Current Mode PWM Controller - SDC
Description
Datasheet
Current Mode PWM Controller General Description
SDC606 is a high-performance current mode control IC designed for AC/DC convertor, which supplies about continuous 12W output power at the universal AC input range from 85V to 265V.
SDC606 Features
Built-in oscillator Built-in high voltage power transistor of 700V High voltage start-up Very low start-up and operating current Low standby power consumption Protections: OVP, UVLO, SCP, OLP and OTP Built-in high precise current limit with temperature compensation 12W and peak 15W output power at the universal AC input range 15W and peak 18W output power at AC input 220V Very few external components Package: DIP-8
Applications
Portable rechargeable power supply Appliance controller power supply Adaptor/charger for cell and other portable apparatus DVD/DVB power supply, ATX standby power supply
DIP-8
Figure 1.
Package Type
December, 2013 Rev.
1.
2 ©2013 Shaoxing Devechip Microelectronics Co.
, Ltd.
1/11 www.
sdc-semi.
com
Free Datasheet http://www.
datasheet4u.
com/
Datasheet
Current Mode PWM Controller Pin Configuration
Package: DIP-8
OB VCC GND NC 1 2 3 4 8 7 6 5 OC OC IS FB
SDC606
Figure 2.
Pin Configuration
Pin Number
1 2 3 4 5 6 7,8
Pin Name
OB VCC GND NC FB IS OC
Function
Startup current input, connecting to startup resistor Supply voltage pin Ground NC Feedback pin Cycle-by-cycle current limit, connecting a resistor to GND Output of HV transistor, connecting to primary wind of transformer Table 1.
Pin Description
December, 2013 Rev.
1.
2 ©2013 Shaoxing Devechip Microelectronics Co.
, Ltd.
2/11 www.
sdc-semi.
com
Free Datasheet http://www.
datasheet4u.
com/
Datasheet
Current Mode PWM Controller Functional Block Diagram
VCC STC VREF OLP OSC Dmax OB OC OC
SDC606
OVP
UVP 12V 3.
7V
DRVU
FB
2.
4V
FB COMP
OTP
CS COMP PWM
0.
625V
GND
IS
Figure 3.
Functional Block Diagram
December, 2013 Rev.
1.
2 ©2013 Shaoxing Devechip Microelectronics Co.
, Ltd.
3/11 www.
sdc-semi.
com
Fre...
Similar Datasheet