LED drivers feature high efficiency and very low standby power

Power Integrations has released the LYTSwitch-6 family of safety-isolated LED-driver ICs for smart lighting applications. The new ICs produce flicker-free output up to 65W, and offer up to 94% efficiency, and as little as 15mW standby power, with configuration options for two-stage or single-stage PFC support. The driver targets smart residential and commercial fixtures and low-profile ceiling troffers. The ICs also exhibit fast transient response, which facilitates excellent cross-regulation performance of parallel LED strings without extra regulator hardware. They also allow easy-implementation of a PWM dimming interface. The ICs include both constant-voltage (CV) and constant-current (CC) operation, allowing lighting manufacturers to decrease the number of product variants, resulting in manufacturing and logistics savings. The new ICs are shielded by an advanced thermal foldback system which stops overheating while giving as much light as thermally possible in any circumstance or installation. Hubie Notohamiprodjo, director of product marketing for LED lighting at Power Integrations, comments: “LYTSwitch-6 ICs are ideally suited to smart lighting applications with multiple outputs. By eliminating heatsinks and optocouplers and reducing the size of the output capacitor by as much as 30%, component count and system size are also reduced.”