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PDF SDC4108 Data sheet ( Hoja de datos )
| Número de pieza | SDC4108 | |
| Descripción | Current Mode PWM Power Switch | |
| Fabricantes | SDC | |
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Current Mode PWM Power Switch
Datasheet
SDC4108
General Description
Features
SDC4108 combines a dedicated current mode PWM
Tcontroller with a high voltage power MOSFET. It is
optimized for high performance, low standby power, and
Ncost effective off-line flyback converter applications in
Esub 16W range.
MSDC4108 offers Complete protection coverage with
automatic self-recovery feature including cycle-by-cycle
Ucurrent limiting (OCP), over load protection (OLP), VDD
Cover voltage clamp and under voltage lockout (UVLO).
Excellent EMI performance is achieved with frequency
Oshuffling technique, together with soft switching control
Dat the totem pole gate drive output. The tone energy at
below 22kHz is minimized in the design and audio noise
CONFIDENTIALis eliminated during operation.
Power on soft start reducing MOSFET VDS stress
Frequency shuffling for EMI
Extended burst mode control for improved
efficiency and minimum standby power design
Audio noise free operation
Fixed 50kHz switching frequency
Internal synchronized slope compensation
Low VDD startup current and low operating current
Leading edge blanking on current sense input
Good protection coverage with auto self-recovery:
VDD over voltage clamp and under voltage lockout
with hysteresis (UVLO)
Line input compensated cycle-by-cycle over-current
threshold setting for constant output power
limiting over universal input voltage range
Over load protection (OLP)
Over voltage protection(OVP)
Applications
Battery charger
PDA power supplies
Digital cameras and camcorder adaptor
VCR, SVR, STB, DVD&DVCD player SMPS
Set-top box power
Auxiliary power supply for PC and server
Open-frame SMPS
SDC
DIP-8
Figure 1. Package Type
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
1/13
www.sdc-semi.com
1 page  
Current Mode PWM Power Switch
Datasheet
SDC4108
Absolute Maximum Ratings (NOTE: Stresses greater than those listed under Absolute Maximum Ratings may cause
permanent damage to the device.)
Parameter
TDRAIN voltage (off state)
VDD voltage
NVDD-G input voltage
VDD clamp continuous current
EFB input voltage
Sense input voltage
MOperating junction temperature TJ
Storage temperature TSTG
ULead temperature (soldering,10s)
CLatch-up test per JEDEC 78
ESD,HBM model per Mil-Std-883H,Method 3015
OESD,MM model per JEDEC EIA/JESD22-A115
Symbol
Bvdss
V dd
V dd-G
I VDD-Clamp
V FB
V SENSE
T JMAX
T STG
T LEAD
-
HBM
MM
Value
-0.3~600
-0.3~30
-0.3~30
10
-0.3~7
-0.3~7
150
-55~150
260
200
2000
200
DTable 3. Absolute Maximum Ratings
LRecommended Operating Conditions
Parameter
IADRAIN voltage (off state)
VDD voltage
TMaximum Operating Frequency
Operating Temperature Range
Symbol Min Max
Bvdss
- 600
VDD 10 25
fosc 50
TOP -40 85
CONFIDENTable 4. Recommended Operating Conditions
Unit
V
V
V
mA
V
V
°C
°C
°C
mA
V
V
Unit
V
V
KHz
℃
SDC
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
5/13
www.sdc-semi.com
5 Page 
Current Mode PWM Power Switch
Datasheet
SDC4108
Typical Application
ENTVDD-G GND
MVDD GND
UFB DRAIN
CSENSE DRAIN
OSDC4108
CONFIDENTIAL DFigure 11. Typical Application
V+
GND
SDC
December, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
11/13
www.sdc-semi.com
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet SDC4108.PDF ] | |
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