IR1175 データシートの表示（PDF） - International Rectifier

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IR1175

Synchronous Rectifier Driver

International Rectifier 

IR1175

ADVANCE INFORMATION

Lead Definitions and Assignments

Symbol Description

AVDD

Q1

Power - + 5 VDC to MOSFET drivers

Output - gate drive for Q1 power MOSFET

DTOUT1 Output - sets dead time for Q1 output - used with DTIN1

DTIN1 Input - sets dead time for Q1 - used with DTOUT1

RADV1 Output - sets lead time (advance) for Q1

VFLTR1 Output - PLL loop filter for Q1 output

RVCO1 Output - sets PLL center frequency for Q1 output

X1

Input - transformer input for Q1

VDD

Power - +5 Vdc for internal logic

UVSET Input - sets UVLO+ If this pin is pulled below 1.25VDC externally, then both Q1 and Q2

outputs will be at Vss (disabled)

RBIAS Output - connected to 249K +/- 1% resistor - sets operating current

AVSS Ground for logic supply (AVDD)

X2

Input - transformer input for Q2

RVCO2 Output - sets PLL center frequency for Q2 output

VFLTR2 Output - PLL loop filter for Q2

RADV2 Output - sets lead time (advance) for Q2

DTIN2 Input - sets dead time for Q2 - used with DTOUT2

DTOUT2 Output - sets dead time for Q2 - used with DTIN2

VSS

Ground for MOSFET driver supply (VDD)

Q2

Output - gate drive for Q2 power MOSFET

20 Lead SSOP

IR1175

4

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