HomedatasheetTL3842BDR

TL3842BDR Datasheet

Current Mode PWM Controllers
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Description

The TL284xB and TL3842BDR series of control integrated circuits provide the features that are necessary to implement off-line or dc-to-dc fixed-frequency current-mode control schemes, with a minimum number of external components. Internally implemented circuits include an undervoltage lockout (UVLO) and a precision reference that is trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state. TL3842BDR Features &bull; Low Start-Up Current (<0.5 mA)&bull; Trimmed Oscillator Discharge Current&bull; Current Mode Operation to 500 kHz&bull; Automatic Feed-Forward Compensation&bull; Latching PWM for Cycle-by-Cycle Current Limiting&bull; Internally Trimmed Reference With Undervoltage Lockout&bull; High-Current Totem-Pole Output Undervoltage Lockout With Hysteresis&bull; Double-Pulse Suppression
Features

Parameters

[{"Name":"Switching Frequency ","Value":"500 kHz "},{"Name":"Rise Time ","Value":"50 ns"},{"Name":"Fall Time","Value":"50 ns"},{"Name":"Number of Outputs ","Value":"1"},{"Name":"Maximum Operating Temperature ","Value":"+ 70 C "},{"Name":"Mounting Style ","Value":"SMD/SMT "},{"Name":"Package / Case","Value":"SOIC-14"}]

Manufacturer information

FAIRCHILD SEMICONDUCTOR

Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear – anticipate the power efficiencies demanded by tomorrow’s electronic products and deliver an amazing design experience

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