Renesas ZLED7030

Beschreibung

The ZLED7x30 continuous-mode inductive stepdown converter family is one of our ZLED LEDcontrol ICs. It is designed for applications requiring high brightness and high current. The ZLED7x30 can efficiently drive a single LED or multiple series-connected LEDs from a voltage input higher than the LED forward voltage (Vin = 8.5 to 40VDC). It provides an adjustable output current (1.2A maximum), which is set via an external resistor and controlled by the ZLED7x30’s integrated high-side output current-sensing circuitand high speed internal 40V power switch. Its low conducting impedance ensures high system efficiency. The ZLED7x30 provides a switch dimming function. It detects external switch action to adjust output current, allowing dimming functionality to be achieved without changing the original lighting system circuitry. The switch dimming is implemented in either twolevel mode or three-level mode. The output current of every level and the total number of levels are customer selected by setting the correspondinginput conditions of DIM1 and DIM2 pin. The ZLED7x30 enables diverse industrial and consumer lighting applications requiring high driving currents, wide operating voltage range, high efficiency, and variable brightness control. It offers over-temperature and LED open-circuitprotection. The ZLED7x30 can also minimize billof- material costs because very few external components are required for most applications. Only a resistor, a diode, an inductor, and three capacitors are needed for a typical basic application.

Eigenschaften

· Switch dimming with multiple levels

· Three modes for output level settings

· Up to 1.2A output current

· Internal 40V power switch

· Wide DC input voltage range 8.5 to 40 VDC

· Output current accuracy: 5% (typical)

· LED open-circuit protection

· Thermal shutdown protection

Typische Anwendungen

• Interior/exterior LED lighting
• Retrofit LED lighting fixtures
• LED backlighting
• LED street and traffic lighting (low voltage)
• MR16 LED spot lights
• Architecture/building LED lighting
• General purpose industrial and consumer LED applications
• Illuminated LED signs and other displays

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers