Visit any power tool retailer these days and you will see just how the cordless section has grown. Driven by price and performance advances in battery and motor technologies, portable ranges have expanded to include screwdrivers, drills, saws, sanders, planes and angle grinders - with specifications that were previously only available in mains powered versions. Now garden tools are going the same way with the introduction of cordless lawnmowers, hedge trimmers and even chainsaws.
New opportunities have brought increased competition. Manufacturers are continually vying with each other to differentiate their products in terms of drive voltage, maximum torque, battery life and reliability. For some applications, size and weight are becoming increasingly important, challenging engineers to create ever more compact designs.
NextPower Cordless – MOSFETs for battery-powered tools
To help power tool design companies (and their power module suppliers), Nexperia has created a portfolio of power MOSFETs specifically for power tool motor control. Known as 'NextPower Cordless', these devices offer enhanced performance in all important parameters:
- ID(max) – 500 µm diameter internal wires, with multiple bonding points, provide up to 150 A in a TO-220 package, enabling maximum torque from the motor and reliably managing high load and stall current conditions
- Avalanche ruggedness – Switching highly inductive loads such as motor coils requires MOSFETs able to handle repetitive avalanche events. Nexperia offers best-in-class performance based on our leading position in the automotive market
- On resistance – Nexperia’s low RDS(on) characteristics deliver higher efficiencies, ensuring longer battery life and easier thermal
- Thermal management – The industry leading low Rth(j-mb) property of the LFPAK56 ensures the MOSFET junction temperature can be kept under control even in the most compact of designs
The NextPower Cordless portfolio
Today, the NextPower Cordless portfolio incorporates two package types, TO-220 and LFPAK56 (footprint compatible with Power-SO8 devices), across three voltage ranges, 30, 40 and 60 V. A third package type (D2PAK-7), will be included at a later date for very high current industrial tools.
Many devices are offered in logic level allowing them to be switched directly from a microcontroller device.
The MOSFET requirements for motor control in power tools are in many ways similar to motor control within vehicles. Both applications demand high currents, especially under high load conditions, avalanche ruggedness, low RDS(on) and careful thermal management. Furthermore, power tools and cars are both subjected to extremes of temperature, humidity and harsh vibration environments.
Therefore, it is perhaps unsurprising, that the NextPower Cordless range shares many characteristics of Nexperia’s automotive-qualified MOSFETs and customers can be confident in their quality and reliability.
|Type number||Description||Status||Quick access|
|PSMN0R9-30ULD||N-channel 30 V, 0.87 mΩ, 300 A logic level MOSFET in SOT1023A enhanced package for UL2595, using NextPowerS3 Schottky-Plus Technology||Production|
|PSMN0R9-30YLD||N-channel 30 V, 0.87 mΩ, 300 A logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|
|PSMN1R0-30YLD||N-channel 30 V, 1.0 mΩ, 300 A logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|
|PSMN1R0-40ULD||N-channel 40 V, 1.1 mΩ, 280 A logic level MOSFET in SOT1023A enhanced package for UL2595, using NextPower-S3 Schottky-Plus technology||Production|
|PSMN1R0-40YLD||N-channel 40 V, 1.1 mΩ, 280 A logic level MOSFET in LFPAK56 using NextPower-S3 Schottky-Plus technology||Production|
|PSMN1R2-30YLD||N-channel 30 V, 1.2 mΩ, 250 A logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|
|PSMN1R4-30YLD||N-channel 30 V, 1.4 mΩ logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|
|PSMN1R4-40YLD||N-channel 40 V, 1.4 mΩ, 240 A logic level MOSFET in LFPAK56 using NextPower-S3 technology||Production|
|PSMN1R5-40PS||N-channel 40 V 1.6 mΩ standard level MOSFET in TO220||Production|
|PSMN1R8-40YLC||N-channel 40 V 1.8 mΩ logic level MOSFET in LFPAK using NextPower technology||Production|
|PSMN1R9-40PL||N-channel 40 V, 1.7 mΩ logic level MOSFET in SOT78||Production|
|PSMN2R1-40PL||N-channel 40 V, 2.2 mΩ logic level MOSFET in SOT78||Production|
|PSMN2R4-30YLD||N-channel 30 V, 2.4 mΩ logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|
|PSMN2R5-60PL||N-channel 60 V, 2.6 mΩ logic level MOSFET in SOT78||Production|
|PSMN2R6-60PS||N-channel 60 V, 2.6 mΩ standard level MOSFET in SOT78||Production|
|PSMN2R8-40PS||N-channel TO220 40 V 2.8 mΩ standard level MOSFET||Production|
|PSMN3R0-30YLD||N-channel 30 V, 3.0 mΩ logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|
|PSMN3R3-60PL||N-channel 60 V, 3.4 mΩ logic level MOSFET in SOT78||Production|
|PSMN3R9-60PS||N-channel 60 V, 3.9 mΩ standard level MOSFET in SOT78||Production|
|PSMN4R0-30YLD||N-channel 30 V, 4.0 mΩ logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|
|PSMN4R2-60PL||N-channel 60 V, 3.9 mΩ logic level MOSFET in SOT78||Production|
|PSMN6R0-30YLD||N-channel 30 V, 6.0 mΩ logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|
|PSMN7R5-30YLD||N-channel 30 V, 7.5 mΩ logic level MOSFET in LFPAK56 using NextPowerS3 Technology||Production|