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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รายละเอียดสินค้า / Description ราคา / Price 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 Stock No. 517-2986
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TL494IN
THB19.476
Each: (In a Pack of 5)
Units
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS Stock No. 162-7708
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM5046MH/NOPB
THB173.42
Each (In a Tube of 48)
Units
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 Stock No. 811-5661
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM5046MH/NOPB
THB194.23
Each
Units
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 Stock No. 920-3479
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TL494IN
THB18.432
Each (In a Tube of 25)
Units
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS Stock No. 165-2137
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP1630V-E/MS
Brand :Microchip
THB26.039
Each (In a Tube of 100)
Units
1 MHz - -9mA 11mA 4.5 mA - Surface Mount MSOP 8 3 x 3 x 0.95mm 3mm 3mm 0.95mm 5.5 V
RS Stock No. 786-2451
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.NCP3020ADR2G
THB26.176
Each: (In a Pack of 10)
Units
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 Stock No. 652-5779
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.UCC2895DW
THB274.40
Each
Units
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 Stock No. 415-1045
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.L6598D
THB73.76
Each
Units
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 Stock No. 812-4353
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.UCC28950PW
THB268.87
Each
Units
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 Stock No. 121-9164
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TL494IDR
THB6.71
Each (On a Reel of 2500)
Units
300 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS Stock No. 162-9515
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.NCP3020ADR2G
THB12.69
Each (On a Reel of 2500)
Units
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 Stock No. 661-6875
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TL494IDR
THB19.63
Each: (In a Pack of 5)
Units
300 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS Stock No. 168-6083
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.L6598D
THB63.92
Each (In a Tube of 50)
Units
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 Stock No. 162-8594
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM5039MH/NOPB
THB134.82
Each (In a Tube of 73)
Units
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 Stock No. 121-9013
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.UCC2895DW
THB225.20
Each (In a Tube of 25)
Units
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 Stock No. 774-7422
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP1630V-E/MS
Brand :Microchip
THB35.54
Each (In a Bag of 5)
Units
1 MHz - -9mA 11mA 4.5 mA - Surface Mount MSOP 8 3 x 3 x 0.95mm 3mm 3mm 0.95mm 5.5 V
RS Stock No. 824-6914
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM5039MH/NOPB
THB149.83
Each: (In a Pack of 2)
Units
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 Stock No. 121-9385
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.UCC28950PW
THB248.75
Each (In a Tube of 60)
Units
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 Stock No. 162-5092
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM5026MT/NOPB
THB103.099
Each (In a Tube of 92)
Units
590 kHz - - - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm -
RS Stock No. 165-2082
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP1631-E/ML
Brand :Microchip
THB39.056
Each (In a Tube of 91)
Units
2 MHz - -9.8mA 12mA - - Surface Mount QFN 20 4 x 4 x 1mm 4mm 4mm 1mm 5.5 V
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