HomedatasheetTL3842PE4

TL3842PE4 Datasheet

Current Mode PWM Controllers
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Description

The TL284x and TL3842PE4 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. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference 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. TL3842PE4 Features &bull; Optimized for Off-Line and dc-to-dc Converters&bull; Low Start-Up Current (<1 mA)&bull; Automatic Feed-Forward Compensation&bull; Pulse-by-Pulse Current Limiting&bull; Enhanced Load-Response Characteristics&bull; Undervoltage Lockout With Hysteresis&bull; Double-Pulse Suppression&bull; High-Current Totem-Pole Output&bull; Internally Trimmed Bandgap Reference&bull; 500-kHz Operation&bull; Error Amplifier With Low Output Resistance&bull; Designed to Be Interchangeable With UC2842 and UC3842 Series
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":"Through Hole"},{"Name":"Package / Case ","Value":"PDIP-8 "}]

Manufacturer information

SEIKO INSTRUMENTS

Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.


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