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PDF CR6228 Data sheet ( Hoja de datos )
| Número de pieza | CR6228 | |
| Descripción | (CR6221 - CR6229) Green-Power Current Mode PWM Power Switch | |
| Fabricantes | Chip-Rail | |
| 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 10 Páginas | ||
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CR622X—CR6221/6224/6228/6229
Green-Power Current Mode PWM Power Switch
Feature
z Power on Soft Start Reducing MOSFET Vds
Stress
z Frequency shuffling for EMI
z Burst Mode Control For Improved Efficiency
and Minimum Standby power Design
z Audio Noise Free Operation
z Normal 50 KHz Switching Frequency
z Internal Synchronized Slope Compensation
z Low VDD Startup Current and Low Operating
Current
z Leading Edge Blanking on Current Sense
Input
z Pb-Free SOP-8L& DIP-8L
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
Over-current Threshold Setting For
Constant Output Power Limiting Over
Universal Input Voltage Range
¾ Overload Protection (OLP)
¾ Over Voltage Protection (OVP)
Applications
z Battery Charger
z Digital Cameras and camcorder Adaptor
z VCR, SVR, STB, DVD & DVCD Player SMPS
z Set-Top Box (STB) Power
z Auxiliary Power Supply for PC and Server
z Open-frame SMPS
General Description
CR622X 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 24W range.
CR622X 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.
CR622X is offered in DIP-8L & SOP-8L package.
Nov, 2009 V2.2
1/10
Free Datasheet http://www.datasheet4u.com/
1 page  
CR622X
Green-Power Current Mode PWM Power Switch
output start to turn off
VTH_OC
Internal Current Limiting
FB=3.3V
Threshold Voltage
Oscillator
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
CR6221T
RDS(on)
Static Drain to Source On VGS=10V,
Resistance
IDS=1A
CR6224S
CR6224T
CR6228T
CR6229T
Frequency Shuffling
△f_SOC
Frequency Modulation range
/Base frequency
0.76 0.8 0.82
45 50 55
5
5
70 80 90
22
620 650
12 15
5.0 5.8
5.0 5.8
3.0 3.6
2.0 2.5
-4 4
V
KHz
%
%
%
KHz
V
Ω
Ω
Ω
Ω
Ω
%
Nov, 2009 V2.2
5/10
Free Datasheet http://www.datasheet4u.com/
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet CR6228.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| CR6221 | (CR6221 - CR6229) Green-Power Current Mode PWM Power Switch | Chip-Rail |
| CR6224 | (CR6221 - CR6229) Green-Power Current Mode PWM Power Switch | Chip-Rail |
| CR6228 | SMPS |  Power-Rail |
| CR6228 | Current Mode PWM Power Switch |  SINOPEX |
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