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 823-0016
Tillv. art.nrLTC3723EGN-1#PBF
VarumärkeAnalog Devices
99,88 kr
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1 MHz 230µA 700µA 5mA 8 mA - Surface Mount SSOP 16 4.978 x 3.988 x 1.501mm 4.98mm 3.988mm 1.501mm 9.5 V
RS-artikelnummer 155-7734
Tillv. art.nrLTC3723EGN-1#PBF
VarumärkeAnalog Devices
63,346 kr
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1 MHz 230µA 700µA 5mA 8 mA - Surface Mount SSOP 16 4.978 x 3.988 x 1.501mm 4.98mm 3.988mm 1.501mm 9.5 V
RS-artikelnummer 145-1163
Tillv. art.nrUCC28600D
VarumärkeTexas Instruments
11,945 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 389-299
Tillv. art.nrUCC28600D
VarumärkeTexas Instruments
14,104 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 200-6779
Tillv. art.nrTL5001CP
VarumärkeTexas Instruments
18,30 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 862-9375
Tillv. art.nrKA7552A
VarumärkeON Semiconductor
7,486 kr
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600 kHz 15mA -5µA 65µA 1.8 mA - Through Hole PDIP 8 9.6 x 6.4 x 3.4mm 9.6mm 6.4mm 3.4mm 30 V
RS-artikelnummer 162-4341
Tillv. art.nrTL5001CP
VarumärkeTexas Instruments
15,81 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 162-9674
Tillv. art.nrTL494CDR2G
VarumärkeON Semiconductor
2,229 kr
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200 kHz 7mA -4mA 0.7mA 15 mA - Surface Mount SOIC 16 10 x 4 x 1.5mm 10mm 4mm 1.5mm 40 V
RS-artikelnummer 145-4652
Tillv. art.nrKA7552A
VarumärkeON Semiconductor
6,80 kr
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600 kHz 15mA -5µA 65µA 1.8 mA - Through Hole PDIP 8 9.6 x 6.4 x 3.4mm 9.6mm 6.4mm 3.4mm 30 V
RS-artikelnummer 162-6749
Tillv. art.nrTL494CNSR
VarumärkeTexas Instruments
2,56 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 809-5393
Tillv. art.nrTL494CNSR
VarumärkeTexas Instruments
5,336 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 786-2543
Tillv. art.nrTL494CDR2G
VarumärkeON Semiconductor
5,242 kr
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200 kHz 7mA -4mA 0.7mA 15 mA - Surface Mount SOIC 16 10 x 4 x 1.5mm 10mm 4mm 1.5mm 40 V
RS-artikelnummer 526-937
Tillv. art.nrSG2524N
VarumärkeTexas Instruments
8,954 kr
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450 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS-artikelnummer 121-6370
Tillv. art.nrNCP1031DR2G
VarumärkeON Semiconductor
7,722 kr
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325 kHz 3mA 140µA 900µA 4 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 16 V
RS-artikelnummer 125-0802
Tillv. art.nrISL68127IRAZ-T7A
VarumärkeIntersil
48,50 kr
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1000 kHz - - - 90.5 mA - Surface Mount QFN 48 6 x 6 x 0.95mm 6mm 6mm 0.95mm +3.3 V
RS-artikelnummer 162-8185
Tillv. art.nrLM25037QMT/NOPB
VarumärkeTexas Instruments
32,063 kr
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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-artikelnummer 121-7272
Tillv. art.nrISL8117AFRZ-T7A
VarumärkeIntersil
19,91 kr
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2375 kHz - 2A 4A 4 mA Yes Surface Mount QFN 16 4 x 4 x 0.9mm 4mm 4mm 0.9mm 60 V
RS-artikelnummer 125-0801
Tillv. art.nrISL68124IRAZ-T7A
VarumärkeIntersil
82,93 kr
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1000 kHz - - - 63 mA - Surface Mount TQFN 40 5 x 5 x 0.7mm 5mm 5mm 0.7mm +3.3 V
RS-artikelnummer 823-7884
Tillv. art.nrMCP1631-E/ML
VarumärkeMicrochip
8,684 kr
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2 MHz - -9.8mA 12mA - - Surface Mount QFN 20 4 x 4 x 1mm 4mm 4mm 1mm 5.5 V
RS-artikelnummer 181-348
Tillv. art.nrLM5022MM/NOPB
VarumärkeTexas Instruments
23,078 kr
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2 MHz - - - 4 mA - Surface Mount MSOP 10 3 x 3 x 0.86mm 3mm 3mm 0.86mm -
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