ADM6820ARJZ-REEL7 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

ADM6820ARJZ-REEL7

FET Drive Simple Sequencers®

Analog Devices 

ADM6819/ADM6820

TIMING DIAGRAMS

VCC1

VCC2

R3

R4

VCC1

VCC2

R1

SETV

UVLO

R2

0.618V

CHARGE

PUMP

LOGIC

VFET

FET

DRIVER

Q1

GATE

VCC1

VCC2OUT

ADM6819

GND

0.618V

EN

Figure 2. ADM6819 Solution for Validating Two Supplies Before Sequencing

VSETV

0.618V

tON

VCC2 + 5.5V (typ)

90%

VGATE

10%

tDELAY

(ADM6819 = 300ms,

ADM6820 = ADJ)

tOFF

10%

Figure 3. ADM6819/ADM6820 Timing Diagram Using SETV for Sequencing

VSETV

VEN

0.618V

0.618V

tON

VCC2 + 5.5V (typ)

90%

VGATE

10%

tDELAY

(300ms)

tOFF

10%

Figure 4. ADM6819 Timing Diagram Using EN and SETV for Sequencing

Rev. 0 | Page 4 of 12

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