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TPS61004DGS Datasheet(PDF) 1 Page - Texas Instruments |
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TPS61004DGS Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page TPS61000, TPS61001, TPS61002, TPS61003, TPS61004, TPS61005, TPS61006 SINGLE-CELL BOOST CONVERTER WITH START-UP INTO FULL LOAD SLVS279A – MARCH 2000 – REVISED MAY 2000 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Start Up Into a Full Load With Supply Voltages as Low as 0.9 V Over Full Temperature Range D Minimum 100-mA Output Current From 0.8 V Supply Voltage D High Power Conversion Efficiency, up to 90% D Power-Save Mode for Improved Efficiency at Low Output Currents D Device Quiescent Current Less Than 50 µA D Added System Security With Integrated Low-Battery Comparator D Low-EMI Converter (Integrated Antiringing Switch Across Inductor) D Micro-Size 10-Pin MSOP Package D Evaluation Modules Available (TPS6100xEVM–156) D Applications Include: – Single- and Dual-Cell Battery Operated Products – MP3-Players and Wireless Headsets – Pagers and Cordless Phones – Portable Medical Diagnostic Equipment – Remote Controls · description The TPS6100x devices are boost converters intended for systems that are typically operated from a single- or dual-cell nickel-cadmium (NiCd), nickel-metal hydride (NiMH), or alkaline battery. The converter output voltage can be adjusted from 1.5 V to a maximum of 3.3 V and provides a minimum output current of 100 mA. The converter starts up into a full load with a supply voltage of 0.9 V and stays in operation with supply voltages as low as 0.8 V. The converter is based on a fixed-frequency, current-mode pulse-width-modulation (PWM) controller that goes into power-save mode at low load currents. The current through the switch is limited to a maximum of 1100 mA, depending on the output voltage. The current sense is integrated to further minimize external component count. The converter can be disabled to minimize battery drain when the system is put into standby. A low-EMI mode is implemented to reduce interference and radiated electromagnetic energy that is caused by the ringing of the inductor when the inductor discharge-current decreases to zero. The device is packaged in the space saving 10-pin MSOP package. 5 6 TPS61006 9 8 1 10 3 2 7 4 SW VBAT LBI NC EN VOUT LBO FB COMP GND Low Battery Warning R4 10 k Ω R3 ON OFF R2 R1 Ci 10 µF L1 D1 VO = 3.3 V C1 100 pF C2 33 nF Co 22 µF 33 µH 2 02 4 6 8 10 12 3 TPS61006 START UP TIMING INTO 33 Ω LOAD 14 16 18 20 1 0 VOUT EN IOUT 80 60 20 100 120 140 0 40 time – ms TYPICAL APPLICATION CIRCUIT FOR FIXED OUTPUT VOLTAGE OPTION Copyright © 2000, Texas Instruments Incorporated 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. 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. |
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