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 177-7275
Référence fabricantLT1245CS8#PBF
3,627 €
Each (In a Tube of 100)
Unité
500 kHz 250µA -0.75mA 10mA 1 A - Surface Mount SOIC 8 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 5.075 V
N° de stock RS 823-0016
Référence fabricantLTC3723EGN-1#PBF
9,44 €
Each
Unité
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
N° de stock RS 155-7734
Référence fabricantLTC3723EGN-1#PBF
6,414 €
Each (In a Tube of 100)
Unité
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
N° de stock RS 779-9173
Référence fabricantLT1245CS8#PBF
4,655 €
Each (In a Pack of 2)
Unité
500 kHz 250µA -0.75mA 10mA 1 A - Surface Mount SOIC 8 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 5.075 V
N° de stock RS 145-7406
Référence fabricantLT1241CS8#PBF
3,107 €
Each (In a Tube of 100)
Unité
500 kHz 250µA -0.75mA 10mA 1 A - Surface Mount SOIC 8 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 5.075 V
N° de stock RS 779-9164
Référence fabricantLT1241CS8#PBF
4,565 €
Each (In a Pack of 2)
Unité
500 kHz 250µA -0.75mA 10mA 1 A - Surface Mount SOIC 8 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 5.075 V