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. 168-4860
FabrikantnummerUCC2808D-1
€ 2,221
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. 686-8433
FabrikantnummerL6598
€ 2,045
Each (In a Pack of 2)
Aantal stuks
400 kHz 0.25mA 250mA 450mA 25 mA - Through Hole PDIP 16 20 x 7.1 x 5.1mm 20mm 7.1mm 5.1mm 16.6 V
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. 415-1045
FabrikantnummerL6598D
€ 2,20
Each
Aantal stuks
400 kHz 0.25mA 250mA 450mA 25 mA - Surface Mount SOIC 16 10 x 4 x 1.64mm 10mm 4mm 1.64mm 16.6 V
RS-stocknr. 168-6083
FabrikantnummerL6598D
€ 1,779
Each (In a Tube of 50)
Aantal stuks
400 kHz 0.25mA 250mA 450mA 25 mA - Surface Mount SOIC 16 10 x 4 x 1.64mm 10mm 4mm 1.64mm 16.6 V
RS-stocknr. 168-6471
FabrikantnummerL6598
€ 1,779
Each (In a Tube of 25)
Aantal stuks
400 kHz 0.25mA 250mA 450mA 25 mA - Through Hole PDIP 16 20 x 7.1 x 5.1mm 20mm 7.1mm 5.1mm 16.6 V
RS-stocknr. 809-5393
FabrikantnummerTL494CNSR
€ 0,528
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. 162-6749
FabrikantnummerTL494CNSR
€ 0,205
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
€ 3,659
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
€ 4,32
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. 145-0921
FabrikantnummerLM5070MTC-50/NOPB
€ 2,894
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. 121-9164
FabrikantnummerTL494IDR
€ 0,167
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. 761-5980
FabrikantnummerLM5070MTC-50/NOPB
€ 3,21
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. 661-6875
FabrikantnummerTL494IDR
€ 0,464
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. 528-123
FabrikantnummerTL494CN
€ 0,568
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. 389-299
FabrikantnummerUCC28600D
€ 1,364
Each (In a Pack of 5)
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. 162-9009
FabrikantnummerNCP3011DTBR2G
FabrikantON Semiconductor
€ 0,417
Each (On a Reel of 2500)
Aantal stuks
400 kHz - 90µA 100µA 12 mA - Surface Mount TSSOP 14 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm 28 V
RS-stocknr. 177-7275
FabrikantnummerLT1245CS8#PBF
FabrikantAnalog Devices
€ 3,627
Each (In a Tube of 100)
Aantal stuks
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-stocknr. 517-0716
FabrikantnummerSG2524D
€ 1,022
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. 823-7884
FabrikantnummerMCP1631-E/ML
FabrikantMicrochip
€ 1,338
Each (In a Pack of 5)
Aantal stuks
2 MHz - -9.8mA 12mA - - Surface Mount QFN 20 4 x 4 x 1mm 4mm 4mm 1mm 5.5 V
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