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TL5002CD Datasheet(PDF) 1 Page - Texas Instruments |
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TL5002CD Datasheet(HTML) 1 Page - Texas Instruments |
1 / 18 page TL5002 PULSEWIDTHMODULATION CONTROL CIRCUIT SLVS304A − SEPTEMBER 2000 − REVISED AUGUST 2002 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Complete PWM Power Control D 3.6-V to 40-V Operation D Internal Undervoltage-Lockout Circuit D Oscillator Frequency...20 kHz to 500 kHz D Variable Dead Time Provides Control Over Total Range D Ideal Controller for DDR Memory Application D Uncommitted Error Amplifier Inputs description The TL5002 incorporates on a single monolithic chip all the functions required for a pulse-width-modulation (PWM) control circuit. Designed primarily for power-supply control, the TL5002 contains an error amplifier, a regulator, an oscillator, a PWM comparator with a dead-time-control input, undervoltage lockout (UVLO), and an open-collector output transistor. The error-amplifier input common-mode voltage ranges from 0.9 V to 1.5 V. Dead-time control (DTC) can be set to provide 0% to 100% dead time by connecting an external resistor between DTC and GND. The oscillator frequency is set by terminating RT with an external resistor to GND. During low VCC conditions, the UVLO circuit turns the output off until VCC recovers to its normal operating range. The TL5002 is characterized for operation from − 40 °C to 85°C. AVAILABLE OPTIONS TA SMALL OUTLINE (D) −20 °C to 85°C TL5002CD −40 °C to 85°C TL5002ID The D package is available taped and reeled. Add the suffix R to the device type (e.g., TL5002CDR). functional block diagram GND 8 OUT COMP INV 3 4 − + DTC RT 6 7 PWM/DTC Comparator OSC Amplifier Error UVLO VCC 2 1 Reference Voltage IDT 2.5 V 5 NI Copyright 2002, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 8 7 6 5 OUT VCC COMP INV GND RT DTC NI D PACKAGE (TOP VIEW) |
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