ZLED7020ZI1R

ZLED7x20 High Current 40V LED Driver with Internal Switch Datasheet Brief Description Benefits The ZLED7x20 continuous-mode inductive step- High efficiency: up to 98% down converter family is part of our line of LED- Single pin on/off and brightness control using control ICs. It is designed for applications requiring DC voltage or PWM high brightness and high current. It can efficiently Very few external components needed for drive a single LED or multiple series-connected operation LEDs from a voltage input higher than the LED for- Footprint compatible with our ZLED7000 ward voltage: Vin = 6 to 40 VDC. It provides an depending on the application. adjustable output current 1.2A, which is set via an external resistor and controlled by the ZLED7x20s Available Support integrated high-side output current-sensing circuit and high speed internal 40V power switch. An Evaluation Kit external control signal, which can be a DC voltage, PWM, or microcontroller-generated waveform, on Physical Characteristics the ADJ pin can also be used to linearly adjust a Operating junction temperature: -40C to 125C continuous output current or to control a gated out- Switching frequency: up to 1MHz put current. The output can be turned off by applying a voltage lower than 0.2V to the ADJ pin, which puts the ZLED7x20 Family Selection Matrix ZLED7x20 in a low-current standby state. Product Max. Current Output Package The ZLED7x20 enables diverse industrial and consumer lighting applications requiring high ZLED7020 1.2A SOT89-5 driving currents, wide operating voltage range, ZLED7320 1.0A DFN-5 high efficiency, and variable brightness control. It ZLED7520 0.75A DFN-5 offers over-temperature and LED open-circuit pro- tection. The ZLED7x20 can also minimize bill-of- ZLED7720 0.35A DFN-5 material costs because very few external com- ponents are required for most applications. Only a resistor, a diode, an inductor, and three capacitors are needed for a typical basic application. ZLED7x20 Typical Application Circuit Features Rs Up to 1.2A output current Vs = 6 to 40 VDC Internal 40V power switch D1 Wide DC input voltage range 6 to 40 VDC Output current accuracy: 3% (typical) (C3) Dimming ratio: 1200:1 LED Vin I SENSE String LED open-circuit protection Thermal shutdown protection L1 (C1) C2 ZLED7x20 0.1F LX 33H to ADJ 220H GND 2016 Integrated Device Technology, Inc. 1 April 20, 2016 ZLED7x20 High Current 40V LED Driver with Internal Switch Datasheet ZLED7x20 Block Diagram 6 to 40 VDC Rs V S D1 4 ISENSE (C1) C2 VCC (C3) 0.1F n LED VDDA 5 Power VDDD V IN Supply, L1 Oscillator, 1 I SENSE and Under- 33H to VIN LX Voltage 220H Power Detection UV MOS I SENSE (UV) DR POR And VREF Driver SD SD 500k 3 Shutdown ADJ ISENSE POR Trim ZLED7X20 LX 2 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 Code Description Package ZLED7020ZI1R ZLED7020 High Current (1200mA) 40V LED Driver with Internal Switch SOT89-5 (Tape & Reel) ZLED7320ZI1R ZLED7320 High Current (1000mA) 40V LED Driver with Internal Switch DFN-5 (Tape & Reel) ZLED7520ZI1R ZLED7520 High Current (750mA) 40V LED Driver with Internal Switch DFN-5 (Tape & Reel) ZLED7720ZI1R ZLED7720 High Current (350mA) 40V LED Driver with Internal Switch DFN-5 (Tape & Reel) ZLED7020KIT-D1 ZLED7020-D1 Demo Board, 1 ZLED-PCB8 and 5 ZLED7020 ICs Kit ZLED-PCB8 Test PCB with a 5W white high brightness (HB) LED, cascadable to a multiple LED string Printed Circuit Board (PCB) 2016 Integrated Device Technology, Inc. 2 April 20, 2016