SSL2109AT1,118

SSL2109AT Compact non-dimmable LED driver IC Rev. 5 3 October 2013 Product data sheet 1. General description The SSL2109AT is a high-voltage Integrated Circuit (IC) for driving LED lamps in general lighting applications. The main benefits of this IC include: Small Printed-Circuit Board (PCB) footprint and compact solution High efficiency (up to 95 %) for non-dimmable high power factor solutions High power factor >0.9 (application dependent) Ease of integration and many protection features Low electronic Bill Of Material (BOM) Highly flexible IC for use in buck, buck/boost and flyback modes Single inductor used for non-isolated configurations because of internal demagnetization detection and dV/dt supply The IC is supplementary to the SSL21081/SSL21083 series but without an internal switch. The IC has been designed to start up directly from the HV supply by an internal high-voltage current source. Thereafter, the dV/dt supply is used with capacitive coupling from the drain, or any other auxiliary supply. This functionality provides full flexibility in the application design. An internal clamp limits the supply voltage. The IC provides accurate output current control to within 5 % LED current accuracy. The IC can be operated using Pulse-Width Modulation (PWM) current regulation and has many protection features including easy LED temperature feedback. 2. Features and benefits LED driver IC for driving strings of LEDs or high-voltage LED modules from a rectified mains supply Part of a high-efficiency switch mode flyback or buck product family. Driver-only which can drive an external MOSFET Driver that has power-efficient boundary conduction mode of operation with: No reverse recovery losses in freewheel diode Zero Current Switching (ZCS) for switch turn-on Zero voltage or valley switching for switch turn-off Minimal required inductance value and size Suitable for high power factor (>0.9) applications Applicable in buck, buck/boost and flyback topologiesSSL2109AT NXP Semiconductors Compact non-dimmable LED driver IC Direct PWM current regulation possible Fast transient response through cycle-by-cycle current control: Negligible AC mains ripple in LED current and minimal total capacitance in low ripple configurations No over or undershoots in the LED current Simple high input power factor solution (>0.9) Internal protection features: UnderVoltage LockOut (UVLO) Leading-Edge Blanking (LEB) OverCurrent Protection (OCP) Internal OverTemperature Protection (OTP) Brownout protection Output Short Protection (OSP) Low component count LED driver solution (see Figure 3): Easy external temperature protection with a single NTC Option for soft-start function Compatible with wall switches with built-in indication light during standby IC lifetime easily matches or surpasses LED lamp lifetime 3. Applications The SSL2109AT is intended for compact LED lamps with accurate fixed current output for single mains input voltages. Mains input voltages include 100 V, 120 V and 230 V (AC). The output signal can be modulated using a PWM signal. External components determine the power range. 4. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit 1 V supply voltage operating range 8 - 16 V CC I internal supply current normal operation - 1.3 - mA CC(INT) V voltage on pin HV 0.4 - +600 V HV V voltage on pin DRAIN 0.4 - +600 V DRAIN f conversion frequency - 100 - kHz conv V maximum output voltage V > V 9 10.5 12 V o(DRIVER)max CC CC(startup) on pin DRIVER 1 An internal clamp sets the supply voltage. The current into the VCC pin must not exceed the maximum IDD value (see Table 4) SSL2109AT All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 5 3 October 2013 2 of 20