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UCC28500DWTR

UCC28500DWTR
Mfr. #:
UCC28500DWTR
Description:
Power Factor Correction - PFC BICMOS PFC/PWM COMBINATION CONTROLLER
Lifecycle:
New from this manufacturer.
Datasheet:
UCC28500DWTR Datasheet
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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ECAD Model:
More Information:
UCC28500DWTR more Information UCC28500DWTR Product Details
Product Attribute
Attribute Value
Manufacturer:
Texas Instruments
Product Category:
Power Factor Correction - PFC
Switching Frequency:
115 kHz
Minimum Operating Temperature:
- 40 C
Maximum Operating Temperature:
+ 85 C
Mounting Style:
SMD/SMT
Package / Case:
SOIC-20
Height:
2.35 mm
Length:
12.8 mm
Type:
Power Factor Correction IC
Width:
7.52 mm
Brand:
Texas Instruments
Product Type:
PFC - Power Factor Correction
Subcategory:
PMIC - Power Management ICs
Unit Weight:
0.020071 oz
Tags
UCC28500D, UCC28500, UCC2850, UCC285, UCC28, UCC2, UCC
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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
BiCMOSPFCPWMCombinationController015mA115kHz20PinSOICTR
***asInstruments
PFCPWMCombinationcontrollerwith16V10VVCCUVLOand675V55VPWMUVLO40Cto85C20SOIC40to85
***ser
PowerFactorCorrectionPFCICsBiCMOSPFCPWMCombController
***iKey
ICPFCCTRLRAVERAGECURR20SOIC
***AS INSTR
The UCC2850x family provides all of the control functions necessary for an active power-factor-corrected preregulator and a second-stage dc-to-dc converter. The controller achieves near-unity power factor by shaping the ac input line current waveform to correspond to the ac input-line voltage using average current-mode control. The dc-to-dc converter uses peak current-mode control to perform the step-down power conversion.
***
The PFC stage is leading-edge modulated while the second stage is trailing-edge synchronized to allow for minimum overlap between the boost and PWM switches. This reduces ripple current in the bulk-output capacitor.In order to operate with over three-to-one range of input-line voltages, a line feedforward (VFF) is used to keep input power constant with varying input voltage. Generation of VFF is accomplished using IAC in conjunction with an external single-pole filter. This not only reduces external parts count, but also avoids the use of high-voltage components, offering a lower-cost solution. The multiplier then divides the line current by the square of VFF.
***AS INSTRUM
The UCC2850x PFC section incorporates a low offset-voltage amplifier with 7.5-V reference, a highly-linear multiplier capable of a wide current range, a high-bandwidth, low offset-current amplifier, with a novel noise-attenuation configuration, PWM comparator and latch, and a high-current output driver. Additional PFC features include over-voltage protection, zero-power detection to turn off the output when VAOUT is below 0.33 V and peak current and power limiting.
***as Instruments Inc.
The dc-to-dc section relies on an error signal generated on the secondary-side and processes it by performing peak current mode control. The dc-to-dc section also features current limiting, a controlled soft-start, preset operating range with selectable options, and 50% maximum duty cycle.
***
The UCC28500 and UCC28502 have a wide PFC-UVLO threshold (16.5 V/10 V) for bootstrap bias supply operation. The UCC28501 and UCC28503 are designed with a narrow UVLO range (10.5 V/10 V) more suitable for fixed bias operation. The UCC28500 and UCC28501 have a narrow UVLO threshold for PWM stage (to allow operation down to 75% of nominal bulk voltage), while the UCC28502 and UCC38503 are configured for a much wider operation range for the PWM stage (down to 50% of bulk nominal voltage).
***NS
Available in 20-pin N and DW packages.
Part # Description Stock Price
UCC28500DWTR
DISTI # UCC28500DWTR-ND		IC PFC CTRLR AVERAGE CURR 20SOIC
RoHS: Compliant
Min Qty: 2000
Container: Tape & Reel (TR)		Limited Supply - Call
    UCC28500DWTRG4
    DISTI # UCC28500DWTRG4-ND    		IC PFC CTRLR AVERAGE CURR 20SOIC
    RoHS: Compliant
    Min Qty: 2000
    Container: Tape & Reel (TR)    		Limited Supply - Call
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      Availability
      Stock:
      Available
      On Order:
      2500
      Enter Quantity:
      Current price of UCC28500DWTR 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
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