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NCP1050ST100T3G

NCP1050ST100T3G

  • 厂商:

    ONSEMI(安森美)

  • 封装:

    TO-261-4,TO-261AA

  • 描述:

    IC CONV PWM UVLO HV SOT223-4

  • 详情介绍
  • 数据手册
  • 价格&库存
NCP1050ST100T3G 数据手册
ON Semiconductor Is Now To learn more about onsemi™, please visit our website at www.onsemi.com onsemi and       and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. onsemi reserves the right to make changes at any time to any products or information herein, without notice. The information herein is provided “as-is” and onsemi makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi 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. Buyer is responsible for its products and applications using onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by onsemi. “Typical” parameters which may be provided in onsemi 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. onsemi does not convey any license under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and hold onsemi and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that onsemi was negligent regarding the design or manufacture of the part. onsemi is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. Other names and brands may be claimed as the property of others. NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 Monolithic High Voltage Gated Oscillator Power Switching Regulator www.onsemi.com The NCP1050 through NCP1055 are monolithic high voltage regulators that enable end product equipment to be compliant with low standby power requirements. This device series combines the required converter functions allowing a simple and economical power system solution for office automation, consumer, and industrial products. These devices are designed to operate directly from a rectified AC line source. In flyback converter applications they are capable of providing an output power that ranges from 6.0 W to 40 W with a fixed AC input of 100 V, 115 V, or 230 V, and 3.0 W to 20 W with a variable AC input that ranges from 85 V to 265 V. This device series features an active startup regulator circuit that eliminates the need for an auxiliary bias winding on the converter transformer, fault detector and a programmable timer for converter overload protection, unique gated oscillator configuration for extremely fast loop response with double pulse suppression, power switch current limiting, input undervoltage lockout with hysteresis, thermal shutdown, and auto restart fault detection. These devices are available in economical 8−pin dual−in−line and 4−pin SOT−223 packages. MARKING DIAGRAMS 8 PDIP−8 P SUFFIX CASE 626A 8 1 • • • • • • • • • • • • AYW N5XZG G 1 Pin: 1.VCC 2.Control Input 3.Power Switch Drain 4.Ground • Startup Circuit Eliminates the Need for Transformer Auxiliary Bias Winding Optional Auxiliary Bias Winding Override for Lowest Standby Power Applications Converter Output Overload and Open Loop Protection Auto Restart Fault Protection IC Thermal Fault Protection Unique, Dual Edge, Gated Oscillator Configuration for Extremely Fast Loop Response Oscillator Frequency Dithering with Controlled Slew Rate Driver for Reduced EMI Low Power Consumption Allowing European Blue Angel Compliance On−Chip 700 V Power Switch Circuit and Active Startup Circuit Rectified AC Line Source Operation from 85 V to 265 V Input Undervoltage Lockout with Hysteresis Oscillator Frequency Options of 44 kHz, 100 kHz, 136 kHz These are Pb−Free and Halide−Free Devices 1 Pin: 1. VCC 2. Control Input 3, 7−8. Ground 4. No Connection 5. Power Switch Drain SOT−223 ST SUFFIX CASE 318E Features NCP105XZ AWL YYWWG X Z = Current Limit (0, 1, 2, 3, 4, 5) = Oscillator Frequency A = 44 kHz, B = 100 kHz, C = 136 kHz A = Assembly Location WL, = Wafer Lot YY, Y = Year WW, W = Work Week G or G = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION See detailed ordering and shipping information on page 22 of this data sheet. Typical Applications • • • • AC−DC Converters Wall Adapters Portable Electronic Chargers Low Power Standby and Keep−Alive Supplies © Semiconductor Components Industries, LLC, 2015 April, 2015 − Rev. 14 1 Publication Order Number: NCP1050/D NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 + AC Line Input + Snubber Power Switch Circuit Output VCC + + Converter DC Output − 5 Startup & VCC Regulator Circuit 1 Power Switch Circuit Fault Detector Control Input 2 Oscillator & Gating Logic Ground 3, 7−8 Figure 1. Typical Application Pin Function Description Pin (SOT−223) Pin (PDIP−8) Function 1 1 VCC 2 2 Control Input The Power Switch Circuit is turned off when a current greater than approximately 50 A is drawn out of or applied to this pin. A 10 V clamp is built onto the chip to protect the device from ESD damage or overvoltage conditions. 4 3, 7, 8 Ground This pin is the control circuit and Power Switch Circuit ground. It is part of the integrated circuit lead frame. − 4 No Connection 3 5 Power Switch Drain Description This is the positive supply voltage input. During startup, power is supplied to this input from Pin 5. When VCC reaches VCC(on), the Startup Circuit turns off and the output is allowed to begin switching with 1.0 V hysteresis on the VCC pin. The capacitance connected to this pin programs fault timing and frequency modulation rate. This pin is designed to directly drive the converter transformer primary, and internally connects to Power Switch and Startup Circuit. www.onsemi.com 2 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 + AC Line Input Snubber + + Converter DC Output − Power Switch Circuit Output VCC + Startup/VCC Reg 10 V + − + VCC Bypass/ Fault Timing/ VCO Sweep Control Startup Circuit 7.5/8.5 V Undervoltage Lockout Fault Detector Internal Bias Power Switch Circuit Q − + + Fault Latch S Thermal Shutdown R Driver 4.5 V VCC Oscillator IH = 10 A 48 A Turn On Latch Turn Off Latch R 2.6 V Q + Ck S Control Input Q R 10 V + − Current Limit Comparator + 3.3 V 48 A Leading Edge Blanking + RSENSE IH = 10 A Ground Figure 2. Representative Block Diagram www.onsemi.com 3 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 fOSC (high) 8.5 V fOSC (low) VCC 7.5 V Oscillator Duty Cycle Oscillator Clock 47.5 A 37.5 A ICONTROL, SINK 0 A Leading Edge On Duty Cycle Off Leading Edge On Feedback Off Delay On Duty Cycle Off Leading Edge On Duty Cycle Off No Second Pulse Leading Edge On Current Limit Off Power Switch Circuit Gate Drive Current Limit Threshold Primary Current Current Limit Propagation De lay Figure 3. Timing Diagram for Gated Oscillator with Dual Edge PWM www.onsemi.com 4 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 ICC1, Current Measurement ICC2, Current Measurement VCC(on) Hysteretic Regulation VCC VCC(off) VCC(reset) ICC3, Current Measurement 0V 6.3 mA I(start) 0 mA ICC1 ICC ICC2 ICC3 0 mA I(start) 47.5 A 37.5 A ICONTROL, SINK 0 A V(pin 5) Fault Removed Fault Applied Figure 4. Non−Latching Fault Condition Timing Diagram www.onsemi.com 5 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 MAXIMUM RATINGS Rating Power Switch and Startup Circuit Drain Voltage Range Drain Current Peak During Transformer Saturation Power Supply/VCC Bypass and Control Input Voltage Range Current Thermal Characteristics P Suffix, Plastic Package Case 626A−01 Junction−to−Lead Junction−to−Air, 2.0 Oz. Printed Circuit Copper Clad 0.36 Sq. Inch 1.0 Sq. Inch ST Suffix, Plastic Package Case 318E−04 Junction−to−Lead Junction−to−Air, 2.0 Oz. Printed Circuit Copper Clad 0.36 Sq. Inch 1.0 Sq. Inch Symbol Value Unit VDS IDS(pk) *0.3 to 700 2.0 x Ilim Max V A VIR Imax *0.3 to 10 100 V mA °C/W RJL RJA 9.0 RJL RJA 14 Operating Junction Temperature TJ *40 to +150 °C Storage Temperature Tstg *65 to +150 °C 77 60 74 55 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. This device series contains ESD protection and exceeds the following tests: Pins 1−3: Human Body Model 2000 V per JEDEC JESD22−A114−F. Machine Model Method 400 V per JEDEC JESD22−A115−A. Pin 5: Human Body Model 1000 V per JEDEC JESD22−A114−F. Machine Model Method 400 V per JEDEC JESD22−A115−A. Pin 5 is connected to the power switch and start−up circuits, and is rated only to the max voltage of the part, or 700 V. Charged Device Model (CDM) 1000 V per JEDEC Standard JESD22−C101E. 2. This device contains Latch−up protection and exceeds $100 mA per JEDEC Standard JESD78. www.onsemi.com 6 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 ELECTRICAL CHARACTERISTICS (VCC = 8.0 V, for typical values TJ = 25°C, for min/max values, TJ is the operating junction temperature range that applies (Note 3), unless otherwise noted.) Characteristics Symbol Min Typ Max Unit OSCILLATOR Frequency (VCC = 7.5 V) TJ = 25°C: 44 kHz Version 100 kHz Version 136 kHz Version TJ = Tlow to Thigh 44 kHz Version 100 kHz Version 136 kHz Version fOSC(low) Frequency (VCC = 8.5 V) TJ = 25°C: 44 kHz Version 100 kHz Version 136 kHz Version TJ = Tlow to Thigh 44 kHz Version 100 kHz Version 136 kHz Version fOSC(high) kHz 38 87 119 42.5 97 132 47 107 145 37 84 113 − − − 47 107 145 kHz 41 93 126 45.5 103 140 50 113 154 39 90 120 − − − 50 113 154 Frequency Sweep (VCC = 7.5 V to 8.5 V, TJ = 25°C) %fOSC − 5.0 − % Maximum Duty Cycle D(max) 74 77 80 % Ioff(low) Ion(low) −58 −50 −47.5 −37.5 −37 −25 Ioff(high) Ion(high) 37 25 47.5 37.5 58 50 Vlow Vhigh 1.1 4.2 1.35 4.6 1.6 5.0 CONTROL INPUT Lower Window Input Current Threshold Switching Enabled, Sink Current Increasing Switching Disabled, Sink Current Decreasing Upper Window Input Current Threshold Switching Enabled, Source Current Increasing Switching Disabled, Source Current Decreasing Control Window Input Voltage Lower (Isink = 25 A) Upper (Isource = 25 A) 3. Tested junction temperature range for the NCP105X series: Thigh = +125°C Tlow = −40°C www.onsemi.com 7 A V NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 ELECTRICAL CHARACTERISTICS (VCC = 8.0 V, for typical values TJ = 25°C, for min/max values, TJ is the operating junction temperature range that applies (Note 4), unless otherwise noted.) Characteristics Symbol Min Typ Max Unit POWER SWITCH CIRCUIT Power Switch Circuit On−State Resistance NCP1050, NCP1051, NCP1052 (ID = 50 mA) TJ = 25°C TJ = 125°C NCP1053, NCP1054, NCP1055 (ID = 100 mA) TJ = 25°C TJ = 125°C RDS(on) Power Switch Circuit & Startup Breakdown Voltage (ID(off) = 100 A, TA = 25°C) V(BR)DS Power Switch Circuit & Startup Circuit Off−State Leakage Current (VDS = 650 V) TJ = 25°C (VDS = 650 V) TJ = 125°C − − 22 42 30 55 − − 10 23 15 28 700 − − − − 25 15 40 80 − − 20 10 − − 93 186 279 372 493 632 100 200 300 400 530 680 107 214 321 428 567 728 − 0 10 − − 135 160 − − Tsd TH 140 − 160 75 − − VCC(on) VCC(off) VH 8.0 7.0 − 8.5 7.5 1.0 9.0 8.0 − VCC(reset) 4.0 4.5 5.0 IDS(off) Switching Characteristics (RL = 50 , VDS set for ID = 0.7 IIim) Turn−on Time (90% to 10%) Turn−off Time (10% to 90%)  ton toff V A ns CURRENT LIMIT AND THERMAL PROTECTION Current Limit Threshold (TJ = 25°C) (Note 7) NCP1050 NCP1051 NCP1052 NCP1053 NCP1054 NCP1055 Ilim I2fOSC Conversion Power Deviation (TJ = 25°C) (Note 8) Propagation Delay, Current Limit Threshold to Power Switch Circuit Output NCP1050, NCP1051, NCP1052 NCP1053, NCP1054, NCP1055 Thermal Protection (VCC = 8.6 V) (Note 4, 5, 6) Shutdown (Junction Temperature Increasing) Hysteresis (Junction Temperature Decreasing) tPLH mA %A2Hz ns °C STARTUP CONTROL Startup/VCC Regulation Startup Threshold/VCC Regulation Peak (VCC Increasing) Minimum Operating/VCC Valley Voltage After Turn−On Hysteresis Undervoltage Lockout Threshold Voltage, VCC Decreasing Startup Circuit Output Current (Power Switch Circuit Output = 40 V) VCC = 0 V TJ = 25°C TJ = −40 to 125°C VCC = VCC(on) − 0.2 V TJ = 25°C TJ = −40 to 125°C Istart Minimum Start−up Drain Voltage (Istart = 0.5 mA, VCC = VCC(on) − 0.2 V) Output Fault Condition Auto Restart (VCC Capacitor = 10 F, Power Switch Circuit Output = 40 V) Average Switching Duty Cycle Frequency 8 V mA 5.4 4.5 6.3 − 7.2 8.0 4.6 3.5 5.6 − 6.6 7.0 Vstart(min) − 13.4 20 V Drst frst − − 6.0 3.5 − − % Hz 4. Tested junction temperature range for the NCP105X series: Thigh = +125°C Tlow = −40°C 5. Maximum package power dissipation limits must be observed. 6. Guaranteed by design only. 7. Adjust di/dt to reach Ilim in 4.0 sec. 8. Consult factory for additional options including test and trim for output power accuracy. www.onsemi.com V NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 ELECTRICAL CHARACTERISTICS (VCC = 8.0 V, for typical values TJ = 25°C, for min/max values, TJ is the operating junction temperature range that applies (Note 9), unless otherwise noted.) Characteristics Symbol Min Typ Max Unit TOTAL DEVICE Power Supply Current After UVLO Turn−On (Note 10) Power Switch Circuit Enabled NCP1050, NCP1051, NCP1052 44 kHz Version 100 kHz Version 136 kHz Version NCP1053, NCP1054, NCP1055 44 kHz Version 100 kHz Version 136 kHz Version Power Switch Circuit Disabled Non−Fault Condition Fault Condition mA ICC1 ICC2 ICC3 9. Tested junction temperature range for the NCP105X series: Thigh = +125°C Tlow = −40°C 10. See Non−Latching Fault Condition Timing Diagram in Figure 4. www.onsemi.com 9 0.35 0.40 0.40 0.45 0.50 0.525 0.55 0.60 0.65 0.40 0.45 0.50 0.50 0.575 0.65 0.60 0.70 0.80 0.35 0.10 0.45 0.175 0.55 0.25 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 TYPICAL CHARACTERISTICS 104 VCC = VCC(on) OSCILLATOR FREQUENCY (kHz) OSCILLATOR FREQUENCY (kHz) 46 45 44 VCC = VCC(off) 43 42 41 40 −50 −25 0 25 50 75 100 125 VCC = VCC(on) 102 100 98 VCC = VCC(off) 96 94 92 −50 −25 150 0 TEMPERATURE (°C) Figure 5. Oscillator Frequency (44 kHz Version) versus Temperature FREQUENCY SWEEP (kHz) OSCILLATOR FREQUENCY (kHz) 138 136 VCC = VCC(off) 132 130 128 100 125 150 8 136 kHz 7 100 kHz 6 5 4 3 44 kHz 2 1 126 124 −50 −25 0 25 50 75 100 125 0 −50 −25 150 0 TEMPERATURE (°C) 77.2 77.0 76.8 76.6 76.4 25 50 75 100 125 150 TEMPERATURE (°C) SINK CONTROL CURRENT THRESHOLD (A) 77.4 0 50 75 100 125 150 125 150 Figure 8. Frequency Sweep versus Temperature 77.6 76.2 −50 −25 25 TEMPERATURE (°C) Figure 7. Oscillator Frequency (136 kHz Version) versus Temperature MAXIMUM DUTY CYCLE (%) 75 9 VCC = VCC(on) 134 50 Figure 6. Oscillator Frequency (100 kHz Version) versus Temperature 142 140 25 TEMPERATURE (°C) 55 CURRENT RISING 50 45 40 CURRENT FALLING 35 30 −50 −25 Figure 9. Maximum Duty Cycle versus Temperature 0 25 50 75 100 TEMPERATURE (°C) Figure 10. Lower Window Control Input Current Thresholds versus Temperature www.onsemi.com 10 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 1.39 50 1.38 CURRENT RISING 46 1.37 CLAMP VOLTAGE (V) SOURCE CONTROL CURRENT THRESHOLD (A) TYPICAL CHARACTERISTICS 42 38 CURRENT FALLING 34 1.36 1.35 1.34 1.32 1.31 1.30 30 −50 −25 0 25 50 75 100 125 1.29 1.28 −50 −25 150 0 50 75 100 Figure 11. Upper Window Control Input Current Thresholds versus Temperature 150 Figure 12. Control Input Lower Window Clamp Voltage versus Temperature 45 40 ON RESISTANCE () 4.62 4.60 ISOURCE = 25 A 4.58 4.56 4.54 NCP1050,1,2 (ID = 50 mA) 35 30 25 20 NCP1053,4,5 (ID = 100 mA) 15 10 5 4.52 −50 −25 0 25 50 75 100 125 0 −50 −25 150 0 TEMPERATURE (°C) 25 50 100 75 125 150 TEMPERATURE (°C) Figure 13. Control Input Upper Window Clamp Voltage versus Temperature Figure 14. On Resistance versus Temperature 120 100 TJ = 25°C CAPACITANCE (pF) 100 80 60 TJ = −40°C 40 TJ = 25°C 20 0 125 TEMPERATURE (°C) 4.64 LEAKAGE CURRENT (A) 25 TEMPERATURE (°C) 4.66 CLAMP VOLTAGE (V) ISINK = 25 A 1.33 NCP1053,4,5 10 NCP1050,1,2 TJ = 125°C 0 100 200 300 400 500 600 700 800 900 1 0 APPLIED VOLTAGE (V) 100 200 300 400 500 600 APPLIED VOLTAGE (V) Figure 15. Power Switch and Startup Circuit Leakage Current versus Voltage Figure 16. Power Switch and Startup Circuit Output Capacitance versus Applied Voltage www.onsemi.com 11 700 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 1.02 8.6 1.00 8.4 SUPPLY THRESHOLD (V) NORMALIZED CURRENT LIMIT TYPICAL CHARACTERISTICS 0.98 0.96 0.94 0.92 0.90 0.88 −50 −25 0 25 50 75 100 125 STARTUP THRESHOLD VCC(on) 8.2 8.0 MINIMUM OPERATING THRESHOLD VCC(off) 7.8 7.6 7.4 7.2 −50 −25 150 0 4.54 7 4.52 START CURRENT (mA) UNDERVOLTAGE THRESHOLD (V) 75 100 125 150 8 4.56 4.50 4.48 4.46 4.44 4.42 4.40 4.38 4.36 4.34 −50 VCC = 0 V 6 5 4 VCC = 8.3 V 3 2 VPIN 5 = 20 V 1 −25 0 25 50 75 100 125 0 −50 −25 150 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) Figure 20. Start Current versus Temperature Figure 19. Undervoltage Lockout Threshold versus Temperature 8 7 VCC = 0 V 6 STARTUP CURRENT (mA) STARTUP CURRENT (mA) 50 Figure 18. Supply Voltage Thresholds versus Temperature Figure 17. Normalized Peak Current Limit versus Temperature 5 4 3 TJ = 25°C VPIN 5 = 20 V 2 1 0 25 TEMPERATURE (°C) TEMPERATURE (°C) 0 1 2 3 4 5 6 7 8 6 4 2 0 −2 9 VCC = 8 V TJ = 25°C 1 10 100 PIN 5 VOLTAGE (V) SUPPLY VOLTAGE (V) Figure 22. Startup Current versus Pin 5 Voltage Figure 21. Startup Current versus Supply Voltage www.onsemi.com 12 1000 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 TYPICAL CHARACTERISTICS 0.55 0.70 136 kHz 0.65 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 136 kHz 0.50 100 kHz 0.45 44 kHz 0.40 0.60 100 kHz 0.55 0.50 44 kHz 0.45 0.40 0.35 −50 −25 0 25 50 75 100 125 0.35 −50 150 −25 0 50 75 100 125 150 Figure 24. Supply Current versus Temperature (NCP1053/4/5) Figure 23. Supply Current versus Temperature (NCP1050/1/2) 0.48 0.21 0.20 SUPPLY CURRENT (mA) 0.47 0.46 0.45 0.44 0.43 0.42 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.41 −50 −25 0 25 50 75 100 125 150 0.12 −50 −25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) Figure 25. Supply Current When Switching Disable versus Temperature Figure 26. Supply Current in Fault Condition versus Temperature 14.0 CONDITION: VCC pin = 1 F to ground Control pin = open Drain pin = 1 k to Power Supply, Increase Voltage Until Switching 13.9 SUPPLY VOLTAGE (V) SUPPLY CURRENT (mA) 25 TEMPERATURE (°C) TEMPERATURE (°C) 13.8 13.7 13.6 13.5 13.4 13.3 13.2 13.1 13.0 −50 −25 0 25 50 75 100 125 150 TEMPERATURE (°C) Figure 27. Supply Voltage versus Temperature www.onsemi.com 13 150 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 OPERATING DESCRIPTION Introduction followers at approximately 47.5 A with 10 A hysteresis. When a source or sink current in excess of this value is applied to this input, a logic signal generated internally changes state to block power switch conduction. Since the output of the Control Input sense is sampled continuously during ton (77% duty cycle), it is possible to turn the Power Switch Circuit on or off at any time within ton. Because it does not have to wait for the next cycle (rising edge of the clock signal) to switch on, and because it does not have to wait for current limit to turn off, the circuit has a very fast transient response as shown in Figure 3. In a typical converter application the control input current is drawn by an optocoupler. The collector of the optocoupler is connected to the Control Input pin and the emitter is connected to ground. The optocoupler LED is mounted in series with a shunt regulator (typically a TL431) at the DC output of the converter. When the power supply output is greater than the reference voltage (shunt regulator voltage plus optocoupler diode voltage drop), the optocoupler turns on, pulling down on the Control Input. The control input logic is configured for line input sensing as well. The NCP105X series represents a new higher level of integration by providing on a single monolithic chip all of the active power, control, logic, and protection circuitry required to implement a high voltage flyback converter and compliance with very low standby power requirements for modern consumer electronic power supplies. This device series is designed for direct operation from a rectified 240 VAC line source and requires minimal external components for a complete cost sensitive converter solution. Potential markets include cellular phone chargers, standby power supplies for personal computers, secondary bias supplies for microprocessor keep−alive supplies and IR detectors. A description of each of the functional blocks is given below, and the representative block diagram is shown in Figure 2. This device series features an active startup regulator circuit that eliminates the need for an auxiliary bias winding on the converter transformer, fault logic with a programmable timer for converter overload protection, unique gated oscillator configuration for extremely fast loop response with double pulse suppression, oscillator frequency dithering with a controlled slew rate driver for reduced EMI, cycle−by−cycle current limiting, input undervoltage lockout with hysteresis, thermal shutdown, and auto restart or latched off fault detect device options. These devices are available in economical 8−pin PDIP and 4−pin SOT−223 packages. Turn On Latch The Oscillator output is typically a 77% positive duty cycle square waveform. This waveform is inverted and applied to the reset input of the turn−on latch to prevent any power switch conduction during the guaranteed off time. This square wave is also gated by the output of the control section and applied to the set input of the same latch. Because of this gating action, the power switch can be activated when the control input is not asserted and the oscillator output is high. The use of this unique gated Turn On Latch over an ordinary Gated Oscillator allows a faster load transient response. The power switch is allowed to turn on immediately, within the maximum duty cycle time period, when the control input signals a necessary change in state. Oscillator The Oscillator is a unique fixed−frequency, duty−cycle− controlled oscillator. It charges and discharges an on chip timing capacitor to generate a precise square wave signal used to pulse width modulate the Power Switch Circuit. During the discharge of the timing capacitor, the Oscillator duty cycle output holds one input of the Driver low. This action keeps the Power Switch Circuit off, thus limiting the maximum duty cycle. A frequency modulation feature is incorporated into the IC in order to aide in EMI reduction. Figure 3 illustrates this frequency modulation feature. The power supply voltage, VCC, acts as the input to the built−in voltage controlled oscillator. As the VCC voltage is swept across its nominal operating range of 7.5 to 8.5 V, the oscillator frequency is swept across its corresponding range. The center oscillator frequency is internally programmed for 44 kHz, 100 kHz, or 136 kHz operation with a controlled charge to discharge current ratio that yields a maximum Power Switch duty cycle of 77%. The Oscillator temperature characteristics are shown in Figures 5 through 9. Contact an ON Semiconductor sales representative for further information regarding frequency options. Turn Off Latch A Turn Off Latch feature has been incorporated into this device series to protect the power switch circuit from excessive current, and to reduce the possibility of output overshoot in reaction to a sudden load removal. If the Power Switch current reaches the specified maximum current limit, the Current Limit Comparator resets the Turn Off Latch and turns the Power Switch Circuit off. The turn off latch is also reset when the Oscillator output signal goes low or the Control Input is asserted, thus terminating output MOSFET conduction. Because of this response to control input signals, it provides a very fast transient response and very tight load regulation. The turn off latch has an edge triggered set input which ensures that the switch can only be activated once during any oscillator period. This is commonly referred to as double pulse suppression. Control Input The Control Input pin circuit has parallel source follower input stages with voltage clamps set at 1.35 and 4.6 V. Current sources clamp the input current through the www.onsemi.com 14 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 Current Limit Comparator and Power Switch Circuit Undervoltage Lockout The Power Switch Circuit is constructed with a SENSEFET™ in order to monitor the drain current. A portion of the current flowing through the circuit goes into a sense element, Rsense. The current limit comparator detects if the voltage across Rsense exceeds the reference level that is present at its inverting input. If this level is exceeded, the comparator quickly resets the Turn Off Latch, thus protecting the Power Switch Circuit. A Leading Edge Blanking circuit was placed in the current sensing signal path to prevent a premature reset of the Turn Off Latch. A potential premature reset signal is generated each time the Power Switch Circuit is driven into conduction and appears as a narrow voltage spike across current sense resistor Rsense. The spike is due to the Power Switch Circuit gate to source capacitance, transformer interwinding capacitance, and output rectifier recovery time. The Leading Edge Blanking circuit has a dynamic behavior that masks the current signal until the Power Switch Circuit turn−on transition is completed. The current limit propagation delay time is typically 135 to 165 nanoseconds. This time is measured from when an overcurrent appears at the Power Switch Circuit drain, to the beginning of turn−off. Care must be taken during transformer saturation so that the maximum device current limit rating is not exceeded. The high voltage Power Switch Circuit is monolithically integrated with the control logic circuitry and is designed to directly drive the converter transformer. Because the characteristics of the power switch circuit are well known, the gate drive has been tailored to control switching transitions to help limit electromagnetic interference (EMI). The Power Switch Circuit is capable of switching 700 V with an associated drain current that ranges nominally from 0.10 to 0.68 Amps. An Undervoltage Lockout (UVLO) comparator is included to guarantee that the integrated circuit has sufficient voltage to be fully functional. The UVLO comparator monitors the supply capacitor input voltage at Pin 1 and disables the Power Switch Circuit whenever the capacitor voltage drops below the undervoltage lockout threshold. When this level is crossed, the controller enters a new startup phase by turning the current source on. The supply voltage will then have to exceed the startup threshold in order to turn off the startup current source. Startup and normal operation of the converter are shown in Figure 3. Fault Detector The NCP105X series has integrated Fault Detector circuitry for detecting application fault conditions such as open loop, overload or a short circuited output. A timer is generated by driving the supply capacitor with a known current and hysteretically regulating the supply voltage between set thresholds. The timer period starts when the supply voltage reaches the nominal upper threshold of 8.5 V and stops when the drain current of the integrated circuit draws the supply capacitor voltage down to the undervoltage lockout threshold of 7.5 V. If, during this timer period, no feedback has been applied to the control input, the fault detect logic is set to indicate an abnormal condition. This may occur, for example, when the optocoupler fails or the output of the application is overloaded or completely shorted. In this case, the part will stop switching, go into a low power mode, and begin to draw down the supply capacitor to the reset threshold voltage of 4.5 V. At that time, the startup circuit will turn on again to drive the supply to the turn on threshold. Then the part will begin the cycle again, effectively sampling the control input to determine if the fault condition has been removed. This mode is commonly referred to as burst mode operation and is shown is Figure 4. Proper selection of the supply capacitor allows successful startup with monotonically increasing output voltage, without falsely sensing a fault condition. Figure 4 shows successful startup and the evolution of the signals involved in the presence of a fault. Startup Circuit Rectified AC line voltage is applied to the Startup Circuit on Pin 5, through the primary winding. The circuit is self−biasing and acts as a constant current source, gated by control logic. Upon application of the AC line voltage, this circuit routes current into the supply capacitor typically connected to Pin 1. During normal operation, this capacitor is hysteretically regulated from 7.5 to 8.5 V by monitoring the supply voltage with a comparator and controlling the startup current source accordingly. This Dynamic Self−Supply (DSS) functionality offers a great deal of applications flexibility as well. The startup circuit is rated at a maximum 700 V (maximum power dissipation limits must be observed). Thermal Shutdown The internal Thermal Shutdown block protects the device in the event that the maximum junction temperature is exceeded. When activated, typically at 160°C, one input of the Driver is held low to disable the Power Switch Circuit. The Power Switch is allowed to resume operation when the junction temperature falls below 85°C. The thermal shutdown feature is provided to prevent catastrophic device failures from accidental overheating. It is not intended to be used as a substitute for proper heatsinking. www.onsemi.com 15 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 APPLICATIONS to provide a tightly regulated DC output. IC3 is a shunt regulator that samples the output voltage by virtue of R5 and R6 to provide drive to the optocoupler, IC2, Light Emitting Diode (LED). C10 is used to compensate the shunt regulator. When the application is configured as a Charger, Q1 delivers additional drive to the optocoupler LED when in constant current operation by sampling the output current through R7 and R8. Two application examples have been provided in this document, and they are described in detail in this section. Figure 28 shows a Universal Input, 6 Watt Converter Application as well as a 5.5 Watt Charger Application using the NCP1053 @ 100 kHz. The Charger consists of the additional components Q1, C13, and R7 through R10, as shown. These were constructed and tested using the printed circuit board layout shown in Figure 40. The board consists of a fiberglass epoxy material (FR4) with a single side of two ounce per square foot (70 m thick) copper foil. Test data from the two applications is given in Figures 29 through 39. Both applications generate a well−regulated output voltage over a wide range of line input voltage and load current values. The charger application transitions to a constant current output if the load current is increased beyond a preset range. This can be very effective for battery charger application for portable products such as cellular telephones, personal digital assistants, and pagers. Using the NCP105X series in applications such as these offers a wide range of flexibility for the system designer. The NCP105X application offers a low cost alternative to other applications. It uses a Dynamic Self−Supply (DSS) function to generate its own operating supply voltage such that an auxiliary transformer winding is not needed. (It also offers the flexibility to override this function with an auxiliary winding if ultra−low standby power is the designer’s main concern.) This product also provides for automatic output overload, short circuit, and open loop protection by entering a programmable duty cycle burst mode of operation. This eliminates the need for expensive devices overrated for power dissipation or maximum current, or for redundant feedback loops. The application shown in Figure 28 can be broken down into sections for the purpose of operating description. Components C1, L1 and C6 provide EMI filtering for the design, although this is very dependent upon board layout, component type, etc. D1 through D4 along with C2 provide the AC to bulk DC rectification. The NCP1053 drives the primary side of the transformer, and the capacitor, C5, is an integral part of the Dynamic Self−Supply. R1, C3, and D5 comprise an RCD snubber and R2 and C4 comprise a ringing damper both acting together to protect the IC from voltage transients greater than 700 volts and reduce radiated noise from the converter. Diode D6 along with C7−9, L2, C11, and C12 rectify the transformer secondary and filter the output Component Selection Guidelines Choose snubber components R1, C3, and D5 such that the voltage on pin 5 is limited to the range from 0 to 700 volts. These components protect the IC from substrate injection if the voltage was to go below zero volts, and from avalanche if the voltage was to go above 700 volts, at the cost of slightly reduced efficiency. For lower power design, a simple RC snubber as shown, or connected to ground, can be sufficient. Ensure that these component values are chosen based upon the worst−case transformer leakage inductance and worst−case applied voltage. Choose R2 and C4 for best performance radiated switching noise. Capacitor C5 serves multiple purposes. It is used along with the internal startup circuitry to provide power to the IC in lieu of a separate auxiliary winding. It also serves to provide timing for the oscillator frequency sweep for limiting the conducted EMI emissions. The value of C5 will also determine the response during an output fault (overload or short circuit) or open loop condition as shown in Figure 4, along with the total output capacitance. Resistors R5 and R6 will determine the regulated output voltage along with the reference voltage chosen with IC3. The base to emitter voltage drop of Q1 along with the value of R7 will set the fixed current limit value of the Charger application. R9 is used to limit the base current of Q1. Component R8 can be selected to keep the current limit fixed with very low values of output voltage or to provide current limit foldback with results as shown in Figures 29 and 33. A relatively large value of R8 allows for enough output voltage to effectively drive the optocoupler LED for fixed current limit. A low value of R8, along with resistor R10, provides for a low average output power using the fault protection feature when the output voltage is very low. C13 provides for output voltage stability when the Charger application is in current limit. www.onsemi.com 16 Vin 85 − 265 VAC C1 0.1 F1 2.0 A L1 10 mH www.onsemi.com 17 C5 10 C2 33 R2 2.2 k C3 220 p D5 MUR160 NCP1053B (100 kHz) R1 91 k C4 50 p T1 C6 100 p C13* 1.0 Q1* R9* 22  C8 330 R7* 0.5 /1 W 2N3904 C7 330 D6 1N5822 R3 47 Figure 28. Universal Input 6/5 Watt Converter/Charger Application * Add Q1, C13, and R7−R10, and Change R4 to 2.0 k for Charger Output IC3 TL431 R8* 1.2 /1 W R10* 220 IC2 SFH 615A−4 C9 330 T1: COOPER ELECTRONIC TECHNOLOGIES PART # CTX22−15348 PRIMARY: 97 turns of #29 AWG, Pin 4 = start, Pin 5 = finish SECONDARY: 5 turns of 0.40 mm, Pins 2 and 1 = start, Pins 7 and 8 = finish GAP: Designed for Total 1.24 mH Primary Inductance CORE: TSF−7070 BOBBIN: Pins 3 and 6 Removed, EE19 D4 1N4006 D3 1N4006 D2 1N4006 D1 1N4006 R5 2.00 k C10 0.22 R4* 1.0 k R6 2.20 k L2 5 H C11 220 C12 1.0 5.25 V 1.2 A NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 Test Line Regulation Conditions Converter Results Vin = 85 − 265 VAC; Iout = 120 mA Vin = 85 − 265 VAC; Iout = 600 mA Vin = 85 − 265 VAC; Iout = 1.2 A 2 mV 1 mV 2 mV Vin = 85 − 265 VAC; Iout = 100 mA Vin = 85 − 265 VAC; Iout = 500 mA Vin = 85 − 265 VAC; Iout = 1.00 A Load Regulation Vin = 85 VAC; Iout = 120 mA − 1.2 A Vin = 110 VAC; Iout = 120 mA − 1.2 A Vin = 230 VAC; Iout = 120 mA − 1.2 A Vin = 265 VAC; Iout = 120 mA − 1.2 A 11 mV 24 mV 41 mV 12 mV 13 mV 12 mV 13 mV Vin = 85 VAC; Iout = 100 mA − 1.00 A Vin = 110 VAC; Iout = 100 mA − 1.00 A Vin = 230 VAC; Iout = 100 mA − 1.00 A Vin = 265 VAC; Iout = 100 mA − 1.00 A Output Ripple Vin = 110 VAC; Iout = 1.2 A Vin = 230 VAC; Iout = 1.2 A 58 mV 65 mV 71 mV 67 mV 86 mVp−p 127 mVp−p Vin = 110 VAC; Iout = 1.00 A Vin = 230 VAC; Iout = 1.00 A Efficiency Charger Results 80 mVp−p 155 mVp−p Vin = 110 VAC; Iout = 1.2 A Vin = 230 VAC; Iout = 1.2 A 72.4% 69.6% Vin = 110 VAC; R8 = 1.2 , Iout = 1.00 A Vin = 230 VAC; R8 = 1.2 , Iout = 1.00 A 54.6% 53.6% Vin = 110 VAC; R8 = 0 , Iout = 1.00 A Vin = 230 VAC; R8 = 0 , Iout = 1.00 A 66.1% 63.3% No Load Input Power Vin = 110 VAC; Iout = 0 A Vin = 230 VAC; Iout = 0 A 100 mW 200 mW 100 mW 200 mW Standby Output Power Vin = 110 VAC; Pin = 1 W Vin = 230 VAC; Pin = 1 W 680 mW 630 mW 640 mW 540 mW Short Circuit Load Input Power Vin = 110 VAC; Vout = 0 V (Shorted) Vin = 230 VAC; Vout = 0 V (Shorted) 400 mW 550 mW Vin = 110 VAC; R8 = 1.2 , Vout = 0 V (Shorted) Vin = 230 VAC; R8 = 1.2 , Vout = 0 V (Shorted) 750 mW 900 mW Vin = 110 VAC; R8 = 0 , Vout = 0 V (Shorted) Vin = 230 VAC; R8 = 0 , Vout = 0 V (Shorted) 700 mW 850 mW Figure 29. Converter and Charger Test Data Summary www.onsemi.com 18 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 5.224 5.23 5.22 Iout = 120 mA OUTPUT VOLTAGE (VDC) OUTPUT VOLTAGE (VDC) 5.222 5.220 Iout = 600 mA 5.218 5.216 5.214 5.212 Iout = 1.2 A 5.20 5.19 5.18 5.17 5.210 5.15 5.14 130 180 230 280 Iout = 500 mA 5.16 5.208 80 Iout = 100 mA 5.21 Iout = 1 A 80 LINE INPUT VOLTAGE (VAC) 230 280 Figure 31. Charger Line Regulation 6 6 5 5 Vin = 85 VAC OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 180 LINE INPUT VOLTAGE (VAC) Figure 30. Converter Line Regulation 4 Vin = 110 VAC 3 2 Vin = 265 VAC Vin = 230 VAC 4 3 Vin = 230 VAC 0 0.5 1 1.5 2 0 2 Vin = 265 VAC Vin = 85 VAC Vin = 110 VAC 1 1 0 130 0 LOAD CURRENT (A) 0.5 1.0 LOAD CURRENT (A) Figure 33. Charger Load Regulation Figure 32. Converter Load Regulation Ch1: Vout Ch2: Iout = 0.2 A/div (Vin = 230 VAC) Ch1: Vout Ch2: Iout = 0.2 A/div (Vin = 230 VAC) Figure 34. Converter Load Transient Response Figure 35. Charger Load Transient Response www.onsemi.com 19 1.5 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 75 Vin = 85 VAC Vin = 230 VAC Vin = 265 VAC 65 60 Vin = 110 VAC 60 55 Vin = 230 VAC Vin = 265 VAC 50 55 50 Vin = 85 VAC 65 EFFICIENCY (%) 70 EFFICIENCY (%) 70 Vin = 110 VAC 0 0.5 1.0 45 1.5 0 LOAD CURRENT (A) 0.5 1.0 LOAD CURRENT (A) Figure 36. Converter Efficiency Figure 37. Charger Efficiency Ch1: Vout Ch2: Rectified Vin (Vin = 230 VAC, Iout = 0.5 A) Ch1: Vout Ch2: Rectified Vin (Vin = 230 VAC, Iout = 0.5 A) Figure 38. Converter On/Off Line Transient Response Figure 39. Charger On/Off Line Transient Response www.onsemi.com 20 1.5 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 BOARD GRAPHICS DC Output AC Input C1 − IC2 + R5 R6 R4 C5 C12 C10 R9 + R8 L1 Q1 − L2 R7 C6 D2 R3 + D3 D5 D1 T1 R2 C9 − D6 + C2 C11 IC1 D4 − − + IC3 F1 C8 − R1 + C3 C4 + C7 − Top View 2.75″ 2.25″ NCP1050 Series Bottom View Figure 40. Printed Circuit Board and Component Layout www.onsemi.com 21 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 DEVICE ORDERING INFORMATION (Note 11) RDS(on) (W) Ipk (mA) NCP1050P44G 30 NCP1050P100G Package Shipping† 100 PDIP−8 (Pb−Free) 50 Units / Rail 30 100 PDIP−8 (Pb−Free) 50 Units / Rail NCP1050P136G 30 100 PDIP−8 (Pb−Free) 50 Units / Rail NCP1050ST44T3G 30 100 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1050ST100T3G 30 100 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1050ST136T3G 30 100 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1051P44G 30 200 PDIP−8 (Pb−Free) 50 Units / Rail NCP1051P100G 30 200 PDIP−8 (Pb−Free) 50 Units / Rail NCP1051P136G 30 200 PDIP−8 (Pb−Free) 50 Units / Rail NCP1051ST44T3G 30 200 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1051ST100T3G 30 200 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1051ST136T3G 30 200 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1052P44G 30 300 PDIP−8 (Pb−Free) 50 Units / Rail NCP1052P100G 30 300 PDIP−8 (Pb−Free) 50 Units / Rail NCP1052P136G 30 300 PDIP−8 (Pb−Free) 50 Units / Rail NCP1052ST44T3G 30 300 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1052ST100T3G 30 300 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1052ST136T3G 30 300 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1053P44G 15 400 PDIP−8 (Pb−Free) 50 Units / Rail NCP1053P100G 15 400 PDIP−8 (Pb−Free) 50 Units / Rail NCP1053P136G 15 400 PDIP−8 (Pb−Free) 50 Units / Rail NCP1053ST44T3G 15 400 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1053ST100T3G 15 400 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1053ST136T3G 15 400 SOT−223 (Pb−Free) 4000 / Tape & Reel Device †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. 11. Consult factory for additional optocoupler fail−safe latching, frequency, current limit and line input options. www.onsemi.com 22 NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055 DEVICE ORDERING INFORMATION (Note 11) RDS(on) (W) Ipk (mA) NCP1054P44G 15 NCP1054P100G Package Shipping† 530 PDIP−8 (Pb−Free) 50 Units / Rail 15 530 PDIP−8 (Pb−Free) 50 Units / Rail NCP1054P136G 15 530 PDIP−8 (Pb−Free) 50 Units / Rail NCP1054ST44T3G 15 530 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1054ST100T3G 15 530 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1054ST136T3G 15 530 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1055P44G 15 680 PDIP−8 (Pb−Free) 50 Units / Rail NCP1055P100G 15 680 PDIP−8 (Pb−Free) 50 Units / Rail NCP1055P136G 15 680 PDIP−8 (Pb−Free) 50 Units / Rail NCP1055ST44T3G 15 680 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1055ST100T3G 15 680 SOT−223 (Pb−Free) 4000 / Tape & Reel NCP1055ST136T3G 15 680 SOT−223 (Pb−Free) 4000 / Tape & Reel Device †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. 11. Consult factory for additional optocoupler fail−safe latching, frequency, current limit and line input options. www.onsemi.com 23 MECHANICAL CASE OUTLINE PACKAGE DIMENSIONS SOT−223 (TO−261) CASE 318E−04 ISSUE R DATE 02 OCT 2018 SCALE 1:1 q q DOCUMENT NUMBER: DESCRIPTION: 98ASB42680B SOT−223 (TO−261) Electronic versions are uncontrolled except when accessed directly from the Document Repository. Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red. PAGE 1 OF 2 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor 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. ON Semiconductor does not convey any license under its patent rights nor the rights of others. © Semiconductor Components Industries, LLC, 2018 www.onsemi.com SOT−223 (TO−261) CASE 318E−04 ISSUE R STYLE 1: PIN 1. 2. 3. 4. BASE COLLECTOR EMITTER COLLECTOR STYLE 2: PIN 1. 2. 3. 4. ANODE CATHODE NC CATHODE STYLE 6: PIN 1. 2. 3. 4. RETURN INPUT OUTPUT INPUT STYLE 7: PIN 1. 2. 3. 4. ANODE 1 CATHODE ANODE 2 CATHODE STYLE 11: PIN 1. MT 1 2. MT 2 3. GATE 4. MT 2 STYLE 3: PIN 1. 2. 3. 4. GATE DRAIN SOURCE DRAIN STYLE 8: STYLE 12: PIN 1. INPUT 2. OUTPUT 3. NC 4. OUTPUT CANCELLED DATE 02 OCT 2018 STYLE 4: PIN 1. 2. 3. 4. SOURCE DRAIN GATE DRAIN STYLE 5: PIN 1. 2. 3. 4. STYLE 9: PIN 1. 2. 3. 4. INPUT GROUND LOGIC GROUND STYLE 10: PIN 1. CATHODE 2. ANODE 3. GATE 4. ANODE DRAIN GATE SOURCE GATE STYLE 13: PIN 1. GATE 2. COLLECTOR 3. EMITTER 4. COLLECTOR GENERIC MARKING DIAGRAM* AYW XXXXXG G 1 A = Assembly Location Y = Year W = Work Week XXXXX = Specific Device Code G = Pb−Free Package (Note: Microdot may be in either location) *This information is generic. Please refer to device data sheet for actual part marking. Pb−Free indicator, “G” or microdot “G”, may or may not be present. Some products may not follow the Generic Marking. DOCUMENT NUMBER: DESCRIPTION: 98ASB42680B SOT−223 (TO−261) Electronic versions are uncontrolled except when accessed directly from the Document Repository. Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red. PAGE 2 OF 2 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor 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. ON Semiconductor does not convey any license under its patent rights nor the rights of others. © Semiconductor Components Industries, LLC, 2018 www.onsemi.com MECHANICAL CASE OUTLINE PACKAGE DIMENSIONS PDIP−7 (PDIP−8 LESS PIN 6) CASE 626A ISSUE C DATE 22 APR 2015 SCALE 1:1 D A E H 8 5 1 4 E1 NOTE 8 b2 c B END VIEW TOP VIEW WITH LEADS CONSTRAINED NOTE 5 A2 A e/2 NOTE 3 L SEATING PLANE A1 C D1 M e 8X SIDE VIEW b 0.010 eB END VIEW M C A M B M NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: INCHES. 3. DIMENSIONS A, A1 AND L ARE MEASURED WITH THE PACKAGE SEATED IN JEDEC SEATING PLANE GAUGE GS−3. 4. DIMENSIONS D, D1 AND E1 DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS ARE NOT TO EXCEED 0.10 INCH. 5. DIMENSION E IS MEASURED AT A POINT 0.015 BELOW DATUM PLANE H WITH THE LEADS CONSTRAINED PERPENDICULAR TO DATUM C. 6. DIMENSION eB IS MEASURED AT THE LEAD TIPS WITH THE LEADS UNCONSTRAINED. 7. DATUM PLANE H IS COINCIDENT WITH THE BOTTOM OF THE LEADS, WHERE THE LEADS EXIT THE BODY. 8. PACKAGE CONTOUR IS OPTIONAL (ROUNDED OR SQUARE CORNERS). DIM A A1 A2 b b2 C D D1 E E1 e eB L M INCHES MIN MAX −−−− 0.210 0.015 −−−− 0.115 0.195 0.014 0.022 0.060 TYP 0.008 0.014 0.355 0.400 0.005 −−−− 0.300 0.325 0.240 0.280 0.100 BSC −−−− 0.430 0.115 0.150 −−−− 10 ° MILLIMETERS MIN MAX −−− 5.33 0.38 −−− 2.92 4.95 0.35 0.56 1.52 TYP 0.20 0.36 9.02 10.16 0.13 −−− 7.62 8.26 6.10 7.11 2.54 BSC −−− 10.92 2.92 3.81 −−− 10 ° NOTE 6 GENERIC MARKING DIAGRAM* XXXXXXXXX AWL YYWWG XXXX A WL YY WW G = Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package *This information is generic. Please refer to device data sheet for actual part marking. Pb−Free indicator, “G” or microdot “ G”, may or may not be present. DOCUMENT NUMBER: DESCRIPTION: 98AON11774D Electronic versions are uncontrolled except when accessed directly from the Document Repository. Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red. PDIP−7 (PDIP−8 LESS PIN 6) PAGE 1 OF 1 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor 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. ON Semiconductor does not convey any license under its patent rights nor the rights of others. © Semiconductor Components Industries, LLC, 2019 www.onsemi.com ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. 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NCP1050ST100T3G
物料型号: NCP1050系列(包括NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055)

器件简介: - 这些是单片高电压门控振荡器功率开关调节器,用于满足低待机功率要求的最终产品设备。 - 设计用于直接从整流交流线路源操作,适用于办公自动化、消费类和工业产品的简单经济的电源系统解决方案。

引脚分配: - 8引脚双列直插式(PDIP-8)和4引脚小外形封装(SOT-223)。 - 引脚1: VCC(正电源电压输入) - 引脚2: 控制输入 - 引脚3、7-8: 地 - 引脚4: 无连接 - 引脚5: 功率开关漏极

参数特性: - 具有活动启动调节电路,消除了转换器变压器上辅助偏置绕组的需要。 - 具有故障检测器和可编程定时器,用于转换器过载保护。 - 独特的门控振荡器配置,具有极快的环路响应和双脉冲抑制。 - 电源开关电流限制、输入欠压锁定和滞后、热关闭以及自动重启故障检测。

功能详解: - 固定频率、占空比控制的振荡器,用于脉冲宽度调制功率开关电路。 - 控制输入引脚具有并行源跟随器输入阶段和电压钳位。 - 快速瞬态响应能力,可在任何时间点开启或关闭功率开关电路。

应用信息: - 适用于AC-DC转换器、壁式适配器、便携式电子充电器和低功率待机及保持活动电源。

封装信息: - 经济的8引脚双列直插式(PDIP-8)和4引脚小外形封装(SOT-223)。
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