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Overview
| Topology | Power Factor Correction |
| Input voltage | 110-230 V |
| Switching frequency | 26 kHz |
| Output 1 | 12 V / 20 A |
Description
The NCP1615AIOGEVB Evaluation Board is a high voltage PFC controller designed to drive PFC boost stages based on an innovative Current Controlled Frequency Foldback (CCFF) method. In this mode, the circuit classically operates in critical conduction mode (CrM) when the inductor current exceeds a programmable value. When the current is below this preset level, the NCP1615AIOGEVB Evaluation Board linearly decays the frequency down to a minimum of about 26 kHz when the input current is zero. CCFF maximizes the efficiency at both nominal and light load. In particular, the standby losses are reduced to a minimum. An innovative circuitry allows near-unity power factor even when the switching frequency is reduced.
Features
- High Voltage Start−Up Circuit with Integrated Brownout Detection
- Input to Force Controller into Standby Mode
- Restart Pin Allows Adjustment of Bulk Voltage Hysteresis in Standby Mode
- Skip Mode Near the Line Zero Crossing
- Fast Line / Load Transient Compensation
- Valley Switching for Improved Efficiency
- High Drive Capability: −500 mA/+800 mA
- Wide VCC Range: from 9.5 V to 28 V
- Input Voltage Range Detection
- Input X2 Capacitor Discharge Circuitry
- Power Saving Mode (PSM) Enables < 30 mW No−load Power Consumption
- This is a Pb and Halogen Free Device
- Adjustable Bulk Undervoltage Detection (BUV)
- Soft Overvoltage Protection
- Line Overvoltage Protection
- Overcurrent Protection
- Open Pin Protection for FB and FOVP/BUV Pins
- Internal Thermal Shutdown
- Bi−Level Latch Input for OVP and OTP
- Bypass/Boost Diode Short Circuit Protection
- Open Ground Pin Protection
Typical applications
- LED Drivers
- Flat TVs
- PC Power Supplies
- Off Line Appliances Requiring Power Factor Correction
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR(V (AC)) | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | L(mm) | W(mm) | H(mm) | Packaging | Ø Cable max.(mm) | Ø OD(mm) | Ø ID(mm) | Z @ 25 MHz 1 turn(Ω) | Z @ 100 MHz 1 turn(Ω) | Material | VRMS(V) | VDC(V) | VBR(V) | IPeak(A) | Wmax(J) | PDiss(W) | VDE Approval | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-VD Disk Varistor, 230 VAC, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-VD Disk Varistor | – | – | – | – | – | – | – | Length12.5 mm | Width4.4 mm | Height16 mm | – | – | – | – | – | – | – | AC Operating Voltage275 V | DC Operating Voltage350 V | (Reverse) Breakdown Voltage430 V | (Reverse) Peak Pulse Current2500 A | Energy Absorption66 J | Power Dissipation0.4 W | VDE ApprovalYes | ||||
 | WCAP-FTXX Film Capacitors, Across the mains, 1 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance1 µF | Rated Voltage310 V (AC) | Safety ClassX2 | Rate of Voltage Rise170 V/µs | Dissipation Factor0.1 % | Insulation Resistance10 GΩ | Pitch22.5 mm | Length26 mm | Width11 mm | Height20 mm | PackagingBulk | – | – | – | – | – | – | – | – | – | – | – | – | – | ||||
 | WE-SAFB, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SAFB | – | – | – | – | – | – | – | Length9.8 mm | – | Height5.65 mm | – | Cable Diameter Max.3 mm | Outer Diameter5.65 mm | Inner Diameter3 mm | Impedance @ 25 MHz 1 turn53 Ω | Impedance @ 100 MHz 1 turn79 Ω | Material4 W 620 | – | – | – | – | – | – | – | ||||
750370249 | Power Inductor, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |