Infineon CoolSET-F3R ICE3BRXX65JZ series, CoolSET-F3R ICE3BRXX65JG series Design Manual

Never stop thinking.

Power Management & Supply

ICE3BRxx65J(Z)(G)

CoolSET®-F3R (DIP-8, DIP-7 & DSO-16/12)
new Jitter version Design Guide

Application Note, V 2.2, June 2010

Edition 2010-06-20
Published by Infineon Technologies Asia Pacific,

8 Kallang Sector,
349282 Singapore, Singapore

© Infineon Technologies AP 2008.
All Rights Reserved.

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regarding circuits, descriptions and charts stated herein.

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ICE3BRXX65J(Z)(G)

Revision History: 2010-06-20 V2.2

Previous Version: V2.1a

Page Subjects (major changes since last revision)

Add ICE3BR4765JZ

CoolSET®-F3R (DIP-8, DIP-7 & DSO-16/12) new Jitter version Design Guide:
License to Infineon Technologies Asia Pacific Pte Ltd AN-PS0025

Kyaw Zin Min
Kok Siu Kam Eric

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ICE3BRXX65J(Z)(G)

Table of Contents Page

Application Note 4 2010-06-20

1 Introduction ...................................................................................................................................5

2 List of Features .............................................................................................................................5

3 Package..........................................................................................................................................5

4 Block Diagram ...............................................................................................................................7

5 Typical Application Circuit...........................................................................................................8

6 Functional description and component design .........................................................................9

6.1 Startup time .....................................................................................................................................9

6.1.1 Vcc capacitor...................................................................................................................................9

6.2 Soft Start .......................................................................................................................................10

6.3 Low standby power - Active Burst Mode.......................................................................................10

6.3.1 Entering Active Burst Mode...........................................................................................................10

6.3.2 Working in Active Burst Mode .......................................................................................................11

6.3.3 Leaving Active Burst Mode ...........................................................................................................12

6.3.4 Minimum VCC supply voltage during burst mode...........................................................................13

6.4 Low EMI noise...............................................................................................................................13

6.4.1 Frequency jittering.........................................................................................................................13

6.4.2 Soft gate drive ...............................................................................................................................13

6.4.3 Other suggestions to solve EMI issue...........................................................................................14

6.5 Tight maximum power control - Propagation delay compensation ...............................................14

6.6 Protection Features .......................................................................................................................15

6.6.1 Auto Restart Protection Mode .......................................................................................................15

6.6.2 Blanking Time for over load protection .........................................................................................16

6.6.3 User defined protection by external protection enable pin............................................................17

7 Input power curve .......................................................................................................................17

8 Layout Recommendation ...........................................................................................................20

9 Product portfolio of CoolSET®-F3R (DIP-8, DIP-7 & DSO-16/12) new Jitter version ............20

10 Useful formula & external component design .........................................................................21

11 References ...................................................................................................................................22

ICE3BRXX65J(Z)(G)

Application Note 5 2010-06-20

1 Introduction

The CoolSET®-F3R, ICE3BRxx65J(Z)(G) is the latest development of the CoolSET®-F3. It is a PWM
controller with power MOSFET and startup cell in a DIP or DSO package. The switching frequency is running
at 65 KHz and it targets for DVD player, set-top box, portable game console, auxiliary power supply, etc.

The ICE3BRxx65J(Z)(G) adopts the BiCMOS technology and provides a wider Vcc operating range up to
25V. It inherits the proven good features of CoolSET

®

-F3 such as the active burst mode achieving the lowest
standby power, the propagation delay compensation making the most precise current limit control in wide
input voltage range, etc. In addition, it also adds on some useful features such as built-in soft start time, built­in basic with extendable blanking time for over load protection and built-in switching frequency modulation (
frequency jittering ), external auto-restart enable, etc.

2 List of Features

3 Package

The package for F3R ICE3BRXX65J Jitter mode product is DIP-8.

Figure 1 Pin configuration –

ICE3BRxx65J

1

at Tj=110°C

650V avalanche rugged CoolSET® with built-in Startup Cell

Active Burst Mode for lowest Standby Power

Fast load jump response in Active Burst Mode

65 kHz internally fixed switching frequency

Auto Restart Protection Mode for Over-load, Open Loop, Vcc Undervoltage, Over temperature & Vcc
Over-voltage

Built-in Soft Start

Built-in blanking window with extendable blanking time for short duration high current

External auto-restart enable pin

Max Duty Cycle 75%

Overall tolerance of Current Limiting < ±5%

Internal PWM Leading Edge Blanking

BiCMOS technology provides wide VCC range

Built-in Frequency jitter feature and soft driving for low EMI

Pin Name Description

1 BA extended Blanking & Auto-restart enable

2 FB FeedBack

3 CS

Current Sense / 650V

1

CoolMOS® Source

4 Drain

650V

1

CoolMOS® Drain

5 Drain

650V

1

CoolMOS® Drain

6 n.c. Not Connected

7 VCC Controller Supply Voltage

8 GND Controller Ground

1

6

7

8

4

3

2

5

GND BA

FB

CS

VCC

n.c

Drain

Drain

ICE3BRXX65J(Z)(G)

Application Note 6 2010-06-20

The package for F3R ICE3BRXX65JZ Jitter mode product is DIP-7.

Figure 2 Pin configuration – ICE3BRxx65JZ

The package for F3R ICE3BRXX65JG Jitter mode product is DSO-16/12.

Figure 3 Pin configuration – ICE3BRxx65JG

1

at Tj=110°C

Pin Name Description

1 BA extended Blanking & Auto-restart enable

2 FB FeedBack

3 CS

Current Sense / 650V

1

CoolMOS® Source

4 n.c. Not connected

5 Drain

650V

1

CoolMOS® Drain

6 - No Pin

7 VCC Controller Supply Voltage

8 GND Controller Ground

Pin Name Description

1 N.C. Not Connected

2 BA extended Blanking & Auto-restart enable

3 FB FeedBack

4 CS

Current Sense / 650V

1

CoolMOS® Source

5 Drain

650V

1

CoolMOS® Drain

6 Drain

650V

1

CoolMOS® Drain

7 Drain

650V

1

CoolMOS® Drain

8 Drain

650V

1

CoolMOS® Drain

9 N.C. Not Connected

10 N.C. Not Connected

11 VCC Controller Supply Voltage

12 GND Controller Ground

ICE3BRXX65J(Z)(G)

Application Note 7 2010-06-20

4 Block Diagram

Figure 4 Block Diagram of ICE3BRXX65J(Z)(G)