Cypress Semiconductor recently introduced the PowerPSoC family of integrated embedded power controllers, reputedly the industry’s first single-chip solution for both controlling and driving high-power LEDs.
The family integrates four constant-current regulators and four 32 V MOSFETs with Cypress’s PSoC programmable system-on-chip, which includes a microcontroller, programmable analog and digital blocks, and memory.
This high level of integration provides customers with a single-chip solution for high-quality LED-based lighting products, and extends into other embedded applications such as white goods and industrial control. The companion software for PowerPSoC, the PSoC Designer development tool, enables designers to program the controllers for different lighting and power options. It also allows changes late in the design cycle without having to change the circuit board layout.
The devices feature up to four programmable hysteretic controllers to provide controlled current output, while up to four low-side gate drivers with programmable drive strength provide the ability to support voltages above 32 V with external MOSFETs. Floating load buck, floating load buck-boost, and boost converter topologies enable flexibility for different voltage requirements. An auxiliary power regulator offers the ability to power the chip from a single power supply.
The PSoC architecture offers eight programmable digital blocks for functions such as timers, counters, PWMs and UARTs; six programmable analog blocks for functions such as amplifiers, ADCs, DACs, filters and comparators; 16 KB of Flash memory; and an 8-bit microcontroller.
Also available is the CY3268 demonstration kit, which drives four LEDs in a small form-factor with basic reprogramming/debugging capability. A PowerPSoC evaluation kit (CY3267) is also available for customer prototyping. It offers a modular approach with interface for daughter-cards to support multiple applications, multiple protocols (DMX512 and DALI) and customer-specific daughter cards. The CY3267 also offers flexible topology, supporting buck, boost and buck-boost configurations.
For more information contact Stuart Hanford, Arrow Altech Distribution, +27 (0)11 923 9600, , www.arrow.altech.co.za
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