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 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庫存編號 162-9675
製造零件編號TL594CDR2G
HK$2.59
個 (在毎卷:2500)
單位
300 kHz 8mA -4mA 0.7mA 18 mA - Surface Mount SOIC 16 10 x 4 x 1.5mm 10mm 4mm 1.5mm 40 V
RS庫存編號 786-2552
製造零件編號TL594CDR2G
HK$5.96
/個 (每包:10個)
單位
300 kHz 8mA -4mA 0.7mA 18 mA - Surface Mount SOIC 16 10 x 4 x 1.5mm 10mm 4mm 1.5mm 40 V
RS庫存編號 517-2986
製造零件編號TL494IN
HK$4.92
/個 (每包:5個)
單位
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS庫存編號 920-3479
製造零件編號TL494IN
HK$4.307
毎管:25 個
單位
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS庫存編號 528-123
製造零件編號TL494CN
HK$3.821
毎管:25 個
單位
300 kHz - - - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 40 V
RS庫存編號 145-1163
製造零件編號UCC28600D
HK$9.074
毎管:75 個
單位
130 kHz - - - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 21 V
RS庫存編號 686-8433
製造零件編號L6598
HK$20.19
/個 (每包:2個)
單位
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庫存編號 862-9375
製造零件編號KA7552A
HK$6.40
/個 (每包:10個)
單位
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庫存編號 168-6083
製造零件編號L6598D
HK$17.20
毎管:50 個
單位
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庫存編號 652-5779
製造零件編號UCC2895DW
HK$51.29
單位
1 MHz 150µA - - - - Surface Mount SOIC 20 12.8 x 7.52 x 2.35mm 12.8mm 7.52mm 2.35mm 16.5 V
RS庫存編號 828-7441
製造零件編號AP3105NAKTR-G1
HK$2.308
/個 (每包:25個)
單位
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庫存編號 165-2137
製造零件編號MCP1630V-E/MS
BrandMicrochip
HK$8.443
毎管:100 個
單位
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庫存編號 181-348
製造零件編號LM5022MM/NOPB
HK$22.474
/個 (每包:5個)
單位
2 MHz - - - 4 mA - Surface Mount MSOP 10 3 x 3 x 0.86mm 3mm 3mm 0.86mm -
RS庫存編號 823-0016
製造零件編號LTC3723EGN-1#PBF
HK$93.81
單位
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庫存編號 786-2543
製造零件編號TL494CDR2G
HK$4.89
/個 (每包:10個)
單位
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庫存編號 175-1178
製造零件編號STCH03TR
HK$10.27
/個 (每包:10個)
單位
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
全新
RS庫存編號 202-5464
製造零件編號A6727TR
HK$21.186
/個 (每包:5個)
單位
300 kHz 0.5mA 1500mA 0.065mA 6 mA - - SO-8 8 - - - - -
RS庫存編號 796-9489
製造零件編號TS19375CS RLG
HK$12.669
/個 (每包:10個)
單位
500 kHz 8µA - - 20 μA - Surface Mount SOP 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 24 V
RS庫存編號 828-7444
製造零件編號AP3105NVKTR-G1
HK$4.697
/個 (每包:25個)
單位
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庫存編號 177-7275
製造零件編號LT1245CS8#PBF
HK$38.672
毎管:100 個
單位
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