NCP1910B65DWR2G PFC IC Continuous Conduction (CCM) 245kHz 24-SOICHoused in a SO−24WB package, the NCP1910 combines a
state-of-the-art circuitry aimed to powering next generation of ATX
or flat TVs converters. With a 65 or 100 kHz Continuous Conduction
Mode Power Factor Controller and a LLC controller hosting a
high-voltage driver, the NCP1910 is ready to power 85+ types of
offline power supplies. To satisfy stringent efficiency
considerations, the PFC circuit implements an adjustable frequency
fold back to reduce switching losses as the load is going light. To
cope with all the signal sequencing required by the ATX and flat
TVs specifications, the controller includes several dedicated pins
enabling handshake between the secondary and the primary sides.
These signals include a power-good line but also a control pin
which turns the controller on and off via an opto coupler.
Safety-wise, a second OVP input offers the necessary redundancy in
case the main feedback network would drift away. Finally, a fast
fault input immediately reacts in presence of an over current
condition by triggering an auto-recovery soft-start sequence. Features• Fixed-Frequency 65 or 100 kHz CCM Power Factor Controller• Average Current-Mode Control for Low Line Distortion• Dynamic Response Enhancer Reduces Bulk Undershoot• Independent Over Voltage Protection Sensing Pin with Latch-off
Capability• Adjustable Frequency Fold Back Improves Light Load Efficiency• Adjustable Line Brown-Out Protection with 50 ms Delay to Help
Meeting Hold-up Time Specifications• Programmable Over current Threshold Leads to an Optimized Sensing
Resistor• ±1 A peak Current Drive Capability• LLC Controller Operates from 25 kHz to 500 kHz• On Board 600 V High-Voltage Drivers• 1 A/0.5 A Sink/Source Capability• Minimum Frequency Precision Down to ±3% Over Temperature Range• Internally Fixed Dead-Time Value of 300 ns• Adjustable Soft-Start Sequence• Fast Fault Input with Soft-Start Trigger for Immediate
Auto-recovery Protection• On/Off Control Pin for Secondary-Based Remote Control• On-Board 5 V Reference Voltage for Precise Thresholds/Hysteresis
Adjustments• Power Good Output Management Signal• A Version with Dual Ground Pinout (No Skip), B Version with
Single Ground and Skip Operation for the LLC Controller• 20 V Operation• These are Pb-Free Devices Typical Applications• Multi Output ATX Power Supplies (A version)• Flat TVs Power Supplies (B version)
MARKING DIAGRAM
specification of NCP1910B65DWR2G | Category | Integrated Circuits (ICs)
Power Management (PMIC)
PFC (Power Factor Correction) | Product Status | | Mode | Continuous Conduction (CCM) | Frequency - Switching | | Current - Startup | | Mounting Type | | Package / Case | 24-SOIC (0.295", 7.50mm Width), 23 Leads | Supplier Device Package | |
ORIGINAL Our company ensures that each batch of products comes from the
original factory, and can provide original labels and professional
testing agency reports. PRICE We provide a variety of quotation channels, and sign the order
contract after negotiation. TRANSACTION After communication and agreement, we will guide you to arrange
payment. DELIVERY CYCLE Delivery on the same day, generally 5-12 working days, may be
slightly delayed during the epidemic, we will follow up the whole
process. TRANSPORT We will choose the appropriate transportation mode according to
your country. PACKAGING After communication with you, we will choose the appropriate
packaging method according to the weight of the goods to ensure the
safe delivery of the goods. |
