Supertex has introduced the HV9861A, an open loop, average current mode control, LED driver IC designed to drive LEDs using a buck topology. The IC is suitable for solid-state lighting applications, including TV and monitor backlighting, signage, decorative, and general lighting. According to the company, the LED driver IC does not produce a peak-to-average error and thus enhances the accuracy, and line and load regulation of the LED current. The IC provides typical current accuracy of ±3% and requires no loop compensation or high-side current sensing, says the company. The internally regulated voltage Vdd for the driver IC is 7.5V. The RoHS-compliant LED driver IC is available in SOIC-8 and SOIC-16 packages and is pin-compatible with the company's HV9910B and HV9961 LED drivers.
