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MC33023 Dataheets PDF



Part Number MC33023
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description High Speed Single-Ended PWM Controller
Datasheet MC33023 DatasheetMC33023 Datasheet (PDF)

MC34023, MC33023 High Speed Single-Ended PWM Controller The MC34023 series are high speed, fixed frequency, single−ended pulse width modulator controllers optimized for high frequency operation. They are specifically designed for Off−Line and DC−to−DC converter applications offering the designer a cost−effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high speed current .

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MC34023, MC33023 High Speed Single-Ended PWM Controller The MC34023 series are high speed, fixed frequency, single−ended pulse width modulator controllers optimized for high frequency operation. They are specifically designed for Off−Line and DC−to−DC converter applications offering the designer a cost−effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high speed current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, and a latch for single pulse metering. The flexibility of this series allows it to be easily configured for either current mode or voltage mode control. Features • 50 ns Propagation Delay to Output • High Current Totem Pole Output • Wide Bandwidth Error Amplifier • Fully−Latched Logic with Double Pulse Suppression • Latching PWM for Cycle−By−Cycle Current Limiting • Soft−Start Control with Latched Overcurrent Reset • Input Undervoltage Lockout with Hysteresis • Low Startup Current (500 mA Typ) • Internally Trimmed Reference with Undervoltage Lockout • 90% Maximum Duty Cycle (Externally Adjustable) • Precision Trimmed Oscillator • Voltage or Current Mode Operation to 1.0 MHz • Functionally Similar to the UC3823 • These are Pb−Free Devices http://onsemi.com 16 1 16 1 PDIP−16 P SUFFIX CASE 648 SOIC−16W DW SUFFIX CASE 751G MARKING DIAGRAMS 16 16 MC34023P AWLYYWWG 1 MC33023DW AWLYYWWG 1 A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package PIN CONNECTIONS 16 Vref 4 Clock 5 RT 6 CT 7 Ramp Error Amp 3 Output Noninverting Input 2 Inverting Input 1 8 Soft-Start Oscillator 5.1V Reference UVLO Latching Error PWM Amp Soft-Start 10 Ground This device contains 176 active transistors. Figure 1. Simplified Application 15 VCC 13 VC 14 Output 12 Power Ground 11 Current 9 Limit Ref Current Limit/ Shutdown Error Amp Inverting Input 1 Error Amp Noninverting Input 2 Error Amp Output 3 16 Vref 15 VCC 14 Output Clock 4 RT 5 CT 6 Ramp 7 Soft-Start 8 13 VC 12 Power Ground 11 Current Limit Reference 10 Ground 9 Current Limit/ Shutdown (Top View) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. © Semiconductor Components Industries, LLC, 2009 1 July, 2009 − Rev. 7 Publication Order Number: MC34023/D MC34023, MC33023 ORDERING INFORMATION Device MC33023DWG Package SOIC−16W (Pb−Free) Shipping† 47 Units / Rail MC33023DWR2G SOIC−16W (Pb−Free) 1000 Units / Reel MC34023PG PDIP−16 (Pb−Free) 25 Units / Rail †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. MAXIMUM RATINGS Rating Symbol Value Unit Power Supply Voltage Output Driver Supply Voltage Output Current, Source or Sink (Note 1) DC Pulsed (0.5 ms) VCC 30 V VC 20 V IO A 0.5 2.0 Current Sense, Soft−Start, Ramp, and Error Amp Inputs Error Amp Output and Soft−Start Sink Current Clock and RT Output Current Power Dissipation and Thermal Characteristics SO−16L Package (Case 751G) Maximum Power Dissipation @ TA = + 25°C Thermal Resistance, Junction−to−Air DIP Package (Case 648) Maximum Power Dissipation @ TA = + 25°C Thermal Resistance, Junction−to−Air Operating Junction Temperature Operating Ambient Temperature (Note 2) MC34023 MC33023 Vin IO ICO PD RqJA PD RqJA TJ TA −0.3 to +7.0 V 10 mA 5.0 mA 862 145 1.25 100 +150 0 to +70 −40 to +105 mW °C/W W °C/W °C °C Storage Temperature Range Tstg −55 to +150 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. http://onsemi.com 2 MC34023, MC33023 ELECTRICAL CHARACTERISTICS (VCC = 15 V, RT = 3.65 kW, CT = 1.0 nF, for typical values TA = + 25°C, for min/max values TA is the operating ambient temperature range that applies [Note 2], unless otherwise noted.) Characteristic Symbol Min Typ Max Unit REFERENCE SECTION Reference Output Voltage (IO = 1.0 mA, TJ = + 25°C) Line Regulation (VCC = 10 V to 30 V) Load Regulation (IO = 1.0 mA to 10 mA) Temperature Stability Total Output Variation over Line, Load, and Temperature Output Noise Voltage (f = 10 Hz to 10 kHz, TJ = + 25°C) Long T.


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