ZMDI has added the ZLED7320 to its high-current ZLED7x20 family of 40 V LED driver ICs. The new device, which operates at up to 98% efficiency and is available in a small-footprint DFN-5 package, is designed to help manufacturers address the growing high-brightness (HB) LED lighting market. It is suitable for 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 an on-chip switching transistor, 1200:1 dimming via PWM signal or fixed voltage, up to 1 A output current at ²3% 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 in the application circuit. Only the addition of four passive components is required for a complete LED driver solution. The device operates over a temperature range of -40°C to
105°C.
ZMDI has also introduced the ZLED7330, a high-current 40 V 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.
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