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PDF CR6228 Data sheet ( Hoja de datos )
| Número de pieza | CR6228 | |
| Descripción | Current Mode PWM Power Switch | |
| Fabricantes | SINOPEX | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CR6228 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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CR6228Tel:852 - 2348 8233 Fax: 852 - 2348 8030 E-mail: [email protected]
Current Mode PWM Power Switch
Feature
z Audio Noise Free Operation
z Fixed 50 KHz Switching Frequency
z Burst Mode Control For Improved Efficiency
and Minimum Standby power Design
z Internal Synchronized Slope Compensation
z Low VDD Startup Current and Low Operating
Current
z Leading Edge Blanking on Current Sense
Input
z Compatible with OB2358
z Pb-Free DIP-8L Package
z Good Protection Coverage With Auto
Self-Recovery
¾ VDD Over Voltage Clamp and Under
Voltage Lockout with Hysteresis (UVLO)
¾ Line Input Compensated Cycle-by-Cycle
current sense
¾ Overload Protection (OLP)
¾ Over Voltage Protection (OVP)
¾ Over Current Protection (OCP)
Applications
z AC/DC adaptor
z Set-Top Box (STB) Power
z Auxiliary Power Supply for PC and Server
z VCR, SVR, STB, DVD & DVCD Player SMPS
z Digital Cameras and camcorder Adaptor
z Open-frame SMPS
General Description
CR6228 combines a dedicated current mode PWM
controller with a high voltage power MOSFET. It is
optimized for high performance, low standby power,
and cost effective off-line flyback converter
applications in sub 27W range.
CR6228 offers complete protection coverage with
automatic self-recovery feature including
Cycle-by-Cycle current limiting (OCP), over load
protection (OLP), VDD over voltage clamp and
under voltage lockout (UVLO). Excellent EMI
performance is achieved with frequency shuffling
technique together with soft switching control at he
totem pole gate drive output.
The tone energy at below 20 KHz is minimized in
the design and audio noise is eliminated during
operation. CR6228 is offered in DIP-8L package.
Output Power Table
Product
230VAC ±15%
Open Frame1
85-265VAC
Open Frame1
CR6228 DIP-8L
27W
16W
Notes:
1. Maximum practical continuous power in an open frame design with sufficient drain pattern as a heat sink,
at 50℃ ambient.
Oct, 2008 V1.0
1/9
1 page  
CR6228
VTH_OC
Oscillator
Internal Current Limiting FB=3.3V
Threshold Voltage
Fosc Normal Oscillation Frequency
△f_Temp
Frequency
Stability
Temperature
△f_VDD
Frequency Voltage Stability
D_max
Maximum duty cycle
FB=3.3V, CS=0V
F_Burst
Burst Mode Base Frequency
Power MOSFET Section
BVdss
MOSFET Drain
Breakdown Voltage
Source
VGS=0V, IDS=250uA
RDS(on)
Static Drain to Source On
Resistance
VGS=10V, IDS=1A
Frequency
△f_VDD
Frequency
Modulation
range/Base frequency
0.72 0.77 0.82
V
45 50 55 KHz
5%
5%
70 80 90
%
22 KHz
600 650
V
1.5 5.0
Ω
-4 4 %
Oct, 2008 V1.0
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet CR6228.PDF ] | |
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