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UC2861NG4

UC2861NG4
Mfr. #:
UC2861NG4
Descrizione:
IC REG CTRLR PWM VM 16DIP
Ciclo vitale:
Nuovo da questo produttore.
Scheda dati:
UC2861NG4 Scheda dati
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UC2861NG4 maggiori informazioni UC2861NG4 Product Details
Attributo del prodotto
Valore attributo
Tags
UC2861, UC286, UC28, UC2
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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
***i-Key
IC REG CTRLR PWM VM 16DIP
***ark
Pulse Width Modulation (PWM) Controller IC; Frequency:450kHz; Power Dissipation, Pd:1W; No. of Pins:16; Operating Temperature Range:-40°C to +85°C; Control Mode:Voltage; Leaded Process Compatible:Yes; Number of PWM Outputs:2 ;RoHS Compliant: Yes
***as Instruments
The UC1861-1868 family of ICs is optimized for the control of Zero Current Switched and Zero Voltage Switched quasi-resonant converters. Differences between members of this device family result from the various combinations of UVLO thresholds and output options. Additionally, the one-shot pulse steering logic is configured to program either on-time for ZCS systems (UC1865-1868), or off-time for ZVS applications (UC1861-1864). The primary control blocks implemented include an error amplifier to compensate the overall system loop and to drive a voltage controlled oscillator (VCO), featuring programmable minimum and maximum frequencies. Triggered by the VCO, the one-shot generates pulses of a programmed maximum width, which can be modulated by the Zero Detection comparator. This circuit facilitates "true" zero current or voltage switching over various line, load, and temperature changes, and is also able to accommodate the resonant components' initial tolerances. Under-Voltage Lockout is incorporated to facilitate safe starts upon power-up. The supply current during the under-voltage lockout period is typically less than 150A, and the outputs are actively forced to the low state. UVLO thresholds for the UC1861/62/65/66 are 16.5V (ON) and 10.5V (OFF), whereas the UC1863/64/67/68 thresholds are 8V (ON) and 7V (OFF). After VCC exceeds the UVLO threshold, a 5V generator is enabled which provides bias for the internal circuits and up to 10mA for external usage. A Fault comparator serves to detect fault conditions and set a latch while forcing the output drivers low. The Soft-Ref pin serves three functions: providing soft start, restart delay, and the internal system reference. Each device features dual 1 Amp peak totem pole output drivers for direct interface to power MOSFETS. The outputs are programmed to alternate in the UC1861/63/65/67 devices. The UC1862/64/66/68 outputs operate in unison alllowing a 2 Amp peak current.
Parte # Descrizione Azione Prezzo
UC2861NG4
DISTI # UC2861NG4-ND		IC REG CTRLR PWM VM 16DIP
RoHS: Compliant
Min Qty: 100
Container: Tube		Limited Supply - Call
    Immagine Parte # Descrizione
    UC2844D8G4

    Mfr.#: UC2844D8G4

    OMO.#: OMO-UC2844D8G4

    		 Switching Controllers Current Mode
    UC2844BDR2

    Mfr.#: UC2844BDR2

    OMO.#: OMO-UC2844BDR2

    		 Switching Controllers 52kHz 1A Current PWM
    UC2842AD

    Mfr.#: UC2842AD

    OMO.#: OMO-UC2842AD

    		 Switching Controllers Current Mode PWMs
    UC2843BD1R2G-CUT TAPE

    Mfr.#: UC2843BD1R2G-CUT TAPE

    OMO.#: OMO-UC2843BD1R2G-CUT-TAPE-1190

    		 Nuovo e originale
    UC2832ADW+

    Mfr.#: UC2832ADW+

    OMO.#: OMO-UC2832ADW--1190

    		 Nuovo e originale
    UC2843AD1R2

    Mfr.#: UC2843AD1R2

    OMO.#: OMO-UC2843AD1R2-1190

    		 Switching Controllers 52kHz 1A Current PWM
    UC2825DW/80903

    Mfr.#: UC2825DW/80903

    OMO.#: OMO-UC2825DW-80903-1190

    		 Switching Controller, Voltage-mode, 2A, 1000kHz Switching Freq-Max, BICMOS, PDSO16
    UC2845BD1O13TR

    Mfr.#: UC2845BD1O13TR

    OMO.#: OMO-UC2845BD1O13TR-1190

    		 INSTOCK
    UC2844AN

    Mfr.#: UC2844AN

    OMO.#: OMO-UC2844AN-TEXAS-INSTRUMENTS

    		 Switching Controllers Current Mode
    UC2853D

    Mfr.#: UC2853D

    OMO.#: OMO-UC2853D-TEXAS-INSTRUMENTS

    		 IC PFC CTRLR AVERAGE CURR 8SOIC
    Disponibilità
    Azione:
    Available
    Su ordine:
    4000
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