Position: Home  > All Categories> Integrated Circuits (ICs) > FAN4803

FAN4803

Features: • Internally synchronized PFC and PWM in one 8-pin IC• Patented one-pin voltage error amplifier with advanced input current shaping technique• Peak or average current, continuous boost, leading edge PFC (Input Current Shaping Technology)• High efficien...

product image

FAN4803 Picture
See larger image
SeekIC No. : 004340368 Detail

FAN4803: Features: • Internally synchronized PFC and PWM in one 8-pin IC• Patented one-pin voltage error amplifier with advanced input current shaping technique• Peak or average curre...

FAN4803 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
FAN4803
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/11/20

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

• Internally synchronized PFC and PWM in one 8-pin IC
• Patented one-pin voltage error amplifier with advanced  input current shaping technique
• Peak or average current, continuous boost, leading edge PFC (Input Current Shaping Technology)
• High efficiency trailing-edge current mode PWM
• Low supply currents; start-up: 150µA typ., operating: 2mA typ.
• Synchronized leading and trailing edge modulation
• Reduces ripple current in the storage capacitor between the PFC and PWM sections
• Overvoltage, UVLO, and brownout protection
• PFC VCCOVP with PFC Soft Start


Pinout

Connection Diagram


Specifications

Parameter Min Max Unit
ICC Current (average)   40 mA
VCC MAX   18.3 V
ISENSE Voltage -5 1 V
Voltage on Any Other Pin GND 0.3 VCC+0.3 V
Peak PFC OUT Current, Source or Sink   1 A
Peak PWM OUT Current, Source or Sink   1 A
PFC OUT, PWM OUT Energy Per Cycle   1.5 µJ
Junction Temperature   150 °C
Storage Temperature Range -65° 150 °C
Lead Temperature (Soldering, 10 sec)   260 °C
Thermal Resistance (JA)
Plastic DIP
Plastic SOIC		   110
160		 °C/W
°C/W



Description

The FAN4803 is a space-saving controller for power factor corrected, switched mode power supplies that offers very low start-up and operating currents.

Power Factor Correction (PFC) offers the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply fully compli-ant to IEC1000-3-2 specifications. The FAN4803 includes circuits for the implementation of a leading edge, average  current "boost" type PFC and a trailing edge, PWM.

The FAN4803-1's PFC and PWM operate at the same frequency, 67kHz.  The PFC frequency of the FAN4803-2 is automatically set at half that of the 134kHz PWM.  This higher frequency allows the user to design with smaller PWM components while maintaining the optimum operating frequency for the PFC. An overvoltage comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting for enhanced system reliability.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Switches
US32DMRJ
HBGQ22P-11ET
Resistors
A101G
3006P-1-205LF
Line Protection, Backups
BX0023
A20B-1008-0550
Memory Cards, Modules
WT32
VTL5C7
Batteries, Chargers, Holders
ICR18650-28A
ICR18650-26F/h
Soldering, Desoldering, Rework Products
TGK-900M-B
TGK-900M-1.6D
View more