Product category:
Power Supply ICs and Controllers
News Release from: Fairchild Semiconductor | Subject: FSB50250 and FSB50450
Edited by the Electronicstalk Editorial
Team on 13 June 2005
Power modules cut the budget for DC
motor drives
Fairchild Semiconductor's Motion-Smart Power Modules (SPMs) offer a highly integrated solution for low-power (sub-100W), brushless DC (BLDC) motor applications.
Fairchild Semiconductor's Motion-Smart Power Modules (SPMs) offer a highly integrated solution for low-power (sub-100W), brushless DC (BLDC) motor applications The Motion-SPM devices integrate multiple functions in a single compact package, offering a simplified motor drive solution to speed engineering design, reduce PC board space and enable energy-efficient and reliable designs in home appliances
This article was originally published on Electronicstalk on 28 Feb 2001 at 8.00am (UK)
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Motion-SPM multichip modules combine six fast recovery MOSFETs (FRFET) and three half-bridge high-voltage ICs (HVIC) in one thermally efficient, ultracompact (29 x 12mm) Tiny-DIP package designed for BLDC motors with built-in control.
"The low-power appliance market is selecting high-voltage brushless DC (BLDC) motors over single-phase AC induction motors, due to their increased efficiency (from 50 to 90%), decreased acoustic noise and vibration, and higher power density per volume and weight".
"Fairchild's Motion-SPMs make it possible to build the motor control into the BLDC assembly", said Taehoon Kim, Vice President of Fairchild's High-Power Product Line.
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"By integrating power analogue and power discrete IC functionality into a single package, the SPM represents how Fairchild understands - and meets - the thermal efficiency, reliability and board space demands of the home appliance market".
"In addition to offering advantages over nonintegrated solutions, the new Motion-SPM series makes Fairchild's SPM portfolio the industry's most comprehensive lineup of power modules covering inverter motors used in a full range of 50W to 3kW appliances".
Each Motion-SPM uses advanced FRFET and HVIC devices to ensure the performance and long-term reliability of the end product, while simplifying motor inverter designs.
The Motion-SPMs' FRFETs optimise system efficiency by lowering switching and conduction losses during low-current conditions.
For ruggedness, they provide a wider reverse bias safe operating area (RBSOA) than IGBTs of similar ratings.
By using the MOSFETs' body diodes as freewheeling diodes, Motion-SPMs eliminate the need for additional components, improving the efficiency and noise immunity.
The gate-driver ICs increase reliability through high-isolation, 5V CMOS/TTL interface and undervoltage lockout (UVLO) protection features.
Additional features of the Motion-SPM series streamline the design process.
The HVICs' high-speed level-shifting function permits operation from a single power supply voltage, a technique that makes space-consuming optoisolation unnecessary.
By providing optimal control of switching speeds, Motion-SPMs lower electromagnetic interference (EMI), enabling designers to reduce the design costs related to cutting noise.
In addition, these modules save space while increasing reliability by offering three divided negative DC-link terminals for inverter current sensing.
The 500V FSB50250 and FSB50450 (2 and 3A-rated, respectively) are each housed in a 23-lead DIP.
These products are lead-free (Pb-free).
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