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ICE1PCS01G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
CCM-PFC
ICE1PCS01/G
Version 1.2 4 06 Feb 2007
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 (Soft-Start) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.4 System Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.4.1 Brown-Out Protection (BOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.4.2 Soft Over Current Control (SOC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.4.3 Peak Current Limit (PCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.4.4 Open Loop Protection / Input Under Voltage Protect (OLP) . . . . . . . . . . .9
3.4.5 Output Under Voltage Detection (OUV) . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.4.6 Over-Voltage Protection (OVP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.5 Frequency Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6 Average Current Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6.1 Complete Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6.2 Current Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6.3 Pulse Width Modulation (PWM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6.4 Nonlinear Gain Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.7 PWM Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.8 Voltage Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.8.1 Voltage Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.8.2 Enhanced Dynamic Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.9 Output Gate Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.3 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.3.1 Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.3.2 Variable Frequency Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.3.3 PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.3.4 System Protection Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.3.5 Current Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4.3.6 Voltage Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
4.3.7 Driver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Version 1.2 5 06 Feb 2007
CCM-PFC
ICE1PCS01/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
voltage drop at R1, driving currents into pin 3 which
could be beyond the absolute maximum ratings.
Therefore a series resistor (R2) of around 220Ω is
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
5V.
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 10V and 21V. The turn-on
threshold is at 11.2V and under voltage occurs at
10.2V. 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 source and sink current.
Its gate drive voltage is clamped at 11.5V (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 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
FREQ
VCOMP
CCM-PFC
ICE1PCS01/G
Representative Block diagram
Version 1.2 6 06 Feb 2007
2 Representative Block diagram
Figure 2 Representative Block diagram
ICE1PCS01/G
85 ... 265 VAC
Vout
auxiliary supply
300ns
C2
1.5V
-1.43x
OTA3
2.5V
ISENSE
GATE
VSENSE
VCC
FREQ
C1
VCOMP
OTA2
ICOMP
4.0V
Fault
UVLO
VCC
0.8V
GND
PWM
Comparator
Ramp Generator
Variable Oscillator
Toff min
Over-current
Comparator
Deglitcher
PWM Logic Gate Driver
undervoltage lockout
open-loop protect
Voltage Loop
Current Loop
Compensation
Protection Block
2.5V
output uv protect
Peak Current Limit
Current Loop
Nonlinear
Gain
C3
C4
OTA1
5V
+/-30uA, 42uS
1.1mS
+/-50uA linear range
R1
R5
L1
C2
R3
R4
C3
C5
C4
R6
R2
S2
Vin
D1
Fault
4.75V 5.25V
0.73 V
0
-ve
Window Detect
+ve
0
-ve
Soft Over
Current Control
4.0V
S1
Fault
Soft Start
OP1
Current Sense
Opamp
OSC CLK
250ns
R
S
R
S
Protection
Logic
C1
RFI Filter
D2 ... D5
R7
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

ICE1PCS01G

Mfr. #:
Buy ICE1PCS01G
Manufacturer:
Infineon Technologies
Description:
Power Factor Correction - PFC STANDALONE PFC CTRLR CCM BRN-OUT PROTECT
Lifecycle:
New from this manufacturer.
Delivery:
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