TOP414 Power Integrations Inc., TOP414 Datasheet
TOP414
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TOP414 Summary of contents
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... TOP412G VOLTAGE 18 VDC VDC VDC VDC VDC 72 VDC VDC 0.4 3. Soldered to 1 sq. inch oz. copper clad (610 gm/mm ® PI-2371-120198 1-4 TOP414G The continuous April 1999 ...
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TOP412/414 V C 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 ...
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TOPSwitch Family Functional Description TOPSwitch is a self biased and protected linear control current- to-duty cycle converter with an open drain output. High efficiency is achieved through the use of CMOS and integration of the maximum number of functions possible. ...
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TOP412/414 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 ...
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DRAIN 0 V OUT 0 I OUT Figure 6. Typical Waveforms for (1) Normal Operation, (2) Auto-restart, (3) Latching Shutdown, and (4) Power Down Reset. CONTROL ...
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... TOP412/414 General Circuit Operation Figure 7 shows a typical DC-DC converter application using the TOP414G. This supply delivers and works over a wide input range from 36-72 VDC. The power supply operates at an ambient temperature of 0- order to achieve the highest possible efficiency and smallest ...
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... Use single point grounding techniques at the SOURCE pin as shown in Figure 8. Use a ceramic high frequency decoupling capacitor to bypass noise transients which might appear on the CONTROL pin. The TOP412 and TOP414 have an over current latching shutdown feature. Failure to use a high frequency decoupling capacitor may allow incidental noise to accidentally trigger this feature ...
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... SOURCE = -40 to 125 mA 0.5 mA, See Figure 9 C CD1 TOP412 mA, C See Figure 9 TOP414 mA See Figure 4 See Note A See Figure mA See Figure 10 (1) (2) ................ -40 to 150 C (3) ................................................ 260 C ...
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... See Note A S1 open S1 open S1 open S1 open S1 open TOP412 di/dt = 400 mA TOP414 di/dt = 600 mA See Figure 10 S2 open TOP412/414 Min Typ Max Units -2.4 -1 ...
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... Device in Latched Shutdown mA 500 Measured With Figure 7 Schematic Measured With Figure 7 Schematic See Note TOP412 Output MOSFET Enabled TOP414 Output MOSFET Disabled Min Typ Max Units 2.6 3.0 4.2 5.0 1.7 2.0 2.8 3.3 500 A V 350 ns 100 ns 50 ...
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... ON time is the difference between the input voltage and the drain voltage (V ). DS(ON) For example, if the input voltage is 16 VDC and a TOP414 (2.95 A minimum current limit) is used at a primary peak current of 1A. Then the (V primary Conditions (Unless Otherwise Specified) ...
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TOP412/414 90% DRAIN VOLTAGE 10 Figure 9. TOPSwitch Duty Cycle Measurement. D CONTROL TOPSwitch S NOTES: 1. This test circuit is not applicable for current limit or output characteristic measurements. 2. For P ...
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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 11 is suggested for laboratory testing of TOPSwitch. When the DRAIN ...
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... Drain Voltage ( 4/99 Scaling Factors: TOP414 1.00 TOP412 0. DRAIN CAPACITANCE POWER 100 Scaling Factors: TOP414 1.00 TOP412 0. 160 240 DRAIN Voltage (V) C OSS vs. DRAIN VOLTAGE 1000 Scaling Factors: TOP414 1.00 TOP412 0.67 100 160 240 DRAIN Voltage (V) 320 320 ...
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D S .004 (.10 - G08A J2 .010 (.25 SMD-8 Heat Sink is 2 oz. Copper As Big As Possible .046 .060 .060 .046 ...
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TOP412/414 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 ...