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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Beskrivning Pris 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-artikelnummer 389-299
Tillv. art.nrUCC28600D
VarumärkeTexas Instruments
10,464 kr
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130 kHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 21 V
RS-artikelnummer 145-1163
Tillv. art.nrUCC28600D
VarumärkeTexas Instruments
8,715 kr
Each (In a Tube of 75)
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130 kHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 21 V
RS-artikelnummer 162-6749
Tillv. art.nrTL494CNSR
VarumärkeTexas Instruments
2,18 kr
Each (On a Reel of 2000)
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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-artikelnummer 809-5393
Tillv. art.nrTL494CNSR
VarumärkeTexas Instruments
5,026 kr
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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-artikelnummer 200-6779
Tillv. art.nrTL5001CP
VarumärkeTexas Instruments
17,68 kr
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500 kHz - - - 2.1 mA - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
RS-artikelnummer 162-4341
Tillv. art.nrTL5001CP
VarumärkeTexas Instruments
14,703 kr
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500 kHz - - - 2.1 mA - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
RS-artikelnummer 162-8594
Tillv. art.nrLM5039MH/NOPB
VarumärkeTexas Instruments
34,80 kr
Each (In a Tube of 73)
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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-artikelnummer 178-9135
Tillv. art.nrSG3524D
VarumärkeTexas Instruments
8,179 kr
Each (In a Tube of 40)
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450 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS-artikelnummer 761-5980
Tillv. art.nrLM5070MTC-50/NOPB
VarumärkeTexas Instruments
31,12 kr
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- - 800mA 800mA 3 mA - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm 75 V
RS-artikelnummer 462-1083
Tillv. art.nrTL1451ACD
VarumärkeTexas Instruments
17,516 kr
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- - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm -
RS-artikelnummer 462-2418
Tillv. art.nrTL5001ACD
VarumärkeTexas Instruments
10,596 kr
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- - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS-artikelnummer 824-6914
Tillv. art.nrLM5039MH/NOPB
VarumärkeTexas Instruments
41,775 kr
Each (In a Pack of 2)
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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-artikelnummer 527-322
Tillv. art.nrUCC2808D-1
VarumärkeTexas Instruments
25,44 kr
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1 MHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 15 V
RS-artikelnummer 526-947
Tillv. art.nrSG2524DR
VarumärkeTexas Instruments
8,375 kr
Each (In a Pack of 10)
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450 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS-artikelnummer 121-8257
Tillv. art.nrLM5022MM/NOPB
VarumärkeTexas Instruments
12,519 kr
Each (On a Reel of 1000)
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2 MHz - - - 4 mA - Surface Mount MSOP 10 3 x 3 x 0.86mm 3mm 3mm 0.86mm -
RS-artikelnummer 812-4378
Tillv. art.nrUCD9224RGZT
VarumärkeTexas Instruments
38,10 kr
1 Tape of 1
Tape(s)
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-artikelnummer 162-7708
Tillv. art.nrLM5046MH/NOPB
VarumärkeTexas Instruments
44,848 kr
Each (In a Tube of 48)
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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-artikelnummer 197-7630
Tillv. art.nrUCC3895DW
VarumärkeTexas Instruments
47,87 kr
Each
Enheter
500 KHz 0.25mA -0.03mA 0.375mA 30 mA - - SOIC 20 - - - - -
RS-artikelnummer 812-4353
Tillv. art.nrUCC28950PW
VarumärkeTexas Instruments
70,93 kr
Each
Enheter
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-artikelnummer 178-8826
Tillv. art.nrTL1451ACPWR
VarumärkeTexas Instruments
17,544 kr
Each (In a Tube of 90)
Enheter
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