ZLED7x30 High Current 40V LED Driver with Switch Dimming Datasheet Brief Description Features Switch dimming with multiple levels The ZLED7x30 continuous-mode inductive step- down converter family is one of our ZLED LED- Three modes for output level settings control ICs. It is designed for applications requiring Up to 1.2A output current high brightness and high current. The ZLED7x30 Internal 40V power switch can efficiently drive a single LED or multiple Wide DC input voltage range 8.5 to 40 VDC series-connected LEDs from a voltage input higher Output current accuracy: 5% (typical) than the LED forward voltage (Vin = 8.5 to LED open-circuit protection 40VDC). It provides an adjustable output current (1.2A maximum), which is set via an external Thermal shutdown protection resistor and controlled by the ZLED7x30s integrated high-side output current-sensing circuit Benefits and high speed internal 40V power switch. Its low High efficiency: up to 98% conducting impedance ensures high system effi- Very few external components needed for ciency. operation The ZLED7x30 provides a switch dimming func- Adds switch dimming function to existing tion. It detects external switch action to adjust out- installation put current, allowing dimming functionality to be achieved without changing the original lighting sys- Available Support tem circuitry. Evaluation Kit The switch dimming is implemented in either two- Physical Characteristics level mode or three-level mode. The output current Operating temperature: -40C to 105C of every level and the total number of levels are customer selected by setting the corresponding Switching frequency: up to 1MHz input conditions of DIM1 and DIM2 pin. SOP-8 package The ZLED7x30 enables diverse industrial and consumer lighting applications requiring high ZLED7x30 Family Selection Matrix driving currents, wide operating voltage range, Product Max. Current Output Package high efficiency, and variable brightness control. It ZLED7030 1.2A SOP-8 offers over-temperature and LED open-circuit protection. The ZLED7x30 can also minimize bill- ZLED7330 1.0A SOP-8 of-material costs because very few external ZLED7530 0.75A SOP-8 components are required for most applications. Only a resistor, a diode, an inductor, and three ZLED7730 0.35A SOP-8 capacitors are needed for a typical basic application. ZLED7x30 Typical Application Circuit Rs Switch D1 Vs = 8.5 to 40 VDC (C3) LED Vin I SENSE String L1 33 to 220 H ZLED7x30 C1 C2 LX 220F 0.1F DIM1 GND/Floating GND/Floating GND DIM2 2016 Integrated Device Technology, Inc. 1 April 20, 2016 ZLED7x30 High Current 40V LED Driver with Switch Dimming Datasheet ZLED7x30 Block Diagram 6 to 40 VDC Rs V S D1 I SENSE 2 (C1) C2 VCC (C3) 0.1F VDDA n LED 1 Power VDDD V Supply, IN L1 Oscillator VCC 8 ISENSE and V REF 33H to V LX Under- IN Power 220H Voltage MOS UV Detection ISENSE DR POR (UV) And SD CLK Driver SD SD S Dim Shut- Analog 6 Select down Dim Trim DIM1 Logic DIM2 ZLED7x30 5 7 GND Typical Applications Illuminated LED signs and other displays Interior/exterior LED lighting LED street and traffic lighting (low voltage) MR16 LED spot lights Architecture/building LED lighting Retrofit LED lighting fixtures LED backlighting General purpose industrial and consumer LED applications Ordering Information Product Sales Code Description Package ZLED7030ZI1R ZLED7030 High Current (1200mA) 40V LED Driver with Switch Dimming SOP-8 (Tape & Reel) ZLED7330ZI1R ZLED7330 High Current (1000mA) 40V LED Driver with Switch Dimming SOP-8 (Tape & Reel) ZLED7530ZI1R ZLED7530 High Current (750mA) 40V LED Driver with Switch Dimming SOP-8 (Tape & Reel) ZLED7730ZI1R ZLED7730 High Current (350mA) 40V LED Driver with Switch Dimming SOP-8 (Tape & Reel) ZLED7030KIT-D1 ZLED7030-D1 Demo Board, 1 ZLED-PCB8 and 5 ZLED7030 ICs Kit ZLED-PCB8 Test PCB with one 5W white High Brightness (HB) LED, cascadable to one Printed Circuit Board (PCB) multiple LED string 2016 Integrated Device Technology, Inc. 2 April 20, 2016