H H-V S Start- -Up C Co Curre ontro ent

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PF62
200A
A
H StartH-V
S
-Up C
Curre
ent-M
Mode
e PW
WM
Co
ontro
oller
Preliminary Specificationn Rev.P1
FEATUR
RES











GENERAL DESCRIP
PTION
Almost L
Lossless HV Start-UP
Externall Over Tempe
erature Prote
ection
Internal Slope Comp
pensation
VCC Ovver Voltage P
Protection
Open Lo
oop Protectio
on(80mS Delay)
Seconda
ary Rectifier Short Protecction
3mS Soft Start Time
Fixed Sw
witching Freq
quency (65KHz)
MI Emission
Frequen
ncy Spreading For Low EM
OUT Pin
n Soft Drive a
and Clamp F
Function
Driver C
Capability +40
00mA/-700mA
The PF62
200A is a fixe
ed frequency current−mod
de
P
PWM controlle
er. The HV p
pin of PF620
00A builds in a
high−voltage startup curre
ent source to
t replace th
he
exxternal startu
up resistor in order to red
duce the pow
wer
lo
oss of the sta
artup circuit. IIn addition, th
he PF6200A is
also with the ffunctions/pro
otections of a
adjustable ovver
vo
oltage protecction, slope compensatio
on, VCC ovver
vo
oltage prote
ection, ope
en loop prrotection an
nd
se
econdary re
ectifier shortt protection in a SOP-8
pa
ackage.
he high volta
age startup te
echnology an
nd
Due to th
th
he frequencyy linearly re
eduction me
echanism, th
he
P
PF6200A exh
hibits extreme
ely-low no lo
oad power losss
and high efficiiency especia
ally in light lo
oad condition
n.
APPLICA
ATIONS


LCD TV
V Power Supp
ply
General Switching P
Power Supplyy
TYPICAL
L APPLIC
CATION
Vac
90~270V
-
+
VDC
GND
HV
VCC
OUT
PF6200
0A
CS
PT
GND
www.powerfo
orest.com
PF6200A_DS_ P1
Aug. 2015
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