SpecificationsProductProduct statusEco StatusPricing*Package typeLeadsPacking methodPackage DrawingPackage Marking Convention**FAN4800INFull ProductionRoHS Compliant$2.57DIP16RAIL N16ALine 1: $Y (Fairchild logo)&Z (Asm. Plant Code)&4 (4-Digit Date Code)&K Line 2: FAN4800IN * Fa...
FAN4800I: SpecificationsProductProduct statusEco StatusPricing*Package typeLeadsPacking methodPackage DrawingPackage Marking Convention**FAN4800INFull ProductionRoHS Compliant$2.57DIP16RAIL N16ALine 1: $Y (...
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Product | Product status | Eco Status | Pricing* | Package type | Leads | Packing method | Package Drawing | Package Marking Convention** |
---|---|---|---|---|---|---|---|---|
FAN4800IN | Full Production | RoHS Compliant | $2.57 | DIP | 16 | RAIL | N16A | Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &4 (4-Digit Date Code) &K Line 2: FAN4800IN |
* Fairchild 1,000 piece Budgetary Pricing |
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples |
Package marking information for product FAN4800I is available. Click here for more information . |
The FAN4800 is a controller for power-factor-corrected, switched-mode power supplies. Power Factor Correction (PFC) allows the use of smaller, lower-cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully complies with IEC-1000-3-2 specifications. Intended as a BiCMOS version of the industry-standard ML4800, the FAN4800 includes circuits for the implementation of leading edge, average current, boost-type power factor correction, and a trailing-edge Pulse Width Modulator (PWM). A gate driver with 1A capabilities minimizes the need for external driver circuits. Low-power requirements improve efficiency and reduce component costs.
An over-voltage comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting and input voltage brownout protection. The PWM section can be operated in current or voltage mode, at up to 250kHz, and includes an accurate 50% duty cycle limit to prevent transformer saturation.
The FAN4800 includes a folded-back current limit for the PWM section to provide short-circuit protection.