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Onsemi NCP10970 | Demoboard NCP10970AGEVB
Dual Output PSU for HV Input Evaluation Board User's Manual
Overview
| Topology | Buck Converter |
| Input voltage | 440 V |
| Output 1 | 15 V / 0.15 A |
Description
The NCP10970AGEVB evaluation board is a non−isolated buck topology converter which provides adjustable output voltage up to 16 V and fixed linear output voltage 3.3 V. Input voltage range is from ~30 Vrms up to 440 Vrms. The board is also ready for DC input voltage up to 620 V. Nominal output current of the board is 150 mA. This current is divided between switcher output and LDO output, i.e. when LDO provides 100 mA of output current, there is 50 mA on switcher output. The NCP10970A1 is SOIC−16 power management IC combines HV switcher, LDO, internal circuitry for creating the input voltage for LDO in very effective way and internal comparator circuitry. The switcher works in a DCM mode for better efficiency, EMI and surge robustness. To ensure low no−load standby power and good efficiency at light load, the device is equipped with a skip mode operation. A dedicated comparator circuitry provides a means to instruct the external control section that an over−temperature or over−current point has been reached. The comparator input is biased by a precise constant current source and output is an open−drain type. The speed of comparator is driven by a voltage value on STBY pin.
Features
- Wide Input Voltage Range up to 440 Vrms
- Adjustable Output Voltage up to 16 V
- Fixed Linear Output Voltage 3.3 V
- High Efficiency
- Complies with CoC5 Tier2
- Low EMI Emissions
- Over−Current Protection
- Over−Voltage Protection
- Internal TSD Protection
- Integrated Comparator
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | Packaging | ISAT(A) | fres(MHz) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Ø D(mm) | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | VRMS(V) | VDC(V) | VBR(V) | IPeak(A) | Wmax(J) | PDiss(W) | VDE Approval | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-VD Disk Varistor, 400 VAC, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-VD Disk Varistor | – | – | – | – | – | – | – | – | – | – | – | – | – | Diameter9 mm | – | – | – | – | – | – | Length9 mm | Width5.4 mm | Height13 mm | MountTHT | AC Operating Voltage460 V | DC Operating Voltage615 V | (Reverse) Breakdown Voltage750 V | (Reverse) Peak Pulse Current1750 A | Energy Absorption58 J | Power Dissipation0.25 W | VDE ApprovalYes | ||||
 | WCAP-FTX2 Film Capacitors, Across the mains, 220 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTX2 Film Capacitors | Capacitance220 nF | Safety ClassX2 | Rate of Voltage Rise300 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch10 mm | PackagingBulk | – | – | – | – | – | – | – | – | – | – | Rated Voltage275 V (AC) | – | – | Length13 mm | Width8 mm | Height14 mm | MountBoxed THT | – | – | – | – | – | – | – | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current0.7 A | Inductance10 mH | DC Resistance350 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15 mm | Width7.5 mm | Height18 mm | MountTHT | – | – | – | – | – | – | VDE Approval40042670 | ||||
 | WE-PD HV SMT Power Inductor (High Voltage), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD HV SMT Power Inductor (High Voltage) | – | – | – | – | – | – | – | Saturation Current0.55 A | Self Resonant Frequency1.7 MHz | – | – | – | – | – | Rated Current0.4 A | Inductance1 mH | DC Resistance3200 mΩ | – | – | – | Length10 mm | Width10 mm | Height6 mm | MountSMT | – | – | – | – | – | – | – | ||||
 | WE-TI HV Radial Leaded Wire Wound Inductor (High Voltage), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | – | – | – | – | – | – | – | Saturation Current0.55 A | Self Resonant Frequency1.8 MHz | – | – | – | – | – | Rated Current0.5 A | Inductance1 mH | DC Resistance2080 mΩ | – | – | MaterialNiZn | Length7.8 mm | Width7.8 mm | Height9.5 mm | MountTHT | – | – | – | – | – | – | – | |||||
 | WCAP-ATG5 Aluminum Electrolytic Capacitors, –, 10 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors | Capacitance10 µF | – | – | – | – | Pitch5 mm | PackagingAmmopack | – | – | Endurance 2000 | Ripple Current104 mA | Leakage Current120 µA | Dissipation Factor15 % | Diameter10 mm | – | – | – | Rated Voltage400 V (AC) | – | – | Length14 mm | – | – | – | – | – | – | – | – | – | – | ||||
 | WCAP-ATLI Aluminum Electrolytic Capacitors, –, 100 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATLI Aluminum Electrolytic Capacitors | Capacitance100 µF | – | – | – | – | Pitch2.5 mm | PackagingAmmopack | – | – | Endurance 2000 | Ripple Current410 mA | Leakage Current25 µA | Dissipation Factor10 % | Diameter6.3 mm | – | – | – | Rated Voltage25 V (AC) | – | – | Length11 mm | – | – | – | – | – | – | – | – | – | – |