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UCC28502NG4

UCC28502NG4
Mfr. #:
UCC28502NG4
Descripción:
IC PFC CTRLR AVERAGE CURR 20DIP
Ciclo vital:
Nuevo de este fabricante.
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UCC28502NG4 Ficha de datos
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UCC28502NG4 más información UCC28502NG4 Product Details
Atributo del producto
Valor de atributo
Tags
UCC28502, 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
***ponent Stockers USA
1.2 A POWER FACTOR CONTROLLER WITH POST REGULATOR 120 kHz SWITCHING FREQ-MAX PDIP20
***ser
Power Factor Correction (PFC) ICs BiCMOS PFC/PWM Comb Controller
***i-Key
IC PFC CTRLR AVERAGE CURR 20DIP
***eco
BICMOS PFC/PWM COMBINATION CONTROLLER
***as Instruments
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. 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. 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). Available in 20-pin N and DW packages.
Parte # Descripción Valores Precio
UCC28502NG4
DISTI # UCC28502NG4-ND		IC PFC CTRLR AVERAGE CURR 20DIP
RoHS: Compliant
Min Qty: 100
Container: Tube		Limited Supply - Call
    Imagen Parte # Descripción
    UCC2892PWR

    Mfr.#: UCC2892PWR

    OMO.#: OMO-UCC2892PWR

    		 Switching Controllers UCC289x Current Mode Active Clamp
    UCC2813PWTR-5G4

    Mfr.#: UCC2813PWTR-5G4

    OMO.#: OMO-UCC2813PWTR-5G4

    		 Switching Controllers Low Power Economy BiCMOS Current Mode
    UCC2808D-2G4

    Mfr.#: UCC2808D-2G4

    OMO.#: OMO-UCC2808D-2G4-TEXAS-INSTRUMENTS

    		 IC REG CTRLR PUSH-PULL 8SOIC
    UCC28911EVM-718

    Mfr.#: UCC28911EVM-718

    OMO.#: OMO-UCC28911EVM-718-TEXAS-INSTRUMENTS

    		 UCC28911 AC to DC Switching Converters 4.75VDC to 5.25VDC Output Evaluation Board
    UCC2817ADRG4

    Mfr.#: UCC2817ADRG4

    OMO.#: OMO-UCC2817ADRG4-1190

    		 Power Factor Correction - PFC BiCMOS Power Factor Preregulato
    UCC2810DWTR/1

    Mfr.#: UCC2810DWTR/1

    OMO.#: OMO-UCC2810DWTR-1-1190

    		 Switching Controllers DUAL CHANNEL SYNCH CUR MODE PWM
    UCC2808APWTR-1

    Mfr.#: UCC2808APWTR-1

    OMO.#: OMO-UCC2808APWTR-1-TEXAS-INSTRUMENTS

    		 Switching Controllers Low-Pwr Current-Mode Push-Pull PWM
    UCC283TD-ADJ

    Mfr.#: UCC283TD-ADJ

    OMO.#: OMO-UCC283TD-ADJ-1190

    		 Voltage Regulator, Adjustable, +1.5 TO +8.5V, 5 Pin, Plastic, SIP
    UCC28950PW

    Mfr.#: UCC28950PW

    OMO.#: OMO-UCC28950PW-TEXAS-INSTRUMENTS

    		 Switching Controllers Green Phase-Shifted Full-Bridge Cntrl
    UCC283T-5

    Mfr.#: UCC283T-5

    OMO.#: OMO-UCC283T-5-TEXAS-INSTRUMENTS

    		 LDO Voltage Regulators Low Power 3 Ampere
    Disponibilidad
    Valores:
    Available
    En orden:
    3500
    Ingrese la cantidad:
    El precio actual de UCC28502NG4 es solo de referencia, si desea obtener el mejor precio, envíe una consulta o envíe un correo electrónico directo a nuestro equipo de ventas [email protected]
    Precio de referencia (USD)
    Cantidad
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    Ext. Precio
    1
    0,00 US$
    0,00 US$
    10
    0,00 US$
    0,00 US$
    100
    0,00 US$
    0,00 US$
    500
    0,00 US$
    0,00 US$
    1000
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    0,00 US$
    Debido a la escasez de semiconductores a partir de 2021, el precio inferior es el precio normal antes de 2021. Envíe una consulta para confirmar.
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