LM5177DCPR datasheet(36/60 Pages) TI2

Part #	LM5177DCPR

Description	LM5177 60V Wide VIN Bidirectional 4-Switch Buck-Boost Controller

PDF	60 Pages

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Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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36 / 60 page

TSD

POWE R_S TA GE_OFF

r2d_ read_ done

V(EN/UVLO) > VIT+(UVLO)

V(VCC) > VIT+(VCC)

BOO T_ UV = 0

VI < VIT± UVLO)

BOO T_ UV = 1

V(VCC) < VIT+(VCC)

MAIN_ LOGIC_ON

TJ > TJT+

TJ < TJT-

entry: discharge C(SS)

POWE R_S TA GE_A CTIVE

V(EN) > VT+(EN)

DEVICE_OFF

V(EN) < VT-(EN)

READ_R2D

entry: discharge C(SS)

HOLD_R2D

r2d_ read_ done

!r2d_re ad_do ne

Figure 7-21. Functional State Diagram

DEVICE_OFF

During the DEVICE_OFF state the LM5177 is in shutdown. All internal logic and the DC/DC converter as well

as the gate driver are off. The internal POR- system monitors the EN threshold to start the initialization of the

reference system an device logic. The device current consumption is given by the shutdown current.

MAIN_LOGIC_ON

LM5177

SNVSBU4F – JUNE 2022 – REVISED JANUARY 2025

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LM5177DCPR Datasheet(PDF) 36 Page - Texas Instruments