(China (Mainland))
Product Summary
TL594CN is a pulse-width-modulation control circuit which provides the systems engineer with the flexibility to tailor the power-supply control circuits to a specific application. The TL594CN contains two error amplifiers, an internal oscillator (externally adjustable), a dead-time control (DTC) comparator, a pulse-steering flip-flop, a 5-V precision reference,undervoltage lockout control, and output control circuits. Two totem-pole outputs provide exceptional rise- and fall-time performance for power FET control. The outputs share a common source supply and common power ground terminals, which allow system designers to eliminate errors caused by high current-induced voltage drops and common-mode noise.The error amplifier has a common-mode voltage range of 0 V to VCC-2 V. The DTC comparator has a fixed offset that prevents overlap of the outputs during push-pull operation. A synchronous multiple supply operation can be achieved by connecting RT to the reference output and providing a sawtooth input to CT.
Parametrics
TL594CN absolute maximum ratings: (1)Supply voltage, VCC(see Note 1) 41 V; (2)Amplifier input voltage, VI: VCC + 0.3 V; (3)Collector voltage : 41 V; (4)Output current (each output), sink or source, IO: 250 mA; (5)Package thermal impedance, θJA(see Notes 2 and 3): 67°C/W; (6)Operating virtual junction temperature, TJ: 150°C; (7)Storage temperature range, Tstg:-65°C to 150 °C.
Features
TL594CN features: (1)Complete PWM Power-Control Function; (2)Totem-Pole Outputs for 200-mA Sink or Source Current; (3)Output Control Selects Parallel or Push-Pull Operation; (4)Internal Circuitry Prohibits Double Pulse at Either Output; (5)Variable Dead-Time Provides Control Over Total Range; (6)Internal Regulator Provides a Stable 5-V Reference Supply, Trimmed to 1% Tolerance; (7)On-Board Output Current-Limiting Protection; (8)Undervoltage Lockout for Low-VCC Conditions; (9)Separate Power and Signal Grounds.
Diagrams
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 TL594CN |
Texas Instruments |
Voltage Mode PWM Controllers PWM Controller |
Data Sheet |
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TL594CNSRG4 |
Texas Instruments |
Voltage Mode PWM Controllers PWM Control Circuit |
Data Sheet |
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TL594CNSRE4 |
Texas Instruments |
Voltage Mode PWM Controllers Control Circuit |
Data Sheet |
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TL594CNG |
ON Semiconductor |
Voltage Mode PWM Controllers 40kHz 200mA PWM w/48% Duty Cycle Max |
Data Sheet |
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TL594CNE4 |
Texas Instruments |
Voltage Mode PWM Controllers Control Circuit |
Data Sheet |
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TL594CNSR |
Texas Instruments |
Voltage Mode PWM Controllers Control Circuit |
Data Sheet |
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