INFINEON ICE2A165, ICE2A265, ICE2A365, ICE2A180, ICE2A280 User Manual

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Datasheet, Version 3.0, September 2001

CoolSET™-F2

ICE2A165/265/365 ICE2A180/280

Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS™

Power Management & Supply

Never stop thinking.

CoolSET™-F2 Revision History: 2001-09-19 Datasheet

Previous Version: First One Page Subjects (major changes since last revision)

For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or the Infineon Technologies Companies and Representatives worldwide: see our webpage at http:// www.infineon.com

CoolMOS™, CoolSET™ are trademarks of Infineon Technologies AG.

We Listen to Your Comments

Any information within th is document that you feel is wrong, unclear or missing at all? Your feedback will help us to continuously improve the quality of this document. Please send your proposal (inc luding a reference to this document) to :

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Edition 2001-09-19 Published by Infineon Technologies AG,

St.-Martin-Strasse 53, D-81541 München

All Rights Reserv ed.

Attention please!

The information herein is given to describe certain components and shall not be considered as warranted characteristics.

Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding

circuits, descriptions and charts stated herein. Infineon Technologies is an approved CECC manufacturer.

Information

For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office in Germany or our Infineon Technologies Representatives worldwide (see address list).

Warnings

Due to technical requirem ent s components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office.

Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon T echnologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiv eness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

Off-Line SMPS Current Mode Controller with integrated 650V/800V CoolMOS™

Product Highlights

• Best of Class in DIP8 Package

• No Heatsink required

• Lowest Standby Power Dissipation

• Enhanced Protection Functions all with Auto Restart Mode

CoolSET™-F2

ICE2A165/265/365 ICE2A180/280

P-DIP-8-6

Features

• 650V/800V Avalanche Rugged CoolMOS™

• Only few external Components required

• Input Undervoltage Lockout

• 100kHz Switching Frequency

• Max Duty Cycle 72%

• Low Power Standby Mode to meet European Commission Requirements

• Thermal Shut Down with Auto Restart

• Ove r l oad and Open Loop Prot ec tion

• Overvoltage Protection during Auto Rest art

• Adjustable Peak Current Limitation via External Resistor

• Overall Tolerance of Current Limiting < ±5%

• Internal Leading Edge Blanking

• User defined Soft Start

• Soft Switching for Low EMI

Typical Application

VCC

Power

Precise Low Tolerance

Peak Current Limitation

Protection Unit

Start-up

PWM Controller

Current Mode

85 ... 270 VAC

SoftS

Soft Start

Feedback

Low Power

StandBy

Soft-Start Control

PWM-Controller

CoolSET™-F2

Management

Description

The second generation CO OLSET™-F2 provides several special enhancements t o satisfy the needs for low po wer standby and protection features. In standby mode frequency reduction is used to lower the power consumption and support a stable output voltage in this mode. The frequency reduction is limited to 21.5 kHz to avoid audible noise. In case of failure modes like open loop, overvoltage or overload due to short circuit the device switches in Auto Rest art Mode which is control led by the internal protection u nit. By means of the internal precise peak current limitation the dimension of the transformer and the secondary diode can be lower which leads to more cost efficiency.

Snubber

VCC

Drain

CoolMOS™

Isense

GND

Feedback

Sense

Converter

DC Output

Type Ordering Code Package U

OSC

DSon

230VAC ±15%

85-265 VAC

ICE2A165 Q67040-S4426 P-DIP-8-6 650V 100kHz 3.0Ω 31W 18W ICE2A265 Q67040-S4414 P-DIP-8-6 650V 100kHz 0.9Ω 52W 32W ICE2A365 Q67040-S4415 P-DIP-8-6 650V 100kHz 0.45Ω 67W 45W ICE2A180 ES Samples available P-DIP-8-6 800V 100kHz 3.0Ω 31W 18W ICE2A280 Q67040-S4416 P-DIP-8-6 800V 100kHz 0.8Ω 54W 34W

typ @ T=25°C

Maximum power rating at Ta=75°C, Tj=125°C and with copper area on PCB = 6cm²,

Datasheet 3 September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Table of Contents Page

1 Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.2 Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2 Representative Blockdiagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

3.1 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

3.2 Improved Current Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

3.2.1 PWM-OP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

3.2.2 PWM-Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

3.3 Soft-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.4 Oscillator and Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.4.1 Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.4.2 Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.5 Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.5.1 Leading Edge Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.5.2 Propagation Delay Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.6 PWM-Latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.7 Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.8 Protection Unit (Auto Restart Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3.8.1 Overload & Open loop with normal load . . . . . . . . . . . . . . . . . . . . . . . . .12

3.8.2 Overvoltage due to open loop with no load . . . . . . . . . . . . . . . . . . . . . . .13

3.8.3 Thermal Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4.2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.3 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.3.1 Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.3.2 Internal Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.3.3 Control Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.3.4 Protection Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.3.5 Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.3.6 CoolMOS™ Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

5 Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .18

6 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Datasheet 4 September 2001

Pin Configuration and Functionality

1 Pin Configuration and Functionality

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

1.1 Pin Configuration

Pin Symbol Function

1 SoftS Soft-Start 2 FB Feedback 3 Isen s e Controller Current Sense Input,

CoolMOS™ Source Output

4Drain 5Drain 6 N.C Not connected

7 VCC Controller Supply Voltage 8 GND Controller Ground

at Tj = 110°C

/800V CoolMOS™ Drain

650V

/800V CoolMOS™ Drain

650V

Package P-DIP-8-6

1.2 Pin Functionality

SoftS (Soft Start & Auto Restart Control)

This pin combines the function of Soft Start i n case of Start Up and Auto Restart Mod e and the con troll ing of the Auto Restart Mode in case of an error detection.

FB (Feedback)

The information about the regulation is provided by the FB Pin to the internal Protection Unit and to the internal PWM-Comparator to control the duty cycle.

Isense (Current Sens e)

The Current Sense pin sense s the voltage develop ed on the series resistor inserted in the source of the integrated CoolMOS™. When Isense reaches the internal threshold of th e Current Limi t Compara tor , the Driver output is disabled. By this means the Over Current Detection is realized.

Furthermore the current information is provided for the PWM-Comparator to realize the Current Mode.

Drain (Drain of integrated CoolMOS™)

Pin Drain is the connection to the Drain of the internal CoolMOS

SoftS

Isense

Drain

Figure 1 Pin Configuration (top view)

GND

VCCFB

N.C

Drain

VCC (Power supply)

This pin is the positiv su pply of the IC. The opera ting range is between 8.5V and 21 V.

To provide overvoltage protection the driver gets disabled when the voltage becomes higher than 16.5V during Start Up Phase.

GND (Ground)

This pin is the ground of the primary side of the SMPS.

Datasheet 5 September 2001

2 Representative Blockdi agram

OUT

Converter

DC Output

Sense

Snubber

Drain

Ω

10k

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Representative Blockdiagram

Optocoupler

Isense

CoolMOS™

Gate

Driver

21.5-100kHz

Soft-Start

PWM-Latch

Soft-Start

Comparator

Soft Start

SoftS

5.6V

Spike

Soft-Start

Blanking

5.3VC34.8V

PWM

Q R

6.5V

0.72

max

Clock

Duty Cycle

Oscillator

6.5V

4.8V

5.3V

4.0V

Bias

Internal

Voltage

Reference

13.5V

Power Management

Line

VCC

Start-up

VCC

Lockout

8.5V

Undervoltage

16.5V

Reset

Power-Down

6.5V

4.0V

Reset

Power-Up

Comparator

0.3V

Error-Latch

Blanking

Leading Edge

Comparator

Current-Limit

osc

Thermal

200ns

csth

0.8V

21.5kHz

100kHz

Shutdown

>140°C

Compensation

Propagation-Delay

x3.65

PWM OP

Standby Unit

Protection Unit

Current Limiting

Improved Current Mode

GND

CoolSET™-F2

85 ... 270 VAC

Figure 2 Represent a tive Blockdia gr a m

Datasheet 6 September 2001

3 Functional Description

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Functional Description

3.1 Power Management

Main Line (100V-380V)

Start-Up

VCC

Power Management

So ftS

Soft-S ta rt

Undervoltage

Lockout

8.5V

Pow er-D ow n

Reset

Pow er-U p

Reset

13.5V

6.5V

Soft-S tart

Internal

Bias

Voltage

Reference

RSQ

Error-Latch

So ft-Start C om para to r

Error-D etec tion

Primary Winding

6.5V

5.3V

4.8V

4.0V

PWM-Latch

3.2 Improved Current M ode

Soft-Start Com parator

PW M-Latch

RSQ

Driver

PW M C om parator

0.8V

PW M O P

x3.65

Isense

Improved Current Mode

Figure 4 Current Mode

Current Mode means that the d uty cycle is controlled by the slope of the primary current. This is done by comparison the FB signal with the amplified current sense signal.

Figure 3 P ower Management

The Undervoltage Lockout monitors the external supply voltage V

. In case the IC is inactive the

VCC

current consumption is max. 55µA. When the SMPS is plugged to the main line the current through R charges the external Capacitor C exceeds the on -threshold V

=13.5V the internal bias

CCon

. When V

VCC

Start-up

VCC

circuit and the voltage reference are switched on. After it the internal ba ndgap generates a refere nce voltage V

=6.5V to supply the internal circuits. To avoid

REF

uncontrolled ringing at switch-on a hysteresis is implemented which mea ns that switch-off is only af ter active mode when Vcc falls below 8.5V.

In case of switch-on a Power Up Reset is done by reseting the internal error-latch in the protection unit.

When V

falls below the off-threshold V

VCC

CCoff

=8.5V the internal reference is sw itched off and t he Powe r Dow n reset let T1 discharging the soft-start capacitor C

Soft-Start

at pin SoftS. Thus it is ensured that at every switch-on the voltage ramp at pin SoftS starts at zero.

Am plified Current Signal

0.8V Driver

Figure 5 Pulse Width Modula ti on

In case the amplified current sense signal exceeds the FB signal the on-time T reseting the PWM-Latch (see Figure 5).

of the driver is finished by

Datasheet 7 September 2001

+ 16 hidden pages