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UC3853D ic Integrated Circuit Chip High Power Factor Preregulator

UC3853D ic Integrated Circuit Chip High Power Factor Preregulator

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Brand Name :Anterwell
Model Number :UC3853D
Certification :new & original
Place of Origin :original factory
MOQ :20pcs
Price :Negotiate
Payment Terms :T/T, Western Union, Paypal
Supply Ability :10000pcs
Delivery Time :1 day
Packaging Details :Please contact me for details
Supply Voltage :40 V
Output Minimum Voltage :–0.3 V
IAC Maximum Input Current :1 mA
IMO Maximum Output Current :–2 mA
IMO Minimum Voltage :–0.3 V
FB Maximum Input Voltage :5 V
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View Product Description

UC1853 UC2853 UC3853

High Power Factor Preregulator

FEATURES

• Complete 8-pin Power Factor Solution

• Reduced External Components

• RMS Line Voltage Compensation

• Precision Multiplier/Squarer/Divider

• Internal 75kHz Synchronizable Oscillator

• Average Current Mode PWM Control

• Overvoltage Protection Comparator

• High Current, Clamped Gate Driver

DESCRIPTION

The UC3853 provides simple, yet high performance active power factor correction. Using the same control technique as the UC1854, this 8-pin device exploits a simplified architecture and an internal oscillator to minimize external component count. The UC3853 incorporates a precision multiplier/squarer/divider circuit, voltage and current loop error amplifiers, and a precision voltage reference to implement average current mode control with RMS line voltage compensation. This control technique maintains constant loop gain with changes in input voltage, which minimizes input line current distortion over the worldwide input voltage range.

The internal 75kHz oscillator includes an external clock input, allowing synchronization to downstream converters. Additionally, the device features an overvoltage protection comparator, a clamped MOSFET gate driver which self-biases low during undervoltage lockout, and low startup and supply current.

These devices are available in 8-pin plastic and ceramic dual in-line (DIP) packages, and 8-lead small outline (SOIC) packages. The UC1853 is specified for operation from –55°C to +125°C, the UC2853 is specified for operation from –25°C to +85°C, and the UC3853 is specified for operation from 0°C to +70°C.

BLOCK DIAGRAM

UC3853D ic Integrated Circuit Chip High Power Factor Preregulator

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V

Output Drive Current,

Continuous .............................................................. 0.125A

Peak ............................................................................ 0.5A

Output Minimum Voltage ................................................. –0.3V

IAC Maximum Input Current . . . . . . . . . . . . . . . . . . . . . . . . 1mA

IMO Maximum Output Current .......................................... –2mA

IMO Minimum Voltage ....................................................... –0.3V

FB Maximum Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 5V

VCOMP Maximum Voltage.................................................. 6.2V

ICOMP Sourcing Current ........................................ Self-Limiting

ICOMP Sinking Current .................................................... 20mA

ICOMP Maximum Voltage .................................................... 7.2V

Storage Temperature ....................................... –65°C to +150°C

Junction Temperature........................................ –55°C to +150°C

Lead Temperature (Soldering, 10 sec.) ........................... +300°C


All voltages with respect to GND. Currents are positive into, negative out of the specified terminal. Consult Packaging Section of Databook for thermal limitations and considerations of packages.

CONNECTION DIAGRAM

UC3853D ic Integrated Circuit Chip High Power Factor Preregulator

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China UC3853D ic Integrated Circuit Chip High Power Factor Preregulator for sale

UC3853D ic Integrated Circuit Chip High Power Factor Preregulator

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