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. 


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Omschrijving Prijs 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-stocknr. 527-322
FabrikantnummerUCC2808D-1
€ 2,46
Each
Aantal stuks
1 MHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 15 V
RS-stocknr. 168-4860
FabrikantnummerUCC2808D-1
€ 1,923
Each (In a Tube of 75)
Aantal stuks
1 MHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 15 V
RS-stocknr. 162-6749
FabrikantnummerTL494CNSR
€ 0,208
Each (On a Reel of 2000)
Aantal stuks
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-stocknr. 162-8594
FabrikantnummerLM5039MH/NOPB
€ 3,366
Each (In a Tube of 73)
Aantal stuks
2 MHz 70µA 6mA 2A 6 mA Yes Surface Mount HTSSOP 20 6.5 x 4.4 x 0.9mm 6.5mm 4.4mm 0.9mm 105 V
RS-stocknr. 824-6914
FabrikantnummerLM5039MH/NOPB
€ 4,04
Each (In a Pack of 2)
Aantal stuks
2 MHz 70µA 6mA 2A 6 mA Yes Surface Mount HTSSOP 20 6.5 x 4.4 x 0.9mm 6.5mm 4.4mm 0.9mm 105 V
RS-stocknr. 809-5393
FabrikantnummerTL494CNSR
€ 0,486
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 661-6875
FabrikantnummerTL494IDR
€ 0,43
Each (In a Pack of 5)
Aantal stuks
300 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS-stocknr. 121-9164
FabrikantnummerTL494IDR
€ 0,124
Each (On a Reel of 2500)
Aantal stuks
300 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS-stocknr. 145-0921
FabrikantnummerLM5070MTC-50/NOPB
€ 2,506
Each (In a Tube of 92)
Aantal stuks
- - 800mA 800mA 3 mA - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm 75 V
RS-stocknr. 761-5980
FabrikantnummerLM5070MTC-50/NOPB
€ 3,01
Each
Aantal stuks
- - 800mA 800mA 3 mA - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm 75 V
RS-stocknr. 528-123
FabrikantnummerTL494CN
€ 0,341
Each (In a Tube of 25)
Aantal stuks
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS-stocknr. 812-4353
FabrikantnummerUCC28950PW
€ 6,86
Each
Aantal stuks
1 MHz 270µA -0.5mA 5.75mA 10 mA Yes Surface Mount TSSOP 24 7.9 x 4.5 x 1.05mm 7.9mm 4.5mm 1.05mm 17 V
RS-stocknr. 121-8257
FabrikantnummerLM5022MM/NOPB
€ 1,153
Each (On a Reel of 1000)
Aantal stuks
2 MHz - - - 4 mA - Surface Mount MSOP 10 3 x 3 x 0.86mm 3mm 3mm 0.86mm -
RS-stocknr. 181-348
FabrikantnummerLM5022MM/NOPB
€ 2,22
Each (In a Pack of 5)
Aantal stuks
2 MHz - - - 4 mA - Surface Mount MSOP 10 3 x 3 x 0.86mm 3mm 3mm 0.86mm -
RS-stocknr. 462-2418
FabrikantnummerTL5001ACD
€ 1,02
Each (In a Pack of 5)
Aantal stuks
- - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS-stocknr. 168-4857
FabrikantnummerSG2524DR
€ 0,372
Each (On a Reel of 2500)
Aantal stuks
450 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS-stocknr. 517-0716
FabrikantnummerSG2524D
€ 0,95
Each (In a Pack of 5)
Aantal stuks
450 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS-stocknr. 920-3479
FabrikantnummerTL494IN
€ 0,492
Each (In a Tube of 25)
Aantal stuks
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS-stocknr. 145-1163
FabrikantnummerUCC28600D
€ 0,843
Each (In a Tube of 75)
Aantal stuks
130 kHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 21 V
RS-stocknr. 121-9385
FabrikantnummerUCC28950PW
€ 5,719
Each (In a Tube of 60)
Aantal stuks
1 MHz 270µA -0.5mA 5.75mA 10 mA Yes Surface Mount TSSOP 24 7.9 x 4.5 x 1.05mm 7.9mm 4.5mm 1.05mm 17 V