ICE3PCS02G [INFINEON]
Standalone Power Factor Correction (PFC) Controller in Continuous Conduction Mode (CCM); 单机功率因数校正( PFC )控制器在连续导通模式( CCM )型号: | ICE3PCS02G |
厂家: | Infineon |
描述: | Standalone Power Factor Correction (PFC) Controller in Continuous Conduction Mode (CCM) |
文件: | 总20页 (文件大小:438K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Version 2.0, 5 May 2010
CCM-PFC
ICE3PCS02G
Standalone Power Factor
Correction (PFC) Controller in
Continuous Conduction Mode
(CCM)
Power Management & Supply
CCM-PFC
Revision History:
Datasheet
Edition 2010-05-05
Published by
Infineon Technologies AG
81726 Munich, Germany
© Infineon Technologies AG 05/05/10.
All Rights Reserved.
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characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
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be endangered.
CCM-PFC
ICE3PCS02G
Standalone Power Factor Correction
(PFC) Controller in Continuous
Conduction Mode (CCM)
Product Highlights
•
•
•
•
•
•
•
High efficiency over the whole load range
Lowest count of external components
Accurate and adjustable switching frequency
Integrated digital voltage loop compensation
Fast output dynamic response during load jump
External synchronization
ICE3PCS02G
PG-DSO-8
Low peak current limitation
Features
Description
•
•
•
Continuous current operation mode PFC
Wide input range of Vcc up to 25V
The ICE3PCS02G is a 8-pins wide input range controller
IC for active power factor correction converters. It is de-
Enhanced dynamic response without input current signed for converters in boost topology, and requires few
distortion
external components. Its power supply is recommended to
•
External current loop compensation for greater be provided by an external auxiliary supply which will
user flexibility
switch on and off the IC.
•
•
•
Open loop protection
Second over bulk voltage protection
Maximum duty cycle of 95% (typical)
DBYP
DB
LBoost
RGATE
RBVS
RBVS 4
1
Line
Filter
CB
90 ~ 270 Vac
CE
RGS
RBVS
RBVS 5
2
3
RSHUNT
RBVS
RBVS 6
RCS
ISENSE
GND
GATE
VSENSE
OVP
FREQ
ICOMP VCC
VCC
RFREQ
CVCC
CICOMP
Type
Package
ICE3PCS02G
PG-DSO-8
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CCM-PFC
ICE3PCS02G
1
Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1
1.2
2
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Frequency Setting and External Synchronization . . . . . . . . . . . . . . . . . . . . .8
Frequency Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
External Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Voltage Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Notch Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Voltage Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Average Current Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Complete Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Current Loop Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Pulse Width Modulation (PWM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
PWM Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
System Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Peak Current Limit (PCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Open Loop Protection (OLP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
First Over-Voltage Protection (OVP1) . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Second Over Voltage Protection (OVP2) . . . . . . . . . . . . . . . . . . . . . . . .12
Output Gate Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Protection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.1
3.2
3.3
3.4
3.4.1
3.4.2
3.5
3.5.1
3.5.2
3.6
3.6.1
3.6.2
3.6.3
3.7
3.8
3.8.1
3.8.2
3.8.3
3.8.4
3.9
3.10
4
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Variable Frequency Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
External Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
System Protection Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Current Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Voltage Loop Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Driver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Gate Drive Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.1
4.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.3.8
4.3.9
5
Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Notes: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
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CCM-PFC
Preliminary Datasheet ICE3PCS02G
Pin Configuration and Functionality
1
Pin Configuration and Functionality
ratings. Therefore a series resistor (RCS) of around 50Ω
1.1
Pin Configuration
is recommended in order to limit this current into the IC.
GND (IC Ground)
Pin Symbol
Function
The ground potential of the IC.
1
2
3
4
5
6
7
8
ISENSE
GND
Current Sense Input
ICOMP (Current Loop Compensation)
IC Ground
Low pass filter and compensation of the current control
loop. The capacitor which is connected at this pin
integrates the output current of OTA6 and averages the
current sense signal.
ICOMP
FREQ
OVP
Current Loop Compensation
Switching Frequency Setting
Over Voltage Protection
VSENSE Bulk Voltage Sense
FREQ (Frequency Setting)
This pin allows the setting of the operating switching
frequency by connecting a resistor to ground. The
frequency range is from 21kHz to 250kHz.
VCC
IC Supply Voltage
Gate Drive
GATE
OVP
A resistive voltage divider from bulk voltage to GND
can set the over voltage protection threshold. This
additional OVP is able to ensure system safety
operation.
Package PG-DSO-8
VSENSE
VSENSE is connected via a resistive divider to the bulk
voltage. The voltage of VSENSE relative to GND
represents the output voltage. The bulk voltage is
monitored for voltage regulation, over voltage
protection and open loop protection.
ISENSE
GATE
VCC
GND
ICOMP
FREQ
P-DSO-8
VSENSE
OVP
VCC
VCC provides the power supply of the ground related
to IC section.
GATE
GATE is the output for driving the PFC MOSFET.Its
gate drive voltage is clamped at 15V (typically).
Figure 1 Pin Configuration (top view)
1.2
Pin Functionality
ISENSE (Current Sense Input)
The ISENSE Pin senses the voltage drop at the
external sense resistor (RSHUNT). 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 RSHUNT, driving currents out of
pin 1 which could be beyond the absolute maximum
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CCM-PFC
ICE3PCS02G
Block Diagram
2
Block Diagram
A functional block diagram is given in Figure 2. Note that the figure only shows the brief functional block and does
not represent the implementation of the IC.
Figure 2 Block Diagram
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CCM-PFC
ICE3PCS02G
Block Diagram
Table 1
Bill Of Material
Component
Rectifier Bridge
CE
LBoost
QB
DBYP
DB
CB
Rshunt
Cisense
RCS
Parameters
GBU8J
100nF/X2/275V
750uH
IPP60R199CP
MUR360
IDT04S60C
220µF/450V
60mΩ
1nF
50Ω
RGATE
RFREQ
CICOMP
RBVS1...2
RBVS3
RBVS4...5
RBVS6
3.3Ω
67kΩ
4.7nF/25V
1.5MΩ
18.85kΩ
2MΩ
23kΩ
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CCM-PFC
ICE3PCS02G
Functional Description
3
Functional
Description
VBULK
100%
95%
20%
3.1
General
VCC
The ICE3PCS02G is a 8-pins control IC for power
factor correction converters. It is suitable for wide range
line input applications from 85 to 265 VAC with overall
efficiency above 90%. 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) resulting in a higher harmonics but still meeting
the Class D requirement of IEC 1000-3-2.
26V
12V
IVCC
<6.4mA
with 1nF external cap. at gate drive pin
3.5mA
1.4mA
Standby mode
(VVSENSE < 0.5V)
Bulk voltage rises to 95% rated value
within 200ms
Normal
UVLO
operation
Figure 3 State of Operation respect to VCC
3.3
Start-up
During power up when the Vout is less than 95% of the
rated level, internal voltage loop output increases from
initial voltage under the soft-start control. This results in
a controlled linear increase of the input current from 0A
thus reducing the stress in the external components.
Once Vout has reached 95% of the rated level, the soft-
start control is released to achieve good regulation and
dynamic response in normal operation.
The outer voltage loop controls the output bulk voltage,
integrated digitally within the IC. Depending on the load
condition, internal PI compensation output is converted
to an appropriate DC voltage 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.
3.4
Frequency Setting and External
Synchronization
3.2
Power Supply
The IC can provide external switching frequency
setting by an external resistor RFREQ and the online
synchronization by external pulse signal at FREQ pin.
An internal under voltage lockout (UVLO) block
monitors the VCC power supply. As soon as it exceeds
12.0V and voltage at pin 6 (VSENSE) >0.5V, the IC
begins operating its gate drive and performs its startup
as shown in Figure 3.
3.4.1
Frequency Setting
If VCC drops below 11V, the IC is off. The IC will then
be consuming typically 1.4mA, whereas consuming
6.4mA during normal operation
The switching frequency of the PFC converter can be
set with an external resistor RFREQ at FREQ pin as
shown Figure 2. The pin voltage at VFREQ is typical 1V.
The corresponding capacitor for the oscillator is
integrated in the device and the RFREQ/frequency is
given in Figure 4. The recommended operating
frequency range is from 21kHz to 250kHz. As an
example, a RFREQ of 67kΩ at pin FREQ will set a
switching frequency FSW of 65kHz typically.
The IC can be turned off and forced into standby mode
by pulling down the voltage at pin 6 (VSENSE) below
0.5V.
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CCM-PFC
ICE3PCS02G
Functional Description
3.5
Voltage Loop
Frequency vs Resistance
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
sigma-delta ADC which has an internal reference of
2.5V and sampling rate of 3.55kHz (typical). The
voltage loop compensation is integrated digitally for
better dynamic response and saving design effort.
Figure 6 shows the important blocks of this voltage
loop.
260
240
220
200
180
160
140
120
100
80
Resistance
/kohm
Frequency
/kHz
Resistance
/kohm
Frequency
/kHz
40
36
15
17
20
30
40
50
60
70
80
90
278
249
211
141
106
86
74
62
55
49
110
120
130
140
150
169
191
200
210
221
34
31.5
29.5
26.2
25
23
21.2
20.2
60
100
43
232
19.2
40
20
0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250
Resistance/kohm
LBoost
DB
RBVS1
Figure 4
3.4.2
Frequency Versus RFREQ
External Synchronization
QB
Rectified
RGATE
RBVS2
Input Voltage
CB
The switching frequency can be synchronized to the
external pulse signal after 6 external pulses delay once
the voltage at the FREQ pin is higher than 2.5V. The
synchronization means two points. Firstly, the PFC
switching frequency is tracking the external pulse
signal frequency. Secondly, the falling edge of the PFC
signal is triggered by the rising edge of the external
pulse signal. Figure 5 shows the blocks of frequency
setting and synchronization. The external RSYN
combined with RFREQ and the external diode DSYN can
ensure pin voltage to be kept between 1.0V (clamped
externally) and 5V (maximum pin voltage). If the
external pulse signal has disappeared longer than
108µs (typical) the switching frequency will be
synchronized to internal clock set by the external
RBVS3
Gate Driver
Current Loop
+
PWM Generation
GATE
VIN
Sigma-
delta
ADC
Nonlinear
Gain
Notch
Filter
PI Filter
Av(IIN
)
2.5V
VSENSE
t
500 ns
OLP
OVP
C2a
C1a
C1b
0.5V
2.5V
2.7V
OVP
Q
R
resistor RFREQ
.
Q
S
Syn. clock
IOSC
1. 0V
Figure 6
3.5.1
Voltage Loop
Notch Filter
DSYN
OTA7
In the PFC converter, an averaged current through the
output diode of rectified sine waveform charges the
output capacitor and results in a ripple voltage at the
output capacitor with a frequency two times of the line
frequency. In this digital PFC, a notch filter is used to
remove the ripple of the sensed output voltage while
keeping the rest of the signal almost uninfluenced. In
this way, an accurate and fast output voltage regulation
without influence of the output voltage ripple is
achieved.
RSYN
C9
SYN
R
FREQ
FREQ
2.5V/1.25V
Figure 5
Frequency Setting and
Synchronization
3.5.2
Voltage Loop Compensation
The Proportion-Integration (PI) compensation of the
voltage loop is integrated digitally inside the IC. The
digital data out of the PI compensator is converted to
analog voltage for current loop control.
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CCM-PFC
ICE3PCS02G
Functional Description
The nonlinear gain block controls the amplitude of the
regulated inductor current. The input of this block is the
LBoost
DB
output voltage of integrated PI compensator. This block
has been designed to reduce the voltage loop
dependency on the input voltage in order to support the
wide input voltage range (85VAC-265VAC). Figure 7
gives the relative output power transfer curve versus
the digital word from the integrated PI compensator.
The output power at the input voltage of 85VAC and
maximum digital word of 256 from PI compensator is
set as the normative power and the power curves at
different input voltage present the relative power to the
normative one.
QB
Rectified
RGATE
Input Voltage
CB
Rshunt
GATE
RCS
Current Loop
voltage
proportional to
averaged
Gate
Inductor current
Driver
ISENSE
ICOMP
Current Loop
Compensation
PWM
power at 85V
power at 265V
Comparator
Q
R
S
10.00000
1.00000
0.10000
0.01000
0.00100
0.00010
0.00001
C10
OTA6
5.0mS
PWM Logic
CICOMP
+/-50uA (linear range)
S2
5V
Input From
Nonlinear
Gain
Voltage Loop
Fault
Figure 8
3.6.2
Complete System Current Loop
Current Loop Compensation
0
18
37
55
73
91 110 128 146 165 183 201 219 238 256
The compensation of the current loop is implemented
at the ICOMP pin. This is OTA6 output and a capacitor
CICOMP has to be installed at this node to ground (see
Figure 8). Under normal mode of the operation, this pin
gives a voltage which is proportional to the averaged
inductor current. This pin is internally shorted to 5V in
the event of standby mode.
PI digital output
Figure 7
Power Transfer Curve
3.6
Average Current Control
The choke current is sensed through the voltage
across the shunt resistor and averaged by the ICOMP
pin capacitor so that the IC can control the choke
current to track the instant variation of the input voltage.
3.6.3
Pulse Width Modulation (PWM)
The IC employs an average current control scheme in
continuous mode (CCM) to achieve the power factor
correction. Assuming the loop voltage is working and
output voltage is kept constant, the off duty cycle DOFF
for a CCM PFC system is given as:
3.6.1
Complete Current Loop
The complete system current loop is shown in Figure 8.
It consists of the current loop block which averages the
voltage at ISENSE pin resulted from the inductor
current flowing across Rshunt. 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 C10 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.
DOFF=VIN/VOUT
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 9 shows the scheme to achieve the
objective.
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CCM-PFC
ICE3PCS02G
Functional Description
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 11.
Ramp Profile
Ave(Iin) at ICOMP
Current
Toff_min
limit Latch
600ns
R
S
Q
Q
High = turn on Gate
Peak current limit
Gate
Drive
t
PWM on
Latch
R
Q
Current loop
PWM on signal
Figure 9
Average Current Control in CCM
S
Q
The PWM is performed by the intersection of a ramp
signal with the averaged inductor current at pin 3
(ICOMP). The PWM cycles starts with the Gate turn off
for a duration of TOFFMIN (600ns typ.) and the ramp is
kept discharged. The ramp is allowed to rise after the
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
Figure 11
PWM LOGIC
3.8
System Protection
The IC provides numerous protection features in order
to ensure the PFC system in safe operation.
and the off duty cycle DOFF
.
Figure 10 shows the timing diagrams of the TOFFMIN and
3.8.1
Peak Current Limit (PCL)
the gate waveforms.
The IC provides a cycle by cycle peak current limitation
(PCL). It is active when the voltage at pin 1 (ISENSE)
reaches -0.4V. This voltage is amplified by a factor of -
2.5 and connected to comparator with a reference
voltage of 1.0V as shown in Figure 12. A deglitcher with
200ns after the comparator improves noise immunity to
the activation of this protection.
T
off_min 600 ns
Clock
PWM Cycle
(1 )
VC,ref
Vramp
Full-wave
rectifier
Ramp
Released
ISENSE
RCS
GATE
G=-2.5
200ns
AO2
PCL
t
Rshunt
Iin
C5
(1)
Vc,ref is a function of VICOMP
1V
Figure 10
Ramp and PWM waveforms
SGND
3.7
PWM Logic
The PWM logic block prioritizes the control input signal
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 65kHz of operation.
Figure 12 Peak Current Limit (PCL)
3.8.2 Open Loop Protection (OLP)
Whenever VSENSE voltage falls below 0.5V, 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. It is implemented using comparator
In case of high input currents which results in Peak
Current Limitation, the GATE will be turned off
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CCM-PFC
ICE3PCS02G
Functional Description
C2a with a threshold of 0.5V as shown in the IC block
diagram in Figure 6.
VCC
Reg (17V)
3.8.3
First Over-Voltage Protection (OVP1)
Whenever VOUT exceeds the rated value by 8%, the
over-voltage protection OVP1 is active as shown in
Figure 6. This is implemented by sensing the voltage at
VSENSE pin with respect to a reference voltage of
2.7V. A VSENSE voltage higher than 2.7V will
immediately turn off the gate, thereby preventing
damage to bus capacitor. After bulk voltage falls below
the rated value, gate drive resumes switching again.
Gate Driver
PWM Logic
HIGH to
turn on
LV
Z1
External
MOS
GATE
3.8.4
Second Over Voltage Protection (OVP2)
* LV: Level Shift
The second OVP is provided in case that the first one
fails due to the aging or incorrect resistors connected to
the VSENSE pin. This is implemented by sensing the
voltage at pin OVP with respect to a reference voltage
of 2.5V. When voltage at OVP pin is higher than 2.5V,
the IC will immediately turn off the gate, thereby
preventing damage to bus capacitor.
Figure 13 Gate Driver
When the bulk voltage drops out of the hysteresis the
IC will begin auto soft-start.
In normal operation the trigger level of second OVP
should be designed higher than the first OVP. However
in the condition of mains transient overshoot the bulk
voltage may be pulled up to the peak value of mains
that is higher than the threshold of OVP1 and OVP2. In
this case the OVP1 and OVP2 are triggered in the
same time the IC will shut down the gate drive until bulk
voltage falls out of the two protection hysteresis, then
resume the gate drive again.
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 13) 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.
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CCM-PFC
ICE3PCS02G
Functional Description
3.10
Protection Function
Description of Fault
Fault-Type Min. Duration Consequence
of Effect
Voltage at Pin ISENSE <
-400mV
PCL
200 ns
Gate Driver is turned off immediately during
current switching cycle
Voltage at Pin VSENSE < 0.5V OLP
1 µs
Power down. Soft-restart after VSENSE voltage
> 0.5V
Voltage at Pin VSENSE >
108% of rated level
OVP1
12 µs
12 µs
Gate Driver is turned off until VSENSE voltage <
2.5V.
Voltage at Pin OVP > 2.5V and OVP1 and
Voltage at Pin VSENSE >
108% of rated level
Gate Driver is turned off until bulk voltage drops
out of both OVP hysteresis
OVP2
Voltage at Pin OVP > 2.5V
OVP2
(auto-
restart
mode)
12 µs
Gate Driver is turned off. Soft-restart after OVP
voltage < 2.3V
Version 2.0
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CCM-PFC
ICE3PCS02G
Electrical Characteristics
4
Electrical Characteristics
All voltages are measured with respect to ground (pin 2). The voltage levels are valid if other ratings are not
violated.
4.1
Absolute Maximum Ratings
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 7 (VCC) is
discharged before assembling the application circuit.
Parameter
Symbol
Values
Typ.
Unit Note / Test Condition
Min.
-0.3
-0.3
Max.
26
VCC Supply Voltage
GATE Voltage
VVCC
V
VGATE
17
V
Clamped at 15V if
driven internally.
1)
ISENSE Voltage
ISENSE Current
VSENSE Voltage
VSENSE Current
ICOMP Voltage
VISENSE
IISENSE
VVSENSE
IVSENSE
VICOMP
VFREQ
VOVP
-20
-1
5.3
1
V
mA
V
-0.3
-1
5.3
1
mA
V
-0.3
-0.3
-0.3
-40
-55
5.3
5.3
5.3
150
150
185
260
2
FREQ Voltage
V
OVP Voltage
V
Junction Temperature
Storage Temperature
Thermal Resistance
Soldering Temperature
TJ
°C
°C
TA,STO
RTHJA
TSLD
K/W Junction to Air
°C Wave Soldering2)
kV Human Body Model3)
ESD Capability
VESD
1)
2)
3)
Absolute ISENSE current should not be exceeded
According to JESD22A111
According to EIA/JESD22-A114-B (discharging an 100 pF capacitor through an 1.5kΩ series resistor)
Version 2.0
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CCM-PFC
ICE3PCS02G
Electrical Characteristics
4.2
Operating Range
Note: Within the operating range the IC operates as described in the functional description.
Parameter
Symbol
Values
Typ.
Unit Note / Test Condition
Min.
VVCC,OFF
-25
Max.
25
VCC Supply Voltage @ 25°C
Junction Temperature
VVCC
TJ
V
TJ=25°C
125
250
°C
PFC switching frequency
FPFC
21
kHz
4.3
Characteristics
Note: The electrical Characteristics involve the spread of values given within the specified supply voltage and
junction temperature range TJ from -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 VVCC = 18V, a typical switching frequency
of ffreq=65kHz are assumed and the IC operates in active mode. Furthermore, all voltages are referring to
GND if not otherwise mentioned.
4.3.1
Supply Section
Parameter
Symbol
Limit Values
Unit Note/Test Condition
Min.
Typ.
Max.
VCC Turn-On Threshold
VCCon
11.5
12
12.9
11.9
1.45
V
V
V
VCC Turn-Off Threshold/
Under Voltage Lock Out
VCCUVLO
VCChy
10.5
11.0
1
VCC Turn-On/Off Hysteresis
0.7
Start Up Current
Before VCCon
ICCstart1
ICCstart2
ICCHG
-
-
380
1.4
6.4
3.5
680 µA
VCCon-1.2V
Start Up Current
Before VCCon
2.4
8.5
4.7
mA VCCon-0.2V
mA CL= 1nF
Operating Current with active GATE
-
Operating Current during Standby
ICCStdby
-
mA VVSENSE= 0.4V
V
ICOMP= 4V
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CCM-PFC
ICE3PCS02G
Electrical Characteristics
4.3.2
Variable Frequency Section
Parameter
Symbol
Limit Values
Unit Test Condition
Min.
Typ.
Max.
67.5 kHz R5 = 67kΩ
Switching Frequency (Typical)
Switching Frequency (Min.)
Switching Frequency (Max.)
Voltage at FREQ pin
FSWnom
FSWmin
FSWmax
VFREQ
Dmax
62.5
65
-
-
21
250
1
-
kHz R5 = 212kΩ
kHz R5 = 17kΩ
V
-
-
-
Max. Duty Cycle
93
95
98.5
%
fSW=fSWnom
(RFRE=67kΩ)
4.3.3
PWM Section
Parameter
Symbol
Limit Values
Unit Test Condition
Min.
Typ.
Max.
Min. Duty Cycle
Min. Off Time
DMIN
0
%
VVSENSE= 2.5V
ICOMP= 4.3V
V
TOFFMIN
310
600
920
ns
VVSENSE= 2.5V
ISENSE= 0V
(R5 = 67kΩ)
V
4.3.4
External Synchronization
Parameter
Symbol
Values
Typ.
2.5
Unit Note / Test Condition
Min.
Max.
150
Detection threshold of external clock
Synchronization range
Vthr_EXT
V
fEXT_range
50
kHz
Synchronization frequency ratio
fEXT:fPFC
1:1
propagation delay from rising edge of
external clock to falling edge of PFC
gate drive
TEXT2GATE
500
ns
%
fEXT=65kHz
Allowable external duty on time
TD_on
10
70
Version 2.0
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CCM-PFC
ICE3PCS02G
Electrical Characteristics
4.3.5
System Protection Section
Parameter
Symbol
Values
Typ.
2.7
Unit Note / Test Condition
Min.
Max.
Over Voltage Protection (OVP1) Low to VOVP1_L2H
High
2.65
2.77
V
V
108%VBULKRated
Over Voltage Protection (OVP1) High to VOVP1_H2L
Low
2.45
150
2.5
2.55
270
Over Voltage Protection (OVP1)
Hysteresis
VOVP1_HYS
200
mV
Blanking time for OVP1
TOVP1
12
µs
Over Voltage Protection (OVP2) Low to VOVP2_L2H
High
2.45
2.25
2.5
2.55
2.35
V
Over Voltage Protection (OVP2) High to IOVP2_H2L
Low
2.3
V
Blanking time for OVP2
TOVP2
12
0.5
5
µs
OVP2 mode detection threshold
VOVP2_mode
IOVP2_mode
V
comparator at VBTHL pin
Current source for OVP2 mode
detection1)
4
6
µA current source at VBTHL
pin
Peak Current Limitation (PCL) ISENSE VPCL
Threshold
-365
-400
-435 mV
Blanking time for PCL turn_on
TPCLon
200
ns
1)
The parameter is not subject to production test - verified by design/characterization
4.3.6
Current Loop Section
Parameter
Symbol
Values
Typ.
5.0
Unit Note / Test Condition
Min.
Max.
OTA6 Transconductance Gain
OTA6 Output Linear Range1)
GmOTA6
IOTA6
3.5
6.35
mS At Temp = 25°C
± 50
5.0
µA
ICOMP Voltage during OLP
VICOMPF
4.8
5.2
V
VVSENSE= 0.4V
1)
The parameter is not subject to production test - verified by design/characterization
4.3.7
Voltage Loop Section
Parameter
Symbol
Values
Typ.
2.5
Unit Note / Test Condition
Min.
2.47
0.45
Max.
2.53
0.55
Trimmed Reference Voltage
VVSREF
V
V
±1.2%
Open Loop Protection (OLP) VSENSE VVS_OLP
Threshold
0.5
VSENSE Input Bias Current
IVSENSE
-1
-
1
µA
VVSENSE= 2.5V
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CCM-PFC
ICE3PCS02G
Electrical Characteristics
4.3.8
Driver Section
Parameter
Symbol
Values
Typ.
-
Unit Note / Test Condition
Min.
Max.
GATE Low Voltage
VGATEL
-
1.2
V
VCC =10V
I
I
I
I
GATE = 5 mA
-
0.4
-
-
1.4
-
V
V
V
V
GATE = 0 A
-
GATE = 20 mA
GATE = -20 mA
-0.2
-
0.8
15
GATE High Voltage
VGATEH
-
V
CC = 25V
CL = 1nF
-
12.4
-
-
-
V
V
V
CC = 15V
CL = 1nF
8.0
V
CC = VVCCoff + 0.2V
CL = 1nF
4.3.9
Gate Drive Section
Parameter
Symbol
Values
Typ.
30
Unit Note / Test Condition
Min.
Max.
GATE Rise Time
GATE Fall Time
tr
tf
-
-
ns
ns
V
Gate = 20% - 80%
VGATEH CL = 1nF
-
25
-
V
Gate = 80% - 20%
VGATEH CL = 1nF
Version 2.0
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5 May 2010
CCM-PFC
ICE3PCS02G
Outline Dimension
5
Outline Dimension
PG-DSO-8 Outline Dimension
±0.08
0.33
x 45˚
1)
4-0.2
1.27
C
0.1
±0.25
0.64
+0.1
-0.05
0.41
M
0.2 A C x8
±0.2
6
8
1
5
Index
Marking
4
A
1)
5-0.2
Index Marking (Chamfer)
1) Does not include plastic or metal protrusion of 0.15 max. per side
Notes:
1. You can find all of our packages, sorts of packing and others in our Infineon
Internet Page “Products”: http://www.infineon.com/products.
2. Dimensions in mm.
Version 2.0
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5 May 2010
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 –
unsere Anstrengungen gelten
gleichermaßen der Lieferqualität und
Logistik, dem Service und Support
sowie allen sonstigen Beratungs- und
Betreuungsleistungen.
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.
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.
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.
Geisteshaltung unserer Mitarbeiter.
Total Quality im Denken und Handeln
gegenüber Kollegen, Lieferanten und
Ihnen, unserem Kunden. Unsere
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Published by Infineon Technologies AG
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