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Onsemi NCL30488 | Demoboard NCL30488 20 W SSR EVB AND90015
Secondary Side Regulated LED Driver with the NCL30488
Overview
| Topology | Flyback Converter |
| Input voltage | 85-277 V |
| Output 1 | 40 V / 0.5 A |
| IC revision | P1 |
Description
The NCL30488 [1] is a power factor corrected controller with primary side constant voltage (CV) and constant current (CC) control suitable for flyback, buck−boost or SEPIC converters. The NCL30488 is housed in an SOIC 8 package and targets high−performance LED drivers. These controller integrate a proprietary circuit for power factor correction and constant current control allowing to achieve a power factor above 0.9 and total harmonic distortion below 10% for universal mains input. This controller is normally primary side regulated, but the version (TBD) is compatible with secondary side regulation. In this version, the COMP pin features a pullup resistor to the internal reference voltage rail and allows directly connecting an optocoupler collector to the pin. The current−mode, quasi−resonant architecture of this controller optimizes the efficiency by turning on the MOSFET when the drain−source voltage is minimal (valley). The valley lockout and frequency foldback circuitry maintain high−efficiency performance in in light load during constant−voltage regulation.
Features
- High Voltage Startup
- Quasi−resonant Peak Current−mode Control Operation
- Primary Side Feedback
- CC / CV Accurate Control Vin up to 320 V rms
- Tight LED Constant Current Regulation of ±2% Typical
- Digital Power Factor Correction
- Cycle by Cycle Peak Current Limit
- Wide Operating VCC Range
- −40 to + 125°C
- Robust Protection Features
- Brown−Out
- OVP on VCC
- Constant Voltage / LED Open Circuit Protection
- Winding Short Circuit Protection
- Secondary Diode Short Protection
- Output Short Circuit Protection
- Thermal Shutdown
- Line over Voltage Protection
- This is a Pb−Free Device
Typical applications
- Integral LED Bulbs, LED Power Driver Supplies, LED Light Engines
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | Packaging | L (mH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | IR (A) | L1 (mH) | RDC max. (Ω) | VR (V (DC)) | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890303422005CS | SPEC | 8 files | WCAP-FTBE Film Capacitors | 47 nF | 100 | 1 | 9000 MΩ | -40 °C up to +85 °C | 7.5 | Carton | – | – | – | – | – | THT | – | – | – | 630 | – | – | 10.5 | 6 | 12 | – | – | – | – | – | – | – | – | ||
 | 7446622002 | SPEC | 8 files | WE-LF Common Mode Power Line Choke | – | – | – | – | -40 °C up to +125 °C | – | – | 2.2 | 2 | – | 0.1 | – | THT | 2 | 2.2 | 0.1 | 250 | 1500 | MnZn | 18 | 18 | 13 | THT | – | – | – | – | – | – | 40042531 | ||
 | 820474211 | SPEC | 6 files | WE-VD Disk Varistor | – | – | – | – | -40 °C up to +85 °C | – | – | – | – | – | – | – | THT | – | – | – | – | – | – | 9 | 5.1 | 13 | THT | 420 | 560 | 680 | 1750 | 56 | 0.25 | Yes | ||
 | 744779100 | SPEC | 8 files | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | – | 0.01 | 1.85 | 2.1 | 0.05 | 28 | Standard | – | – | – | – | – | – | 6 | 6 | 6.5 | THT | – | – | – | – | – | – | – | ||
| 750370980 | SPEC | – | – | Offline Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890303422005CS | SPEC | |
| 7446622002 | SPEC | |
| 820474211 | SPEC | |
| 744779100 | SPEC | |
| 750370980 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | C | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | Packaging | L (mH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | IR (A) | L1 (mH) | RDC max. (Ω) | VR (V (DC)) | 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 |
|---|