NCL30188: Power Factor Corrected Quasi-Resonant Primary Side Current Mode Controller for LED Lighting
The NCL30188 is an Ac-Dc power factor corrected flyback controller targeting isolated and non−isolated buck-boost/SEPIC constant current LED drivers. The controller operates in a quasi−resonant mode to provide optimal efficiency. Thanks to a novel control method, the device is able to tightly regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler. The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. This device is specifically intended for very compact,
space efficient designs.
Features- Constant Current Control with Primary Side Feedback
- Precise Current Regulation Accuracy
- Power Factor Correction with low harmonic distortion
- Line Feedforward for Enhanced Regulation Accuracy
- Wide Vcc operating range
- User Programmable Thermal Foldback
- Latched and Auto-recoverable versions
- Secondary Diode Short Protection
- VCC Undervoltage and overvoltage protection
- Open and Shorted LED Protection
| Benefits- No Optocoupler or secondary control circuitry required
- No need for binning of LEDs or production trimming for accuracy
- Exceeds industry requirements for lighting
- Supports universal mains applications
- Simplifies support for range of LED forward voltages
- Protects LED Driver from overheating in severe situations
- Flexiblity for fault handling
- Avoids overheating in fault condition
- Robust fault handling
- Robust fault handling of common LED system faults
|
Applications- Integral LED Bulbs
- Integrated LED Drive Electronics
- LED Light Engines
- LED Driver Power Supplies
| End Products- LED Bulbs
- LED Power Supply Drivers
- LED Light Engines
- LED Tubes
- Electronic Control Gear for LED Systems
|
Application Notes (1)
Package Drawings (1)
Data Sheets (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCL30188ADR2G | Active | Pb-free
Halide free | SOIC-8 | 751-07 | 3 | Tape and Reel | 2500 | $0.3893 |
| NCL30188BDR2G | Active | Pb-free
Halide free | SOIC-8 | 751-07 | 3 | Tape and Reel | 2500 | $0.3893 |
Specifications
| Product | Topology | VI Min (V) | VI Max (V) | VO Max (V) | IO Max (mA) | fSW Typ (kHz) |
|---|
| NCL30188ADR2G | Step-Up/Step-Down | 9.4 | 26 | 200 | 3000 | Up to 150 |
| NCL30188BDR2G | Step-Up/Step-Down | 9.4 | 26 | 200 | 3000 | Up to 150 |
