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MC34262 Dataheets PDF



Part Number MC34262
Manufacturers Motorola
Logo Motorola
Description (MC33262 / MC34262) POWER FACTOR CONTROLLERS
Datasheet MC34262 DatasheetMC34262 Datasheet (PDF)

Order this document by MC34262/D Power Factor Controllers The MC34262/MC33262 are active power factor controllers specifically designed for use as a preconverter in electronic ballast and in off–line power converter applications. These integrated circuits feature an internal startup timer for stand–alone applications, a one quadrant multiplier for near unity power factor, zero current detector to ensure critical conduction operation, transconductance error amplifier, quickstart circuit for enha.

  MC34262   MC34262


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Order this document by MC34262/D Power Factor Controllers The MC34262/MC33262 are active power factor controllers specifically designed for use as a preconverter in electronic ballast and in off–line power converter applications. These integrated circuits feature an internal startup timer for stand–alone applications, a one quadrant multiplier for near unity power factor, zero current detector to ensure critical conduction operation, transconductance error amplifier, quickstart circuit for enhanced startup, trimmed internal bandgap reference, current sensing comparator, and a totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of an overvoltage comparator to eliminate runaway output voltage due to load removal, input undervoltage lockout with hysteresis, cycle–by–cycle current limiting, multiplier output clamp that limits maximum peak switch current, an RS latch for single pulse metering, and a drive output high state clamp for MOSFET gate protection. These devices are available in dual–in–line and surface mount plastic packages. • Overvoltage Comparator Eliminates Runaway Output Voltage MC34262 MC33262 POWER FACTOR CONTROLLERS SEMICONDUCTOR TECHNICAL DATA 8 1 P SUFFIX PLASTIC PACKAGE CASE 626 • • • • • • • • Internal Startup Timer One Quadrant Multiplier Zero Current Detector Trimmed 2% Internal Bandgap Reference Totem Pole Output with High State Clamp Undervoltage Lockout with 6.0 V of Hysteresis Low Startup and Operating Current Supersedes Functionality of SG3561 and TDA4817 8 1 D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) PIN CONNECTIONS Simplified Block Diagram Zero Current Detector 5 Zero Current Detect Input Voltage Feedback Input Compensation Multiplier Input Current Sense Input 1 2 3 4 (Top View) 8 VCC 7 Drive Output 6 Gnd 5 Zero Current Detect Input 2.5V Reference Undervoltage Lockout VCC 8 Drive Output Multiplier, Latch, PWM, Timer, & Logic 7 Current Sense Input Overvoltage Comparator + Error Amp 1.08 Vref 4 ORDERING INFORMATION Device Operating Temperature Range TA = 0° to +85°C TA = – 40° to +105°C Package SO–8 Plastic DIP SO–8 Plastic DIP Rev 1 Multiplier Input 3 + Multiplier Quickstart Gnd 6 Compensation 2 Vref Voltage Feedback 1 Input MC34262D MC34262P MC33262D MC33262P © Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA 1 MC34262 MC33262 MAXIMUM RATINGS Rating Total Power Supply and Zener Current Output Current, Source or Sink (Note 1) Current Sense, Multiplier, and Voltage Feedback Inputs Zero Current Detect Input High State Forward Current Low State Reverse Current Power Dissipation and Thermal Characteristics P Suffix, Plastic Package, Case 626 Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction–to–Air D Suffix, Plastic Package, Case 751 Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction–to–Air Operating Junction Temperature Operating Ambient Temperature (Note 3) MC34262 MC33262 Storage Temperature Symbol (ICC + IZ) IO Vin Iin 50 –10 Value 30 500 –1.0 to +10 Unit mA mA V mA PD RθJA PD RθJA TJ TA 800 100 450 178 +150 0 to + 85 – 40 to +105 mW °C/W mW °C/W °C °C Tstg – 65 to +150 °C ELECTRICAL CHARACTERISTICS (VCC = 12 V (Note 2), for typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies [Note 3], unless otherwise noted.) Characteristic ERROR AMPLIFIER Voltage Feedback Input Threshold TA = 25°C TA = Tlow to Thigh (VCC = 12 V to 28 V) Line Regulation (VCC = 12 V to 28 V, TA = 25°C) Input Bias Current (VFB = 0 V) Transconductance (TA = 25°C) Output Current Source (VFB = 2.3 V) Sink (VFB = 2.7 V) Output Voltage Swing High State (VFB = 2.3 V) Low State (VFB = 2.7 V) OVERVOLTAGE COMPARATOR Voltage Feedback Input Threshold MULTIPLIER Input Bias Current, Pin 3 (VFB = 0 V) Input Threshold, Pin 2 Dynamic Input Voltage Range Multiplier Input (Pin 3) Compensation (Pin 2) Multiplier Gain (VPin 3 = 0.5 V, VPin 2 = Vth(M) + 1.0 V) (Note 4) ZERO CURRENT DETECTOR Input Threshold Voltage (Vin Increasing) Hysteresis (Vin Decreasing) Input Clamp Voltage High State (IDET = + 3.0 mA) Low State (IDET = – 3.0 mA) Vth VH VIH VIL 1.33 100 6.1 0.3 1.6 200 6.7 0.7 1.87 300 — 1.0 V mV V IIB Vth(M) VPin 3 VPin 2 K — 1.05 VOL(EA) 0 to 2.5 Vth(M) to (Vth(M) + 1.0) 0.43 – 0.1 1.2 VOL(EA) 0 to 3.5 Vth(M) to (Vth(M) + 1.5) 0.65 – 0.5 — — — 0.87 1/V µA V V VFB(OV) 1.065 VFB 1.08 VFB 1.095 VFB V VFB 2.465 2.44 Regline IIB gm IO — — VOH(ea) VOL(ea) 5.8 — 10 10 6.4 1.7 — — V — 2.4 — — 80 2.5 — 1.0 – 0.1 100 2.535 2.54 10 – 0.5 130 mV µA µmho µA V Symbol Min Typ Max Unit 2 MOTOROLA ANALOG IC DEVICE DATA MC34262 MC33262 ELECTRICAL CHARACTERISTICS (VCC = 12 V (Note 2), for typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies (Note 3), unless otherwise noted.) Characteristic CURRENT SENSE COMPARATOR Input Bias Current (VPin 4 = 0 V) Input Offset Voltage (VPin 2 = 1.1 V, VPin 3 = 0 V) Maximum Current Sense Input .


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