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PDF PFS7324L Data sheet ( Hoja de datos )
| Número de pieza | PFS7324L | |
| Descripción | (PFS7323 - PFS7329) High Power PFC Controller | |
| Fabricantes | Power Integrations | |
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PFS7323-7329
HiperPFS™-2 Family
High Power PFC Controller with Integrated
High-Voltage MOSFET and Qspeed™ Diode
Key Benefits
• Highly integrated for smallest boost PFC form factor
• Integrated controller and MOSFET in all package options
• Ultra-low reverse recovery loss diode (Qspeed) included in
extended eSIP™ package option
• Lossless internal current sense reduces component count
and system losses
• EN61000-3-2 Class C and D compliant
• Packaging optimized for high volume production
• Exposed pad connected to GROUND pin (CoolPAD)
• Eliminates insulating pad/heat-spreader
• Enhanced features
• Programmable power good (PG) signal
• User selectable power limit: Enables device swapping in a
given design to optimize efficiency/cost
• Integrated non-linear amplifier for fast output OV and UV
protection
• High efficiency and power factor across load range
• >95% efficiency from 10% load to full load
• <200 mW no-load consumption at 230 VAC in remote off-state
• Light load PF >0.9 at 20% load on optimized designs >200 W
• PF >0.95 at 50% load
• Enables 80+ Platinum designs
• Frequency adjusted over line voltage and each line cycle
• Spread-spectrum across >60 kHz window simplifies EMI
filtering requirements
• Lower boost inductance
• Provides up to 425 W peak output power
• >425 W peak power in power limit voltage regulation mode
Output Power Table
eSIP-16 Package
Product
Maximum Continuous
Output Power Rating at
90 VAC (in Full Mode)
Peak Output Power Rating
Full Mode
(R = 24.9 kW)
PFS7323L
PFS7324L
110 W
130 W
120 W
150 W
PFS7325L
185 W
205 W
PFS7326H
230 W
260 W
PFS7327H
290 W
320 W
PFS7328H
350 W
385 W
PFS7329H
380 W
425 W
Table 1. Output Power Table (See Table 2 on page 11 for Maximum Continuous
Output Power Ratings.)
• 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
DK
PG VCC
CONTROL
VCC
FB
AC
IN
HiperPFS-2
C
PGT
S VGR
+
DC
OUT
www.powerint.com
Figure 1. Typical Application Schematic.
PI-6691-050313
June 2013
Free Datasheet http://www.datasheet4u.com/
1 page  
PFS7323-7329
The relationship of (4) demonstrates that by controlling a
constant amp-second on-time and constant volt-second
off-time, the input current IIN is proportional to the input voltage
VIN, therefore providing the fundamental requirement of power
factor correction.
This control produces a continuous mode power switch current
waveform that varies both in frequency and peak current value
across a line half-cycle to produce an input current proportional
to the input voltage.
VE
Latch
RESET
Latch
SET
Gate
Drive (Q)
Maximum
ON-time
Minimum
OFF-time
VOFF
IS dt
(VOUT-VIN)dt
Timing
Supervisor
the VOLTAGE MONITOR pin resistor also affects power limit of
the device.
This characteristic is optimized to maintain a relatively constant
internal error-voltage level at full load from an input line of 100 to
230 VAC input.
Beyond the specified peak power rating of the device, the
internal power limit feature will regulate the output voltage below
the set regulation threshold as a function of output overload
beyond the peak power rating. Figure 5 illustrates the typical
regulation characteristic as function of load.
1.2
1
0.8
0.6
0.4
0.2
Figure 4. Idealized Converter Waveforms.
Control Engine
The controller features a low bandwidth error-amplifier which
connects its non-inverting terminal to an internal voltage
reference of 6 V. The inverting terminal of the error-amplifier is
available on the external CONTROL pin which connects to the
loop compensation and voltage divider network to regulate the
output voltage. The FEEDBACK pin connects directly to the
divider network for fast transient load response.
The internal sense-FET switch current is integrated and scaled
bccyoycmtlhepeoairnne-pdtiumwt evit.ohltItnahtgeeerenprareollayr-ktahdmeeptdeliicffifeteorrrescnigucnreraebl n(eVttwEs)eetnoesndeethgteearinminp(iMnueOt Ntah)neadnd
output voltage is derived and the resultant is scaled, integrated,
and compared
cycle off-time.
Ctoaarevfuolltsaegleecrteiofenreonf cthee( VinOtFeF)rntoaldsectaelrimnginfeacthtoers
produce input current waveforms with very low distortion and
high power factor.
LThineeVFOeLeTdA-GFEorMwOarNdITSOcRal(iVng) pFinacctuorrre(nMt OisN)used internally to
derive the peak of the input line voltage which is used to scale
tThheisgcaoinntorfibtuhteiocnuirsrernetqsueirnesdetosigrendaul ctherothueghdythneamMicONravanrgiaebolef .the
control feedback signal as well as maintain a constant loop gain
over the operating input line range. This line-sense feed-
forward gain adjustment is proportional to the square of the
peak rectified AC line voltage and is adjusted as a function of
VOLTAGE MONITOR pin current. The line-sense feed-forward
gain is also important in providing a switch power limit over the
input line range. Besides modifying brown- in/out thresholds,
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4
Normalized to Peak Power Rating
Figure 5. Typical Normalized Output Voltage Characteristics as Function of
Normalized Peak Load Rating
Below the brown-in threshold (IUV+) the power limit is reduced
when the device is operated in the ‘Full’ power mode as shown
in the figure below.
1.2
1
0.8
0.6
0.4
0.2
0
70 75 80 85 90 95
Input Voltage (VAC)
Figure 6. Normalized Minimum Power Limit as Function of Input Voltage.
100
As the input line voltage is reduced toward the brown-out
threshold
the boost
(oIUuVt-)paunt dvoiflttahgeelowaidll
exceeds
drop out
the power limit
of regulation in
derating
accordance to Figure 6.
www.powerint.com
5
Rev. B 06/13
Free Datasheet http://www.datasheet4u.com/
5 Page 
PFS7323-7329
Hysteretic Thermal Shutdown
The thermal shutdown circuitry senses the controller die
temperature. The threshold is set at 117 °C typical with a 49 °C
hysteresis. When the die temperature rises above this threshold
(OTP) (117 °C +8/-7 °C), the controller initiates a fast soft-
shutdown and remains disabled until the die temperature falls
by ~49°C, at which point the device will re-initiate the soft-start
sequence.
In the event an OTP is detected when the VOLTAGE MONITOR
psoinftc-suhrruetdntoiwsnbealnodwreIUmV+athinredsishaobldle,dthuendtiel avilcl tehewiclloinnidtiiatitoenas for
the start-up (soft-start sequence) are satisfied. In this mode of
operation the OTP hysteresis is disabled.
When soft-shutdown is initiated by an over-temperature fault
(OTP) the brown-out timer delay (tBROWN-OUT) is disabled. The
behavior of OTP depends on the input voltage peak detected
following the thermal fault. If the input peak voltage detected
after the
however
tifhtehrempael faakuilnt pisubt evloolwtagIUeV+a, fOteTrPthheysthteerremsaisl
is disabled,
fault is above
IsUoV+ftt-hsetanr
the OTP hysteresis
t sequence.
is
enabled
prior
to
re-initiating
the
The maximum time delay for soft-shutdown to occur after an
OTP event is detected is tREFRESH.
In the event the input voltage is reduced below the brown-in
threshold and an OTP event occurs (no OTP hysteresis) and the
input voltage is raised immediately above brown-in before the
controller junction temperature falls below the OTP threshold,
the controller will initiate a soft-start once the controller junction
is just below the OTP threshold. Depending on the system
thermal conditions, the controller could initiate OTP shutdown
again because of insufficient time to cool down the controller.
The OTP shutdown that occurs when the input voltage is above
brown-in will have hysteresis enabled.
Output Power Table
eSIP Package
Product
Efficiency Power Mode R = 49.9 kW
Maximum Continuous
Output Power Rating at
90 VAC2
Peak Output Power
Rating at 90 VAC4
Minimum3
Maximum
Full Power Mode R = 24.9 kW
Maximum Continuous
Output Power Rating at
90 VAC2
Peak Output Power
Rating at 90 VAC4
Minimum3
Maximum
PFS7323L
60 W
80 W
90 W
85 W
110 W
120 W
PFS7324L
80 W
110 W
120 W
100 W
130 W
150 W
PFS7325L
110 W
150 W
165 W
140 W
185 W
205 W
PFS7326H
140 W
185 W
205 W
180 W
230 W
260 W
PFS7327H
175 W
230 W
255 W
220 W
290 W
320 W
PFS7328H
210 W
280 W
310 W
270 W
350 W
385 W
PFS7329H
235 W
320 W
345 W
293 W
380 W
425 W
Table 2. Output Power Table.
Notes:
1. See Key Application considerations.
2. Maximum practical continuous power at 90 VAC in an open-frame design with adequate heat sinking, measured at 50 °C ambient.
3. Recommended lower range of maximum continuous power for best light load efficiency; HiperPFS-2 will operate and perform below this level.
4. Internal output power limit.
www.powerint.com
11
Rev. B 06/13
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet PFS7324L.PDF ] | |
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