top209 Power Integrations, Inc., top209 Datasheet
top209
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top209 Summary of contents
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... TOPSwitch integrated circuit can reduce total cost, component count, size, weight and at the same time increase efficiency and system reliability. The TOP209/210 are intended for 100/110/230 VAC off-line Power Supply applications in the universal) range. ...
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... TOP209/210 V C CONTROL Z C SHUNT REGULATOR/ ERROR AMPLIFIER - + I FB OSCILLATOR D MAX CLOCK SAW R E Figure 2. Functional Block Diagram. Pin Functional Description 2 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. ...
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... 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. TOP209/210 I B Slope = PWM Gain -16%/mA 6 (mA) Switching (a) I CD2 Discharging CD1 Discharging Cycles 95% 5% Off ...
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... TOP209/210 TOPSwitch Family Functional Description (cont.) The first time V reaches the upper threshold, the high-voltage C 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 regulator keeps V at typically 5 ...
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... The current source is switched on and off with an effective duty cycle of approximately 35%. This duty cycle is determined by the ratio of CONTROL pin charge (I ) and discharge currents (I C source is turned off during normal operation when the output MOSFET is switching. TOP209/210 8 1 • • • • • • 1 ...
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... TOP209/210 General Circuit Description Figure 7 shows a low-cost, DC input, flyback switching power supply using the TOP210 integrated circuit. This power supply operates from a DC voltage derived from rectified and filtered AC mains voltage 265 VAC. The 5 V output is indirectly sensed via the primary bias winding. The ...
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... C5 filters internal MOSFET gate drive charge current spikes on the CONTROL pin, determines the auto- restart frequency, and together with R1, compensates the control loop. TOP209/210 1 T1 T1RD2 D2 MBR360 ...
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... DRAIN voltage is applied. Bias/Feedback Return Bias/Feedback Input Bypass Capacitor 2 Figure 9. Recommended PC Layout for the TOP209/210 8/97 CONTROL pin currents during auto-restart operation are much lower at low input voltages (< which increases the auto- restart cycle period (see the I curve). ...
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... See Figure 4 See Note A See Figure mA See Figure See Note A S1 open TOP209/210 (1) (2) ................ -40 to 150 C (3) ................................................ 260 C ) ................................... 100 C ..................................... 40 C/W JC Units Min Typ Max kHz 90 100 110 % ...
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... open S1 open S1 open S1 open I di/ mA LIMIT LEB ILD open C(RESET) Min Typ Max 4.4 4.7 5.0 0.6 1 1.2 TOP209 0.150 0.230 TOP210 0.230 0.300 150 100 125 145 30 2.0 3.3 4.2 Units ...
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... See Note 560 125 See Note 100 Measured in a Typical Flyback Converter Application See Note Output MOSFET Enabled Output MOSFET Disabled TOP209/210 Min Typ Max Units 31.2 36.0 51.4 59.4 250 A V 700 100 5.5 5 ...
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... TOP209/210 NOTES: (continued) i. The 470 5 W load resistor at the DRAIN pin should be shorted. S1 & S2 should stay closed. ii. The 40 V output supply should be replaced with a curve tracer capable of forcing 700 V. iii. The curve tracer should initially be set The 0-50 V variable supply should be adjusted through a voltage sequence ...
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... DRAIN voltage waveforms are to be observed. The 12.5% chance of being in the correct state is due to the 8:1 counter. FREQUENCY vs. TEMPERATURE 1.2 1.0 0.8 0.6 0.4 0.2 0 -50 - 100 125 150 Junction Temperature ( C) I vs. DRAIN VOLTAGE 1.6 1.2 0.8 0 DRAIN Voltage (V) TOP209/210 power supply C 80 100 A 13 8/97 ...
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... TOP209/210 Typical Performance Characteristics (cont.) OUTPUT CHARACTERISTIC 300 TCASE=25 C 250 TCASE=100 C 200 150 100 DRAIN Voltage ( 8/ DRAIN CAPACITANCE POWER 200 400 DRAIN Voltage (V) C OSS vs. DRAIN VOLTAGE 100 200 400 DRAIN Voltage (V) ...
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... SMD-8 Heat Sink is 2 oz. Copper As Big As Possible .046 .060 .060 .046 Pin 1 .086 .186 -D- .286 Solder Pad Dimensions -F- .004 (.10 TOP209/210 - DIM inches mm A 0.370-0.385 9.40-9.78 B 0.245-0.255 6.22-6.48 C 0.125-0.135 3.18-3.43 G 0.004-0.012 0.10-0.30 .420 H ...
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... TOP209/210 For the latest updates, visit our Web site: www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein, nor does it convey any license under its patent rights or the rights of others ...