Power Electronics / Power Management


New integrated power semiconductor family launched at show

5 June 2002 Power Electronics / Power Management

Infineon Technologies announced further members of its CoolSET F2 family at the recent PCIM 2002 show. The new products in TO220 package are designed for output power ratings up to 240 W, enabling switched-mode power supply (SMPS) manufacturers to rapidly develop efficient, low-cost and high-quality power supplies conforming to the new EU minimum heat generation guidelines. The CoolSET F2 family boasts the lowest drain-source on-state resistance in the industry, around 40% less than that of current products on the market, according to the manufacturer.

Typical applications include primarily adapter power supplies, as well as integrated power supply solutions featuring high power density eg for flat-panel LCD monitors, set-top boxes or compact, general-purpose auxiliary power supply units.

The CoolSET F2 products combine a power MOSFET implemented in the company's CoolMOS (metal oxide semiconductor) technology with a fixed-frequency PWM (pulse width modulation) control IC. The very low switching and conduction losses lead to a marked reduction in heat generation. The new 240 W products in insulated TO220 package provide optimum heat dissipation, with thermal resistance (Rth = 2,5 K/W) improved by more than 50% compared with Fullpack versions. Heatsinking has been reduced to an absolute minimum.

Both TO220 versions, the CoolSET ICE2A765P and the ICE2B765P, integrate a CoolMOS with a drain-source on-state resistance (RDSon) of only 0,5[ohm] and a drain-source breakdown voltage (Vds) of 650 V. Conventional industry-standard TO220 power ICs exhibit on-state resistances of around 0,8[ohm] and above. If necessary, Infineon can integrate a CoolMOS with an RDSon of max. 0,35[ohm] and Vds of 650 V in a TO220 CoolSET.

Monitoring, protection and energy-saving

The new CoolSET F2 versions feature an array of built-in monitoring, protection and energy-saving functions. They minimise the amount of external wiring needed and allow a more compact SMPS design at a lower overall cost. Highlights include the current mode control function with integrated overshoot minimisation, MOSFET temperature sensing for instantaneous shutdown, as well as an under voltage lockout (UVL) function to prevent destruction of the CoolMOS as a result of incorrect drive voltage levels.

A user-defined softstart function increases the life of vital SMPS components; an extended pulse duty factor of the CoolMOS drive signal permits operation in either discontinuous or continuous current mode. The CoolSET's leading-edge blanking function ensures safe turn-on behaviour, both in standard situations and at auto restart.

Overcurrent, overvoltage and open-loop protection functions are also integrated. Under no-load, ie at 0 W output power, the standby power is stepped back to less than 500 mW (in 80 W applications). This energy-saving concept has been implemented without an additional connection pin, and with no external wiring.

Infineon has available a CoolSET F2 evaluation package, which includes samples, application notes, data sheet, demo board and demo board description, Excel-based PC calculation software, and PSpice models.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Multi-sensor IoT module
29 July 2020, Electrocomp , Telecoms, Datacoms, Wireless, IoT
TDK announced worldwide availability of the InvenSense SmartBug, a compact, wireless multi-sensor solution designed for a plethora of commercial and consumer IoT applications. The out-of-the-box solution ...

Read more...
DIN rail enclosures
30 June 2020, Electrocomp , Enclosures, Racks, Cabinets & Panel Products
Hammond Manufacturing has announced its 1597DIN family of UL94-V0 flame-retardant plastic enclosures for mounting to standard IEC/EN 60715 35 mm DIN rails for applications such as industrial control equipment, ...

Read more...
MOSFET half-bridge power stage
30 June 2020, Altron Arrow , Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...

Read more...
CeraCharge now available in a small packing unit
30 June 2020, Electrocomp , Passive Components
TDK is presenting a new packing unit for CeraCharge, the world’s first SMD technology solid-state rechargeable battery, in the compact size EIA 1812 (4,4 x 3,0 x 1,1 mm). The packing unit (B73180A0101M199) ...

Read more...
Programmable electronic DC loads with energy recovery
30 June 2020, Vepac Electronics , Power Electronics / Power Management
Elektro-Automatik’s new series of electronic DC loads with energy recovery to mains, called EA-ELR 9000 HP, is an advancement of the series EA-ELR 9000. It offers a wider AC input range for operation ...

Read more...
18 V synchronous buck converters
30 June 2020, Altron Arrow , Power Electronics / Power Management
Suitable for consumer and industrial applications, Diodes Incorporated announced the AP62xxx family of high-efficiency synchronous step-down DC-DC converters including the AP62250 (2,5 A), AP62300 (3 A), ...

Read more...
Robust temperature sensor for E-mobility
30 June 2020, Electrocomp , Analogue, Mixed Signal, LSI
The new B58703M1103A* temperature sensor is specially developed for demanding E-mobility applications, which call for high long-term stability. The NTC sensor is designed for a temperature range of -40°C ...

Read more...
MOSFET half-bridge power stage
30 June 2020, Altron Arrow , Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...

Read more...
Laser diode driver power supplies
30 June 2020, Vepac Electronics , Power Electronics / Power Management
DEI offers a variety of laser diode driver instruments designed with the laser researcher, system designer and scientist in mind. In both bench-top and rack-mount configurations, as well as a variety ...

Read more...
USB Type-C power delivery controller
30 June 2020, CST Electronics , Power Electronics / Power Management
The MAX77958 from Maxim Integrated is a robust solution for USB Type-C CC detection and power delivery (PD) protocol implementation. It detects connected accessories or devices by using Type-C CC detection ...

Read more...