LP_EN_OTP = 1)

Legend: BLEU: Device action, BLACK: Device state

VBOS_LP disabled

VBOS_HP disabled

VBOS = V1 (switch closed)

BOS_1

VBOS_LP

BOS_2

VBOS_HP

BOS_3

VBOS_V1

aaa-051442

From any

Mx state

VBOS < VBOS_por

Or VDIG < VDIG_por

Or VDIG > VDIG_ov

VBOS > VBOS_por

And VDIG > VDIG_por

And VDIG < VDIG_ov

POR

Mode = Slot0 to LPOFF or LPOFF (M9 or M11)

Or (Mode = M2 and VBOS2V1SW_ALWAYS_EN = 0)

Mode = FAIL SAFE

In HVBUCK configuration only

Figure 18. Simplified VBOS state diagram

FS23

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Product data sheet

Rev. 7.0 — 16 October 2024

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