Fairchild Semiconductor DNP011

The highly integrated DNP011 consists of current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET....


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Rochester Electronics
DNP011 26,279 Buy Now »
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Abacus Technologies
DNP011 32,414 ยทยท

Descriptions

The highly integrated DNP011 consists of current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET. It is specifically designed for high-performance off line Switch Mode Power Supplies (SMPS) with minimal external components.The integrated PWM controller features include a proprietary green-mode function that provides off-time modulation to linearly decrease the switching frequency at light-load conditions to minimize standby power consumption. To avoid acoustic-noise problems, the minimum PWM frequency is set above 18KHz. This green-mode function enables the power supply to meet international power conservation requirements. With the internal high-voltage startup circuit, power loss due to bleeding resistors is also eliminated. To further reduce power consumption, the PWM controller is manufactured using the BiCMOS process, which allows an operating current of only 3.5mA.The built-in synchronized slope compensation achieves stable peak-current-mode control. The proprietary external line compensation ensures constant output power limit over a wide AC input voltage range, from 90VAC to 264VAC.The DNP011 provides many protection functions. In addition to cycle-by-cycle current limiting, the internal open-loop protection circuit ensures safety when an open-loop or output short-circuit failure occurs. PWM output is disabled until VDD drops below the UVLO lower limit, when the controller starts up again. As long as VDD exceeds ~28V, the internal OVP circuit is triggered.Compared to a discrete MOSFET and controller or RCC switching converter solution, DNP011 reduces component count, design size, and weight; while increasing efficiency, productivity, and reliability. These devices provide a basic platform that is well suited for the design of cost-effective flyback converters.
Fairchild Semiconductor

Technical Specifications

Lifecycle Status Pending Obsolescence

Documents

Fairchild Semiconductor
Technical Drawing 1 page 9 years ago
Compliance Statements
Reach Statement 2 pages 4 years ago
Rohs Statement 1 page 3 years ago
Rohs Statement 1 page 4 years ago

Alternate Names

FAIRCHILD DNP011
FSC DNP011
FAIR DNP011
QTC DNP011
FAI DNP011
FAIRCHIL DNP011
FAIRCHILD SEMI DNP011
FCS DNP011
QT OPTO DNP011
FAIRCH DNP011
SPT DNP011
FAIRCHILD SEMICONDUCTOR CORP DNP011
FAIRCHI DNP011
FAIRC DNP011
FARICHILD DNP011
FAIRCHLD DNP011
FCH DNP011
FARA DNP011
FDS DNP011
FAIRCHILD SEMICONDUC DNP011
NSC/FSC DNP011
SIGNAL PROCESSING TECHNOLOGIES DNP011
FAIRCHILD SEMIC DNP011
OTHER DNP011
FAIRCHICD DNP011

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