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. 809-5393
FabrikantnummerTL494CNSR
0,498 €
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. 779-9173
FabrikantnummerLT1245CS8#PBF
FabrikantAnalog Devices
4,73 €
Each (In a Pack of 2)
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. 527-322
FabrikantnummerUCC2808D-1
2,26 €
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. 170-8154
FabrikantnummerISL68124IRAZ-T7A
FabrikantIntersil
5,449 €
Each (On a Reel of 250)
Aantal stuks
1000 kHz - - - 63 mA - Surface Mount TQFN 40 5 x 5 x 0.7mm 5mm 5mm 0.7mm +3.3 V
RS-stocknr. 145-1180
FabrikantnummerSG2524D
0,808 €
Each (In a Tube of 40)
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. 526-947
FabrikantnummerSG2524DR
0,844 €
Each (In a Pack of 10)
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. 145-0921
FabrikantnummerLM5070MTC-50/NOPB
2,565 €
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. 168-4860
FabrikantnummerUCC2808D-1
1,916 €
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. 162-7708
FabrikantnummerLM5046MH/NOPB
4,435 €
Each (In a Tube of 48)
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. 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. 779-9164
FabrikantnummerLT1241CS8#PBF
FabrikantAnalog Devices
4,565 €
Each (In a Pack of 2)
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. 162-9515
FabrikantnummerNCP3020ADR2G
FabrikantON Semiconductor
0,316 €
Each (On a Reel of 2500)
Aantal stuks
350 kHz 5.5mA 100µA 100µA 8 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 28 V
RS-stocknr. 178-9135
FabrikantnummerSG3524D
0,808 €
Each (In a Tube of 40)
Aantal stuks
450 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
Nieuw
RS-stocknr. 202-5464
FabrikantnummerA6727TR
2,092 €
Each (In a Pack of 5)
Aantal stuks
300 kHz 0.5mA 1500mA 0.065mA 6 mA - - SO-8 8 - - - - -
RS-stocknr. 125-0803
FabrikantnummerISL68134IRAZ-T7A
FabrikantIntersil
8,86 €
Each
Aantal stuks
1000 kHz - - - 63 mA - Surface Mount TQFN 40 5 x 5 x 0.7mm 5mm 5mm 0.7mm +3.3 V
RS-stocknr. 162-9009
FabrikantnummerNCP3011DTBR2G
FabrikantON Semiconductor
0,368 €
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. 166-0829
FabrikantnummerICE2QS03GXUMA1
FabrikantInfineon
0,448 €
Each (On a Reel of 2500)
Aantal stuks
65 kHz 550µA - - 2.3 mA Yes Surface Mount DSO 8 5 x 4 x 1.65mm 5mm 4mm 1.65mm 27 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. 126-2018
FabrikantnummerMCP19124-E/MJ
FabrikantMicrochip
2,04 €
Each
Aantal stuks
2 MHz - 0.5 A, 1 A 0.5 A, 1 A - - Surface Mount QFN 24 4 x 4 x 0.85mm 4mm 4mm 0.85mm 42 V
RS-stocknr. 145-7406
FabrikantnummerLT1241CS8#PBF
FabrikantAnalog Devices
3,037 €
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
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