R1580N Series 34 V Constant-Current LED Driver Controller No. EA-365-180702 OUTLINE The R1580N is a 34-V constant-current LED driver controller. Internally, this device consists of a linear dimming controller using a PWM input signal, a thermal shutdown circuit (TSD), and an undervoltage lockout circuit (UVLO) in addition to the basic constant-current control circuits. A flicker-free wide-dimming constant-current LED driver can be configured by only adding an Nch MOSFET, a current sensing resistor and capacitors to the R1580N. The FET to control current flow is placed externally, so that the R1580N will not give any influence on the current range capable of dealing with. The R1580N is linear dimmable with using a PWM signal on the DIM pin. The R1580N is capable of performing a constant-current control corresponding to the different PWM duty cycles. The R1580N002A is linear dimmable as low as 0.5% PWM duty cycle and the R1580N001A/ R1580N003A is linear dimmable as low as 1% PWM duty cycle. Unlike other LED drivers with PWM dimming, the R1580N can provide a smooth flicker-free dimming operation using linear dimming. The R1580N is offered in a small 6-pin SOT-23-6 package. FEATURES R1580N001A/ R1580N002A/ R1580N003A Input Voltage Range (Max. Rating): 3.6 V to 34.0 V (36.0 V) Operating Temperature Range: 40C to 85C Line Regulation: Typ. 0.01%/V Thermal Shutdown Protection Linear Dimmable Using a PWM Signal Package: SOT-23-6 R1580N001A (Comparator Input, 1.0% PWM Duty) Max. SOURCE Pin Voltage Accuracy (100% PWM Duty): Typ. 400 mV 8 mV Min. SOURCE Pin Voltage Accuracy (1.0% PWM Duty): Typ. 4 mV 2 mV Supply Current: Typ. 320 A, Standby Current: Typ. 140 A R1580N002A (Comparator Input, 0.5% PWM Duty) Max. SOURCE Pin Voltage Accuracy (100% PWM Duty): Typ. 800 mV 16 mV Min. SOURCE Pin Voltage Accuracy (0.5% PWM Duty): Typ. 4 mV 2 mV Supply Current: Typ. 320 A, Standby Current: Typ. 140 A R1580N003A (Inverter Input, 1.0% PWM Duty) Max. SOURCE Pin Voltage Accuracy (100% PWM Duty): Typ. 400 mV 8 mV Min. SOURCE Pin Voltage Accuracy (1.0% PWM Duty): Typ. 4 mV 2 mV Supply Current: Typ. 320 A, Standby Current: Typ. 28 A APPLICATIONS General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights Industrial LED Lighting: Image Recognition Devices Stage Lighting and Signage Sports Facility Lighting Ultraviolet (UV) and Infrared (IR) Irradiation Devices Scanners and Handy Terminals Amusement Machines Other Electronic Devices 1 R1580N No. EA-365-180702 SELECTION GUIDE The interface of the DIM pin and the voltage level of the ISET pin are user-selectable options. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free R1580NxxxA-TR-FE SOT-23-6 3,000 pcs Yes Yes xxx: Specify the interface of the DIM pin and the voltage level of the ISET pin. 001: ISET Pin Voltage = 0.4 V, DIM Pin Interface = Comparator Input, High Accuracy PWM Signal Threshold Voltage 002: ISET Pin Voltage = 0.8 V, DIM Pin Interface = Comparator Input, High Accuracy PWM Signal Threshold Voltage 003: ISET Pin Voltage = 0.4 V, DIM Pin Interface = Inverter Input BLOCK DIAGRAMS R1580N001A, R1580N002A Block Diagram R1580N003A Block Diagram 2