MAX8811 datasheet(6/11 Pages) MAXIM | High-Speed, Dual-Phase Driver with Integrated Boost Diodes

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Descripción

MAX8811

High-Speed, Dual-Phase Driver with Integrated Boost Diodes ( 11 Page)

MAXIM

6 page

High-Speed, Dual-Phase Driver

with Integrated Boost Diodes

_______________________________________________________________________________________

PWM

tpDLf

tpDHf

tfDL

tpDHr

tpDLr

trDL

trDH

tfDH

*WHEN RDLY IS USED, tpDHr BECOMES THE USER-PROGRAMMABLE TIME DELAY, tDLY. DRAWING IS NOT TO SCALE.

(tDLY)*

MAX8811

PHASE 2

PHASE 1

UVLO

LOGIC

VL1

VL2

PWM2

PWM1

BST1

DH1

LX1

VL1

DL1

PGND1

DHON

DHLO

DLON

DLLO

LX1 LOW

DETECT

BST2

DH2

LX2

VL2

DL2

PGND2

DHON

DHLO

DLON

DLLO

LX2 LOW

DETECT

Figure 1. Functional Diagram

Figure 2. Driver Timing Diagram

1 2 3 4 5 6 7 8 9 10 11

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