Mar 4 2011
Provider of energy-saving mixed-signal and analog solutions, ZMDI has expanded its portfolio of LED driver integrated circuits by introducing two advanced devices called the ZLED7030 and the ZLED7020 LED driver ICs.
The ICs, with efficiency of up to 98%, provide optimal luminous efficacy possible in ultra-bright LED uses.
The ZLED7030 and the ZLED7020 have a dimming range of 1200:1 and use 1.2 A current from a 40 V power supply to drive LEDs. The ZLED7030 provides a two-third-step dimming switch with three setup options and thus eradicates the requirement for an exterior dimmer control. The LED driver ICs feature a 40 V switching transistor on-chip to provide high-side current sensing. Both equipment has minimum components and includes a diode, a current-sense resistor, a capacitor and an inductor.
The integrated safety features such as thermal shutdown, short-circuit and open-circuit protection safeguard the ultra-bright, high-current LEDs. The ICs endorse such LEDs without the including an extra MOSFET to the application circuit due to their high output current potential. The ICs’ operating temperature range is between -40°C and 105°C. The ZLED7030 is accommodated in SOP-8 housing, while the ZLED7020 is available in a SOT89-5 housing. Full assessment kits are available for both LED driver ICs.
The Product Manager at ZMDI, Hendrik Ahlendorf commented that the LED driver ICs are suitable for office and house illumination, appliance lighting, spotlights, signage, traffic and streetlights.