Power Electronics / Power Management


Switching controller has wide input range

5 November 2003 Power Electronics / Power Management

National Semiconductor's high-voltage, two-phase synchronous switching controller is tailored for power supply designs for communications, industrial and automotive applications. The LM5642 has a wide input voltage range (4,5 V to 36 Vin) which makes the feature-rich device a low-cost, point-of-load (POL) regulator solution for distributed power architectures (DPAs). The device suits applications where multiple high current, low voltage power supplies are needed to power system loads with multiple voltages, such as FPGAs, DSPs and microprocessors. Being flexible, it can operate in two modes, provide two outputs, or in bi-phase mode for a single output with twice the load current. The current-mode control loop can use either a discrete current sense resistor or top-side N-Channel MOSFET RDS(ON) sensing, over a broad conversion range, ie, 36 Vin and 1,8 Vout. Enabling high conversion ratios with up to 95% it suits any of the new DPAs with bus voltages such as 5 V, 12 V, 24 V and up to 36 V.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

40 W and 75 W railway DC/DC converter
Brabek Power Electronics / Power Management
RECOM has announced two new cost-efficient DC/DC converters for the rail market with an ultra-wide 11:1 input range to cover all nominal input voltages from 24 to 110 V DC.

Read more...
Microchip expands its Arm Cortex-M0+ portfolio
Altron Arrow DSP, Micros & Memory
PIC32CM PL10 MCUs feature a rich set of Core Independent Peripherals, 5 V operation, touch capabilities, integrated toolsets, and safety compliance.

Read more...
High-precision current transducer
Power Electronics / Power Management
Danisense announces its new high-precision DP12IP current transducer designed for isolated DC and AC current measurement in demanding PCB-mounted power electronics applications.

Read more...
Secure holder for protected 18650 batteries
Power Electronics / Power Management
Designed for protected 18650 batteries up to 70 mm long, the holder offers secure retention for portable, industrial, and embedded applications.

Read more...
More room to scale
Altron Arrow Power Electronics / Power Management
With the latest STM32H5 lines from STMicroelectronics, you can now scale within the same platform, from a compact 1 Mbyte device to higher-memory MCUs for graphics-rich and feature-heavy designs.

Read more...
Multi-constellation GNSS module in a legacy-compatible footprint
Altron Arrow Telecoms, Datacoms, Wireless, IoT
Telit Cinterion has announced the SE869eK2L, a single-frequency L1 GNSS module designed to help device manufacturers upgrade legacy positioning designs with improved performance and cost efficiency, while preserving design continuity.

Read more...
Compact SSI family for industrial automation
Altron Arrow Passive Components
Infineon Technologies has introduced the ISSI20BxxF Solid State Isolator (SSI) family, bringing solid-state isolation technology into high-volume applications traditionally served by photovoltaic isolators (PVIs), photovoltaic relays (PVRs), and electromechanical relays (EMRs).

Read more...
Rev 2.0 PolarFire FPGA ethernet sensor bridge
Altron Arrow Computer/Embedded Technology
Smaller, multi-camera platform enables scalable Ethernet architectures for NVIDIA Edge AI systems, while lowering power, cost and integration complexity.

Read more...
Surface mount power amplifier for high-power applications
RF Design Power Electronics / Power Management
The GNA-63-5W+, from Mini-Circuits, is a GaN MMIC Power Amplifier (PA) designed for demanding RF applications requiring high efficiency, excellent linearity, and a compact footprint.

Read more...
1200 V QSiC modules
Power Electronics / Power Management
SemiQ Inc has launched the QSiC Dual3, a family of 1200 V half-bridge MOSFET modules for motor drives in data centre cooling systems, grid converters in energy storage systems, and industrial drivers.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved