NXP Semiconductors’ SSL5015TE LED Driver Integrated Circuit is now available at Mouser Electronics. It is engineered to drive LED lamps for general mains non-dimmable light applications and it targets 100VAC or 120VAC systems. It also boasts an input power factor that is greater than 0.95, with a low Total Harmonic Distortion (THD) of less than 20 percent.
The NXP SSL5015TE LED Driver Integrated Circuit (IC) can be configured as a buck converter while drawing only 1.3 mA. The chip can start up directly from the HV pin using an internal high-voltage current source. While the converter is switching, Vcc is supplied through the DVDT pin by a capacitor coupled to the drain pin or by an auxiliary supply. This feature not only simplifies the VCC supply, but it allows designers to incorporate a low-cost, off-the-shelf inductor. It also targets a variety of lighting applications including retrofit LED lamps and driver modules for LED lighting.
It can be applied for Retrofit LED lamps and Driver modules for LED lighting.
It has the following features:
- Driving LED strings from a rectified mains supply
- Highly integrated switch mode LED driver with integrated 300 V(DC) power switches
- Efficient BCM operation with:
- No reverse recovery losses in freewheel diode
- Zero Current Switching (ZCS) for turn-on of switch
- Zero voltage or valley switching for turn-on of switch
- Minimal required inductance value and size
- Direct PWM current regulation possible
- Fast transient response through peak current mode control
- No overshoots or undershoots in the LED current
- Full set of internal protections
- UnderVoltage LockOut (UVLO)
- Leading-Edge Blanking (LEB)
- OverCurrent Protection (OCP)
- Internal Over Temperature Protection (OTP)
- Brownout protection
- Output Short Protection (OSP)
- Low BOM LED driver solution
- No Schottky diode required due to ZCS
- Easy external temperature protection with a single NTC resistor
- Option for soft-start function
- Compatible with wall switches with built-in standby indicator lights
- High reliability: IC lifetime meets and exceeds the required LED lamp lifetime
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