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Technical content

Features

  • Complete Pulse Width Modulation Control Circuitry
  • On−Chip Oscillator with Master or Slave Operation
  • On−Chip Error Amplifiers
  • On−Chip 5.0 V Reference, 1.5% Accuracy
  • Adjustable Dead−Time Control
  • Uncommitted Output Transistor Rated to 200 mA Source or Sink
  • Undervoltage Lockout
  • These are Pb−Free and Halide−Free Devices PIN CONNECTIONS (Top View) Error Amp Error Amp12 VCC 5.0 V ref 0.1V Oscillator Noninv Input Inv Input Compen/PWM Comp Input Dead-Time Control CT RT Ground Noninv Input Inv Input Vref N.C. VCC C E MARKING DIAGRAMS PDIP−14 P SUFFIX CASE 646 SOIC−14 D SUFFIX CASE 751A See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet.

ORDERING INFORMATION

x = 3 or 4 A = Assembly Location WL = Wafer Lot Y , YY = Year WW = Work Week G = Pb −Free Package http://onsemi.com MC3x060ADG AWLYWW MC3x060AP AWLYYWWG

MC34060A, MC33060A http://onsemi.com MAXIMUM RATINGS (Full operating ambient temperature range applies, unless otherwise noted.) Rating Symbol Value Unit Power Supply Voltage VCC 42 V Collector Output Voltage VC 42 V Collector Output Current (Note 3) IC 500 mA Amplifier Input Voltage Range Vin −0.3 to +42 V Power Dissipation @ TA ≤ 45°C PD 1000 mW Operating Junction Temperature TJ 125 °C Storage Temperature Range Tstg −55 to +125 °C Operating Ambient Temperature Range For MC34060A For MC33060A TA 0 to +70 −40 to +85 ESD Capability Machine Model Human Body Model 200 2.0 V kV Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above t he Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. This device series contains ESD protection and exceeds the following tests: Pins 1– 14: Human Body Model 2000 V per JEDEC Standard JESD22 −A114E. Pins 1– 8: Machine Model Method 200 V per JEDEC Standard JESD22−A115−A. 2. This device contains Latch −Up protection and exceeds ± 100 mA per JEDEC Standard JESD78. THERMAL CHARACTERISTICS Characteristics Symbol P Suffix Package D Suffix Package Unit Thermal Resistance, Junction−to−Ambient R/C0113JA 80 120 °C/W Derating Ambient Temperature TA 45 45 °C RECOMMENDED OPERATING CONDITIONS Condition/Value Symbol Min Typ Max Unit Power Supply Voltage VCC 7.0 15 40 V Collector Output Voltage VC − 30 40 V Collector Output Current IC − − 200 mA Amplifier Input Voltage Vin −0.3 − VCC −2 V Current Into Feedback Terminal Ifb − − 0.3 mA Reference Output Current Iref − − 10 mA Timing Resistor RT 1.8 47 500 k/C0087 Timing Capacitor CT 0.00047 0.001 10 /C0109F Oscillator Frequency fosc 1.0 25 200 kHz PWM Input Voltage (Pins 3 and 4) − −0.3 − 5.3 V 3. Maximum thermal limits must be observed.

MC34060A, MC33060A http://onsemi.com ELECTRICAL CHARACTERISTICS (VCC = 15 V, CT = 0.01 /C0109F, RT = 12 k/C0087, unless otherwise noted. For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted.) Characteristics Symbol Min Typ Max Unit REFERENCE SECTION Reference Voltage (IO = 1.0 mA, TA 25°C) TA = Tlow to Thigh − MC34060A TA = Tlow to Thigh − MC33060A Vref 4.925 4.9 4.85 5.0 5.075 5.1 5.1 V Line Regulation (VCC = 7.0 V to 40 V, IO = 10 mA) Regline − 2.0 25 mV Load Regulation (IO = 1.0 mA to 10 mA) Regload − 2.0 15 mV Short Circuit Output Current (Vref = 0 V) ISC 15 35 75 mA OUTPUT SECTION Collector Off−State Current (VCC = 40 V, VCE = 40 V) IC(off) − 2.0 100 /C0109A Emitter Off−State Current (VCC = 40 V, VCE = 40 V, VE = 0 V) IE(off) − − −100 /C0109A Collector−Emitter Saturation Voltage (Note 4) Common−Emitter (VE = 0 V, IC = 200 mA) Emitter−Follower (VC = 15 V, IE = −200 mA) Vsat(C) Vsat(E) 1.1 1.5 1.5 2.5 V Output Voltage Rise Time (TA = 25°C) Common−Emitter (See Figure 12) Emitter−Follower (See Figure 13) tr 100 100 200 200 ns Output Voltage Fall Time (TA = 25°C) Common−Emitter (See Figure 12) Emitter−Follower (See Figure 13) tr 100 100 ns ERROR AMPLIFIER SECTION Input Offset Voltage (VO[Pin 3] = 2.5 V) VIO − 2.0 10 mV Input Offset Current (VC[Pin 3] = 2.5 V) IIO − 5.0 250 nA Input Bias Current (VO[Pin 3] = 2.5 V) IIB − −0.1 −2.0 /C0109A Input Common Mode Voltage Range (VCC = 40 V) VICR 0 to VCC −2.0 − − V Inverting Input Voltage Range VIR(INV) −0.3 to VCC−2.0 − − V Open−Loop Voltage Gain (/C0068VO = 3.0 V, VO = 0.5 V to 3.5 V, RL = 2.0 k/C0087) AVOL 70 95 − dB Unity−Gain Crossover Frequency (VO = 0.5 V to 3.5 V, RL = 2.0 k/C0087) fc − 600 − kHz Phase Margin at Unity−Gain (VO = 0.5 V to 3.5 V, RL = 2.0 k/C0087) φm − 65 − deg. Common Mode Rejection Ratio (VCC = 40 V, Vin = 0 V to 38 V)) CMRR 65 90 − dB Power Supply Rejection Ratio (/C0068VCC = 33 V, VO = 2.5 V, RL = 2.0 k/C0087) PSRR − 100 − dB Output Sink Current (VO[Pin 3] = 0.7 V) IO− 0.3 0.7 − mA Output Source Current (VO[Pin 3] = 3.5 V) IO+ −2.0 −4.0 − mA 4. Low duty cycle techniques are used during test to maintain junction temperature as close to ambient temperatures as possible. Tlow = −40°C for MC33060A T high = +85 °C for MC33060A = 0 °C for MC34060A = +70 °C for MC34060A

MC34060A, MC33060A http://onsemi.com ELECTRICAL CHARACTERISTICS (continued) (VCC = 15 V, CT = 0.01 /C0109F, RT = 12 k/C0087, unless otherwise noted. For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted.) Characteristics Symbol Min Typ Max Unit PWM COMPARATOR SECTION (Test circuit Figure 11) Input Threshold Voltage (Zero Duty Cycle) VTH − 3.5 4.5 V Input Sink Current (V[Pin 3] = 0.7 V) II 0.3 0.7 − mA DEAD−TIME CONTROL SECTION (Test circuit Figure 11) Input Bias Current (Pin 4) (Vin = 0 V to 5.25 V) IIB(DT) − −1.0 −10 /C0109A Maximum Output Duty Cycle (Vin = 0 V, CT = 0.01 /C0109F, RT = 12 k/C0087) (Vin = 0 V, CT = 0.001 /C0109F, RT = 47 k/C0087) DCmax 100 Input Threshold Voltage (Pin 4) (Zero Duty Cycle) (Maximum Duty Cycle) VTH 2.8 3.3 V OSCILLATOR SECTION Frequency (CT = 0.01 /C0109F, RT = 12 k/C0087, TA = 25°C) TA = Tlow to Thigh − MC34060A TA = Tlow to Thigh − MC33060A (CT = 0.001 /C0109F, RT = 47 k/C0087) fosc 9.7 9.5 9.0 10.5 11.3 11.5 11.5 kHz Standard Deviation of Frequency* (CT = 0.001 /C0109F, RT = 47 k/C0087) σfosc − 1.5 − % Frequency Change with Voltage (VCC = 7.0 V to 40 V) Frequency Change with Temperature (/C0068TA =Tlow to Thigh) (CT = 0.01 /C0109F, RT = 12 k/C0087) /C0068fosc(/C0068T) 4.0 UNDERVOLTAGE LOCKOUT SECTION Turn−On Threshold (VCC increasing, Iref = 1.0 mA) Vth 4.0 4.7 5.5 V Hysteresis VH 50 150 300 mV TOTAL DEVICE Standby Supply Current (Pin 6 at Vref, all other inputs and outputs open) (VCC = 15 V) (VCC = 40 V) ICC 5.5 7.0 mA Average Supply Current (V[Pin 4] = 2.0 V, CT = 0.001 /C0109F, RT = 47 k/C0087). See Figure 11. IS − 7.0 − mA *Standard deviation is a measure of the statistical distribution about the mean as derived from the formula; σ = N Σ (xn −x)2 n − 1 N−1

MC34060A, MC33060A http://onsemi.com Figure 1. Block Diagram

7 GND

This device contains 46 active transistors.

Description

The MC34060A is a fixed −frequency pulse width modulation control circuit, incorporating the primary building blocks required for the control of a switching power supply (see Figure 1). An internal−linear sawtooth oscillator is frequency−programmable by two external components, RT and C T. The approximate oscillator frequency is determined by: fosc /C00941.2 RT • CT For more information refer to Figure 3. Output pulse width modulation is accomplished by comparison of the positive sawtooth waveform across capacitor C T to either of two control signals. The output is enabled only during that portion of time when the sawtooth voltage is greater than the control signals. Therefore, an increase in control−signal amplitude causes a corresponding linear decrease of output pulse width. (Refer to the Timing Diagram shown in Figure 2.) Figure 2. Timing Diagram

Figure 19. Step−Down Converter with Soft−Start

Figure 20. Step−Up Converter

Output Ripple Vin = 12 V, IO = 250 mA 10 mV p−p P .A.R.D. Figure 21. Step−Up/Down Voltage Inverting Converter

Figure 22. 33 W Off−Line Flyback Converter with Soft−Start and Primary Power Limiting

0.0047 UL/CSA

115 Vac

MC34060A, MC33060A http://onsemi.com Temperature Range Package Shipping† MC34060ADG TA= 0° to +70°C SOIC−14 (Pb−Free) 55 Units / Rail MC34060ADR2G SOIC−14 (Pb−Free) 2500 / Tape & Reel MC34060APG PDIP−14 (Pb−Free) 25 Units / Rail MC33060ADG TA= −40° to +85°C SOIC−14 (Pb−Free) 55 Units / Rail MC33060ADR2G SOIC−14 (Pb−Free) 2500 / Tape & Reel MC33060APG PDIP−14 (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.

MC34060A, MC33060A http://onsemi.com PACKAGE DIMENSIONS SOIC−14 CASE 751A−03 ISSUE H NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. −A− −B− G P 7 PL 14 8 M0.25 (0.010) B M SBM0.25 (0.010) A ST −T− FR X 45 SEATING PLANE D 14 PL K C JM /C0095 DIM MIN MAX MIN MAX INCHESMILLIMETERS A 8.55 8.75 0.337 0.344 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.40 1.25 0.016 0.049 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 M 0 7 0 7 P 5.80 6.20 0.228 0.244 R 0.25 0.50 0.010 0.019 /C0095/C0095/C0095/C0095 7.04 14X 0.58 14X 1.52 1.27 DIMENSIONS: MILLIMETERS PITCH SOLDERING FOOTPRINT* *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.

MC34060A, MC33060A http://onsemi.com PACKAGE DIMENSIONS PDIP−14 CASE 646−06 ISSUE P 14 8 B A DIM MIN MAX MIN MAX MILLIMETERSINCHES A 0.715 0.770 18.16 19.56 B 0.240 0.260 6.10 6.60 C 0.145 0.185 3.69 4.69 D 0.015 0.021 0.38 0.53 F 0.040 0.070 1.02 1.78 G 0.100 BSC 2.54 BSC H 0.052 0.095 1.32 2.41 J 0.008 0.015 0.20 0.38 K 0.115 0.135 2.92 3.43 L N 0.015 0.039 0.38 1.01 /C0095/C0095 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. F HG D K C SEATING PLANE N −T− 14 PL M0.13 (0.005) L M J 0.290 0.310 7.37 7.87 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5773−3850 MC34060A/D SWITCHMODE is a trademark of Semiconductor Components Industries, LLC. LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your loca l Sales Representative