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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Description Prix 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
N° de stock RS 145-4653
Référence fabricantKA7553A
0,32 €
Each (In a Tube of 50)
Unité
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
N° de stock RS 862-9384
Référence fabricantKA7553A
0,355 €
Each (In a Pack of 10)
Unité
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
N° de stock RS 162-4341
Référence fabricantTL5001CP
1,529 €
Each (In a Tube of 50)
Unité
500 kHz - - - 2.1 mA - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
N° de stock RS 200-6779
Référence fabricantTL5001CP
1,82 €
Each
Unité
500 kHz - - - 2.1 mA - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
N° de stock RS 168-6083
Référence fabricantL6598D
1,779 €
Each (In a Tube of 50)
Unité
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
N° de stock RS 517-2986
Référence fabricantTL494IN
0,646 €
Each (In a Pack of 5)
Unité
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
N° de stock RS 920-3479
Référence fabricantTL494IN
0,539 €
Each (In a Tube of 25)
Unité
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
N° de stock RS 415-1045
Référence fabricantL6598D
2,20 €
Each
Unité
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
N° de stock RS 655-4389
Référence fabricantLM5026MT/NOPB
3,05 €
Each (In a Pack of 5)
Unité
590 kHz - - - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm -
N° de stock RS 661-8449
Référence fabricantTL1451ACPW
1,80 €
Each
Unité
- - - - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm -
N° de stock RS 877-2826
Référence fabricantSG2525AN
1,102 €
Each (In a Pack of 10)
Unité
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
N° de stock RS 686-8433
Référence fabricantL6598
2,045 €
Each (In a Pack of 2)
Unité
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
N° de stock RS 178-8826
Référence fabricantTL1451ACPWR
1,768 €
Each (In a Tube of 90)
Unité
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
N° de stock RS 162-5092
Référence fabricantLM5026MT/NOPB
2,63 €
Each (In a Tube of 92)
Unité
590 kHz - - - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm -
N° de stock RS 528-123
Référence fabricantTL494CN
0,568 €
Each (In a Tube of 25)
Unité
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
N° de stock RS 168-8876
Référence fabricantSG2525AN
1,002 €
Each (In a Tube of 25)
Unité
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
N° de stock RS 145-4652
Référence fabricantKA7552A
0,639 €
Each (In a Tube of 50)
Unité
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
N° de stock RS 825-3533
Référence fabricantTL1451ACPWR
1,50 €
Each (In a Pack of 5)
Unité
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
N° de stock RS 862-9375
Référence fabricantKA7552A
0,703 €
Each (In a Pack of 10)
Unité
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
N° de stock RS 168-6471
Référence fabricantL6598
1,779 €
Each (In a Tube of 25)
Unité
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