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. 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. 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. 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. 824-6914
FabrikantnummerLM5039MH/NOPB
€ 4,02
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. 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. 761-5980
FabrikantnummerLM5070MTC-50/NOPB
€ 2,99
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. 121-9164
FabrikantnummerTL494IDR
€ 0,182
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
€ 2,723
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. 661-6875
FabrikantnummerTL494IDR
€ 0,552
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
€ 0,539
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. 655-4389
FabrikantnummerLM5026MT/NOPB
€ 2,894
Each (In a Pack of 5)
Aantal stuks
590 kHz - - - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm -
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. 162-5092
FabrikantnummerLM5026MT/NOPB
€ 2,63
Each (In a Tube of 92)
Aantal stuks
590 kHz - - - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm -
RS-stocknr. 168-4856
FabrikantnummerSG2524N
€ 0,787
Each (In a Tube of 25)
Aantal stuks
450 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
€ 1,186
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. 825-5488
FabrikantnummerUCC28251RGPT
€ 3,935
Each (In a Pack of 2)
Aantal stuks
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-stocknr. 162-7999
FabrikantnummerUCD9224RGZT
€ 3,587
Each (On a Reel of 250)
Aantal stuks
2 MHz - - - 65 mA Yes Surface Mount QFN 48 7.15 x 7.15 x 0.95mm 7.15mm 7.15mm 0.95mm 3.6 V
RS-stocknr. 162-4341
FabrikantnummerTL5001CP
€ 1,529
Each (In a Tube of 50)
Aantal stuks
500 kHz - - - 2.1 mA - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -