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TDA16850-2 Dataheets PDF



Part Number TDA16850-2
Manufacturers Infineon Technologies Corporation
Logo Infineon Technologies Corporation
Description Free running and synchronized SMPS Controller
Datasheet TDA16850-2 DatasheetTDA16850-2 Datasheet (PDF)

www.DataSheet.co.kr D a t a S h e et , A p r i l 2 0 0 1 TDA 16850-2 Free running and synchronized SMPS Controller Powe r M a na ge m e nt & S upply N e v e r s t o p t h i n k i n g . Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr TDA 16850-2 Synchronized SMPS Controller Product Highlights • • • • • • • • • Synchronisation range 30 kHz to 130 kHz Maximum output power independant of frequency Standby mode with reduced output voltage by factor 5 Mode changing and voltage .

  TDA16850-2   TDA16850-2


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www.DataSheet.co.kr D a t a S h e et , A p r i l 2 0 0 1 TDA 16850-2 Free running and synchronized SMPS Controller Powe r M a na ge m e nt & S upply N e v e r s t o p t h i n k i n g . Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr TDA 16850-2 Synchronized SMPS Controller Product Highlights • • • • • • • • • Synchronisation range 30 kHz to 130 kHz Maximum output power independant of frequency Standby mode with reduced output voltage by factor 5 Mode changing and voltage feedback through only one optocoupler Off mode with power consumption less than 250 mW Standby mode with power consumption less than 1W Without synchronisation operation with internal oscillator 20kHz/60kHz Different failure modes recognition with latch function Minimum external circuitry Typical application P-DIP-8 Converter DC O utput AC 90V - 270V VCC 7 SST 1 2 VREG VVCC VVREG 5 (*) GND Supply C SST Power Management Undervoltage Lockout 23 V 7,5 V Internal Bias Failure Modes Mains undervoltage Overvoltage Overtemperature Open loop failure Undervoltage Power down reset Power Up reset Voltage Reference S Delay 70 µs R Q DRIVER GATE 6 Over Current protection Short circuit protection US ST Power limitation PWM fClock Oscillator 20 kHz / 60 kHz & external synchronisation Current Mode CS 3 Standby Feedback Ropto 4 SYNC 8 OPTO Rsense Feedback (*) Supply by VREG if VCC < 11V Type TDA16850-2 Ordering Code Q67040-S4404-A Package P-DIP-8 Data Sheet 2 04.01 Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr TDA16850-2 Table of contents 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.2 Special Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.3 Protection Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.4 General Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.5 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 1.6 Pin Connection and Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 2Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.1 Off mode / Switch on process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.2 Startup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.3 Normal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.4 Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.5 Power down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.6 Protection Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7 Protection Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7.1 Over Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7.2 Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7.3 Failure Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7.3.1 Mains Undervoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7.3.2 IC Supply Overvoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7.3.3 IC Overtemperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7.3.4 VREG Loop Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.7.3.5 IC SupplyUndervoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 3Functional Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.1 VCC and VREG Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 3.2 OPTO Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 3.3 Oscillator and Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 3.4 PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 3.5 Current Sense Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 3.6 Soft Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 3.7 Output Power Limiting . . . . . . . . . . . . . . . . . . . . . .


LMX9402 TDA16850-2 AND185HOP


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