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. 


...
Read more Read less

Filters

Viewing 1 - 20 of 100 products
Results per page
Description Price 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 Stock No. 528-123
Mfr. Part No.TL494CN
kr 4,502
Each (In a Tube of 25)
Units
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS Stock No. 121-8257
Mfr. Part No.LM5022MM/NOPB
kr 11,916
Each (On a Reel of 1000)
Units
2 MHz - - - 4 mA - Surface Mount MSOP 10 3 x 3 x 0.86mm 3mm 3mm 0.86mm -
RS Stock No. 168-6083
Mfr. Part No.L6598D
kr 18,273
Each (In a Tube of 50)
Units
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 Stock No. 805-1804
Mfr. Part No.NCP3011DTBR2G
kr 4,344
Each (On a Tape of 10)
Units
400 kHz - 90µA 100µA 12 mA - Surface Mount TSSOP 14 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm 28 V
RS Stock No. 162-8594
Mfr. Part No.LM5039MH/NOPB
kr 39,136
Each (In a Tube of 73)
Units
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 Stock No. 920-3479
Mfr. Part No.TL494IN
kr 5,372
Each (In a Tube of 25)
Units
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS Stock No. 823-7884
Mfr. Part No.MCP1631-E/ML
BrandMicrochip
kr 7,964
Each (In a Pack of 5)
Units
2 MHz - -9.8mA 12mA - - Surface Mount QFN 20 4 x 4 x 1mm 4mm 4mm 1mm 5.5 V
RS Stock No. 786-2543
Mfr. Part No.TL494CDR2G
kr 2,004
Each (In a Pack of 10)
Units
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 Stock No. 168-4860
Mfr. Part No.UCC2808D-1
kr 22,14
Each (In a Tube of 75)
Units
1 MHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 15 V
RS Stock No. 517-2150
Mfr. Part No.SG3524D
kr 10,11
Each (In a Pack of 5)
Units
450 kHz - - - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm 1.58mm 40 V
RS Stock No. 655-4389
Mfr. Part No.LM5026MT/NOPB
kr 30,828
Each (In a Pack of 5)
Units
590 kHz - - - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5mm 4.4mm 0.9mm -
RS Stock No. 121-6370
Mfr. Part No.NCP1031DR2G
kr 8,25
Each (On a Reel of 2500)
Units
325 kHz 3mA 140µA 900µA 4 mA - Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 16 V
RS Stock No. 170-8910
Mfr. Part No.AP3105NAKTR-G1
kr 1,616
Each (On a Reel of 3000)
Units
70 kHz 20µA 110µA - 2 mA - Surface Mount SOT-23 6 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 25 V
RS Stock No. 200-6779
Mfr. Part No.TL5001CP
kr 18,34
Each
Units
500 kHz - - - 2.1 mA - Through Hole PDIP 8 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
RS Stock No. 155-7734
Mfr. Part No.LTC3723EGN-1#PBF
kr 62,515
Each (In a Tube of 100)
Units
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 Stock No. 812-4353
Mfr. Part No.UCC28950PW
kr 68,39
Each
Units
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 Stock No. 121-7272
Mfr. Part No.ISL8117AFRZ-T7A
BrandIntersil
kr 19,31
Each
Units
2375 kHz - 2A 4A 4 mA Yes Surface Mount QFN 16 4 x 4 x 0.9mm 4mm 4mm 0.9mm 60 V
RS Stock No. 825-3533
Mfr. Part No.TL1451ACPWR
kr 7,224
Each (In a Pack of 5)
Units
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
RS Stock No. 165-2137
Mfr. Part No.MCP1630V-E/MS
BrandMicrochip
kr 8,732
Each (In a Tube of 100)
Units
1 MHz - -9mA 11mA 4.5 mA - Surface Mount MSOP 8 3 x 3 x 0.95mm 3mm 3mm 0.95mm 5.5 V
RS Stock No. 825-5488
Mfr. Part No.UCC28251RGPT
kr 40,825
Each (In a Pack of 2)
Units
1.8 MHz 275µA 8mA 9mA 275 μA Yes Surface Mount QFN 20 4.15 x 4.15 x 0.95mm 4.15mm 4.15mm 0.95mm 17 V
Related Products
PoE is a convenient and practical method and ...
Description:
PoE is a convenient and practical method and now present widely for delivering power supply on standard CAT5 Ethernet cables to various of loads.
The isolated-flyback power supply controller provides Constant-Voltage (CV) ...
Description:
The isolated-flyback power supply controller provides Constant-Voltage (CV) and Constant-Current (CC) output regulation to improve transient response to large load steps. Primary-Side Regulation (PSR) eliminates the need for an Optocoupler. Current-Mode and Voltage-Mode PWM Controller. Primary-Side Regulation. ...
Texas Instruments offers digitally enabled, configurable and fully ...
Description:
Texas Instruments offers digitally enabled, configurable and fully programmable power controllers, providing customers with flexibility, efficiency and integration to meet dynamic system needs.
The Microchip MCP19114 and MCP19115 are analogue-based Synchronous ...
Description:
The Microchip MCP19114 and MCP19115 are analogue-based Synchronous Low-Side PWM Controllers that integrate an 8-bit PIC Microcontroller. The addition of an MCU allows the operating parameters of the analogue circuitry to be easily customised using the Microchip MPLAB® X Integrated ...