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MC33067P 数据表(PDF) 1 Page - ON Semiconductor |
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MC33067P 数据表(HTML) 1 Page - ON Semiconductor |
1 / 16 page © Semiconductor Components Industries, LLC, 2005 October, 2005 − Rev. 11 1 Publication Order Number: MC34067/D MC34067, MC33067 High Performance Resonant Mode Controllers The MC34067/MC33067 are high performance zero voltage switch resonant mode controllers designed for off−line and dc−to−dc converter applications that utilize frequency modulated constant off−time or constant deadtime control. These integrated circuits feature a variable frequency oscillator, a precise retriggerable one−shot timer, temperature compensated reference, high gain wide bandwidth error amplifier, steering flip−flop, and dual high current totem pole outputs ideally suited for driving power MOSFETs. Also included are protective features consisting of a high speed fault comparator and latch, programmable soft−start circuitry, input undervoltage lockout with selectable thresholds, and reference undervoltage lockout. These devices are available in dual−in−line and surface mount packages. Features • Zero Voltage Switch Resonant Mode Operation • Variable Frequency Oscillator with a Control Range Exceeding 1000:1 • Precision One−Shot Timer for Controlled Off−Time • Internally Trimmed Bandgap Reference • 4.0 MHz Error Amplifier • Dual High Current Totem Pole Outputs • Selectable Undervoltage Lockout Thresholds with Hysteresis • Enable Input • Programmable Soft−Start Circuitry • Low Startup Current for Off−Line Operation • Pb−Free Packages are Available* Figure 1. Simplified Block Diagram Noninverting Input 11 8 6 16 3 2 1 OSC Charge Enable / UVLO Adjust VCC 15 5 14 12 13 Vref UVLO Error Amp VCC UVLO / Enable Fault Detector/ Latch 2.5 V Clamp Soft−Start One−Shot Output B Inverting Input Soft−Start 7 Error Amp Output One−Shot Oscillator Control Current OSC RC 9 Ground 4 Fault Input 10 Pwr GND Output A Vref Variable Frequency Oscillator Steering Flip−Flop 5.0 V Reference *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. MARKING DIAGRAMS x = 3 or 4 A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package PDIP−16 P SUFFIX CASE 648 1 16 SOIC−16W DW SUFFIX CASE 751G 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PIN CONNECTIONS (Top View) Vref OSC Charge OSC RC OSC Control Current GND Error Amp Out Inverting Input Noninverting Input One−Shot RC VCC Drive Output B CSoft−Start Enable/UVLO Adjust Drive Output A Power GND Fault Input http://onsemi.com 16 1 MC3x067DW AWLYYWWG See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. ORDERING INFORMATION 16 1 MC3x067P AWLYYWWG 16 1 |
类似零件编号 - MC33067P |
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类似说明 - MC33067P |
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