Two ultra-small PWM current-mode controllers
12 March 2003
Power Electronics / Power Management
ON Semiconductor has introduced the NCP1203 and NCP1200A - two space-saving Pulse Width Modulator (PWM) current-mode controllers that enable power supply designers to meet standby power regulations such as Energy Star and Blue Angel with a low-cost optimised solution.
The NCP1200 product family sets the standard for standby power consumption over the universal input voltage range whilst maintaining high power conversion efficiency during normal operating mode. The device family provides a flexible way to mix and match with external MOSFETs to serve product applications from 5 W to more than 100 W with the same basic power-supply design and footprint. The NCP1203 and the NCP1200A offer user-programmable peak current, output drive capability of 250 mA, as well as a 'skip-cycle' mode for excellent efficiency at light loads.
The NCP1200A is a second-generation version of the existing NCP1200 with improved FET drive capability, lower standby power consumption and ON Semiconductor's proprietary Dynamic Self-Supply circuitry. This circuitry allows power to be drawn directly from the high-voltage rail at start-up, eliminating the need for an auxiliary transformer winding.
The NCP1203 is ideally suited for providing the lowest possible standby power consumption in numerous end-product designs. In independent tests, a 70 W switched mode power supply (SMPS) built with the NCP1203 consumed only 86 mW of standby power at maximum line voltage (242 V) - the best performance in its class.
Both the NCP1203 and the NCP1200 are offered in surface mount SO-8 package as well as the traditional PDIP-8 package.
For more information contact Avnet Kopp, 011 809 6100, [email protected], www.avnet.co.za
Further reading:
The importance of power integrity
Spectrum Concepts
Power Electronics / Power Management
[Sponsored] Behind every high-speed system lies the need for power integrity. Without it, even the cleanest signal paths become compromised.
Read more...
Precise multi-vital sign monitoring
Future Electronics
Power Electronics / Power Management
The AS7058 by ams OSRAM is an integrated multi-vital sign monitoring device, which provides a complete photoplethysmogram, electrocardiogram, body impedance sensor, and electrodermal activity sensor.
Read more...
Automotive battery diagnostics tester
Comtest
Power Electronics / Power Management
Midtronics’ MVT handheld battery tester is a revolutionary tool, powered by MDX-AI, which is set to redefine the standards of battery diagnostics and testing in the automotive industry.
Read more...
Advanced 3-phase controllers
Future Electronics
Power Electronics / Power Management
The STSPIN32G0 by STMicroelectronics is a family of highly integrated system-in-package providing solution suitable for driving three-phase brushless motors.
Read more...
Converting high voltages without a transformer
Altron Arrow
Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.
Read more...
Reliable power for demanding applications
Conical Technologies
Power Electronics / Power Management
The Mibbo Power MTR480 three-phase DIN-rail power supply is engineered to meet stringent industrial automation requirements, offering dependable performance in environments where downtime is not an option.
Read more...
Powering performance and precision
Future Electronics
Power Electronics / Power Management
onsemi’s innovative T10 series MOSFETs, available in 40 V and 80 V versions, are designed for high-efficiency, fast-switching, and power-dense applications.
Read more...
Programmable flyback switcher ICs
Future Electronics
Power Electronics / Power Management
Power Integrations has announced the release of the InnoSwitch5-Pro family of programmable flyback switcher ICs, which offer more than 95% efficiency in streamlined AC-DC converter designs.
Read more...
Multilayer chip beads with 8 A rating
RS South Africa
Power Electronics / Power Management
TDK Corporation has expanded its MPZ1608-PH series of large-current multilayer chip beads for automotive and commercial power supply lines.
Read more...
The role of bidirectional charging in the evolving energy landscape
Avnet Silica
Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.
Read more...
printer friendly version