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Details, datasheet, quote on part number: NCP1055P100
 
 
Part numberNCP1055P100
CategoryPower Management => AC-DC Controllers/Converters => AC-DC Switching => Off-Line Regulators
TitleOff-Line Regulators
DescriptionFixed-100kHz Switching Regulator With 700V / 100mA Switch, 700V Maximum Startup And no Auxiliary Winding, Package: Pdip 7 (Minus Pin #6), Pins=7
CompanyON Semiconductor
DatasheetDownload NCP1055P100 datasheet
Request For QuoteFind where to buy NCP1055P100
 


 
Specifications, Features, Applications
NCP1054, NCP1055 Monolithic High Voltage Gated Oscillator Power Switching Regulator

The NCP1050 through NCP1055 are monolithic high voltage regulators that enable end product equipment to be compliant with low standby power requirements. This device series combines the required converter functions allowing a simple and economical power system solution for office automation, consumer, and industrial products. These devices are designed to operate directly from a rectified AC line source. In flyback converter applications they are capable of providing an output power that ranges from 40 W with a fixed AC input 230 V, and 20 W with a variable AC input that ranges from 265 V. This device series features an active startup regulator circuit that eliminates the need for an auxiliary bias winding on the converter transformer, fault detector and a programmable timer for converter overload protection, unique gated oscillator configuration for extremely fast loop response with double pulse suppression, power switch current limiting, input undervoltage lockout with hysteresis, thermal shutdown, and auto restart fault detection. These devices are available in economical 8-pin dual-in-line and 4-pin SOT-223 packages.

Features

8 DIP-8 CASE 626A P SUFFIX 1 Pin: VCC Control Input Ground No Connection Power Switch Drain NCP105XZ AWL YYWW

1 SOT-223 CASE 318E ST SUFFIX 1 Pin: VCC Control Input Power Switch Drain Ground

· Startup Circuit Eliminates the Need for Transformer Auxiliary Bias· Optional Auxiliary Bias Winding Override for Lowest Standby·

Power Applications Converter Output Overload and Open Loop Protection Auto Restart Fault Protection IC Thermal Fault Protection Unique, Dual Edge, Gated Oscillator Configuration for Extremely Fast Loop Response Oscillator Frequency Dithering with Controlled Slew Rate Driver for Reduced EMI Low Power Consumption Allowing European Blue Angel Compliance On-Chip 700 V Power Switch Circuit and Active Startup Circuit Rectified AC Line Source Operation from 265 V Input Undervoltage Lockout with Hysteresis Oscillator Frequency Options of 44 kHz, 100 kHz, 136 kHz AC-DC Converters Wall Adapters Portable Electronic Chargers Low Power Standby and Keep-Alive Supplies Winding

= Current Limit Oscillator Frequency (A, C) = Assembly Location = Wafer Lot = Year = Work Week
See detailed ordering and shipping information on page 22 of this data sheet.
Typical Applications
+ AC Line Input + Snubber + Converter DC Output - Power Switch Circuit Output VCC 1 5
Startup & VCC Regulator Circuit Power Switch Circuit
Fault Detector Control Input 2 Oscillator & Gating Logic

Pin (SOT-223) 1 Pin (DIP-8) 1 Function VCC Description This is the positive supply voltage input. During startup, power is supplied to this input from Pin 5. When VCC reaches VCC(on), the Startup Circuit turns off and the output is allowed to begin switching with 1.0 V hysteresis on the VCC pin. The capacitance connected to this pin programs fault timing and frequency modulation rate. The Power Switch Circuit is turned off when a current greater than approximately mA is drawn out of or applied to this pin. 10 V clamp is built onto the chip to protect the device from ESD damage or overvoltage conditions. This pin is the control circuit and Power Switch Circuit ground. It is part of the integrated circuit lead frame.

This pin is designed to directly drive the converter transformer primary, and internally connects to Power Switch and Startup Circuit.

Power Switch Circuit Output VCC V + VCC Bypass/ Fault Timing/ VCO Sweep Control Startup/VCC Reg 7.5/8.5 V Fault Detector S Undervoltage Lockout 4.5 V Oscillator 10 mA Turn On Latch 2.6 V Control Input R Q Turn Off Latch Ck Q Thermal Shutdown R Q Driver Fault Latch




Related products with the same datasheet
NCP1050P136   NCP1050P44   NCP1050ST100T3   NCP1050ST136T3   NCP1050ST44T3   NCP1051P100  
NCP1051P136   NCP1051P44   NCP1051ST100T3   NCP1051ST136T3   NCP1051ST44T3   NCP1052P100  


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