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™

P o w e r M a n a g e m e n t & S u p p l y

N e v e r s t o p t h i n k i n g .

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

© Infineon Technologies AG 1999. All Rights Reserved.

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™

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

CoolSET™-F2
P-DIP-7-1
P-DIP-7-1
P-DIP-8-6
P-DIP-8-4, -6
PP--TO220TO220-6-46-6-46	P-TO220-6-47
	P-TO220-6-47
P-DSO-16/12

Features		Description
• 650V/800V avalanche rugged CoolMOS™		The second generation CoolSET™-F2 provides several
• Only few external components required		special enhancements to satisfy the needs for low power
• Input Vcc Undervoltage Lockout		standby and protection features. In standby mode
•	67kHz/100kHz switching frequency	frequency reduction is used to lower the power
• Max duty cycle 72%		consumption and support a stable output voltage in this
• Low Power Standby Mode to meet		mode. The frequency reduction is limited to 20kHz/21.5
	European Commission Requirements	kHz to avoid audible noise. In case of failure modes like
• Thermal Shut Down with Auto Restart		open loop, overvoltage or overload due to short circuit the
• Overload and Open Loop Protection		device switches in Auto Restart Mode which is controlled by
• Overvoltage Protection during Auto Restart		the internal protection unit. By means of the internal precise
• Adjustable Peak Current Limitation via		peak current limitation, the dimension of the transformer
	external resistor	and the secondary diode can be sized lower which leads to
•	Overall tolerance of Current Limiting < ±5%	more cost effective for the overall system.

•Internal Leading Edge Blanking

•User defined Soft Start Soft Switching for low EMI

		Typical Application
				+
		RStart-up	Snubber	Converter
85 ... 270 VAC				DC Output
				-
		CVCC	Drain
		VCC
				Feedback
Low Power		Power
StandBy	Management		CoolMOS™
SoftS		PWM Controller
Soft-Start Control
		Current Mode
CSoft Start
		Precise Low Tolerance		Isense
		Peak Current Limitation
FB				RSense
		Protection Unit
				GND
PWM-Controller
CoolSET™-F2
Feedback
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CoolSET™-F2

Ordering Codes

Type	Ordering Code	Package	VDS	FOSC	RDSon1)	230VAC ±15%2)	85-265 VAC2)
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

1)typ @ T=25°C

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

Type	Ordering Code	Package	VDS	FOSC	RDSon1)	230VAC ±15%2)	85-265 VAC2)
ICE2A0565G	Q67040-S4656	P-DSO-16/12	650V	100kHz	4.7Ω	23W	13W

1)typ @ T=25°C

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

Type	Ordering Code	Package	VDS	FOSC	RDSon1)	230VAC ±15%2)	85-265 VAC2)
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

1)typ @ T=25°C

2)Maximum practical continuous power in an open frame design at Ta=75°C, Tj=125°C and RthCA=2.7K/W

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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 C18 . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . .31
7	Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . .32

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CoolSET™-F2

Pin Configuration and Functionality

1 Pin Configuration and Functionality

1.1

Pin Configuration with P-DIP-8-6

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	Drain	650V1)/800V2) CoolMOS™ Drain
5	Drain	650V1)/800V2) CoolMOS™ Drain
6	N.C	Not connected
7	VCC	Controller Supply Voltage
8	GND	Controller Ground

1)at Tj = 110°C

2)at Tj = 25°C

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	650V1)/800V2) CoolMOS™ Drain
7	VCC	Controller Supply Voltage
8	GND	Controller Ground

1)at Tj = 110°C

2)at Tj = 25°C

	Package P-DIP-8-6
SoftS	1	8	GND
FB	2	7	VCC
Isense	3	6	N.C
Drain	4	5	Drain
Figure 1 Pin Configuration P-DIP-8-6 (top view)

	Package P-DIP-7-1
SoftS	1	8	GND
FB	2	7	VCC
Isense	3
n.c.	4	5	Drain
Figure 2 Pin Configuration P-DIP-7-1 (top view)

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CoolSET™-F2

Pin Configuration and Functionality

1.3 Pin Configuration with P-TO220-6-46/47 1.4 Pin Configuration with P-DSO-16/12

Pin	Symbol	Function
1	Drain	650V1) CoolMOS™ Drain
3	Isense	Controller Current Sense Input,
		CoolMOS™ Source Output
4	GND	Controller Ground
5	VCC	Controller Supply Voltage
6	SoftS	Soft-Start
7	FB	Feedback

1)at Tj = 110°C

Package P-TO220-6-46/47

1 2 3 4 5 6 7

Drain

Isense

GND

VCC

SoftS

FB

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	650V1)	CoolMOS™ Drain
6	Drain	650V1)	CoolMOS™ Drain
7	Drain	650V1)	CoolMOS™ Drain
8	Drain	650V1)	CoolMOS™ Drain
9	N.C.	Not Connected
10	N.C.	Not Connected
11	VCC	Controller Supply Voltage
12	GND	Controller Ground

1)at Tj = 110°C

Package P-DSO-16/12

N.C	1	12	GND
SoftS	2	11	VCC
FB	3	10	N.C.
Isense	4	9	N.C.
Drain	5	8	Drain
Drain	6	7	Drain

Figure 3 Pin Configuration P-TO220-6-46/47	Figure 4 Pin Configuration P-DSO-16/12 (top view)
(top view)

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CoolSET™-F2

Pin Configuration and Functionality

1.5Pin 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.

Drain (Drain of integrated CoolMOS™)

Pin Drain is the connection to the Drain of the internal

CoolMOSTM.

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.

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Version

5 Figure

2

2

BlockdiagramRepresentative

BlockdiagramRepresentative

9 0.

FB

Current-Limit

10k

RSense

+

Converter

RStart-up

CLine

Snubber

DC Output

85 ... 270 VAC

VOUT

-

CVCC

Drain

VCC

Power Management

Undervoltage

Internal Bias

Lockout

C1

13.5V

16.5V

8.5V

Duty Cycle Max

Power-Down

6.5V

Oscillator

0.72

Reset

Voltage

5.3V

6.5V

4.8V

Duty Cycle

4.0V

Reference

C2

4.0V

max

G1

Power-Up

RSoft-Start

Reset

Clock

fstandby-fnorm

SoftS

Soft Start

Soft-Start

PWM-Latch

CoolMOS™

Comparator

S

Q

5.6V

CSoft-Start

C4

Spike

S

Q

R

Q

5.3V

G3

Blanking

Gate

G2

G4

T1

6.5V

5 s

Driver

4.8V

C3

R

Q

PWM

RFB

Error-Latch

Comparator

0.3V

C5

Thermal Shutdown

fosc

Comparator

Leading Edge

Vcsth

Blanking

fnorm

D1

Isense

Tj

>140°C

fstandby

0.8V

220ns

UFB

BlockdiagramRepresentative

2004Jun11

F2-CoolSET™

Protection Unit

Standby Unit

Propagation-Delay

x3.65

Compensation

PWM OP

Improved Current Mode

Current Limiting

Optocoupler

CoolSET™-F2

GND

ICE2Axxxx

ICE2Bxxxx

fnorm

100kHz

67kHz

fstandby

21.5kHz

20kHz

CoolSET™-F2

Functional Description

3

Functional Description 3.2

Improved Current Mode

3.1Power Management

		M ain Line (100V -380V)
		R S tart-U p
			Prim ary W inding
		C VC C
	V C C
	Power Management
	U ndervoltage		Internal
	Lockout		B ias
	13.5V
	8.5V
	Pow er-D ow n		6.5V
	R eset		5.3V
			V oltage
			4.8V
			R eference
	P ow er-U p		4.0V
	R eset
		R	Q
			P W M -Latch
	6.5V	S	Q
	R S oft-S tart
		E rror-Latch
	S oftS
			Soft-Start Com parator
	T 1		E rror-D etection
	C S oft-Start

Figure 6 Power Management

The Undervoltage Lockout monitors the external supply voltage VVCC. In case the IC is inactive the current consumption is max. 55µA. When the SMPS is

plugged to the main line the current through RStart-up charges the external Capacitor CVCC. When VVCC

exceeds the on-threshold VCCon=13.5V the internal bias circuit and the voltage reference are switched on. After that the internal bandgap generates a reference voltage VREF=6.5V to supply the internal circuits. To 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 VVCC falls below the off-threshold VCCoff=8.5V the internal reference is switched off and the Power Down

reset let T1 discharging the soft-start capacitor CSoft-Start at pin SoftS. Thus it is ensured that at every switch-on

the voltage ramp at pin SoftS starts at zero.

Soft-Start C om parator

FB	PW M -Latch
	R	Q
		D river
PW M C om parator
	S	Q
0.8V
PW M O P
x3.65	Isense

Im proved

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
FB
0.8V
Driver	t
Ton
	t

Figure 8 Pulse Width Modulation

In case the amplified current sense signal exceeds the FB signal the on-time Ton of the driver is finished by resetting the PWM-Latch (see Figure 8).

The primary current is sensed by the external series resistor RSense inserted in the source of the integrated CoolMOS™. By means of Current Mode regulation, the

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CoolSET™-F2

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

The external RSense allows an individual adjustment of the maximum source current of the integrated CoolMOS™.

Soft-Start C om parator

FB

PW M C om parator

PW M -Latch

0.3V

O scillator

C 5

V O S C

G ate D river

		10kΩ	0.8V
				x3.65
T	2	R 1	V 1	PW M O P
	C 1	20pF

Voltage Ramp

Figure 9 Improved Current Mode

Functional Description

VOSC
max.
Duty Cycle
Voltage Ramp	t
0.8V
FB
0.3V
Gate Driver	t
	t

Figure 10 Light Load Conditions

3.2.1PWM-OP

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 T2, the voltage source V1 and the 1st order low pass filter composed of R1 and C1(see Figure 9, Figure 10). Every time the oscillator shuts down for max. duty cycle limitation the switch T2 is closed by VOSC. When the oscillator triggers the Gate Driver T2 is 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 VFB below that threshold.

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

RSense connected to pin Isense. RSense converts the 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.

3.2.2PWM-Comparator

The PWM-Comparator compares the sensed current signal of the integrated CoolMOSTM with the feedback signal VFB (see Figure 11). VFB is created by an external optocoupler or external transistor in combination with the internal pull-up resistor RFB and provides the load information of the feedback circuitry. When the amplified current signal of the integrated CoolMOS™ exceeds the signal VFB the PWMComparator switches off the Gate Driver.

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