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. 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 -
RS-stocknr. 200-6779
FabrikantnummerTL5001CP
2,72 €
Each
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 -
RS-stocknr. 517-2986
FabrikantnummerTL494IN
0,646 €
Each (In a Pack of 5)
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. 825-3533
FabrikantnummerTL1451ACPWR
1,50 €
Each (In a Pack of 5)
Aantal stuks
500 kHz - -20µA 1.6mA 1.8 mA Yes Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm 50 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. 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. 526-937
FabrikantnummerSG2524N
0,866 €
Each (In a Pack of 10)
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. 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. 661-8449
FabrikantnummerTL1451ACPW
2,44 €
Each
Aantal stuks
- - - - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm -
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. 178-8826
FabrikantnummerTL1451ACPWR
1,768 €
Each (In a Tube of 90)
Aantal stuks
500 kHz - -20µA 1.6mA 1.8 mA Yes Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm 50 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. 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. 162-8185
FabrikantnummerLM25037QMT/NOPB
3,101 €
Each (In a Tube of 92)
Aantal stuks
578 kHz 80µA 1.2A 1.2A 4 mA - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm 75 V
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. 652-5779
FabrikantnummerUCC2895DW
7,76 €
Each
Aantal stuks
1 MHz 150µA - - - - Surface Mount SOIC 20 12.8 x 7.52 x 2.35mm 12.8mm 7.52mm 2.35mm 16.5 V
RS-stocknr. 811-5661
FabrikantnummerLM5046MH/NOPB
5,17 €
Each
Aantal stuks
540 kHz 80mA 1.5A 2A 4.6 mA Yes Surface Mount HTSSOP 28 9.7 x 4.4 x 0.9mm 9.7mm 4.4mm 0.9mm 100 V
RS-stocknr. 162-8863
FabrikantnummerUCC28251RGPT
2,685 €
Each (On a Reel of 250)
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. 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