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ICE2PCS04GXUMA1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
CCM-PFC
ICE2PCS04/G
Version 2.0 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 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 System Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4.1 Input Brown-Out Protection (IBOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4.2 Soft Over Current Control (SOC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4.3 Peak Current Limit (PCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4.4 Open Loop Protection (OLP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4.5 Over-Voltage Protection (OVP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Fixed Switching Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 PWM Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.8 Voltage Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3.3 System Protection Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.4 Current Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.5 Voltage Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3.6 Driver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Version 2.0 5 22 March 2010
CCM-PFC
ICE2PCS04/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
220W is recommended in order to limit this current into
the IC.
VINS (Brown-out Sense Input)
This VINS pin senses a filtered input voltage divider
and detects for the input voltage Brown-out condition.
A Brown-out condition of VINS<0.71V, shuts down the
IC. The IC turns on at VINS>1.5V.
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).
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 internally clamped at 15.0V
(typically).
Pin Symbol Function
1 GND IC Ground
2 ICOMP Current Loop Compensation
3 ISENSE Current Sense Input
4 VINS Brown-out Sense Input
5 VCOMP Voltage Loop Compensation
6 VSENSE V
OUT
Sense (Feedback) Input
7 VCC IC Supply Voltage
8 GATE Gate Drive Output
Package PG-DIP-8 / PG-DSO-8
1
6
7
8
4
3
2
5
GATEGND
ICOMP
ISENSE
VCC
VSENSE
VINS
VCOMP
CCM-PFC
ICE2PCS04/G
Representative Block diagram
Version 2.0 6 22 March 2010
2 Representative Block diagram
Figure 2 Representative Block diagram
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

ICE2PCS04GXUMA1

Mfr. #:
Buy ICE2PCS04GXUMA1
Manufacturer:
Infineon Technologies
Description:
Power Factor Correction - PFC AC/DC STANDALONE
Lifecycle:
New from this manufacturer.
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