PFS727EG Datasheet PDF - Power Integrations

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PFS727EG
Power Integrations

Part Number PFS727EG
Description (PFS704 - PFS729) High Power PFC Controller
Page 30 Pages


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PFS704-729EG
HiperPFSFamily
High Power PFC Controller with Integrated
High-Voltage MOSFET
Key Benefits
Single chip solution for boost power factor correction (PFC)
EN61000-3-2 Class C and D compliant
High light load efficiency at 10% and 20% load
>95% efficiency from 10% load to full load
<130 mW no-load consumption at 230 VAC with output in
regulation
<50 mW no-load consumption at 230 VAC in remote off state
Frequency adjusted over line voltage, and line cycle
Spread-spectrum across >60 kHz window to simplify EMI
filtering requirements
Lower boost inductance
Provides up to 1 kW peak output power
>1 kW peak power delivery in power limit voltage regulation
mode
High integration allows smaller form factor, higher power density
designs
Incorporates control, gate driver, and high-voltage power
MOSFET
Internal current sense reduces component count and system
losses
Protection features include: UV, OV, OTP, brown-in/out, cycle-
by-cycle current limit, and power limiting for overload protection
Halogen free and RoHS compliant
Applications
PC
Printer
LCD TV
Video game consoles
High power adaptors
High power LED lighting
Industrial and appliance
Generic PFC converters
Output Power Table
Product
Maximum Continuous
Output Power Rating at
90 VAC
Peak Output Power
Rating at 90 VAC
PFS704EG
110 W
120 W
PFS706EG
PFS708EG
PFS710EG
PFS712EG
PFS714EG
PFS716EG
140 W
190 W
240 W
300 W
350 W
388 W
150 W
205 W
260 W
320 W
385 W
425 W
Product
Maximum Continuous
Output Power Rating at
180 VAC
Peak Output Power
Rating at 180 VAC
PFS723EG
PFS724EG
PFS725EG
PFS726EG
PFS727EG
PFS728EG
PFS729EG
255 W
315 W
435 W
540 W
675 W
810 W
900 W
280 W
350 W
480 W
600 W
750 W
900 W
1000 W
Table 1. Output Power Table (see Notes on page 9)
+
VCC
DV
VCC
AC
IN
HiperPFS
CONTROL
FB
SG
DC
OUT
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Figure 1. Typical Application Schematic.
PI-6021-110810
December 2011
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PFS704-729EG
Section List
Description................................................................................................................................................................... 3
Product Highlights....................................................................................................................................................... 3
Pin Functional Description.......................................................................................................................................... 4
Pin Configuration....................................................................................................................................................... 4
Functional Block Diagram......................................................................................................................................... 4
Functional Description ................................................................................................................................................ 5
Output Power Table.................................................................................................................................................. 9
Application Example.............................................................................................................................................10-11
Design, Assembly, and Layout Considerations..................................................................................................... 12
Absolute Maximum Ratings...................................................................................................................................... 19
Parameter Table.................................................................................................................................................19-25
Typical Performance Characteristics....................................................................................................................... 26
Package Details ......................................................................................................................................................... 27
Part Ordering Information......................................................................................................................................... 28
Part Marking Information ......................................................................................................................................... 28
2
Rev. D 12/11
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PFS704-729EG
Description
The HiperPFS device family members incorporate a continuous
conduction mode (CCM) boost PFC controller, gate driver, and
high voltage power MOSFET in a single, low-profile eSIP™
power package that is able to provide near unity input power
factor. The HiperPFS devices eliminate the PFC converter’s
need for external current sense resistors, the power loss
associated with those components, and leverages an innovative
control technique that adjusts the switching frequency over
output load, input line voltage, and even input line cycle. This
control technique is designed to maximize efficiency over the
entire load range of the converter, particularly at light loads.
Additionally, this control technique significantly minimizes the
EMI filtering requirements due to its wide-bandwidth spread
spectrum effect. HiperPFS includes Power Integrations’
standard set of comprehensive protection features, such as
integrated soft-start, UV, OV, brown-in/out, and hysteretic thermal
shutdown. HiperPFS also provides cycle-by-cycle current limit
for the power MOSFET, power limiting of the output for over-
load protection, and pin-to-pin short-circuit protection.
HiperPFS’s innovative variable-frequency continuous conduction
mode of operation (VF-CCM) minimizes switching losses by
maintaining a low average switching frequency, while also
varying the switching frequency in order to suppress EMI, the
traditional challenge with continuous-conduction-mode
solutions. Systems using HiperPFS typically reduce the total X
and Y capacitance requirements of the converter, the inductance
of both the boost choke and EMI noise suppression chokes,
reducing overall system size and cost. Additionally, compared
with designs that use discrete MOSFETs and controllers,
HiperPFS devices dramatically reduce component count and
board footprint while simplifying system design and enhancing
reliability. The innovative variable-frequency, continuous
conduction mode controller enables the HiperPFS to realize all
of the benefits of continuous-conduction mode operation while
leveraging low-cost, small, simple EMI filters.
Many regions mandate high power factor for many electronic
products with high power requirements. These rules are
combined with numerous application-specific standards that
require high power supply efficiency across the entire load
range, from full load to as low as 10% load. High efficiency at
light load is a challenge for traditional PFC approaches in which
fixed MOSFET switching frequencies cause fixed switching
losses on each cycle, even at light loads. HiperPFS simplifies
compliance with new and emerging energy-efficiency standards
over a broad market space in applications such as PCs, LCD
TVs, notebooks, appliances, pumps, motors, fans, printers, and
LED lighting.
HiperPFS advanced power packaging technology and high
efficiency simplifies the complexity of mounting the package
and thermal management, while providing very high power
capabilities in a single compact package; these devices are
suitable for PFC applications from 75 W to 1 kW
Product Highlights
Protected Power Factor Correction Solution
Incorporates high-voltage power MOSFET, controller, and gate
driver
EN61000-3-2 Class D compliance
Integrated protection features reduce external component count
Accurate built-in brown-in/out protection
Accurate built-in undervoltage (UV) protection
Accurate built-in overvoltage (OV) protection
Hysteretic thermal shutdown (OTP)
Internal power limiting function for overload protection
Cycle-by-cycle power switch current limit
No external current sense required
Provides “lossless” internal sensing via sense-FET
Reduces component count and system losses
Minimizes high current gate drive loop area
Minimizes output overshoot and stresses during start-up
Integrated power limit and frequency soft start
Improve dynamic response
Input line feed-forward gain adjustment for constant loop
gain across entire input voltage range
Eliminates up to 40 discrete components for higher reliability
and lower cost
Intelligent Solution for High Efficiency and Low EMI
Continuous conduction mode PFC uses novel constant volt/
amp-second control engine
High efficiency across load using a UF boost diode
Low cost EMI filter
Universal input device (PFS704 – PFS716) utilize frequency
sliding technique for light load efficiency improvements
>95% efficiency from 10% load to full load at low line input
voltage
>96% efficiency from 10% load to full load at high line input
voltage
High line input device (PFS723 – PFS729) maintain higher
average switching frequency to minimize boost inductance
and core size
>94% efficiency from 10% load to full load
Variable switching frequency to simplify EMI filter design
Varies over line input voltage to maximize efficiency and
minimize EMI filter requirements
Varies with input line cycle voltage by >60 kHz to maximize
spread spectrum effect
Advanced Package for High Power Applications
Up to 1 kW peak output power capability in a highly compact
package
Simple clip mounting to heat sink
Can be directly connected to heat sink with insulation pad
Provides thermal impedance equivalent to a TO-220
Staggered pin arrangement for simple routing of board traces
and high voltage creepage requirements
Single package solution for PFC converter reduces assembly
costs and layout size
www.powerint.com
3
Rev. D 12/11
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PFS704-729EG
Pin Functional Description
VOLTAGE MONITOR (V) Pin:
The V pin is tied to the rectified AC rail through an external
resistor. Internal circuitry detects the peak of the input line
voltage which resembles a full-wave rectified waveform. The
rectified high-voltage bus is connected directly to the V pin
voltage through a large resistor (4 MW for PFS70x and PFS71x;
9 MW for PFS72x) to minimize power dissipation and standby
power consumption. A small ceramic capacitor (0.1 mF for
PFS70x and PFS71x; 0.047 mF for PFS72x) is required from the
VOLTAGE MONITOR pin to SIGNAL GROUND pin to bypass
any switching noise present on the rectified bus. This pin also
features both brown-in and brown-out protection.
FEEDBACK (FB) Pin:
The FEEDBACK pin is high input-impedance reference terminal
that connects to a feedback resistor network. This pin will also
feature fast overvoltage and undervoltage detection circuitry
that will disengage the internal power MOSFET in the event of a
system fault. A 10 nF capacitor is required between the
FEEDBACK to SIGNAL GROUND pins; this capacitor must be
placed very close to the device on the PCB to bypass any
switching noise. This pin is also used for loop compensation.
BIAS POWER (VCC) Pin:
This is a 10-12 VDC bias supply used to power the IC. The bias
voltage must be externally clamped to prevent the VCC pin
from exceeding 13.4 VDC.
SIGNAL GROUND (G) Pin:
Discrete components used in the feedback circuit, including
loop compensation, decoupling capacitors for the supply (VCC)
and line-sense (V) must be referenced to the G pin. The
SIGNAL GROUND pin must not be tied to the SOURCE pin.
SOURCE (S) Pin:
This pin is the source connection of the power switch.
DRAIN (D) Pin:
This is the tab and drain connection of the internal power switch.
E Package (eSIP-7G)
Exposed Metal (On Edge)
Internally Connected
to GROUND Pin
Exposed Metal
(On Edge)
Internally
Connected to
DRAIN Pin
1 23 45 7
Figure 2. Pin Configuration.
7 54 32 1
Exposed Pad
(Backside)
Internally
Connected to
DRAIN Pin
(see eSIP-7G
Package
Drawing)
PI-5334-083110
VOLTAGE MONITOR (V)
BIAS POWER (VCC)
INPUT
LINE INTERFACE
Peak
Detector
INTERNAL
SUPPLY
+
- VCC+
MON IVPK
Input UV
(IUV-/IUV+)
“Off-time derived with
6 V Input Voltage
Emulation
+
constant Volt-Sec
VO-VIN
- CINT
7 kHz
Filter
oVpOeFFraitsinagffurnecqtuioenncoyf tahseaefruronrc-tvioonltaogfeo(uVtpEu) tapnodwiserufsoerdintcorereadsuecdeetfhfieciaevnecryage
(PFS704-716).
(VOFF = 0.8 V for PFS723-729).
IVPK
Frequency
Slide
FEEDBACK (FB)
Internal
Reference
Transconductance
Error-Amplifier
VREF
+
1 kHz
Filter
-
VE
MseOnNsies
the switch current
scale factor which
is function of peak line
FBOV
+
- Fast OV
FFBBOUFVF/
Comparator
+
voltage derived from IVIN
MON IS
- UV Comparator
VOFF
Comparator
-
+
Latch
VE
Comparator
+
-
TIMER
SUPERVISOR
Input UV
FBOV/UV
OTP
The
internal derived error-voltage
regulates the output voltage
(VE)
CINT
SIGNAL GROUND (G)
Figure 3. Functional Block Diagram.
4
Rev. D 12/11
DRAIN (D)
OTP
SOFT
START
VCC
Sense
FET
Driver
LEB
IS
Power
MOSFET
OCP
+
-
IOCP
SOURCE (S)
PI-5333-113010
www.powerint.com
Free Datasheet http://www.datasheet4u.com/



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PFS727EG (PFS704 - PFS729) High Power PFC Controller PFS727EG
Power Integrations
PFS727EG pdf

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