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PDF RM6222D Data sheet ( Hoja de datos )
| Número de pieza | RM6222D | |
| Descripción | PWM controller | |
| Fabricantes | Reactor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RM6222D (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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陕西亚成微电子有限责任公司 RM622X
GENERAL DESCRIPTION
RM622X combines a dedicated current
mode PWM controller with a high volt age
power MOSFET . It is o ptimized for high
performance,low standby power ,and cost
effective of f-line flyback converte r app-
lications in sub 20W range.
RM622X of fers co mplete protection
coverage w ith automatic self-recovery
feature inclu ding C ycle-by-Cycle current
limiting,over load pr otection,VDD over
voltage clamp and under volt age lockout.
Excellent EMI performance is achieved
with freque ncy shuf fling technique tog-
ether with sof t switching control at the
totem pole gate drive output.
The tone energy at below 20khz is
minimized in the design and audio nosie is
eliminated during ope ration.RM622X is
offered in DIP8 package.
FEATURES
Power on soft start reducing MOSFET
Vds stress.
Frequency shuffling for EMI
Extended B urst Mode control fo
r
improved e fficiency and minimum
standby power design
Audio noise free operation
Fixed 50Khz switching frequency
Internal synchronized slop
compensation
Low VDD st art-up curre nt and low
operationg current
LEB and current sense input
Good protec tion coverag e with auto
self-recovery
VDD over volt age clamp and under
voltage lockout with hysteresis
Input compensated Cycle-by-C ycle
over-current threshold setting for
constant output power li miting over
universal input voltage range.
Overlo ad protection
Over voltage protection
APPLICATIONS
Offline AC/DC flyback converter for
Battery charger
PDA power suppiles
Digital came ras and ca mcorder
adaptor
VCR,SVR,S TB,DVD&DVCD
Player SMPS
Set-Top Box power
Auxiliary power suppl y for PC
and server
Open-fr ame SMPS
http://www.Datasheet4U.com
1 page  
陕西亚成微电子有限责任公司 RM622X
ZSENSE_IN
Input Impedance
40 KΩ
TD_OC
Over Current Detection and
Control Delay
VTH_OC Internal Current Limiting
Threshold Voltage
From Over Current
120
Occurs till the Gate drive
output start to turn off
FB=3.3V
0.82 0.9 0.98
nS
V
Oscillator
Fosc
△f_Temp
△f_VDD
Normal Oscillation
Frequency Temperature
Stability
Frequency Voltage
D_max
Maximum duty cycle
F_Hiccup
Hiccup Mode Base
Power MOSFET Section
BVdss
MOSFET Drain Source
Breakdown Voltage
FB=3.3V, CS=0V
45 50 55 KHz
5%
5%
70 80 90 %
22 KHz
VGS=0V,
IDS=250uA
600
V
RDS(on)
Static Drain to Source On
Resistance
Frequency jitting
△f_SOC
Frequency Modulation
range Base frequency
VGS=10V, RM6221S
IDS=1A RM6222D
8.0 9.5
5.0 5.8
-4 4
Ω
Ω
%
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet RM6222D.PDF ] | |
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