Product Summary

The CL6807 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 7V and 30V and provides an externally adjustable output current of up to 1A. Depending upon supply voltage and external components, this can provide up to 35 watts of output power. The CL6807 includes the output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. The applications of the CL6807 include Low voltage halogen replacement LEDs, Automotive lighting, Low voltage industrial lighting, LED back-up lighting, illuminated signs.

Parametrics

CL6807 absolute maximum ratings: (1)VIN Supply Voltage -0.3 to 30V; (2)SW Drain of the internal power switch -0.3 to 30V; (3)ISNS Current sense input (Respect to VIN) +0.3 to (-5.0)V; (4)ADJ Logic level dimming input -0.3 to 6V; (5)PDMAX Power Dissipation (Note 2): Internally Limited W; (6)PTR Thermal Resistance, SOT89-5 θJA: 45℃/W; (7)TJ Operation Junction Temperature Range: -40 to 150℃; (8)TSTG Storage Temperature: -55 to 150℃; (9)ESD Susceptibility (Note 3): 2kV.

Features

CL6807 features: (1)Simple low parts count; (2)Wide input voltage range: 8V to 30V; (3)Up to 1A output current; (4)Single pin on/off and brightness control using DC voltage or PWM; (5)Typical 5% output current accuracy; (6)Inherent open-circuit LED protection; (7)High efficiency (up to 95%); (8)High-Side Current Sense; (9)Soft-start; (10)Available in SOT89-5 packages.

Diagrams

CL6807 block diagram