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. 415-1045
FabrikantnummerL6598D
2,20 €
Each
Aantal stuks
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-stocknr. 168-6083
FabrikantnummerL6598D
1,779 €
Each (In a Tube of 50)
Aantal stuks
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-stocknr. 686-8433
FabrikantnummerL6598
2,045 €
Each (In a Pack of 2)
Aantal stuks
400 kHz 0.25mA 250mA 450mA 25 mA - Through Hole PDIP 16 20 x 7.1 x 5.1mm 20mm 7.1mm 5.1mm 16.6 V
RS-stocknr. 877-2826
FabrikantnummerSG2525AN
1,151 €
Each (In a Pack of 10)
Aantal stuks
400 kHz 80µA 400mA 400mA 20 mA - Through Hole PDIP 16 20 x 7.1 x 5.1mm 20mm 7.1mm 5.1mm 35 V
RS-stocknr. 168-6471
FabrikantnummerL6598
1,779 €
Each (In a Tube of 25)
Aantal stuks
400 kHz 0.25mA 250mA 450mA 25 mA - Through Hole PDIP 16 20 x 7.1 x 5.1mm 20mm 7.1mm 5.1mm 16.6 V
RS-stocknr. 168-8876
FabrikantnummerSG2525AN
1,046 €
Each (In a Tube of 25)
Aantal stuks
400 kHz 80µA 400mA 400mA 20 mA - Through Hole PDIP 16 20 x 7.1 x 5.1mm 20mm 7.1mm 5.1mm 35 V
RS-stocknr. 175-1178
FabrikantnummerSTCH03TR
1,137 €
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Aantal stuks
196 kHz 0.9mA - - 2.9 mA Yes Surface Mount SO8 8 5 x 6.2 x 1.5mm 5mm 4mm 1.5mm 23 V
RS-stocknr. 175-1176
FabrikantnummerSTCH03TR
0,528 €
Each (On a Reel of 2500)
Aantal stuks
196 kHz 0.9mA - - 2.9 mA Yes Surface Mount SO8 8 5 x 6.2 x 1.5mm 5mm 4mm 1.5mm 23 V
RS-stocknr. 175-1177
FabrikantnummerEVALKITSTKNX
162,85 €
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16 (Microcontroller) MHz - - - - - - - - - 155mm 70mm - -