ICE2PCS01GXT - INFINEON TECHNOLOGIES AG

CCM-PFC

ICE2PCS01

ICE2PCS01G

Standalone Power Factor

Correction (PFC) Controller in

Continuous Conduction Mode

(CCM)

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

Version 2.3, 22 March 2010

Powe r M ana g eme n t & Su p ply

Edition 2010-03-22

Published by

Infineon Technologies AG

81726 München, Germany

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CCM-PFC

Revision History: 2010-03-22 Datasheet

Previous Version: V 2.1

Page Subjects (major changes since last revision)

18&19 Package outline dimension changed

CCM-PFC

ICE2PCS01

ICE2PCS01G

Version 2.3 3 22 March 2010

Type Package

ICE2PCS01 PG-DIP-8

ICE2PCS01G PG-DSO-8

Standalone Power Factor Correction

(PFC) Controller in Continuous

Conduction Mode (CCM)

ICE2PCS01

PG-DIP-8

ICE2PCS01G

PG-DSO-8

Product Highlights

• Leadfree DIP and DSO Package

• Wide Input Range

• Optimized for applications which require fast Startup

• Output Power Controllable by External Sense Resistor

• Programmable Operating Frequency

• Output Over-Voltage Protection

• Fast Output Dynamic Response during Load Jumps

Features

• Ease of Use with Few External Components

• Supports Wide Range

• Average Current Control

• External Current and Voltage Loop Compensation

for Greater User Flexibility

• Programmable Operating/Switching Frequency

(50kHz - 250kHz)

• Max Duty Cycle of 95% (at 25°C) at 125kHz

• Trimmed Internal Reference Voltage (3V+2% at

25°C)

• VCC Under-Voltage Lockout

• Cycle by Cycle Peak Current Limiting

• Output Over-Voltage Protection

• Open Loop Detection

• Enhanced Dynamic Response

• Short Startup(SoftStart) duration

• Fulfills Class D Requirements of IEC 1000-3-2

• Soft Overcurrent Protection

•

Description

The ICE2PCS01/G is a 8-pin wide input range controller

IC for active power factor correction converters. It is de-

signed for converters in boost topology, and requires few

external components. Its power supply is recommended

to be provided by an external auxiliary supply which will

switch on and off the IC.

The IC operates in the CCM with average current control,

and in DCM only under light load condition. The switching

frequency is programmable by the resistor at pin 4. Both

compensations for the current and voltage loop are exter-

nal to allow full user control.

There are various protection features incorporated to en-

sure safe system operation conditions. The internal refer-

ence is trimmed (3V+2%) to ensure precise protection and

control level. The device has a fast startup time with con-

trolled peak start up current.

85... 265VAC EMI-Filter

VoltageLoop

Compensation

ProtectionUnit

Variable

Oscillator

Current Loop

Compensation

PWMLogic

Driver

ICE2PCS01/

ICE2PCS01G

PFC-Controller

VCC

AuxiliarySupply VOUT

Typical Application

SWITCH

Ramp

Generator

FREQ

ICOMP

VSENSE

VCOMP

ISENSE GND

Nonlinear

Gain

GATE

CCM-PFC

ICE2PCS01/G

Version 2.3 4 22 March 2010

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

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

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

2 Representative Block diagram ..................................6

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

3.1 General .....................................................7

3.2 PowerSupply ................................................7

3.3 Start-up .....................................................7

3.4 System Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.4.1 Soft Over Current Control (SOC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.4.2 Peak Current Limit (PCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.4.3 Open Loop Protection / Input Under Voltage Protect (OLP) . . . . . . . . . . . 9

3.4.4 Over-Voltage Protection (OVP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.5 Frequency Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.6 Average Current Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.6.1 Complete Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.6.2 Current Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.6.3 Pulse Width Modulation (PWM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.6.4 Nonlinear Gain Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.7 PWMLogic .................................................11

3.8 VoltageLoop................................................11

3.8.1 Voltage Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.8.2 Enhanced Dynamic Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.9 Output Gate Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Electrical Characteristics .....................................13

4.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.3.1 Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.3.2 Variable Frequency Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.3.3 PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.3.4 System Protection Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.3.5 Current Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.3.6 Voltage Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.3.7 Driver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5 Outline Dimension ..........................................18

Version 2.3 5 22 March 2010

CCM-PFC

ICE2PCS01/G

Pin Configuration and Functionality

1 Pin Configuration and Functionality

1.1 Pin Configuration

Figure 1 Pin Configuration (top view)

1.2 Pin Functionality

GND (Ground)

The ground potential of the IC.

ICOMP (Current Loop Compensation)

Low pass filter and compensation of the current control

loop. The capacitor which is connected at this pin

integrates the output current of OTA2 and averages the

current sense signal.

ISENSE (Current Sense Input)

The ISENSE Pin senses the voltage drop at the

external sense resistor (R1). This is the input signal for

the average current regulation in the current loop. It is

also fed to the peak current limitation block.

During power up time, high inrush currents cause high

negative voltage drop at R1, driving currents out of pin

3 which could be beyond the absolute maximum

ratings. Therefore a series resistor (R2) of around

220Wis recommended in order to limit this current into

the IC.

FREQ (Frequency Setting)

This pin allows the setting of the operating switching

frequency by connecting a resistor to ground. The

frequency range is from 50kHz to 250kHz.

VSENSE (Voltage Sense/Feedback)

The output bus voltage is sensed at this pin via a

resistive divider. The reference voltage for this pin is

3V.

VCOMP (Voltage Loop Compensation)

This pin provides the compensation of the output

voltage loop with a compensation network to ground

(see Figure 2). This also gives the soft start function

which controls an increasing AC input current during

start-up.

VCC (Power Supply)

The VCC pin is the positive supply of the IC and should

be connected to an external auxiliary supply. The

operating range is between 11V and 26V. The turn-on

threshold is at 11.8V and under voltage occurs at 11V.

There is no internal clamp for a limitation of the power

supply.

GATE

The GATE pin is the output of the internal driver stage,

which has a capability of 1.5A instantaneous source

and 2.0A instantaneous sink current.

Its gate drive voltage is clamped at 15V (typically).

Pin Symbol Function

1 GND IC Ground

2 ICOMP Current Loop Compensation

3 ISENSE Current Sense Input

4 FREQ Switching Frequency Setting

5 VCOMP Voltage Loop Compensation

6 VSENSE VOUT Sense (Feedback) Input

7 VCC IC Supply Voltage

8 GATE Gate Drive Output

Package PG-DIP-8 / PG-DSO-8

GATEGND

ICOMP

ISENSE

VCC

VSENSE

FREQ VCOMP

CCM-PFC

ICE2PCS01/G

Representative Block diagram

Version 2.3 6 22 March 2010

2 Representative Block diagram

Figure 2 Representative Block diagram

CCM-PFC

ICE2PCS01/G

Functional Description

Version 2.3 7 22 March 2010

3.1 General

The ICE2PCS01/G is a 8 pin control IC for power factor

correction converters. It comes in both DIP and DSO

packages and is suitable for wide range line input

applications from 85 to 265 VAC. The IC supports

converters in boost topology and it operates in

continuous conduction mode (CCM) with average

current control.

The IC operates with a cascaded control; the inner

current loop and the outer voltage loop. The inner

current loop of the IC controls the sinusoidal profile for

the average input current. It uses the dependency of

the PWM duty cycle on the line input voltage to

determine the corresponding input current. This means

the average input current follows the input voltage as

long as the device operates in CCM. Under light load

condition, depending on the choke inductance, the

system may enter into discontinuous conduction mode

(DCM). In DCM, the average current waveform will be

distorted but the resultant harmonics are still low

enough to meet the Class D requirement of IEC 1000-

3-2.

The outer voltage loop controls the output bus voltage.

Depending on the load condition, OTA1 establishes an

appropriate voltage at VCOMP pin which controls the

amplitude of the average input current.

The IC is equipped with various protection features to

ensure safe operating condition for both the system

and device. Important protection features are namely

Open-Loop protection, Current Limitation and Output

Over-voltage Protection.

3.2 Power Supply

An internal under voltage lockout (UVLO) block

monitors the VCC power supply. As soon as it exceeds

11.8V and the voltage at pin 6 (VSENSE) is >0.6V, the

IC begins operating its gate drive and performs its

Startup as shown in Figure 3.

Figure 3 State of Operation respect to VCC

If VCC drops below 11V, the IC is off. The IC will then

be consuming typically 300mA, whereas consuming

13mA during normal operation.

The IC can be turned off and forced into standby mode

by pulling down the voltage at pin 6 (VSENSE) to lower

than 0.6V. The current consumption is reduced to

300µA in this mode.

3.3 Start-up

Figure 4 shows the operation of voltage loop’s OTA1

during startup. The VCOMP pin is pull internally to

ground via switch S1 during UVLO and other fault

conditions (see later section on “System Protection”).

During power up when VOUT is less than 83% of the

rated level, OTA1 sources an output current, maximum

30mA, into the compensation network at pin 5

(VCOMP) causing the voltage at this pin to rise linearly.

This results in a controlled linear increase of the input

current from 0A thus reducing the stress on the

external component.

Figure 4 Startup Circuit

As VOUT has not reached within 5% from the rated

value, VCOMP voltage is level-shifted by the window

detect block as shown in Figure 5, to ensure there is

fast boost up of the output voltage.

When VOUT approaches its rated value, OTA1’s

sourcing current drops and the level shift of the window

detect block is removed. The normal voltage loop then

takes control.

VCC

(VVSENSE >0.6V)

11.8V

11.0V

OFF Start

Up Openloop/

Standby

Normal

Operation

IC's

State OFF

Normal

Operation

(VVSENSE <0.6V) (VVSENSE >0.6V)

VCOMP

VSENSE

OTA1 3V

ICE2PCS01/G

protect

R3 + R 4

R4 x VOUT )

(

3 Functional Description

CCM-PFC

ICE2PCS01/G

Functional Description

Version 2.3 8 22 March 2010

Figure 5 Startup with controlled maximum current

3.4 System Protection

The IC provides several protection features in order to

ensure the PFC system in safe operating range.

Depending on the input line voltage (VIN) and output

bus voltage (VOUT), Figure 7 and 8 show the conditions

when these protections are active.

Figure 6 VIN Related Protection Features

Figure 7 VOUT Related Protection Features

The following sections describe the functionality of

these protection features.

3.4.1 Soft Over Current Control (SOC)

The IC is designed not to support any output power

that corresponds to a voltage lower than -0.75V at the

ISENSE pin. A further increase in the inductor current,

which results in a lower ISENSE voltage, will activate

the Soft Over Current Control (SOC). This is a soft

control as it does not directly switch off the gate drive.

It acts on the nonlinear gain block to result in a reduced

PWM duty cycle.

av(IIN)

VOUT

VOUT =rated

95%rated

Window Detect Normal Control

Max Vcomp current

83%rated

VCOMP

Level-shifted VCOMP t

VIN (VAC)

VCC > VCCUVLO

Normal

Operation IC OFF

VCC<VCCUVLO

IC’s

State

VOUT

PCL / SOC

20%

100%

OLP OLP

108%

OVP

VOUT,Rated

CCM-PFC

ICE2PCS01/G

Functional Description

Version 2.3 9 22 March 2010

Figure 8 SOC and PCL Protection as function of

VISENSE

The rated output power with a minimum VIN (VINMIN) is

Due to the internal parameter tolerance, the maximum

power with VINMIN is

3.4.2 Peak Current Limit (PCL)

The IC provides a cycle by cycle peak current limitation

(PCL). It is active when the voltage at pin 3 (ISENSE)

reaches -1.04V. This voltage is amplified by OP1 by a

factor of -1.43 and connected to comparator C2 with a

reference voltage of 1.5V as shown in Figure 9. A

deglitcher with 300ns after the comparator improves

noise immunity to the activation of this protection.

Figure 9 Peak Current Limit (PCL)

3.4.3 Open Loop Protection / Input Under

Voltage Protect (OLP)

Whenever VSENSE voltage falls below 0.6V, or

equivalently VOUT falls below 20% of its rated value, it

indicates an open loop condition (i.e. VSENSE pin not

connected) or an insufficient input voltage VIN for

normal operation. In this case, most of the blocks within

the IC will be shutdown. It is implemented using

comparator C3 with a threshold of 0.6V as shown in the

IC block diagram in Figure 2.

3.4.4 Over-Voltage Protection (OVP)

Whenever VOUT exceeds the rated value by 5%, the

over-voltage protection OVP is active as shown in

Figure 6. This is implemented by sensing the voltage at

pin VSENSE with respect to a reference voltage of

3.15V. A VSENSE voltage higher than 3.15V will

immediately reduce the output duty cycle, bypassing

the normal voltage loop control. This results in a lower

input power to reduce the output voltage VOUT. A

VSENSE voltage higher than 3.25V will immediately

turn off the gate, thereby preventing damage to bus

capacitor.

3.5 Frequency Setting

The switching frequency of the PFC converter can be

set with an external resistor R5 at FREQ pin as shown

Figure 10. The pin voltage VFREQ is typically 1.7V. The

corresponding capacitor for the oscillator is integrated

in the device and the R5/frequency relationship is given

at the “Electrical Characteristic” section. The

recommended operating frequency range is from

50kHz to 250kHz. As an example, a R5 of 33kWat pin

FREQ will set a switching frequency FSW of 136kHz

typically.

Figure 10 Frequency Versus RFREQ

VISENSE

-0.61V -0.75V -1.04V

Normal

Operation

SOC PCL

POUT(rated)

IC’s

State

POUT(max)

POUT rated( ) VINMIN 0.61

R1 2×

-------------------

´=

POUT max( ) VINMIN 0.75

R1 2×

-------------------

´=

ISENSE

ICE2PCS01/G

IINDUCTOR OP1

1.43x

CurrentLimit

300ns

Deglitcher

TurnOff

Driver

1.5V

Full-wave

Rectifier

CCM-PFC

ICE2PCS01/G

Functional Description

Version 2.3 10 22 March 2010

3.6 Average Current Control

3.6.1 Complete Current Loop

The complete system current loop is shown in Figure

11.

Figure 11 Complete System Current Loop

It consists of the current loop block which averages the

voltage at pin ISENSE, resulted from the inductor

current flowing across R1. The averaged waveform is

compared with an internal ramp in the ramp generator

and PWM block. Once the ramp crosses the average

waveform, the comparator C1 turns on the driver stage

through the PWM logic block. The Nonlinear Gain block

defines the amplitude of the inductor current. The

following sections describe the functionality of each

individual blocks.

3.6.2 Current Loop Compensation

The compensation of the current loop is done at the

ICOMP pin. This is the OTA2 output and a capacitor C3

has to be installed at this node to ground (see Figure

11). Under normal mode of operation, this pin gives a

voltage which is proportional to the averaged inductor

current. This pin is internally shorted to 4.2V in the

event of IC shuts down when OLP and UVLO occur.

3.6.3 Pulse Width Modulation (PWM)

The IC employs an average current control scheme in

continuous conduction mode (CCM) to achieve the

power factor correction.

Assuming the voltage loop is working and output

voltage is kept constant, the off duty cycle DOFF for a

CCM PFC system is given as

From the above equation, DOFF is proportional to VIN.

The objective of the current loop is to regulate the

average inductor current such that it is proportional to

the off duty cycle DOFF, and thus to the input voltage

VIN. Figure 12 shows the scheme to achieve the

objective.

Figure 12 Average Current Control in CCM

The PWM is performed by the intersection of a ramp

signal with the averaged inductor current at pin 5

(ICOMP). The PWM cycle starts with the Gate turn off

for a duration of TOFFMIN (250ns typ.) and the ramp is

kept discharged. The ramp is then allowed to rise after

TOFFMIN expires. The off time of the boost transistor

ends at the intersection of the ramp signal and the

averaged current waveform. This results in the

proportional relationship between the average current

and the off duty cycle DOFF.

Figure 13 shows the timing diagrams of TOFFMIN and the

PWM waveforms.

Figure 13 Ramp and PWM waveforms

3.6.4 Nonlinear Gain Block

The nonlinear gain block controls the amplitude of the

regulated inductor current. The input of this block is the

ICE2PCS01/G

Vout

Gate

Driver

From

Full-wave

Retifier

GATE

OTA2

ICOMP

4.2V

Current Loop

Compensation

Current Loop

Nonlinear

Gain

1.0mS

+/-50uA (linear range)

C3 S2

Fault

ISENSE

PWM

Comparator

PWM Logic

Input From

Voltage Loop

voltage

proportional to

averaged

Inductor current

DOFF

VIN

VOUT

--------------=

ave(I

) at ICOMP

ramp profile

GATE

drive

TOFFMIN

2.5% of T

VCREF(1)

VRAMP

PWM

ramp

released

PWM cycle

(1) VCREF is a function of VICOMP

CCM-PFC

ICE2PCS01/G

Functional Description

Version 2.3 11 22 March 2010

voltage at pin VCOMP. This block has been designed

to support the wide input voltage range (85-265VAC).

3.7 PWM Logic

The PWM logic block prioritizes the control input

signals and generates the final logic signal to turn on

the driver stage. The speed of the logic gates in this

block, together with the width of the reset pulse TOFFMIN,

are designed to meet a maximum duty cycle DMAX of

95% at the GATE output under 136kHz of operation.

In case of high input currents which result in Peak

Current Limitation, the GATE will be turned off

immediately and maintained in off state for the current

PWM cycle. The signal Toffmin resets (highest priority,

overriding other input signals) both the current limit

latch and the PWM on latch as illustrated in Figure 14.

Figure 14 PWM Logic

3.8 Voltage Loop

The voltage loop is the outer loop of the cascaded

control scheme which controls the PFC output bus

voltage VOUT. This loop is closed by the feedback

sensing voltage at VSENSE which is a resistive divider

tapping from VOUT. The pin VSENSE is the input of

OTA1 which has an internal reference of 3V. Figure 15

shows the important blocks of this voltage loop.

3.8.1 Voltage Loop Compensation

The compensation of the voltage loop is installed at the

VCOMP pin (see Figure 15). This is the output of OTA1

and the compensation must be connected at this pin to

ground. The compensation is also responsible for the

soft start function which controls an increasing AC input

current during start-up.

Figure 15 Voltage Loop

3.8.2 Enhanced Dynamic Response

Due to the low frequency bandwidth of the voltage loop,

the dynamic response is slow and in the range of about

several 10ms. This may cause additional stress to the

bus capacitor and the switching transistor of the PFC in

the event of heavy load changes.

The IC provides therefore a “window detector” for the

feedback voltage VVSENSE at pin 6 (VSENSE).

Whenever VVSENSE exceeds the reference value (3V)

by +5%, it will act on the nonlinear gain block which in

turn affect the gate drive duty cycle directly. This

change in duty cycle is bypassing the slow changing

VCOMP voltage, thus results in a fast dynamic

response of VOUT.

3.9 Output Gate Driver

The output gate driver is a fast totem pole gate drive. It

has an in-built cross conduction currents protection and

a Zener diode Z1 (see Figure 16) to protect the external

transistor switch against undesirable over voltages.

The maximum voltage at pin 8 (GATE) is typically

clamped at 15V.

The output is active HIGH and at VCC voltages below

the under voltage lockout threshold VCCUVLO, the gate

drive is internally pull low to maintain the off state.

SL1

SL2

Peak Current

Limit

Current Loop

PWM on signal

Toffmin

2.5% of T

Current

Limit Latch

PWM on

Latch

HIGH =

turn GATE on

VCOMP

VSENSE

OTA1 3V

VIN

Av(IIN)Nonlinear

Gain

ICE2PCS01/G

Vout

Gate Driver

Current Loop

PWM Generation

From

Full-wave

Retifier

GATE

CCM-PFC

ICE2PCS01/G

Functional Description

Version 2.3 12 22 March 2010

Figure 16 Gate Driver

GATE

External

MOS

VCC

Gate Driver

PWM Logic

HIGH to

turn on LV

* LV: Level Shift

ICE2PCS01/G

CCM-PFC

ICE2PCS01/G

Electrical Characteristics

Version 2.3 13 22 March 2010

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.

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.

VCC Supply Voltage VCC -0.3 25 V

FREQ Voltage VFREQ -0.3 5 V

ICOMP Voltage VICOMP -0.3 5 V

ISENSE Voltage VISENSE -20 5 V 2)

ISENSE Current IISENSE -1 1 mA Recommended R2=220W

VSENSE Voltage VVSENSE -0.3 5 V

VSENSE Current IVSENSE -1 1 mA R3>400kW

VCOMP Voltage VVCOMP -0.3 5 V

GATE Voltage VGATE -0.3 17 V Clamped at 15V if driven

internally.

Junction Temperature Tj-40 150 °C

Storage Temperature TS-55 150 °C

Thermal Resistance

Junction-Ambient for DSO-8-13 RthJA (DSO) - 185 K/W PG-DSO-8-13

Thermal Resistance

Junction-Ambient for DIP-8-4 RthJA(DIP) - 90 K/W PG-DIP-8-4

ESD Protection VESD - 2 kV Human Body Model1)

1) According to EIA/JESD22-A114-B (discharging a 100pF capacitor through a 1.5kWseries resistor)

2) Absolute ISENSE current should not be exceeded

Parameter Symbol Limit Values Unit Remarks

min. max.

VCC Supply Voltage VCC VCCUVLO 25 V

Junction Temperature TJCon -40 125 °C

CCM-PFC

ICE2PCS01/G

Electrical Characteristics

Version 2.3 14 22 March 2010

4.3 Characteristics

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

temperature range TJfrom – 40 °C to 125°C.Typical values represent the median values, which are

related to 25°C. If not otherwise stated, a supply voltage of VCC =18V is assumed for test condition.

4.3.1 Supply Section

4.3.2 Variable Frequency Section

Parameter Symbol Limit Values Unit Test Condition

min. typ. max.

VCC Turn-On Threshold VCCon 11.4 11.8 12.7 V

VCC Turn-Off Threshold/

Under Voltage Lock Out VCCUVLO 10.4 11.0 11.7 V

VCC Turn-On/Off Hysteresis VCChy 0.65 0.8 1.4 V

Start Up Current

Before VCCon

ICCstart - 450 1100 mA VVCC=VVCCon -0.1V

Operating Current with active GATE ICCHG - 15 20 mA R5 = 33kW

CL= 4.7nF

Operating Current during Standby ICCStdby - 700 1300 mA VVSENSE= 0.5V

VICOMP= 4V

Parameter Symbol Limit Values Unit Test Condition

min. typ. max.

Switching Frequency (Typical) FSWnom 124 136 147 kHz R5 = 33kW

Switching Frequency (Min.) FSWmin 50 56 62 kHz R5 = 82kW

Switching Frequency (Max.) FSWmax 250 285 315 kHz R5 = 15kW

Voltage at FREQ pin VFREQ 1.65 1.70 1.76 V

CCM-PFC

ICE2PCS01/G

Electrical Characteristics

Version 2.3 15 22 March 2010

4.3.3 PWM Section

4.3.4 System Protection Section

Parameter Symbol Limit Values Unit Test Condition

min. typ. max.

Max. Duty Cycle DMAX 92 95 98.5 % FSW =FSWnom

(R5 = 33kW)

Min. Duty Cycle DMIN 0 % VVCOMP= 0V, VVSENSE= 3V

VICOMP= 4.3V

Min. Off Time TOFFMIN 100 250 580 ns VVSENSE= 3V

VISENSE= 0.1V (R5 = 33kW)

Parameter Symbol Limit Values Unit Test Condition

min. typ. max.

Open Loop Protection (OLP)

VSENSE Threshold VOLP 0.55 0.6 0.65 V

Peak Current Limitation (PCL)

ISENSE Threshold VPCL -1.16 -1.04 -0.95 V

Soft Over Current Control (SOC)

ISENSE Threshold VSOC -0.75 -0.68 -0.61 V

Output Over-Voltage Protection (OVP) VOVP 3.1 3.25 3.4 V

The parameter is not subject to production test - verified by design/characterization

CCM-PFC

ICE2PCS01/G

Electrical Characteristics

Version 2.3 16 22 March 2010

4.3.5 Current Loop Section

4.3.6 Voltage Loop Section

Parameter Symbol Limit Values Unit Test Condition

min. typ. max.

OTA2 Transconductance Gain GmOTA2 0.8 1.0 1.3 mS At Temp = 25°C

OTA2 Output Linear Range1) IOTA2 - ± 50 - mA

ICOMP Voltage during OLP VICOMPF 3.9 4.2 - V VVSENSE= 0.5V

Parameter Symbol Limit Values Unit Test Condition

min. typ. max.

OTA1 Reference Voltage VOTA1 2.92 3.00 3.08 V measured at VSENSE

OTA1 Transconductance Gain GmOTA1 26 39 51 mS

OTA1 Max. Source Current

Under Normal Operation IOTA1SO 18 30 38 mA VVSENSE= 2V

VVCOMP= 3V

OTA1 Max. Sink Current

Under Normal Operation IOTA1SK 21 30 41 mA VVSENSE= 4V

VVCOMP= 3V

Enhanced Dynamic Response

VSENSE High Threshold

VSENSE Low Threshold VHi

VLo

3.09

2.76 3.18

2.85 3.26

2.94 V

VSENSE Input Bias Current at 3V IVSEN3V 0 - 1.5 mA VVSENSE= 3V

VSENSE Input Bias Current at 1V IVSEN1V 0 - 1 mA VVSENSE= 1V

VCOMP Voltage during OLP VVCOMPF 0 0.2 0.4 V VVSENSE= 0.5V

IVCOMP= 0.5mA

CCM-PFC

ICE2PCS01/G

Electrical Characteristics

Version 2.3 17 22 March 2010

4.3.7 Driver Section

Parameter Symbol Limit Values Unit Test Condition

min. typ. max.

GATE Low Voltage VGATEL - - 1.2 V VCC =10V

IGATE = 5 mA

- 1.5 V VCC =10V

IGATE =20 mA

- 0.4 - V IGATE = 0 A

- - 1.0 V IGATE = 20 mA

-0.2 0 - V IGATE = -20 mA

GATE High Voltage VGATEH - 14.8 - V VCC = 25V

CL= 4.7nF

- 14.8 - V VCC = 19V

CL= 4.7nF

7.8 9.2 - V VCC = VVCCoff + 0.2V

CL= 4.7nF

GATE Rise Time tr- 60 - ns VGate = 2V ...12V

CL= 4.7nF

GATE Fall Time tf- 50 - ns VGate = 12V ...2V

CL= 4.7nF

GATE Current, Peak,

Rising Edge IGATE -1.5 - - A CL= 4.7nF1)

1) Design characteristics (not meant for production testing)

GATE Current, Peak,

Falling Edge IGATE - - 2.0 A CL= 4.7nF1)

CCM-PFC

ICE2PCS01/G

Outline Dimension

Version 2.3 18 22 March 2010

5 Outline Dimension

PG-DIP-8 Outline Dimension

CCM-PFC

ICE2PCS01/G

Outline Dimension

Version 2.3 19 22 March 2010

PG-DSO-8 Outline Dimension

Qualität hat für uns eine umfassende

Bedeutung. Wir wollen allen Ihren

Ansprüchen in der bestmöglichen

Weisegerechtwerden.Esgehtunsalso

nicht nur um die Produktqualität –

unsere Anstrengungen gelten

gleichermaßen der Lieferqualität und

Logistik, dem Service und Support

sowie allen sonstigen Beratungs- und

Betreuungsleistungen.

Dazu gehört eine bestimmte

Geisteshaltung unserer Mitarbeiter.

Total Quality im Denken und Handeln

gegenüber Kollegen, Lieferanten und

Ihnen, unserem Kunden. Unsere

Leitlinie ist jede Aufgabe mit „Null

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Sichtweise auch über den eigenen

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zu verbessern.

Unternehmensweit orientieren wir uns

dabei auch an „top“ (Time Optimized

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Geben Sie uns die Chance, hohe

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Wir werden Sie überzeugen.

Quality takes on an allencompassing

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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.

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.

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.

Give us the chance to prove the best of

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– you will be convinced.

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Total Quality Management

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