Power, strømforsyning, EMC/ESD

 

Dynamisk konfigurerbar off-line switcher IC

Dynamisk konfigurerbar off-line switcher IC

Power Integrations InnoSwitch3-Pro er en off-line switcher IC, der understøtter USB PD 3.0 + PPS (in english).

Power Integrations, a leader in high-voltage integrated circuits for energy-efficient power conversion, hasannounced the release of its InnoSwitch3-Pro family of configurable off-line CV/CC and CP flyback switcher ICs.

Capable of delivering up to 65 W and achieving up to 94% efficiency across line and load conditions, the new devices permit precise, dynamically adjustable, control of voltage (10 mV step) and current (50 mA step), via a simple two-wire I2C interface. Devices may be paired with a microcontroller or take inputs from the system CPU to control and monitor the off-line power supply.


Applications include virtually any rapid-charging protocol, including USB Power Delivery (PD) 3.0 + PPS, Quick Charge 4/4+, AFC, VOOC, SCP, FCP and other industrial and consumer battery chargers, dimmable LED ballast drivers and field-configurable industrial power supplies.

InnoSwitch3-Pro power-conversion ICs include a microprocessor VCC supply - eliminating the need for an external LDO to power the microcontroller; also included is an n-channel FET driver which may be used to enable or disable the main power output. Together with integrated bus voltage, current and fault-reporting telemetry and dynamically configurable protection functions such as OTP, line OV/UV, output OV/UV, and short-circuit, the BOM count for a sophisticated offline power supply is significantly reduced and design complexity is dramatically simplified.

Comments Shyam Dujari, director of product marketing for Power Integrations explains:
- The AC-DC power conversion market is undergoing rapid transition with system designers needing a programmable solution that can adapt to various fast-charging protocols including the recently completed USB PD 3.0 + PPS specification.

- The ability to precisely control the output voltage and current of a power supply over a wide range is also useful for designers of specialized applications with smaller production runs, as they can easily configure a single board design for multiple product SKUs using software either at manufacture or during installation. 

New InnoSwitch3-Pro ICs employ Power Integrations’ high-speed digital communications technology, FluxLink, plus synchronous rectification, quasi-resonant switching and a precise secondary-side feedback sensing and feedback control circuit. Devices are CQC certified, UL recognized and TUV (EN60950) approved to bridge the isolation barrier; the products’ InSOP-24D package also provides a low-profile, thermally efficient solution with extended creepage (more than 11.5 mm) and clearance between primary and secondary sides for high reliability, surge protection and ESD robustness.

InnoSwitch3-Pro ICs target fast-charging protocols for applications such as smartphones, notebooks, tablets, smart speakers and non-charging applications that require either a load-controlled or configurable output.
8/3 2018
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