TL594 Motorola, TL594 Datasheet
TL594
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TL594 Summary of contents
Page 1
... Precision Switchmode Pulse Width Modulation Control Circuit The TL594 is a fixed frequency, pulse width modulation control circuit designed primarily for Switchmode power supply control. 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 ...
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... Power Supply Rejection Ratio ( 2 2 Output Sink Current (V O (Pin 3) = 0.7 V) Output Source Current (V O (Pin 3) = 3.5 V) NOTE: 2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. 2 TL594 Symbol Min Typ ...
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... Standby Supply Current (Pin ref , All other inputs and outputs open Average Supply Current (V Pin See Figure 11) * Standard deviation is a measure of the statistical distribution about the mean as derived from the formula, MOTOROLA ANALOG IC DEVICE DATA TL594 Symbol Min Typ V TH – 3.6 I I– ...
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... Feedback PWM 1 Comparator Input Capacitor C T Feedback/PWM Comp. Deadtime Control Flip–Flop Clock Input Flip–Flop Q Flip–Flop Q Output Q1 Emitter Output Q2 Emitter Output Control 4 TL594 Figure 1. Representative Block Diagram Output Control Flip– Deadtime Flop Comparator Ck Q – + – – + PWM + 4 ...
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... The output frequency will now be equal to that of the oscillator. The TL594 has an internal 5.0 V reference capable of sourcing load current for external bias circuits. The reference has an internal accuracy of typical thermal drift of less than 50 mV over an operating temperature range ...
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... I E, EMITTER CURRENT (mA) Figure 9. Standby Supply Current versus Supply Voltage 10 9.8 8.0 7.0 6.0 5.0 4.0 3.0 2 SUPPLY VOLTAGE (V) 6 TL594 Figure 6. Percent Duty Cycle versus 100 k 500 DEADTIME CONTROL VOLTAGE (IV) Figure 8. Common–Emitter Configuration Output Saturation Voltage versus 2.0 1.8 1.6 1.4 1.2 1.0 ...
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... C Each C L Output Q 15pF Transistor E 90 MOTOROLA ANALOG IC DEVICE DATA TL594 Figure 12. Deadtime and Feedback Control Circuit Test Inputs Feedback Terminal (Pin 3) 50k Figure 14. Emitter–Follower Configuration Test Circuit and Waveform V C Each Output Transistor 10% 10% ...
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... Max Time, each output 45 – Figure 18. Output Connections for Single–Ended and Push–Pull Configurations Output Control Single–Ended 0 TL594 Output 2 ref Output 1 ...
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... Load Regulation 1 1.0 A Output Ripple 1.0 A Short Circuit Current 0.1 Efficiency 1.0 A MOTOROLA ANALOG IC DEVICE DATA TL594 Figure 20. Operation with V in > Using > 40V Master Slave (Additional Circuits ...
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... Figure 22. Pulse Width Modulated Step–Down Converter + 10V to 40V TL594 50V D.T. O.C. Gnd 0.001 47k Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency 10 TL594 Tip 32A 150 47k 0 1. Comp 2 – 5. ref 15 – 5. ...
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... SEATING PLANE 0.25 (0.010 –A– 0.25 (0.010) MOTOROLA ANALOG IC DEVICE DATA TL594 OUTLINE DIMENSIONS D SUFFIX PLASTIC PACKAGE CASE 751B–05 (SO–16) ISSUE 0.25 (0.010 SUFFIX PLASTIC PACKAGE CASE 648– ...
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... JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 *TL594/D* MOTOROLA ANALOG IC DEVICE DATA TL594/D ...