The SC4810B/E is a 16 pin BICMOS primary side PWM controller for use in Isolated DC-DC and off-line switching power supplies. It is a highly integrated solution, requiring few external components. It features a high frequency of operation, accurately programmable maximum duty cycle, current mode control, line voltage monitoring, supply UVLO, low start-up current, and programmable soft start with user accessible reference. It operates in a fixed frequency, highly desirable for Telecom applications.
Applications
◆ Telecom equipment and power supplies
◆ Networking power supplies
◆ Power over LAN applications
◆ Industrial power supplies
◆ Isolated power supplies
◆ VoIP phones
Feature
- Operation to 1 MHz
- Accurate programmable maximum duty cycle
- Line voltage monitoring
- External frequency synchronization
- Bi-phase mode of operation for low ripple
- Independent programmable delays
- Hiccup-mode current limit
- Under 250 µA start-up current
- Programmable maximum volt-second clamp
- Accessible reference voltage
- VDD under-voltage lockout
- -40°C to 105°C operating temperature
- 16 lead TSSOP or MLPQ lead free packages. Both fully WEEE and RoHS compliant
Applications
- Telecom equipment and power supplies
- Networking power supplies
- Power over LAN applications
- Industrial power supplies
- Isolated power supplies
- VoIP phones
Packaging
MLPQ-16, TSSOP-16
Order Codes
- SC4810BIMLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only (MLPQ-16)
- SC4810BITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only (TSSOP-16)
