LED driver IC for retrofit LED lamps offers 98% energy efficiency
According to ZMDI product manager Hendrik Ahlendorf, the ZLED7320 bridges the gap between the company’s existing 0.75A and 1.2A high-efficiency drivers. At the same time, the small-footprint package will provide easier assembly. The ZLED7320 targets cost- and size- sensitive applications, including Retrofit LED lamps, signage, street and traffic lights, spotlights, appliance lighting and all types of general home and office illumination.
The LED driver features on-chip switching transistor, 1200:1 dimming via PWM signal or fixed voltage, up to 1 amps of output current at +/- 3% accuracy and high-side current sensing. Built-in protection includes thermal shutdown, open-circuit and short-circuit protection. Due to its output current capabilities, the ZLED7320 supports the new high brightness and high current LEDs from major LED manufacturers without requiring an additional MOSFET to the application circuit. Only the addition of 4 passive components is required for a complete LED driver solution. The device operates at a temperature range of -40°C to 105°C.
The DFN-5 package simplifies board assembly and offers improved packing density for area- or volume- constrained systems. Thanks to its compact size, manufacturers can develop innovative new products and applications where efficient high-brightness LED solutions are a market advantage.
The ZLED7320 is in full production now and a complete evaluation kit is available from the company. For 2,500 pieces, the ZLED7320 is priced at 0.66€ or US$0.86.
ZMDI has also introduced the ZLED7330, a high-current 40V LED driver with user selectable switch dimming suitable for high brightness LED lighting applications and the ZLED7002, a dual channel LED Driver with supply voltage switchable channel toggling suitable for extended-life battery operated portable LED lighting applications. Both the ZLED7330 and the ZLED7002 are in full production and complete evaluation kits are available. For 2,500 pieces, the ZLED7330 is priced at 1.06€ or US$1.38 and the ZLED7002 is priced at 0.47€ or US$0.62.
For more information, visit www.zmdi.com
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