PWM Controllers

Pulse width modulation (PWM) is a modulation technique that is used to encode a message into a pulsing signal. PWM controllers encode data onto the duty cycle (the ratio or percentage of one period in which a signal or system is active). The encoded data is commonly used in power electronic systems to regulate the amount of power applied to the load. 


How do PWM controllers work?

A PMC will use voltage feedback to ensure that the voltage applied to a load is precisely controlled. The controller will supervise the switching operation to regulate the output voltage by comparing output voltage with the desired output to derive the correct voltage. They are popular because of their high efficiency over a wide voltage input range.


A PWM controller can also be integrated with a hot swap controller for enhanced power monitoring accuracy.


What are PWM controllers used for?

PWM controllers are common in many applications including variable speed fans, house dimmer switches and electric cookers. 


...
Read more Read less

Filters

Viewing 21 - 40 of 98 products
Results per page
Description Price Maximum Switching Frequency Start-up Supply Current Maximum Source Current Maximum Sink Current Maximum Supply Current Zero Power Detection Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Supply Voltage
RS Stock No. 168-4860
Mfr. Part No.UCC2808D-1
MYR10.27
Each (In a Tube of 75)
units
1 MHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 15 V
RS Stock No. 825-5488
Mfr. Part No.UCC28251RGPT
MYR18.68
Each (In a Pack of 2)
units
1.8 MHz 275µA 8mA 9mA 275 μA Yes Surface Mount QFN 20 4.15 x 4.15 x 0.95mm 4.15mm 4.15mm 0.95mm 17 V
RS Stock No. 162-6749
Mfr. Part No.TL494CNSR
MYR1.961
Each (On a Reel of 2000)
units
300 kHz 9 → 15mA 200mA 200mA 3.5 mA Yes Surface Mount SOIC 16 10.5 x 5.6 x 1.85mm 10.5mm 5.6mm 1.85mm 40 V
RS Stock No. 168-4857
Mfr. Part No.SG2524DR
MYR1.903
Each (On a Reel of 2500)
units
450 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS Stock No. 779-9173
Mfr. Part No.LT1245CS8#PBF
MYR22.055
Each (In a Pack of 2)
units
500 kHz 250µA -0.75mA 10mA 1 A - Surface Mount SOIC 8 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 5.075 V
RS Stock No. 809-5393
Mfr. Part No.TL494CNSR
MYR2.45
Each (In a Pack of 5)
units
300 kHz 9 → 15mA 200mA 200mA 3.5 mA Yes Surface Mount SOIC 16 10.5 x 5.6 x 1.85mm 10.5mm 5.6mm 1.85mm 40 V
RS Stock No. 170-8911
Mfr. Part No.AP3105NVKTR-G1
MYR0.733
Each (On a Reel of 3000)
units
70 kHz 20µA 110µA - 2 mA - Surface Mount SOT-23 6 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 25 V
RS Stock No. 181-348
Mfr. Part No.LM5022MM/NOPB
MYR10.184
Each (In a Pack of 5)
units
2 MHz - - - 4 mA - Surface Mount MSOP 10 3 x 3 x 0.86mm 3mm 3mm 0.86mm -
RS Stock No. 125-0803
Mfr. Part No.ISL68134IRAZ-T7A
BrandIntersil
MYR40.29
Each
units
1000 kHz - - - 63 mA - Surface Mount TQFN 40 5 x 5 x 0.7mm 5mm 5mm 0.7mm +3.3 V
RS Stock No. 170-8156
Mfr. Part No.ISL68134IRAZ-T7A
BrandIntersil
MYR28.79
Each (On a Reel of 250)
units
1000 kHz - - - 63 mA - Surface Mount TQFN 40 5 x 5 x 0.7mm 5mm 5mm 0.7mm +3.3 V
RS Stock No. 862-9384
Mfr. Part No.KA7553A
MYR2.92
Each (In a Pack of 10)
units
600 kHz 15mA -5µA 65µA 1.8 mA - Through Hole PDIP 8 9.6 x 6.4 x 3.4mm 9.6mm 6.4mm 3.4mm 30 V
RS Stock No. 527-322
Mfr. Part No.UCC2808D-1
MYR11.45
Each
units
1 MHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 15 V
RS Stock No. 162-4341
Mfr. Part No.TL5001CP
MYR7.193
Each (In a Tube of 50)
units
500 kHz - - - 2.1 mA - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
RS Stock No. 121-7273
Mfr. Part No.ISL8117FRZ-T7A
BrandIntersil
MYR19.30
Each
units
2375 kHz - 2A 2A 4 mA Yes Surface Mount QFN 16 4 x 4 x 0.9mm 4mm 4mm 0.9mm 60 V
RS Stock No. 165-2137
Mfr. Part No.MCP1630V-E/MS
BrandMicrochip
MYR3.988
Each (In a Tube of 100)
units
1 MHz - -9mA 11mA 4.5 mA - Surface Mount MSOP 8 3 x 3 x 0.95mm 3mm 3mm 0.95mm 5.5 V
RS Stock No. 162-4865
Mfr. Part No.TL5001ACD
MYR8.49
Each (In a Tube of 75)
units
- - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS Stock No. 170-8147
Mfr. Part No.ISL8117FRZ-T7A
BrandIntersil
MYR13.50
Each (On a Reel of 250)
units
2375 kHz - 2A 2A 4 mA Yes Surface Mount QFN 16 4 x 4 x 0.9mm 4mm 4mm 0.9mm 60 V
RS Stock No. 170-8910
Mfr. Part No.AP3105NAKTR-G1
MYR0.932
Each (On a Reel of 3000)
units
70 kHz 20µA 110µA - 2 mA - Surface Mount SOT-23 6 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 25 V
RS Stock No. 774-7422
Mfr. Part No.MCP1630V-E/MS
BrandMicrochip
MYR4.834
Each (In a Bag of 5)
units
1 MHz - -9mA 11mA 4.5 mA - Surface Mount MSOP 8 3 x 3 x 0.95mm 3mm 3mm 0.95mm 5.5 V
RS Stock No. 197-7630
Mfr. Part No.UCC3895DW
MYR23.86
Each
units
500 KHz 0.25mA -0.03mA 0.375mA 30 mA - - SOIC 20 - - - - -
Related Products
Power supply secondary side, synchronous rectification controllers. Fixed ...
Description:
Power supply secondary side, synchronous rectification controllers. Fixed frequency flyback and forward PWM controllers.
The VIPerPlus series of high-voltage converters combine an ...
Description:
The VIPerPlus series of high-voltage converters combine an 800V avalanche-rugged MOSFET, that allows ultra-wide range mains voltage input, with a leading-edge PWM controller. VIPerPlus fixed frequency off-line converters enable SMPS designs meeting the most demanding energy saving regulations with enhanced ...
The high-performance and high-density single-phase synchronous PWM step-down ...
Description:
The high-performance and high-density single-phase synchronous PWM step-down controllers are the ideal solution for computing, networking, DC-DC modules and telecommunication equipment.
Digital multiphase controllers combined with smart power stages ...
Description:
Digital multiphase controllers combined with smart power stages provide up to seven phases assignable in any combination across two outputs. ISL68124: Digital Dual Output, 4-Phase Configurable, PWM Controller with PMBusISL68127: Digital Dual Output, 7-Phase Configurable, PWM Controller with PMBusISL68134: Digital ...