FEB219

FEB219 Datasheet

FEB219-001 User’s Guide FPP06R001

Part	Datasheet
FEB219	FEB219 (pdf)

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FEB219-001 User’s Guide FPP06R001 Evaluation Board Featured Fairchild Product FPP06R001 2008 Fairchild Semiconductor Corporation Table of Contents 3 Features 3 Schematics 4 PCB 5 List of 7 Test Setup 8 Circuit Operation 9 2008 Fairchild Semiconductor Corporation The following user guide supports the demonstration kit for the FPP06R001. It should be used in conjunction with the FPP06R001 datasheet as well as Fairchild application notes and technical support team. Please visit Fairchild’s website at Introduction The synchronous rectifiers are widely accepted for high efficiency in power conversion applications. Because they utilize power MOSFETs versus Schottky diodes, low RDS ON is a very significant parameter for synchronous rectification switches. An integrated switch has been introduced as optimized solution for this application. This guide describes benefits of an integrated solution and provides necessary information to evaluate it. - Power SPM, integrated power MOSFETs and high current gate driver in a single transfer molded package - 75V, 3.6mOhm typical power switches and 2.5A capability gate driver IC - Forward topology with synchronous rectifier operates at 100kHz - 380V input - 12V output at 20A - efficiency at full load The Power SPM demo board has designed to demonstrate FPP06R001 functionality and how it can be implemented. A single-ended forward topology with RCD clamp is used as primary DC-DC converter. A switch-mode power supply controller, KA7553A controls the forward converter. The FPP06R001 serves as secondary-side synchronous rectifier. NOR gates are used for creating the driving signals for the FPP06R001, and two pulse transformers pass the signals to secondary-side. By adjusting resistance of R15, dead time between freewheeling switch turn-off and forwarding switch turn-on can be varied. Initial value of R15 is set to 1.8kOhm. Also R23 determines dead time between forwarding switch turn-off and freewheeling switch turn-on. Initial value of R23 is 100kOhm. 2008 Fairchild Semiconductor Corporation Schematics INPUT1 1 2 3 4 C2 C3 630V 104 150uF/450V F1 6.3A C1 1k 103 1W 220k R1 PWMOUT GATE1 RGON RGP10 10 RGOFF FQA9N90C PQ3535 6.8k 1.5M R7 R8 6.8k 1.5M RSENSE R3 10k MMBT2907A Q2 DCILIM Q3 FQD1N60 D2 LL4148 D5 FLZ12VC Q4 MMBT2222A

PDF Datasheet Preview

FEB219-001 User’s Guide FPP06R001

Evaluation Board

Featured Fairchild Product FPP06R001
2008 Fairchild Semiconductor Corporation

Table of Contents
3 Features 3 Schematics 4 PCB 5 List of 7 Test Setup 8 Circuit Operation 9
2008 Fairchild Semiconductor Corporation

The following user guide supports the demonstration kit for the FPP06R001. It should be used in conjunction with the FPP06R001 datasheet as well as Fairchild application notes and technical support team. Please visit Fairchild’s website at

Introduction

The synchronous rectifiers are widely accepted for high efficiency in power conversion applications. Because they utilize power MOSFETs versus Schottky diodes, low RDS ON is a very significant parameter for synchronous rectification switches. An integrated switch has been introduced as optimized solution for this application. This guide describes benefits of an integrated solution and provides necessary information to evaluate it.
- Power SPM, integrated power MOSFETs and high current gate driver in a single transfer molded package
- 75V, 3.6mOhm typical power switches and 2.5A capability gate driver IC - Forward topology with synchronous rectifier operates at 100kHz - 380V input - 12V output at 20A
- efficiency at full load

The Power SPM demo board has designed to demonstrate FPP06R001 functionality and how it can be implemented. A single-ended forward topology with RCD clamp is used as primary DC-DC converter. A switch-mode power supply controller, KA7553A controls the forward converter. The FPP06R001 serves as secondary-side synchronous rectifier. NOR gates are used for creating the driving signals for the FPP06R001, and two pulse transformers pass the signals to secondary-side. By adjusting resistance of R15, dead time between freewheeling switch turn-off and forwarding switch turn-on can be varied. Initial value of R15 is set to 1.8kOhm. Also R23 determines dead time between forwarding switch turn-off and freewheeling switch turn-on. Initial value of R23 is 100kOhm.
2008 Fairchild Semiconductor Corporation

Schematics

INPUT1
1 2 3 4

C2 C3
630V 104
150uF/450V

F1 6.3A

C1 1k 103
1W 220k R1

PWMOUT

GATE1 RGON

RGP10
10 RGOFF

FQA9N90C

PQ3535
6.8k
1.5M

R7 R8
6.8k 1.5M

RSENSE

R3 10k MMBT2907A Q2

DCILIM

Q3 FQD1N60

D2 LL4148

D5 FLZ12VC

Q4 MMBT2222A

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Datasheet ID: FEB219 514471