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UC3849Q

UC3849Q
Mfr. #:
UC3849Q
Description:
IC SECONDARY SIDE CTRLR 28PLCC
Lifecycle:
New from this manufacturer.
Datasheet:
UC3849Q Datasheet
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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ECAD Model:
More Information:
UC3849Q more Information UC3849Q Product Details
Product Attribute
Attribute Value
Manufacturer
Texas Instruments
Product Category
PMIC - Power Supply Controllers, Monitors
Series
-
Packaging
Tube
Package-Case
28-LCC (J-Lead)
Operating-Temperature
-40°C ~ 85°C
Mounting-Type
Surface Mount
Applications
Secondary-Side Controller
Voltage-Supply
-
Supplier-Device-Package
28-PLCC (11.51x11.51)
Voltage-Input
8 V ~ 20 V
Current-Supply
21mA
Tags
UC3849, UC384, UC38, UC3
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Quality Guarantees

We provide 90-360 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.
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Email: info@omo-ic.com

Step1: Vacuum Packaging with PL
Step1:
Vacuum Packaging with PL
Step2: Anti-Static Bag
Step2:
Anti-Static Bag
Step3: Packaging Boxes
Step3:
Packaging Boxes
***et
Current Mode PWM Controller Average Secondary Side 1MHz 20V 0.3A 28-Pin PLCC
***ark
Pulse Width Modulation (PWM) Controller IC; Frequency:1000kHz; No. of Pins:28; Operating Temperature Range:0°C to +70°C; Leaded Process Compatible:No; Number of PWM Outputs:1; Output Current:250mA; Package/Case:28-PLCC ;RoHS Compliant: No
***as Instruments
The UC3849 family of average current-mode controllers accurately accomplishes secondary side average current mode control. The secondary-side output voltage is regulated by sensing the output voltage and differentially sensing the ac switching current. The sensed output voltage drives a voltage error amplifier. The ac switching current, monitored by a current sense resistor, drives a high bandwidth, low offset current sense amplifier. The outputs of the voltage error amplifier and current sense amplifier differentially drive a high bandwidth, integrating current error amplifier. The sawtooth waveform at the current error amplifier output is the amplified and inverted inductor current sensed through the resistor. This inductor current down-slope compared to the PWM ramp achieves slope compensation, which gives an accurate and inherent fast transient response to changes in load.The UC3849 features load share, oscillator synchronization, undervoltage lockout, and programmable output control. Multiple chip operation can be achieved by connecting up to ten UC3849 chips in parallel. The SHARE bus and CLKSYN bus provide load sharing and synchronization to the fastest oscillator respectively. The UC3849 is an ideal controller to achieve high power, secondary side average current mode control.
Part # Description Stock Price
UC3849Q
DISTI # UC3849Q-ND		IC SECONDARY SIDE CTRLR 28PLCC
RoHS: Compliant
Min Qty: 74
Container: Tube		Limited Supply - Call
    UC3849QTR
    DISTI # UC3849QTR-ND    		IC SECONDARY SIDE CTRLR 28PLCC
    RoHS: Compliant
    Min Qty: 750
    Container: Tape & Reel (TR)    		Limited Supply - Call
      UC3849Q
      DISTI # 595-UC3849Q      		Switching Controllers Sec Side Avg Current Mode
      RoHS: Not compliant      		0
        UC3849QTR
        DISTI # 595-UC3849QTR        		Switching Controllers Sec Side Avg Current Mode
        RoHS: Not compliant        		0
          UC3849QSwitching Controller, Current-mode, 0.3A, 1000kHz Switching Freq-Max, BIPolar, PQCC28
          RoHS: Compliant          		1924
          • 1000:$4.0100
          • 500:$4.2200
          • 100:$4.4000
          • 25:$4.5900
          • 1:$4.9400
          UC3849QTRSwitching Controller, Current-mode, 0.3A, 1000kHz Switching Freq-Max, BIPolar, PQCC28
          RoHS: Compliant          		1500
          • 1000:$4.0100
          • 500:$4.2200
          • 100:$4.4000
          • 25:$4.5900
          • 1:$4.9400
          UC3849Q*** FREE SHIPPING ORDERS OVER $100 *** Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 28 Pin, Plastic, PLCC642
          • 544:$3.3770
          • 126:$3.6840
          • 1:$9.2100
          UC3849QTR*** FREE SHIPPING ORDERS OVER $100 *** Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 28 Pin, Plastic, PLCC12181
          • 1559:$1.8375
          • 953:$1.9250
          • 1:$5.2500
          UC3849QTR*** FREE SHIPPING ORDERS OVER $100 *** Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 28 Pin, Plastic, PLCC750
          • 221:$2.1000
          • 77:$2.2750
          • 1:$5.2500
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          Availability
          Stock:
          Available
          On Order:
          2000
          Enter Quantity:
          Current price of UC3849Q is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@omo-ic.com
          Reference price (USD)
          Quantity
          Unit Price
          Ext. Price
          1
          $5.07
          $5.07
          10
          $4.81
          $48.12
          100
          $4.56
          $455.90
          500
          $4.31
          $2 152.85
          1000
          $4.05
          $4 052.40
          Due to semiconductor in short supply from 2021,below price is the Normal price before 2021.please send inquire to confirm.
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