MC34060A, MC33060A Fixed Frequency, PWM, Voltage Mode Single Ended Controllers The MC34060A is a low cost fixed frequency, pulse width modulation control circuit designed primarily for single–ended SWITCHMODE power supply control. The MC34060A is specified over the commercial operating temperature range of 0° to +70°C, and the MC33060A is specified over an automotive temperature range of –40° to +85°C. • 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 http://onsemi.com MARKING DIAGRAMS 14 14 1 SO–14 D SUFFIX CASE 751A MC3x060AD AWLYWW 1 14 PDIP–14 P SUFFIX CASE 646 14 MC3x060AP AWLYYWW 1 1 x = 3 or 4 A = Assembly Location WL = Wafer Lot YY, Y = Year WW = Work Week PIN CONNECTIONS ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet. Noninv Input 1 Inv Input 2 Compen/PWM Comp Input 3 Dead-Time Control 4 11 N.C. CT 5 10 VCC RT 6 Ground 7 + Error Amp 1 - Error 2 Amp VCC + Noninv 14 Input - Inv 13 Input 5.0 V ref 0.1V 12 Vref Oscillator 9 C 8 E Q1 (Top View) Semiconductor Components Industries, LLC, 2002 January, 2002 – Rev. 3 1 Publication Order Number: MC34060A/D MC34060A, MC33060A 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 1) 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 °C 0 to +70 –40 to +85 THERMAL CHARACTERISTICS Characteristics Symbol P Suffix Package D Suffix Package Unit RθJA 80 120 °C/W TA 45 45 °C Thermal Resistance, Junction–to–Ambient Derating Ambient Temperature RECOMMENDED OPERATING CONDITIONS Symbol Min Typ Max Unit Power Supply Voltage Condition/Value 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 kΩ Timing Capacitor CT 0.00047 0.001 10 µF Oscillator Frequency fosc 1.0 25 200 kHz – –0.3 – 5.3 V PWM Input Voltage (Pins 3 and 4) 1. Maximum thermal limits must be observed. http://onsemi.com 2 MC34060A, MC33060A ELECTRICAL CHARACTERISTICS (VCC = 15 V, CT = 0.01 µF, RT = 12 kΩ, 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 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 IC(off) – 2.0 100 µA Emitter Off–State Current (VCC = 40 V, VCE = 40 V, VE = 0 V) IE(off) – – –100 µA Collector–Emitter Saturation Voltage (Note 2) Common–Emitter (VE = 0 V, IC = 200 mA) Emitter–Follower (VC = 15 V, IE = –200 mA) Vsat(C) – 1.1 1.5 V Vsat(E) – 1.5 2.5 – – 100 100 200 200 – – 40 40 100 100 REFERENCE SECTION Reference Voltage (IO = 1.0 mA, TA 25°C) TA = Tlow to Thigh – MC34060A TA = Tlow to Thigh – MC33060A OUTPUT SECTION Collector Off–State Current (VCC = 40 V, VCE = 40 V) Output Voltage Rise Time (TA = 25°C) Common–Emitter (See Figure 12) Emitter–Follower (See Figure 13) tr Output Voltage Fall Time (TA = 25°C) Common–Emitter (See Figure 12) Emitter–Follower (See Figure 13) tr ns 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 µA Input Common Mode Voltage Range (VCC = 40 V) VICR 0 to VCC –2.0 – – V VIR(INV) –0.3 to VCC–2.0 – – V AVOL 70 95 – dB Unity–Gain Crossover Frequency (VO = 0.5 V to 3.5 V, RL = 2.0 kΩ) fc – 600 – kHz Phase Margin at Unity–Gain (VO = 0.5 V to 3.5 V, RL = 2.0 kΩ) φm – 65 – deg. Common Mode Rejection Ratio (VCC = 40 V, Vin = 0 V to 38 V)) CMRR 65 90 – dB Power Supply Rejection Ratio (∆VCC = 33 V, VO = 2.5 V, RL = 2.0 kΩ) PSRR – 100 – dB Inverting Input Voltage Range Open–Loop Voltage Gain (∆VO = 3.0 V, VO = 0.5 V to 3.5 V, RL = 2.0 kΩ) 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 2. Low duty cycle techniques are used during test to maintain junction temperature as close to ambient temperatures as possible. Thigh = +85°C for MC33060A Tlow = –40°C for MC33060A = 0°C for MC34060A = +70°C for MC34060A http://onsemi.com 3 MC34060A, MC33060A ELECTRICAL CHARACTERISTICS (continued) (VCC = 15 V, CT = 0.01 µF, RT = 12 kΩ, 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 VTH – 3.5 4.5 V II 0.3 0.7 – mA Input Bias Current (Pin 4) (Vin = 0 V to 5.25 V) IIB(DT) – –1.0 –10 µA Maximum Output Duty Cycle (Vin = 0 V, CT = 0.01 µF, RT = 12 kΩ) (Vin = 0 V, CT = 0.001 µF, RT = 47 kΩ) DCmax 90 – 96 92 100 – – 0 2.8 – 3.3 – 9.7 9.5 9.0 – 10.5 – – 25 11.3 11.5 11.5 – σfosc – 1.5 – % Frequency Change with Voltage (VCC = 7.0 V to 40 V) ∆fosc(∆V) – 0.5 2.0 % Frequency Change with Temperature (∆TA =Tlow to Thigh) (CT = 0.01 µF, RT = 12 kΩ) ∆fosc(∆T) – – 4.0 – – – PWM COMPARATOR SECTION (Test circuit Figure 11) Input Threshold Voltage (Zero Duty Cycle) Input Sink Current (V[Pin 3] = 0.7 V) DEAD–TIME CONTROL SECTION (Test circuit Figure 11) Input Threshold Voltage (Pin 4) (Zero Duty Cycle) (Maximum Duty Cycle) % VTH V OSCILLATOR SECTION fosc Frequency (CT = 0.01 µF, RT = 12 kΩ, TA = 25°C) TA = Tlow to Thigh – MC34060A TA = Tlow to Thigh – MC33060A (CT = 0.001 µF, RT = 47 kΩ) Standard Deviation of Frequency* (CT = 0.001 µF, RT = 47 kΩ) kHz % 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 Average Supply Current (V[Pin 4] = 2.0 V, CT = 0.001 µF, RT = 47 kΩ). See Figure 11. IS mA – – 5.5 7.0 10 15 – 7.0 – N *Standard deviation is a measure of the statistical distribution about the mean as derived from the formula; σ = http://onsemi.com 4 Σ (xn –x)2 n–1 N–1 mA MC34060A, MC33060A 6 RT CT Dead-Time Control Reference Regulator Oscillator 5 0.12V 4 0.7V - VCC Ref Out + VTH 9 PWM. Comparator 1 1 2 Error Amp 1 12 - ≈ 0.7mA - Undervoltage Lockout - + + + Dead-Time Comparator 10 2 3 Feedback/PWM Comparator Input Q1 8 + Collector Emitter 13 14 Error Amp 2 7 Gnd This device contains 46 active transistors. Figure 1. Block Diagram 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 CT. The approximate oscillator frequency is determined by: fosc Output pulse width modulation is accomplished by comparison of the positive sawtooth waveform across capacitor CT 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.) 1.2 RT • CT For more information refer to Figure 3. Capacitor CT Feedback/P.W.M. Comparator Dead-Time Control Output Q1, Emitter Figure 2. Timing Diagram http://onsemi.com 5 MC34060A, MC33060A APPLICATIONS INFORMATION pin varies from 0.5 V to 3.5 V. Both error amplifiers have a common mode input range from –0.3 V to (VCC –2.0 V), and may be used to sense power supply output voltage and current. The error–amplifier outputs are active high and are ORed together at the noninverting input of the pulse–width modulator comparator. With this configuration, the amplifier that demands minimum output on time, dominates control of the loop. The MC34060A has an internal 5.0 V reference capable of sourcing up to 10 mA of load currents for external bias circuits. The reference has an internal accuracy of ±5% with a typical thermal drift of less than 50 mV over an operating temperature range of 0° to +70°C. The control signals are external inputs that can be fed into the dead–time control, the error amplifier inputs, or the feed–back input. The dead–time control comparator has an effective 120 mV input offset which limits the minimum output dead time to approximately the first 4% of the sawtooth–cycle time. This would result in a maximum duty cycle of 96%. Additional dead time may be imposed on the output by setting the dead time–control input to a fixed voltage, ranging between 0 V to 3.3 V. The pulse width modulator comparator provides a means for the error amplifiers to adjust the output pulse width from the maximum percent on–time, established by the dead time control input, down to zero, as the voltage at the feedback http://onsemi.com 6 A VOL , OPEN LOOP VOLTAGE GAIN (dB) f osc , OSCILLATOR FREQUENCY (Hz) 500 k VCC = 15 V 0.001 µF 100 k 10 k CT = 0.01 µF 1.0 µF 1.0 k 500 1.0 k 5.0 k 10 k 20 k 50 k 100 k 200 k 500 k 1.0 M RT, TIMING RESISTANCE (Ω) 2.0 k 120 110 100 90 80 70 60 50 40 30 20 10 0 1.0 20 18 100 16 80 14 12 CT = 0.001 µF 10 8.0 6.0 AVOL θ 10 0.01 µF 4.0 100 k VCC = 15 V CT = 0.001 RT = 47 k 60 40 20 2.0 0 500 1.0 k 10 k 100 k fosc, OSCILLATOR FREQUENCY (Hz) 0 500 k 0 Figure 5. Percent Deadtime versus Oscillator Frequency 3.5 V CE(SAT) , SATURATION VOLTAGE (V) 2.0 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 2.0 3.0 DEAD-TIME CONTROL VOLTAGE (V) Figure 6. Percent Duty Cycle versus Dead–Time Control Voltage 1.9 V CE(SAT) , SATURATION VOLTAGE (V) 100 1.0 k 10 k f, FREQUENCY (Hz) 0 -20 -40 -60 -80 -100 -120 -140 -160 -180 1.0 M Figure 4. Open Loop Voltage Gain and Phase versus Frequency PERCENT DUTY CYCLE (%) % DT, PERCENT DEADTIME, Q1 OUTPUT Figure 3. Oscillator Frequency versus Timing Resistance VCC = 15 V ∆VO = 3.0 V RL = 2.0 kΩ θ , EXCESS PHASE (DEGREES) MC34060A, MC33060A 0 100 200 300 IE, EMITTER CURRENT (mA) 400 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 500 0 100 200 300 400 IC, COLLECTOR CURRENT (mA) Figure 8. Common–Emitter Configuration Output Saturation Voltage versus Collector Current Figure 7. Emitter–Follower Configuration Output Saturation Voltage versus Emitter Current http://onsemi.com 7 500 MC34060A, MC33060A VTH , UNDERVOLTAGE LOCKOUT THRESHOLD (V) 10 I CC, SUPPLY CURRENT (mA) 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 0 5.0 10 15 20 25 30 35 40 VCC, SUPPLY VOLTAGE (V) 6.0 5.5 Turn On 5.0 Turn Off 4.5 4.0 0 5.0 10 15 20 25 30 35 40 IL, REFERENCE LOAD CURRENT (mA) Figure 9. Standby Supply Current versus Supply Voltage Figure 10. Undervoltage Lockout Thresholds versus Reference Load Current VCC = 15V + Vin Test Inputs Error Amplifier Under Test Feedback RT CT (+) (-) Error (+) (-) Feedback Terminal (Pin 3) + Vref - 50kΩ Output C E Ref Out Gnd Other Error Amplifier Figure 11. Error Amplifier Characteristics Figure 12. Deadtime and Feedback Control 15V RL 68Ω C CL 15pF Output Transistor 15V Output Transistor VC C E RL 68Ω E 90% VC 150Ω 2W VCC DeadTime VE CL 15pF 90% 90% 90% VE 10% 10% tr 10% tf 10% tr tf Figure 14. Emitter–Follower Configuration and Waveform Figure 13. Common–Emitter Configuration and Waveform http://onsemi.com 8 MC34060A, MC33060A VO To Output Voltage of System Vref R1 1 + 3 Vref - 2 1 + Error Amp R2 R2 3 Error Amp - 2 R1 Positive Output Voltage Negative Output Voltage R1 VO = Vref (1 + ) R2 R1 VO = -Vref (1 + ) R2 VO To Output Voltage of System Figure 15. Error Amplifier Sensing Techniques R1 Vref Output Q DT 6 RT 5 4 + CT R2 Output 47k 0.001 Max % On Time ≈ 92 - Q 160 R 1+ 1 R2 DT 4 R2 Figure 16. Deadtime Control Circuit Figure 17. Soft–Start Circuit Vref 6 RT Master 5 RT R1 Vref CT CT Vref 6 5 RT Slave CT (Additional Circuits) Figure 18. Slaving Two or More Control Circuits http://onsemi.com 9 - CS MC34060A, MC33060A 150µH @ 2.0A Vin = 8.0V to 40V Vout Tip 32 5.0V/1.0A 47 4.7k 0.01 47k 1 MC34060A + 0.01 13 12 E Gnd Vref 4 10/16V 150 + 4.7k CT 5 + MR850 - DT 4.7k 9 Comp 14 4.7k C - 3 + 75 + 2 1.0M 50/50 10 VCC 8 7 RT 6 0.001 47k 390 0.1 Test Conditions Results Line Regulation Vin = 8.0 V to 40 V, IO = 1.0 A 25 mV 0.5% Load Regulation Vin = 12 V, IO = 1.0 mA to 1.0 A 3.0 mV 0.06% Output Ripple Vin = 12 V, IO = 1.0 A 75 mV p–p P.A.R.D. Short Circuit Current Vin = 12 V, RL = 0.1 Ω 1.6 A Efficiency Vin = 12 V, IO = 1.0 A 73% Figure 19. Step–Down Converter with Soft–Start and Output Current Limiting http://onsemi.com 10 1000 6.3V MC34060A, MC33060A 150µH @ 4.0A Vin = 8.0V to 26V 20µH @ 1.0A * MR850 Vout 28V/ 0.5A 22k 10 0.05 33k 4.7k 50/35V 1 2 2.7M 3 + 14 3.9k 13 12 VCC + C - 9 Comp + MC34060A + - E Vref Gnd DT 4.7k 4 CT 8 300 Tip 111 7 0.1 RT 6 5 0.001 47k 470 390 Test Conditions Results Line Regulation Vin = 8.0 V to 26 V, IO = 0.5 A Load Regulation Vin = 12 V, IO = 1.0 mA to 0.5 A Output Ripple Vin = 12 V, IO = 0.5 A 24 mV p–p P.A.R.D. Efficiency Vin = 12 V, IO = 0.5 A 75% *Optional circuit to minimize output ripple Figure 20. Step–Up Converter http://onsemi.com 11 40 mV 0.14% 5.0 mV 0.18% + 470/ 35V * 470/ 35V MC34060A, MC33060A Vin = 8.0V to 40V Tip 32C Vout MR851 20µH * @ 1.0A 47 -15V/ 0.25A 30k 10 0.01 47k 7.5k 50/50V 1 2 1.0M 3 + 14 0.01 13 12 C - 150µH @ 2.0A MC34060A + - E Vref Gnd DT 10/16V 4 CT + * 330/ + 16V 330/ 16V 8 7 RT 5 6 0.001 4.7k 3.3k 9 Comp 10k 47k 75 VCC + 47k 820 1.0 Test Conditions Results Line Regulation Vin = 8.0 V to 40 V, IO = 250 mA 52 mV 0.35% Load Regulation Vin = 12 V, IO = 1.0 to 250 mA 47 mV 0.32% Output Ripple Vin = 12 V, IO = 250 mA Short Circuit Current Vin = 12 V, RL = 0.1 Ω Efficiency Vin = 12 V, IO = 250 mA 10 mV p–p P.A.R.D. 330 mA 86% *Optional circuit to minimize output ripple Figure 21. Step–Up/Down Voltage Inverting Converter with Soft–Start and Current Limiting http://onsemi.com 12 T2 1N4003 3 each 0.0047 UL/CSA * T1 * * 2200/10V 3/200 Vac 1N4934 1N4001 + * 180/200V 1 1N4742 1.0A 47/25V 22k 2 T 15Ω Cold 2.2M 7.5k 1N4687 6.8k 3 14 13 http://onsemi.com 13 12 8.2k C Comp 1.5k 1N4937 E Gnd Vref DT 4 CT RT 5 6 10/25V 8 10/35V L3 Common + 10/35V 1N4934 200 0.001 10 47 47k 1.0 11k Conditions MJE 13005 + MPS A55 7 1N4148 Test + MPS A05 MC34060A - 27k 0.01 9 + + Pout 25k 1000/25V 12/075A + -12/0.75A - *Optional R.F.I. Filter Vout 5.0k + + 100/10V 5.0V/3.0A + L2 1N4934 1000/25V + + 2.7k Results Line Regulation 5.0 V V in = 95 Vac to 135 Vac, IO = 3.0 A 20 mV 0.40% Line Regulation ±12 V V in = 95 Vac to 135 Vac, IO = ±0.75 A 52 mV 0.26% Load Regulation 5.0 V V in = 115 Vac, IO = 1.0 A to 4.0 A 476 mV 9.5% Load Regulation ±12 V V in = 115 Vac, IO = ±0.4 A to ±0.9 A Output Ripple 5.0 V V in = 115 Vac, IO = 3.0 A 45 mV p–p P.A.R.D. Output Ripple ±12 V V in = 115 Vac, IO = ±0.75 A 75 mV p–p P.A.R.D. Efficiency V in = 115 Vac, IO 5.0 V = 3.0 A IO ±12 V = ±0.75 A 300 mV 2.5% 74% T1 – Coilcraft W2961 T2 – Core: Coilcraft 11–464–16, 0.025″ gap in each leg. Bobbin: Coilcraft 37–573 Windings: Primary, 2 each, 75 turns #25 Awg Bifilar wound Feedback: 15 turns #26 Awg Secondary, 5.0 V, 6 turns @33 Awg Bifilar wound Secondary, 2 each, 14 turns #24 Awg Bifilar wound L1 – Coilcraft Z7156, 15 µH @ 5.0 A L2, L3 – Coilcraft Z7157, 25 µH @ 1.0 A Figure 22. 33 W Off–Line Flyback Converter with Soft–Start and Primary Power Limiting MC34060A, MC33060A 115 Vac ± 20% 33k 0.01 10 VCC L1 1N5824 MC34060A, MC33060A ORDERING INFORMATION Device Operating Temperature Range MC34060AD MC34060ADR2 Package Shipping SO–14 55 Units/Rail SO–14 2500 Tape & Reel MC34060AP PDIP–14 25 Units/Rail MC33060AD SO–14 55 Units/Rail SO–14 2500 Tape & Reel PDIP–14 25 Units/Rail MC33060ADR2 TA= 0° to +70°C TA= –40° to +85°C MC33060AP http://onsemi.com 14 MC34060A, MC33060A PACKAGE DIMENSIONS PDIP–14 P SUFFIX CASE 646–06 ISSUE M 14 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. 8 B 1 7 A F DIM A B C D F G H J K L M N L N C –T– SEATING PLANE J K H D 14 PL G M 0.13 (0.005) INCHES MIN MAX 0.715 0.770 0.240 0.260 0.145 0.185 0.015 0.021 0.040 0.070 0.100 BSC 0.052 0.095 0.008 0.015 0.115 0.135 0.290 0.310 --10 0.015 0.039 MILLIMETERS MIN MAX 18.16 18.80 6.10 6.60 3.69 4.69 0.38 0.53 1.02 1.78 2.54 BSC 1.32 2.41 0.20 0.38 2.92 3.43 7.37 7.87 --10 0.38 1.01 M SO–14 D SUFFIX CASE 751A–03 ISSUE F 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– 14 8 –B– 1 P 7 PL 0.25 (0.010) 7 G B M M F R X 45 C –T– SEATING PLANE D 14 PL 0.25 (0.010) M K M T B S A S http://onsemi.com 15 J DIM A B C D F G J K M P R MILLIMETERS MIN MAX 8.55 8.75 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0 7 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.337 0.344 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0 7 0.228 0.244 0.010 0.019 MC34060A, MC33060A SWITCHMODE is a trademark of Semiconductor Components Industries, LLC. ON Semiconductor and are 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. 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PUBLICATION ORDERING INFORMATION 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: [email protected] JAPAN: ON Semiconductor, Japan Customer Focus Center 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031 Phone: 81–3–5740–2700 Email: [email protected] ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. N. American Technical Support: 800–282–9855 Toll Free USA/Canada http://onsemi.com 16 MC34060A/D