TOP200-4 POWERINT [Power Integrations, Inc.], TOP200-4 Datasheet
TOP200-4
Related parts for TOP200-4
TOP200-4 Summary of contents
Page 1
... TOP200-4/14 TOPSwitch Family Three-terminal Off-line PWM Switch Product Highlights Low Cost Replacement for Discrete Switchers • fewer components - cuts cost, increases reliability • Source-connected tab and Controlled MOSFET turn-on reduce EMI and EMI filter costs • Allows for a 50% smaller and lighter solution • ...
Page 2
... TOP200-4/ CONTROL Z C SHUNT REGULATOR/ ERROR AMPLIFIER - + 5 OSCILLATOR D MAX CLOCK SAW R E Figure 2. Functional Block Diagram. Pin Functional Description DRAIN Pin: Output MOSFET drain connection. Provides internal bias current during start-up operation via an internal switched high- voltage current source. Internal current sense point. ...
Page 3
... Charging C T 5 Off DRAIN the total external capacitance T connected to the CONTROL pin Figure 5. Start-up Waveforms for (a) Normal Operation and (b) Auto-restart. TOP200-4/ Slope = PWM Gain -16%/mA 6 (mA) Switching (a) I CD2 Discharging CD1 Discharging Cycles 95% 5% Off ...
Page 4
... TOP200-4/14 TOPSwitch Family Functional Description (cont.) The first time V reaches the upper C threshold, the high-voltage current source is turned off and the PWM modulator and output transistor are activated, as shown in Figure 5(a). During normal operation (when the output voltage is regulated) feedback control current supplies the V ...
Page 5
... CONTROL pin below the power-up reset threshold resets the latch and allows TOPSwitch to resume normal power supply operation regulated in hysteretic mode when C the power supply is latched off. TOP200-4/14 V C(reset PI-1119-110194 High-voltage Bias Current Source This current source biases TOPSwitch ...
Page 6
... TOP200-4/14 General Circuit Operation Primary Feedback Regulation The circuit shown in Figure simple bias supply using the TOP200. This universal input flyback power supply employs primary-side regulation from a transformer bias winding. This approach is best for low-cost applications requiring isolation and operation within a narrow range of load variation ...
Page 7
... The circuit shown in Figure highly accurate secondary- regulated flyback power supply that will operate from 85 to 265 VAC input voltage. A TL431 shunt regulator directly senses and accurately regulates the output voltage. The effective output TOP200-4/ 120 F ...
Page 8
... TOP200-4/14 BR1 400 CIRCUIT PERFORMANCE: Load Regulation - ±0.2% C6 0.1 F Meets CISPR-22 Class Figure 9. Schematic Diagram Universal Input Power Supply Utilizing the TOP204 and Accurate Optocoupler Feedback. EMI AC FILTER IN C1 220 nF 400 V BR1 400 V TYPICAL PERFORMANCE: Power Factor = 0 ...
Page 9
... Drain Voltage Characteristic curve). Kelvin-connected bypass capacitor and/or compensation network PC Board Bias/Feedback Input Bias/Feedback Return TOP200-4/14 When power is first applied, C3 charges to typically 5.7 volts before TOPSwitch starts. C3 then provides TOPSwitch bias current until the output voltage becomes regulated. When the output voltage becomes regulated, ...
Page 10
... TOP200-4/14 DRAIN Voltage ............................................ -0.3 to 700 V CONTROL Voltage ..................................... - 0 Storage Temperature ...................................... -65 to 125 C (2) Operating Junction Temperature ................. -40 to 150 C (3) Lead Temperature ................................................. 260 C Parameter Symbol CONTROL FUNCTIONS Output f Frequency OSC Maximum DC Duty Cycle MAX Minimum DC Duty Cycle MIN PWM Gain PWM Gain ...
Page 11
... TOP202 di/dt = 250 mA 25˚C j TOP203 di/dt = 330 mA 25˚C j TOP214 di/dt = 420 mA 25˚C j TOP204 di/dt = 500 mA 25˚ See Figure 13 S2 open TOP200-4/14 Min Typ Max Units 4.7 V 0.6 1 1.2 Hz 0.415 0.585 0.830 1.17 1.25 1.75 A 1.50 2.10 1.88 2.63 2.25 3.15 150 ...
Page 12
... TOP200-4/14 Parameter Symbol OUTPUT ON-State R Resistance DS(ON) OFF-State I Current DSS Breakdown BV Voltage DSS Rise t Time r Fall t Time f SUPPLY DRAIN Supply Voltage Shunt Regulator V Voltage C(SHUNT) Shunt Regulator Temperature Drift I CD1 CONTROL Supply/ Discharge Current I CD2 12 D 7/96 Conditions (Unless Otherwise Specified) See Figure 14 ...
Page 13
... DRAIN voltage for low voltage operation C TYPICAL CONTROL PIN I-V CHARACTERISTIC 120 100 PI-1215-091794 Figure 13. TOPSwitch CONTROL Pin I-V Characteristic TOP200-4/14 Latched Shutdown Trigger Current (45 mA) Dynamic 1 = Impedance Slope CONTROL Pin Voltage (V) 470 470 ...
Page 14
... TOP200-4/14 BENCH TEST PRECAUTIONS FOR EVALUATION OF ELECTRICAL CHARACTERISTICS The following precautions should be followed when testing TOPSwitch by itself outside of a power supply. The schematic shown in Figure 14 is suggested for laboratory testing of TOPSwitch. When the DRAIN supply is turned on, the part will be in the auto-restart mode. ...
Page 15
... DRAIN CAPACITANCE POWER 500 Scaling Factors: TOP204 1.00 400 TOP214 0.83 TOP203 0.67 TOP202 0.50 TOP201 0.33 300 TOP200 0.17 200 100 0 0 200 400 DRAIN Voltage (V) TOP200-4/14 C OSS vs. DRAIN VOLTAGE 1000 Scaling Factors: TOP204 1.00 TOP214 0.83 TOP203 0.67 TOP202 0.50 TOP201 0.33 TOP200 0.17 100 10 0 200 400 DRAIN Voltage (V) 600 600 ...
Page 16
... TOP200-4/14 Y03A mm DIM inches .460-.480 11.68-12. .400-.415 10.16-10.54 C .236-.260 5.99-6.60 6.10 - REF. D .240 - REF. 13.21-14.22 E .520-.560 .028-.038 .71-. .045-.055 1.14-1.40 H .090-.110 2.29-2.79 4.19-4.70 J .165-.185 1.14-1.40 K .045-.055 2.41-2.92 L .095-.115 .015-.020 .38-. .705-.715 17.91-18.16 O .146-.156 3.71-3.96 2.62-2.87 P .103-.113 * LEADS AND TAB ARE SOLDER PLATED Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability ...