ICE2A265_技术文档

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

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

CoolSET™-F2

Revision History:

2001-09-19

Datasheet

Previous Version:

First One

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Subjects (major changes since last revision)

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www.infineon.com

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

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Edition 2001-09-19

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 char-

acteristics.

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.

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For further information on technology, delivery terms and conditions and prices please contact your nearest Infin-

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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

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be endangered.

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

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

P-DIP-8-6

Description

Features

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 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 lower which leads to more cost

efficiency.

•

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

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

Typical Application

+

Converter

Snubber

R_Start-up

DC Output

85 ... 270 VAC

-

C_VCC

VCC

Drain

Feedback

Low Power

StandBy

Power

Management

CoolMOS™

SoftS

C_{Soft Start}

PWM Controller

Current Mode

Soft-Start Control

Isense

GND

Precise Low Tolerance

Peak Current Limitation

R_Sense

FB

Protection Unit

PWM-Controller

CoolSET™-F2

Feedback

230VAC ±15%²⁾85-265 VAC²⁾

1)

Type

Ordering Code

Package

U_DS

F_OSC

R_DSon

ICE2A165 Q67040-S4426

ICE2A265 Q67040-S4414

ICE2A365 Q67040-S4415

P-DIP-8-6 650V 100kHz

3.0Ω

0.9Ω

0.45Ω

3.0Ω

0.8Ω

31W

52W

67W

31W

54W

18W

32W

45W

18W

34W

ICE2A180 ES Samples available P-DIP-8-6 800V 100kHz

ICE2A280 Q67040-S4416

P-DIP-8-6 800V 100kHz

1)

typ @ T=25°C

2)

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

1.1

1.2

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

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

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

2

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

3

3.1

3.2

3.2.1

3.2.2

3.3

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

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

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

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

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

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

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

Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

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

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

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

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

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

Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

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

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

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

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

3.4

3.4.1

3.4.2

3.5

3.5.1

3.5.2

3.6

3.7

3.8

3.8.1

3.8.2

3.8.3

4

4.1

4.2

4.3

4.3.1

4.3.2

4.3.3

4.3.4

4.3.5

4.3.6

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

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

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

Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

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

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

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

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

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

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

5

6

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

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

Datasheet

4

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Pin Configuration and Functionality

1

Pin Configuration and Functionality

1.1

Pin Configuration

1.2

Pin Functionality

SoftS (Soft Start & Auto Restart Control)

Symbol Function

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.

1

2

3

SoftS

FB

Soft-Start

Feedback

FB (Feedback)

Isense Controller Current Sense Input,

CoolMOS™ Source Output

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.

650V¹⁾/800V CoolMOS™ Drain

Drain

4

5

650V²⁾/800V CoolMOS™ Drain

Drain

Isense (Current Sense)

6

7

8

N.C

VCC

GND

Not connected

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.

Controller Supply Voltage

Controller Ground

1)

2)

at T_j= 110°C

Furthermore the current information is provided for the

PWM-Comparator to realize the Current Mode.

Drain (Drain of integrated CoolMOS™)

Package P-DIP-8-6

Pin Drain is the connection to the Drain of the internal

CoolMOS^TM

.

SoftS

FB

GND

VCC

N.C

1

2

3

4

8

7

6

5

VCC (Power supply)

This pin is the positiv 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.

Isense

Drain

GND (Ground)

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

Drain

Figure 1

Pin Configuration (top view)

Datasheet

5

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Representative Blockdiagram

2

Representative Blockdiagram

Figure 2

Representative Blockdiagram

Datasheet

6

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Functional Description

3

Functional Description

3.1

Power Management

3.2

Improved Current Mode

M ain Line (100V-380V)

R_Start-Up

Soft-Start Com parator

Prim ary W inding

PW M -Latch

FB

C _VCC

R

Q

VCC

Driver

PW M Com parator

Power Management

S

Q

Undervoltage

Internal

Lockout

Bias

13.5V

0.8V

8.5V

PW M O P

6.5V

Power-Down

Reset

5.3V

4.8V

4.0V

Voltage

x3.65

Reference

Isense

Power-Up

Reset

Improved

Current Mode

R

S

Q

PW M-Latch

Figure 4

Current Mode

6.5V

R _Soft-Start

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.

Error-Latch

SoftS

Soft-Start C om parator

Error-Detection

T1

C_Soft-Start

Am plified Current Signal

FB

Figure 3

Power Management

The Undervoltage Lockout monitors the external

supply voltage V_VCC. In case the IC is inactive the

current consumption is max. 55µA. When the SMPS is

plugged to the main line the current through R_Start-up

charges the external Capacitor C_VCC. When V_VCC

exceeds the on-threshold V_CCon=13.5V the internal bias

circuit and the voltage reference are switched on. After

it the internal bandgap generates a reference voltage

0.8V

Driver

t

V

_REF=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.

T_on

In case of switch-on a Power Up Reset is done by

reseting the internal error-latch in the protection unit.

When V_VCCfalls below the off-threshold V_CCoff=8.5V the

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 5

Pulse Width Modulation

In case the amplified current sense signal exceeds the

FB signal the on-time T_onof the driver is finished by

reseting the PWM-Latch (see Figure 5).

Datasheet

7

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Functional Description

The primary current is sensed by the external series

resistor R_Senseinserted in the source of the integrated

CoolMOS™. By means of Current Mode the regulation

of the secondary voltage is insensitive on line

variations. Line variation causes varition of the

increasing current slope which controls the duty cycle.

The external R_Senseallows an individual adjustment of

the maximum source current of the integrated

CoolMOS™.

V_{O SC}

m ax.

Duty Cycle

Voltage Ram p

t

Soft-Start Com parator

PW M Com parator

FB

0.8V

FB

0.3V

PW M -Latch

Gate Driver

t

0.3V

Oscillator

C5

Gate Driver

V_{O SC}

0.8V

10k

Ω

x3.65

t

R₁

T₂

V₁

PW M OP

Figure 7

Light Load Conditions

C₁

20pF

3.2.1

PWM-OP

Voltage Ramp

Figure 6 Improved Current Mode

The input of the PWM-OP is applied over the internal

leading edge blanking to the external sense resistor

R_Senseconnected to pin ISense. R_Senseconverts 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 singal is fed into the positive inputs of the PWM-

Comparator, C5 and the Soft-Start-Comparator.

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 V₁and the 1st order

low pass filter composed of R₁and C₁(see Figure 6,

Figure 7). Every time the oscillator shuts down for max.

duty cycle limitation the switch T2 is closed by V_OSC

When the oscillator triggers the Gate Driver T2 is

opened so that the voltage ramp can start.

.

3.2.2

PWM-Comparator

The PWM-Comparator compares the sensed current

signal of the integrated CoolMOS^TMwith the feedback

signal V_FB(see Figure 8). V_FBis created by an external

optocoupler or external transistor in combination with

the internal pullup resistor R_FBand provides the load

information of the feedback circuitry. When the

amplified current signal of the integrated CoolMOS™

exceeds the signal V_FBthe PWM-Comparator switches

off the Gate Driver.

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 C5 Comparator the Gate Driver is

switched-off until the voltage ramp exceeds 0.3V. It

allows the duty cycle to be reduced continously till 0%

by decreasing V_FBbelow that threshold.

Datasheet

8

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Functional Description

pullup resistor R_Soft-Start. The Soft-Start-Comparator

compares the voltage at pin SoftS at the negative input

with the ramp signal of the PWM-OP at the positive

input. When Soft-Start voltage V_SoftSis less than

Feedback voltage V_FBthe Soft-Start-Comparator limits

the pulse width by reseting the PWM-Latch (see Figure

9). In addition to Start-Up, Soft-Start is also activated at

each restart attempt during Auto Restart. By means of

the above mentioned C_Soft-Startthe Soft-Start can be

defined by the user. The Soft-Start is finished when

6.5V

Soft-Start Com parator

R_FB

FB

PW M -Latch

V_SoftSexceeds 5.3V. At that time the Protection Unit is

activated by Comparator C4 and senses the FB by

Comparator C3 wether the voltage is below 4.8V which

means that the voltage on the secondary side of the

SMPS is settled. The internal Zener Diode at SoftS with

breaktrough voltage of 5.6V is to prevent the internal

circuit from saturation (see Figure 10).

PW M Com parator

0.8V

Optocoupler

PW M O P

Isense

x3.65

6.5V

Power-Up Reset

5.6V

R_Soft-Start

Error-Latch

Improved

R

S

R

S

Q

SoftS

6.5V

Current Mode

C4

G 2

5.3V

Figure 8

PWM Controlling

4.8V

R_FB

C3

3.3

Soft-Start

Gate

Driver

FB

Clock

V_SoftS

PW M -Latch

Figure 10 Activation of Protection Unit

5.6V

5.3V

The Start-Up time T_Start-Upwithin the converter output

voltage V_OUTis settled must be shorter than the Soft-

Start Phase T_Soft-Start(see Figure 11).

T_Soft-Start

T_{Soft − Start}

C_{Soft − Start}

=

G ate Driver

t

R_{Soft − Start}×1,69

By means of Soft-Start there is an effective

minimization of current and voltage stresses on the

integrated CoolMOS™, the clamp circuit and the output

overshoot and prevents saturation of the transformer

during Start-Up.

Figure 9

Soft-Start Phase

The Soft-Start is realized by the internal pullup resistor

R_Soft-Startand the external Capacitor C_Soft-Start(see

Figure 2). The Soft-Start voltage V_SoftSis generated by

charging the external capacitor C_Soft-Startby the internal

Datasheet

9

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Functional Description

kHz

100

V_SoftS

5.3V

65

T_Soft-Start

21,5

0,9

V_FB

t

1,0

1,1

1,2

1,3

1,4

1,5

1,6

1,7

1,8

1,9

2

V

V_FB

4.8V

Figure 12 Frequency Dependence

3.5

Current Limiting

V_{O UT}

There is a cycle by cycle current limiting realised by the

Current-Limit Comparator to provide an overcurrent

detection. The source current of the integrated

CoolMOS^TMis sensed via an external sense resistor

R_Sense. By means of R_Sensethe source current is

transformed to a sense voltage V_Sense. When the

voltage V_Senseexceeds the internal threshold voltage

V_csththe Current-Limit-Comparator immediately turns

off the gate drive. To prevent the Current Limiting from

distortions caused by leading edge spikes a Leading

Edge Blanking is integrated at the Current Sense.

Furthermore a Propagation Delay Compensation is

added to support the immedeate shut down of the

CoolMOS™ in case of overcurrent.

V_{O UT}

T_Start-Up

t

Figure 11 Start Up Phase

3.4

Oscillator and Frequency

Reduction

3.5.1

Leading Edge Blanking

3.4.1

Oscillator

The oscillator generates a frequency f_switch= 100kHz. A

resistor, a capacitor and a current source and current

sink which determine the frequency are integrated. The

charging and discharging current of the implemented

oscillator capacitor are internally trimmed, in order to

achieve a very accurate switching frequency. The ratio

of controlled charge to discharge current is adjusted to

reach a max. duty cycle limitation of D_max=0.72.

V_Sense

V_csth

t_LEB= 220ns

3.4.2

Frequency Reduction

The frequency of the oscillator is depending on the

voltage at pin FB. The dependence is shown in Figure

12. This feature allows a power supply to operate at

lower frequency at light loads thus lowering the

switching losses while maintaining good cross

regulation performance and low output ripple. In case

of low power the power consumption of the whole

SMPS can now be reduced very effective. The minimal

reachable frequency is limited to 21.5 kHz to avoid

audible noise in any case.

t

Figure 13 Leading Edge Blanking

Each time when CoolMOS™ is switched on a leading

spike is generated due to the primary-side

capacitances and secondary-side rectifier reverse

recovery time. To avoid a premature termination of the

switching pulse this spike is blanked out with a time

constant of t_LEB= 220ns. During that time the output of

the Current-Limit Comparator cannot switch off the

gate drive.

Datasheet

10

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Functional Description

The propagation delay compensation is done by

means of a dynamic threshold voltage V_csth(see Figure

15). In case of a steeper slope the switch off of the

driver is earlier to compensate the delay.

3.5.2

Propagation Delay Compensation

In case of overcurrent detection by I_Limitthe shut down

of CoolMOS™ is delayed due to the propagation delay

of the circuit. This delay causes an overshoot of the

peak current I_peakwhich depends on the ratio of dI/dt of

the peak current (see Figure 14).

E.g. I_peak= 0.5A with R_Sense= 2 . Without propagation

delay compensation the current sense threshold is set

to a static voltage level V_csth=1V. A current ramp of

dI/dt = 0.4A/µs, that means dV_Sense/dt = 0.8V/µs, and a

propagation delay time of i.e. t_{Propagation Delay}=180ns

leads then to a I_peakovershoot of 12%. By means of

propagation delay compensation the overshoot is only

about 2% (see Figure 16).

.

Signal2

I_{O vershoot2}

Signal1

t_{Propagation Delay}

I_Sense

I_peak2

I_peak1

I_{Lim it}

with compensation

without compensation

V

1,3

I_{O vershoot1}

1,25

1,2

1,15

1,1

t

1,05

1

Figure 14 Current Limiting

The overshoot of Signal2 is bigger than of Signal1 due

to the steeper rising waveform.

0,95

0,9

0

0,2 0,4 0,6 0,8

1

1,2 1,4 1,6 1,8

2

V

A propagation delay compensation is integrated to

bound the overshoot dependent on dI/dt of the rising

primary current. That means the propagation delay

time between exceeding the current sense threshold

dV_Sense

dt

µs

Figure 16 Overcurrent Shutdown

V_csthand the switch off of CoolMOS™ is compensated

over temperature within a range of at least.

3.6

PWM-Latch

dI

dV _Sense

dt

peak

0 ≤ R_Sense

×

≤ 1

The oscillator clock output applies a set pulse to the

PWM-Latch when initiating CoolMOS™ conduction.

After setting the PWM-Latch can be reset by the PWM-

OP, the Soft-Start-Comparator, the Current-Limit-

Comparator, Comparator C3 or the Error-Latch of the

Protection Unit. In case of reseting the driver is shut

down immediately.

dt

So current limiting is now capable in a very accurate

way (see Figure 16).

V_OSC

max. Duty Cycle

3.7

Driver

off time

The driver-stage drives the gate of the CoolMOS™

and is optimized to minimize EMI and to provide high

circuit efficiency. This is done by reducing the switch on

slope when reaching the CoolMOS™ threshold. This is

achieved by a slope control of the rising edge at the

driver’s output (see Figure 17).

V_Sense

t

Propagation Delay

V_csth

Thus the leading switch on spike is minimized. When

CoolMOS™ is switched off, the falling shape of the

driver is slowed down when reaching 2V to prevent an

overshoot below ground. Furthermore the driver circuit

is designed to eliminate cross conduction of the output

stage. At voltages below the undervoltage lockout

threshold V_VCCoffthe gate drive is active low.

Signal1

Signal2

t

Figure 15 Dynamic Voltage Threshold V_csth

Datasheet

11

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Functional Description

ca. t = 130ns

V_{G ate}

Overload & Open loop/normal load

5µs Blanking

FB

4.8V

Failure

Detection

5V

t

SoftS

5.3V

t

Figure 17 Gate Rising Slope

Soft-Start Phase

3.8

Protection Unit (Auto Restart Mode)

An overload, open loop and overvoltage detection is

integrated within the Protection Unit. These three

failure modes are latched by an Error-Latch. Additional

thermal shutdown is latched by the Error-Latch. In case

of those failure modes the Error-Latch is set after a

blanking time of 5µs and the CoolMOS™ is shut down.

That blanking prevents the Error-Latch from distortions

caused by spikes during operation mode.

t

T_Burst1

Driver

T_Restart

t

3.8.1

Overload & Open loop with normal

load

VCC

13.5V

Figure 18 shows the Auto Restart Mode in case of

overload or open loop with normal load. The detection

of open loop or overload is provided by the Comparator

C3, C4 and the AND-gate G2 (see Figure19). The

detection is activated by C4 when the voltage at pin

SoftS exceeds 5.3V. Till this time the IC operates in the

Soft-Start Phase. After this phase the comparator C3

can set the Error-Latch in case of open loop or overload

which leads the feedback voltage V_FBto exceed the

threshold of 4.8V. After latching VCC decreases till

8.5V and inactivates the IC. At this time the external

Soft-Start capacitor is discharged by the internal

transistor T1 due to Power Down Reset. When the IC

is inactive V_VCCincreases till V_CCon= 13.5V by charging

the Capacitor C_VCCby means of the Start-Up Resistor

8.5V

t

Figure 18 Auto Restart Mode

6.5V

Power Up Reset

R_Soft-Start

SoftS

R_Start-Up. Then the Error-Latch is reset by Power Up

Reset and the external Soft-Start capacitor C_Soft-Startis

charged by the internal pullup resistor R_Soft-Start. During

the Soft-Start Phase which ends when the voltage at

pin SoftS exceeds 5.3V the detection of overload and

open loop by C3 and G2 is inactive. In this way the Start

Up Phase is not detected as an overload.

C_Soft-Start

C4

Error-Latch

5.3V

G 2

T1

4.8V

C3

FB

R _FB

6.5V

Figure 19 FB-Detection

Datasheet

12

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Functional Description

But the Soft-Start Phase must be finished within the detection due to varying of VCC concerning the

Start Up Phase to force the voltage at pin FB below the regulation of the converter output. When the voltage

failure detection threshold of 4.8V.

V_SoftSis above 4.0V the overvoltage detection by C1 is

deactivated.

3.8.2

Overvoltage due to open loop with

no load

VCC

Open loop & no load condition

5µs Blanking

6.5V

FB

Error Latch

C1

C2

G 1

16.5V

4.8V

R_Soft-Start

Failure

Detection

4.0V

SoftS

t

Soft-Start Phase

C_Soft-Start

SoftS

T1

Power Up Reset

5.3V

4.0V

Overvoltage

Detection Phase

Figure 21 Overvoltage Detection

t

T_Burst2

Driver

T_Restart

3.8.3

Thermal Shut Down

Thermal Shut Down is latched by the Error-Latch when

junction temperature T_jof the pwm controller is

exceeding an internal threshold of 140°C. In that case

the IC switches in Auto Restart Mode.

t

O vervoltage Detection

VCC

16.5V

13.5V

8.5V

t

Figure 20 Auto Restart Mode

Figure 20 shows the Auto Restart Mode for open loop

and no load condition. In case of this failure mode the

converter output voltage increases and also VCC. An

additional protection by the comparators C1, C2 and

the AND-gate G1 is implemented to consider this

failure mode (see Figure 21).The overvoltage detection

is provided by Comparator C1 only in the first time

during the Soft-Start Phase till the Soft-Start voltage

exceeds the threshold of the Comparator C2 at 4.0V

and the voltage at pin FB is above 4.8V. When VCC

exceeds 16.5V during the overvoltage detection phase

C1 can set the Error-Latch and the Burst Phase during

Auto Restart Mode is finished earlier. In that case

T_Burst2is shorter than T_Soft-Start. By means of C2 the

normal operation mode is prevented from overvoltage

Note: All the values which are mentioned in the

functional description are typical. Please refer

to Electrical Characteristics for min/max limit

values.

Datasheet

13

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Electrical Characteristics

4

Electrical Characteristics

4.1

Absolute Maximum Ratings

Note: Absolute maximum ratings are defined as ratings, which when being exceeded may lead to destruction

of the integrated circuit. For the same reason make sure, that any capacitor that will be connected to pin 6

(VCC) is discharged before assembling the application circuit.

Parameter

Symbol

Limit Values

Unit

Remarks

min.

max.

Drain Source Voltage

ICE2A165/265/365

V_DS

-

650

V

T_j=110°C

Drain Source Voltage

ICE2A180/280

-

800

Avalanche energy,

repetitive t_ARlimited by

max. T_j=150°C¹⁾

ICE2A165

ICE2A265

ICE2A365

ICE2A180

ICE2A280

ICE2A165

ICE2A265

ICE2A365

ICE2A180

ICE2A280

E_AR1

E_AR2

E_AR3

E_AR4

E_AR5

I_AR1

I_AR2

I_AR3

I_AR4

I_AR5

V_CC

V_FB

-

0.2

0.4

0.5

0.2

0.4

1

mJ

A

-

Avalanche current,

repetitive t_ARlimited by

max. T_j=150°C¹⁾

-

2

A

-

3

A

-

1

A

-

2

A

V_CCSupply Voltage

FB Voltage

-0.3

-40

-50

-

22

6.5

3

V

SoftS Voltage

V_SoftS

I_Sense

T_j

V

ISense

V

Junction Temperature

Storage Temperature

150

90

°C

K/W

Controller & CoolMOS™

T_S

Thermal Resistance

Junction-Ambient

R_thJA

P-DIP-8-6

ESD Capability²⁾

V_ESD

-

2

kV

Human Body Model

1)

Repetetive avalanche causes additional power losses that can be calculated as P_AV=E_AR*f

2)

Equivalent to discharging a 100pF capacitor through a 1.5 kΩ series resistor

Datasheet

14

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Electrical Characteristics

4.2

Operating Range

Note: Within the operating range the IC operates as described in the functional description.

Parameter

Symbol

Limit Values

Unit

Remarks

min.

max.

21

V_CCSupply Voltage

V_CC

V_CCoff

-25

V

Junction Temperature of

Controller

T_JCon

130

°C

limited due to thermal shut down of

controller

Junction Temperature of

T_JCoolMOS

-25

150

°C

CoolMOS™

4.3

Characteristics

Note: The electrical characteristics involve the spread of values guaranteed within the specified supply voltage

and junction temperature range T_Jfrom – 25 °C to 125 °C.Typical values represent the median values,

which are related to 25°C. If not otherwise stated, a supply voltage of V_CC= 15 V is assumed.

4.3.1

Supply Section

Parameter

Symbol

Limit Values

Unit

Test Condition

min.

typ.

27

max.

Start Up Current

I_VCC1

I_VCC2

-

55

µA

V_CC=V_CCon-0.1V

V_SoftS= 0

Supply Current with Inactiv

Gate

5.0

6.6

mA

I

_FB= 0

Supply Current

with Activ Gate

ICE2A165

ICE2A265

ICE2A365

ICE2A180

ICE2A280

I_VCC3

-

6.5

6.7

8.5

6.5

7.7

7.8

8

mA

V_SoftS= 5V

I

_FB= 0

V_SoftS= 5V

I

_FB= 0

9.8

7.8

9

V_SoftS= 5V

I

_FB= 0

V_SoftS= 5V

I

_FB= 0

V_SoftS= 5V

I

_FB= 0

VCC Turn-On Threshold

VCC Turn-Off Threshold

VCC Turn-On/Off Hysteresis

V_CCon

V_CCoff

V_CCHY

13

-

4.5

13.5

8.5

5

14

-

5.5

V

4.3.2

Internal Voltage Reference

Parameter

Symbol

Limit Values

Unit

Test Condition

min.

typ.

max.

6.63

Trimmed Reference Voltage

V_REF

6.37

6.50

V

measured at pin FB

Datasheet

15

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Electrical Characteristics

4.3.3

Control Section

Parameter

Symbol

Limit Values

Unit

Test Condition

min.

93

-

typ.

100

21.5

4.65

0.72

-

max.

Oscillator Frequency

Reduced Osc. Frequency

Frequency Ratio f_osc1/f_osc2

Max Duty Cycle

f_OSC1

f_OSC2

107

-

kHz

V_FB= 4V

V_FB= 1V

4.5

0.67

0

4.9

0.77

-

D_max

D_min

Min Duty Cycle

V_FB< 0.3V

PWM-OP Gain

A_V

3.45

-

3.65

0.80

-

3.85

-

Max. Level of Voltage Ramp

V_Max-Ramp

V

V_FBOperating Range Min Level V_FBmin

V_FBOperating Range Max level V_FBmax

0.3

-

V

-

4.6

4.9

62

V

Feedback Resistance

Soft-Start Resistance

R_FB

3.0

42

3.7

50

kΩ

R_Soft-Start

4.3.4

Protection Unit

Parameter

Symbol

Limit Values

Unit

Test Condition

min.

typ.

max.

Over Load & Open Loop

Detection Limit

V_FB2

4.65

4.8

4.95

5.46

4.12

17.2

V

V_SoftS> 5.5V

V_FB> 5V

Activation Limit of Overload &

Open Loop Detection

V_SoftS1

V_SoftS2

V_VCC1

5.15

3.88

16

5.3

Deactivation Limit of

Overvoltage Detection

4.0

V_FB> 5V

V_CC> 17.5V

Overvoltage Detection Limit

16.5

V_SoftS< 3.8V

V_FB> 5V

Latched Thermal Shutdown

Spike Blanking

T_jSD

130

-

140

5

150

-

°C

guaranteed by design

t_Spike

µs

4.3.5

Current Limiting

Parameter

Symbol

Limit Values

Unit

Test Condition

min.

typ.

max.

Peak Current Limitation (incl.

Propagation Delay Time)

(see Figure 7)

V_csth

0.95

1.00

1.05

-

V

dV_sense/ dt = 0.6V/µs

Leading Edge Blanking

t_LEB

-

220

ns

Datasheet

16

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Electrical Characteristics

4.3.6

CoolMOS™ Section

Parameter

Symbol

Limit Values

Unit

Test Condition

min.

typ.

max.

Drain Source Breakdown Voltage V_(BR)DSS

ICE2A165/265/365

600

650

-

V

T_j=25°C

T_j=110°C

Drain Source Breakdown Voltage V_(BR)DSS

ICE2A180/280

800

870

-

V

T_j=25°C

T_j=110°C

-

Drain Source

On-Resistance

ICE2A165 R_DSon1

ICE2A265 R_DSon2

ICE2A365 R_DSon3

ICE2A180 R_DSon4

ICE2A280 R_DSon5

-

3

6.6

3.3

7.3

Ω

T_j=25°C

T_j=125°C

-

0.9

1.9

1.08

2.28

Ω

T_j=25°C

T_j=125°C

-

0.45

0.95

0.54

1.14

Ω

T_j=25°C

T_j=125°C

-

3

6.6

3.3

7.3

Ω

T_j=25°C

T_j=125°C

-

0.8

1.7

1.06

2.04

Ω

T_j=25°C

T_j=125°C

Effective output

capacitance, energy

ICE2A265 C_o(er)2

ICE2A365 C_o(er)3

ICE2A180 C_o(er)4

ICE2A280 C_o(er)5

-

7

-

pF

µA

ns

V_DS=0V to 480V

V_DS=0V to 640V

V_VCC=0V

21

30

7

22

0.5

30¹⁾

Zero Gate Voltage Drain Current I_DSS

Rise Time

Fall Time

1)

t_rise

t_fall

Measured in a Typical Flyback Converter Application

Datasheet

17

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Typical Performance Characteristics

5

Typical Performance Characteristics

40

38

36

34

32

30

28

26

24

22

13,58

13,56

13,54

13,52

13,50

13,48

13,46

13,44

13,42

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 22 Start Up Current I_VCC1vs. T_j

Figure 25 VCC Turn-On Threshold V_VCConvs. T_j

6,0

5,7

5,4

5,1

4,8

4,5

8,67

8,64

8,61

8,58

8,55

8,52

8,49

8,46

8,43

8,40

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 23 Static Supply Current I_VCC2vs. T_j

Figure 26 VCC Turn-Off Threshold V_VCCoffvs. T_j

9,0

8,6

5,10

5,07

5,04

5,01

4,98

4,95

4,92

4,89

4,86

4,83

ICE2A365

8,2

7,8

ICE2A280

7,4

7,0

6,6

ICE2A265

ICE2A165

ICE2A180

6,2

5,8

5,4

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 24 Supply Current I_VCC3vs. T_j

Figure 27 VCC Turn-On/Off HysteresisV_VCCHYvs. T_j

Datasheet

18

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Typical Performance Characteristics

6,55

6,54

6,53

6,52

6,51

6,50

6,49

6,48

6,47

6,46

6,45

4,70

4,68

4,66

4,64

4,62

4,60

4,58

4,56

4,54

4,52

4,50

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 28 Trimmed Reference V_REFvs. T_j

Figure 31 Frequency Ratio f_OSC1/ f_OSC2vs. T_j

102,0

101,5

101,0

100,5

100,0

99,5

0,730

0,728

0,726

0,724

0,722

0,720

0,718

0,716

0,714

0,712

0,710

99,0

98,5

98,0

97,5

97,0

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 29 Oscillator Frequency f_OSC1vs. T_j

Figure 32 Max. Duty Cycle vs. T_j

21,8

21,7

21,6

21,5

21,4

21,3

21,2

21,1

21,0

20,9

20,8

3,70

3,69

3,68

3,67

3,66

3,65

3,64

3,63

3,62

3,61

3,60

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 30 Reduced Osc. Frequency f_OSC2vs. T_j

Figure 33 PWM-OP Gain A_Vvs. T_j

Datasheet

19

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Typical Performance Characteristics

4,00

3,95

3,90

3,85

3,80

3,75

3,70

3,65

3,60

3,55

3,50

5,35

5,34

5,33

5,32

5,31

5,30

5,29

5,28

5,27

5,26

5,25

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 34 Feedback Resistance R_FBvs. T_j

Figure 37 Detection Limit V_Soft-Start1vs. T_j

58

56

54

52

50

48

46

44

42

40

4,05

4,04

4,03

4,02

4,01

4,00

3,99

3,98

3,97

3,96

3,95

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 35 Soft-Start Resistance R_Soft-Startvs. T_j

Figure 38 Detection Limit V_Soft-Start2vs. T_j

4,85

4,84

4,83

4,82

4,81

4,80

4,79

4,78

4,77

4,76

4,75

16,80

16,75

16,70

16,65

16,60

16,55

16,50

16,45

16,40

16,35

16,30

16,25

16,20

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 36 Detection Limit V_FB2vs. T_j

Figure 39 Overvoltage Detection Limit V_VCC1vs. T_j

Datasheet

20

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Typical Performance Characteristics

1,010

1,008

1,006

1,004

1,002

1,000

0,998

0,996

0,994

0,992

0,990

2,0

1,8

1,6

1,4

ICE2A265

1,2

ICE2A280

1,0

0,8

0,6

0,4

0,2

0,0

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 40 Peak Current Limitation V_csthvs. T_j

Figure 43 Drain Source On-Resistance R_DSonvs. T_j

280

270

260

250

240

230

220

210

200

190

180

1,0

0,9

0,8

0,7

ICE2A365

0,6

0,5

0,4

0,3

0,2

0,1

0,0

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 41 Leading Edge Blanking V_VCC1vs. T_j

Figure 44 Drain Source On-Resistance R_DSonvs. T_j

900

7,6

7,0

6,4

5,8

5,2

ICE2A180

ICE2A280

850

800

750

700

650

4,6

ICE2A165

ICE2A180

4,0

3,4

2,8

2,2

1,6

1,0

ICE2A165

ICE2A265

ICE2A365

600

550

500

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

-25 -15 -5

5

15 25 35 45 55 65 75 85 95 105 115 125

Junction Temperature [°C]

Figure 42 Drain Source On-Resistance R_DSonvs. T_j

Figure 45 Breakdown Voltage V_BR(DSS)vs. T_j

Datasheet

21

September 2001

CoolSET™-F2

ICE2A165/265/365

ICE2A180/280

Outline Dimension

6

Outline Dimension

P-DIP-8-6

(Plastic Dual In-line

Package)

Figure 46

Dimensions in mm

Datasheet

22

September 2001

Total Quality Management

Qualität hat für uns eine umfassende

Bedeutung. Wir wollen allen Ihren

Ansprüchen in der bestmöglichen

Weise gerecht werden. Es geht uns also

nicht nur um die Produktqualität –

Quality takes on an allencompassing

significance at Semiconductor Group.

For us it means living up to each and

every one of your demands in the best

possible way. So we are not only

concerned with product quality. We

direct our efforts equally at quality of

supply and logistics, service and

support, as well as all the other ways in

which we advise and attend to you.

unsere

Anstrengungen

gelten

gleichermaßen der Lieferqualität und

Logistik, dem Service und Support

sowie allen sonstigen Beratungs- und

Betreuungsleistungen.

Dazu

gehört

eine

bestimmte

Part of this is the very special attitude of

our staff. Total Quality in thought and

deed, towards co-workers, suppliers

and you, our customer. Our guideline is

“do everything with zero defects”, in an

open manner that is demonstrated

beyond your immediate workplace, and

to constantly improve.

Geisteshaltung unserer Mitarbeiter.

Total Quality im Denken und Handeln

gegenüber Kollegen, Lieferanten und

Ihnen, unserem Kunden. Unsere

Leitlinie ist jede Aufgabe mit „Null

Fehlern“ zu lösen

–

in offener

Sichtweise auch über den eigenen

Arbeitsplatz hinaus – und uns ständig

zu verbessern.

Throughout the corporation we also

think in terms of Time Optimized

Processes (top), greater speed on our

part to give you that decisive

competitive edge.

Unternehmensweit orientieren wir uns

dabei auch an „top“ (Time Optimized

Processes), um Ihnen durch größere

Schnelligkeit

Wettbewerbsvorsprung zu verschaffen.

den

entscheidenden

Give us the chance to prove the best of

performance through the best of quality

– you will be convinced.

Geben Sie uns die Chance, hohe

Leistung durch umfassende Qualität zu

beweisen.

Wir werden Sie überzeugen.

h t t p : / / w w w . i n f i n e o n . c o m

Published by Infineon Technologies AG


型号：	ICE2A265
厂家：	Infineon
描述：	Off-Line SMPS Current Mode Controller with integrated 650V/800V CoolMOS⑩ 离线式开关电源电流模式控制器，集成650V / 800V的CoolMOS ？稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
文件：	总23页 (文件大小：1498K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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