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TPS65101RGE Datasheet(PDF) 1 Page - Texas Instruments |
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TPS65101RGE Datasheet(HTML) 1 Page - Texas Instruments |
1 / 32 page www.ti.com FEATURES DESCRIPTION APPLICATIONS Vin V 1 U o p to 15 V / 400 mA V 3 U o p to 30 V / 20 mA V 2 U o p to 12 V / 20 mA V 4 3.3 o V Vcom Boost Converter Positive Charge Pump Negative Charge Pump Vcom Buffer Linear Regulator Controller TPS6510x 2.7 V to 5.8 V TPS65100, TPS65101 TPS65105 SLVS496C – SEPTEMBER 2003 – REVISED APRIL 2006 TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND VCOM BUFFER • 2.7-V to 5.8-V Input Voltage Range The TPS6510x series offers a compact and small power supply solution that provides all three voltages • 1.6-MHz Fixed Switching Frequency required by thin film transistor (TFT) LCD displays. • 3 Independent Adjustable Outputs The auxiliary linear regulator controller can be used • Main Output of up to 15 V With < 1% Output to generate a 3.3-V logic power rail for systems Voltage Accuracy powered by a 5-V supply rail only. • Virtual Sychronous Converter Technology The main output, VO1, is a 1.6-MHz, fixed-frequency • Negative Regulated Charge Pump Driver VO2 PWM boost converter providing the source drive voltage for the LCD display. The device is available • Positive Charge Pump Converter VO3 in two versions with different internal switch current • Integrated VCOM Buffer limits to allow the use of a smaller external inductor • Auxiliary 3.3-V Linear Regulator Controller when lower output power is required. The TPS65100/01 has a typical switch current limit of 2.3 • Internal Soft Start A, and the TPS65105 has a typical switch current • Internal Power-On Sequencing limit of 1.37 A. A fully integrated adjustable charge • Fault Detection of all Outputs (TPS65100/05) pump doubler/tripler provides the positive LCD gate drive voltage. An externally adjustable negative • No Fault Detection (TPS65101) charge pump provides the negative gate drive • Thermal Shutdown voltage. Due to the high 1.6-MHz switching • Available in TSSOP-24 and QFN-24 frequency of the charge pumps, inexpensive and PowerPAD™ Packages small 220-nF capacitors can be used. The TPS6510x series has an integrated VCOM buffer to power the LCD backplane. For LCD panels • TFT LCD Displays for Notebooks powered by 5 V only, the TPS6510x series has a • TFT LCD Displays for Monitors linear regulator controller using an external transistor to provide a regulated 3.3-V output for the digital • Portable DVD Players circuits. For maximum safety, the TPS65100/05 goes • Tablet PCs into shutdown as soon as one of the outputs is out of • Car Navigation Systems regulation. The device can be enabled again by • Industrial Displays toggling the input or the enable (EN) pin to GND. The TPS65101 does not enter shutdown when one of the outputs is below its power good threshold. 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. PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2003–2006, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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