Infineon CE2A265, CE2B765P2 Schematics

Datasheet, V2.0, 11 Jun 2004

CoolSET™-F2

ICE2A0565/165/265/365 ICE2B0565/165/265/365

ICE2A0565G

ICE2A0565Z ICE2A180Z/280Z

ICE2A765I/2B765I ICE2A765P2/2B765P2

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

Power Management & Supply

Never stop thinking.

CoolSET™-F2

Revision History: 2004-06-11 Datasheet

Previous Version:

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.

Edition 2004-06-11

Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 München

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 requirements 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 Technologies, 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 effectiveness 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™

CoolSET™-F2

Product Highlights

• Best in class in DIP8, DIP7, TO220 and DSO16/12 packages

• No heat-sink required for DIP8, DIP7 and DSO16/12

• Increased creepage distance for TO220, DIP7 and DSO16/12

• Isolated drain for TO220 packages

• Lowest standby power dissipation

• Enhanced protection functions with Auto Restart Mode

Features

• 650V/800V avalanche rugged CoolMOS™

• Only few external components required

• Input Vcc Undervoltage Lockout

• 67kHz/100kHz switching frequency

• Max duty cycle 72%

• Low Power Standby Mode to meet European Commission Requirements

• Thermal Shut Down with Auto Restart

• Overload and Open Loop Protection

• Overvoltage Protection during Auto Restart

• 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

Description

The second generation CoolSET™-F2 provides several special enhancements to satisfy the needs for low power 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 20kHz/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 Restart Mode which is controlled by the internal protection unit. By means of the internal precise peak current limitation, the dimension of the transformer and the secondary diode can be sized lower which leads to more cost effective for the overall system.

P-DIP-7-1

P-TO220-6-46

P-DIP-7-1

P-DIP-8-6

P-DIP-8-4, -6

P-TO220-6-47P-TO220-6-46

P-TO220-6-47

P-DSO-16/12

Typical Application

85 ... 270 VAC

SoftS

Soft Start

Feedback

Low Power

StandBy

Soft-Start Control

PWM-Controller

CoolSET™-F2

VCC

Power

Management

Protection Unit

Start-up

VCC

PWM Controller

Current Mode

Precise Low Tolerance

Peak Current Limitation

Snubber

Drain

CoolMOS™

Isense

GND

Feedback

Sense

Converter

DC Output

Version 2.0 3 11 Jun 2004

Ordering Codes

CoolSET™-F2

Type Ordering Code Package V

OSC

DSon

230VAC ±15%

85-265 VAC

ICE2A0565 Q67040-S4542 P-DIP-8-6 650V 100kHz 4.7Ω 23W 13W

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

ICE2B0565 Q67040-S4540 P-DIP-8-6 650V 67kHz 4.7Ω 23W 13W

ICE2B165 Q67040-S4489 P-DIP-8-6 650V 67kHz 3.0Ω 31W 18W

ICE2B265 Q67040-S4478 P-DIP-8-6 650V 67kHz 0.9Ω 52W 32W

ICE2B365 Q67040-S4490 P-DIP-8-6 650V 67kHz 0.45Ω 67W 45W

ICE2A0565Z Q67040-S4541 P-DIP-7-1 650V 100kHz 4.7Ω 23W 13W

ICE2A180Z Q67040-S4546 P-DIP-7-1 800V 100kHz 3.0Ω 29W 17W

ICE2A280Z Q67040-S4547 P-DIP-7-1 800V 100KHz 0.8Ω 50W 31W

typ @ T=25°C

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

Type Ordering Code Package V

OSC

DSon

230VAC ±15%

85-265 VAC

ICE2A0565G Q67040-S4656 P-DSO-16/12 650V 100kHz 4.7Ω 23W 13W

typ @ T=25°C

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

Type Ordering Code Package V

OSC

DSon

230VAC ±15%

85-265 VAC

ICE2A765I Q67040-S4609 P-TO-220-6-46 650V 100kHz 0.45Ω 240W 130W

ICE2B765I Q67040-S4607 P-TO-220-6-46 650V 67kHz 0.45Ω 240W 130W

ICE2A765P2 Q67040-S4610 P-TO-220-6-47 650V 100kHz 0.45Ω 240W 130W

ICE2B765P2 Q67040-S4608 P-TO-220-6-47 650V 67kHz 0.45Ω 240W 130W

typ @ T=25°C

Maximum practical continuous power in an open frame design at Ta=75°C, Tj=125°C and R

thCA

=2.7K/W

Version 2.0 4 11 Jun 2004

CoolSET™-F2

Table of Contents Page

1 Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1.1 Pin Configuration with P-DIP-8-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1.2 Pin Configuration with P-DIP-7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1.3 Pin Configuration with P-TO220-6-46/47 . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

1.4 Pin Configuration with P-DSO-16/12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

1.5 Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2 Representative Blockdiagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.1 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.2 Improved Current Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.2.1 PWM-OP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.2.2 PWM-Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.3 Soft-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3.4 Oscillator and Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.4.1 Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.4.2 Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.5 Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.5.1 Leading Edge Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.5.2 Propagation Delay Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.6 PWM-Latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.7 Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.8 Protection Unit (Auto Restart Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.8.1 Overload / Open Loop with Normal Load . . . . . . . . . . . . . . . . . . . . . . . .15

3.8.2 Overvoltage due to Open Loop with No Load . . . . . . . . . . . . . . . . . . . . .16

3.8.3 Thermal Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

4.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

4.2 Thermal Impedance (ICE2X765I and ICE2X765P2) . . . . . . . . . . . . . . . . . .19

4.3 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4.4 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

4.4.1 Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

4.4.2 Internal Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

4.4.3 Control Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

4.4.4 Protection Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

4.4.5 Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

4.4.6 CoolMOS™ Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5 Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .25

6 Layout Recommendation for C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

7 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Version 2.0 5 11 Jun 2004

Pin Configuration and Functionality

1 Pin Configuration and Functionality

CoolSET™-F2

1.1 Pin Configuration with P-DIP-8-6

Pin Symbol Function

1 SoftS Soft-Start

2 FB Feedback

3 Isense 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

at Tj = 25°C

650V

/800V2) CoolMOS™ Drain

650V

1.2 Pin Configuration with P-DIP-7-1

Pin Symbol Function

1 SoftS Soft-Start

2 FB Feedback

3 Isense Controller Current Sense Input,

CoolMOS™ Source Output

4 N.C. Not connected

5 Drain

7 VCC Controller Supply Voltage

8 GND Controller Ground

at Tj = 110°C

at Tj = 25°C

650V

/800V2) CoolMOS™ Drain

Package P-DIP-8-6

Sof tS

Is ens e

Dr ain

Figure 1 Pin Configuration P-DIP-8-6 (top view)

GND

VCCFB

N.C

Dr ain

Package P-DIP-7-1

Sof tS

Is en se

n.c.

Figure 2 Pin Configuration P-DIP-7-1 (top view)

GND

VCCFB

Dr ai n

Version 2.0 6 11 Jun 2004

CoolSET™-F2

Pin Configuration and Functionality

1.3 Pin Configuration with P-TO220-6-46/47

Pin Symbol Function

1Drain

3 Isense Controller Current Sense Input,

4 GND Controller Ground

5 VCC Controller Supply Voltage

6 SoftS Soft-Start

7 FB Feedback

at Tj = 110°C

650V

CoolMOS™ Drain

CoolMOS™ Source Output

1.4 Pin Configuration with P-DSO-16/12

Pin Symbol Function

1 N.C. Not Connected

2 SoftS Soft-Start

3 FB Feedback

4 Isense Controller Current Sense Input,

CoolMOS™ Source Output

5 Drain

6 Drain

7 Drain

8 Drain

9 N.C. Not Connected

10 N.C. Not Connected

11 VCC Controller Supply Voltage

12 GND Controller Ground

CoolMOS™ Drain

650V

CoolMOS™ Drain

650V

CoolMOS™ Drain

650V

Package P-TO220-6-46/47

234567

at Tj = 110°C

Isense

Package P-DSO-16/12

N.C

Drain

GND

VCCSoftS

N.C.

Drain

Isense

GND

VCC

SoftS

Figure 3 Pin Configuration P-TO220-6-46/47

Drain

Figure 4 Pin Configuration P-DSO-16/12 (top view)

(top view)

Version 2.0 7 11 Jun 2004

1.5 Pin Functionality

SoftS (Soft Start & Auto Restart Control)

This pin combines the function of Soft Start in case of Start Up and Auto Restart Mode and the controlling 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 Sense)

The Current Sense pin senses the voltage developed on the series resistor inserted in the source of the integrated CoolMOS™. When Isense reaches the internal threshold of the Current Limit Comparator, 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.

CoolSET™-F2

Pin Configuration and Functionality

Drain (Drain of integrated CoolMOS™)

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

VCC (Power supply)

This pin is the positive supply of the IC. The operating range is between 8.5V and 21V.

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.

Version 2.0 8 11 Jun 2004

2 Representative Blockdiagram

OUT

Converter

DC Output

CoolSET™-F2

Representative Blockdiagram

Sense

Isense

Optocoupler

PWM

Comparator

Error-Latch

0.3V

10k

220ns

Blanking

Leading Edge

csth

67kHz

100kHz

norm

20kHz

21.5kHz

standby

ICE2Bxxxx

Propagation-Delay

Compensation

Current Limiting

Comparator

Current-Limit

ICE2Axxxx

osc

x3.65

0.8V

norm

standby

Standby Unit

Improved Current Mode

PWM OP

Snubber

Drain

CoolMOS™

Gate

Driver

Soft-Start

Soft Start

PWM-Latch

Comparator

Spike

s 5

Blanking

0.72

Duty Cycle Max

norm

-f

max

Clock

Duty Cycle

5.3V

Voltage

Reset

4.8V

4.0V

Reference

standby

Reset

Power-Up

Oscillator

6.5V

Internal Bias

Power Management

13.5V

Lockout

Power-Down

Undervoltage

Line

VCC

8.5V

5.6V

4.8V

5.3V

6.5V

Soft-Start

>140°C

Thermal Shutdown

Protection Unit

GND

CoolSET™-F2

Start-up

85 ... 270 VAC

VCC

16.5V

4.0V

6.5V

Soft-Start

SoftS

Figure 5 Representative Blockdiagram

Version 2.0 9 11 Jun 2004

CoolSET™-F2

Functional Description

3 Functional Description

3.1 Power Management

Main Line (100V-380V)

Start-Up

Primary Winding

VCC

Power Managem ent

SoftS

Soft-Start

Undervoltage

Lockout

8.5V

Pow er-D ow n

Reset

Power-Up

Reset

13.5V

6.5V

So ft-Sta rt

Intern al

Bias

Voltage

Reference

RSQ

Error-Latch

So ft-Sta rt Co m pa rato r

Error-D ete ction

6.5V

5.3V

4.8V

4.0V

PWM-Latch

3.2 Improved Current Mode

Soft-Start Comparator

PWM-Latch

RSQ

Driver

PWM Comparator

0.8V

PWM OP

x3.65

Isense

Improved Current Mode

Figure 7 Current Mode

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

Amplified Current Signal

Figure 6 Power 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

0.8V

Driver

circuit and the voltage reference are switched on. After that the internal bandgap generates a reference voltage V

=6.5V to supply the internal circuits. To

REF

avoid uncontrolled ringing at switch-on a hysteresis is implemented which means that switch-off is only after active mode when Vcc falls below 8.5V.

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

When V

falls below the off-threshold V

VCC

=8.5V the

CCoff

internal reference is switched off and the Power Down 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.

Figure 8 Pulse Width Modulation

In case the amplified current sense signal exceeds the FB signal the on-time T

of the driver is finished by

resetting the PWM-Latch (see Figure 8). The primary current is sensed by the external series

resistor R

inserted in the source of the integrated

Sense

CoolMOS™. By means of Current Mode regulation, the

Version 2.0 10 11 Jun 2004

secondary output voltage is insensitive on line variations. Line variation changes the current waveform slope which controls the duty cycle.

The external R

allows an individual adjustment of

Sense

the maximum source current of the integrated CoolMOS™.

Soft-Start Comparator

CoolSET™-F2

Functional Description

OSC

max.

Duty Cycle

PWM Comparator

PWM-Latch

O scillator

0.3V C5

OSC

Gate Driver

0.8V

10k

Ω

x3.65

20pF

PWM OP

Voltage Ramp

Figure 9 Improved Current Mode

To improve the Current Mode during light load conditions the amplified current ramp of the PWM-OP is superimposed on a voltage ramp, which is built by the switch T low pass filter composed of R Figure 10). Every time the oscillator shuts down for max. duty cycle limitation the switch T2 is closed by

. When the oscillator triggers the Gate Driver T2 is

OSC

opened so that the voltage ramp can start. In case of light load the amplified current ramp is to

small to ensure a stable regulation. In that case the Voltage Ramp is a well defined signal for the comparison with the FB-signal. The duty cycle is then controlled by the slope of the Voltage Ramp.

By means of the Comparator C5, the Gate Driver is switched-off until the voltage ramp exceeds 0.3V. It allows the duty cycle to be reduced continuously till 0% by decreasing V

, the voltage source V1 and the 1st order

below that threshold.

and C1(see Figure 9,

Voltage Ramp

0.8V

0.3V

Gate Driver

Figure 10 Light Load Conditions

3.2.1 PWM-OP

The input of the PWM-OP is applied over the internal leading edge blanking to the external sense resistor R

connected to pin Isense. R

Sense

converts the

Sense

source current into a sense voltage. The sense voltage is amplified with a gain of 3.65 by PWM OP. The output of the PWM-OP is connected to the voltage source V1. The voltage ramp with the superimposed amplified current signal is fed into the positive inputs of the PWMComparator, C5 and the Soft-Start-Comparator.

3.2.2 PWM-Comparator

The PWM-Comparator compares the sensed current signal of the integrated CoolMOS signal V

(see Figure 11). VFB is created by an

external optocoupler or external transistor in combination with the internal pull-up resistor R provides the load information of the feedback circuitry. When the amplified current signal of the integrated CoolMOS™ exceeds the signal V Comparator switches off the Gate Driver.

with the feedback

the PWM-

and

Version 2.0 11 11 Jun 2004

+ 25 hidden pages