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BQ24751ATIN/a364avaiMulti-Cell Synchronous Switch-mode Charger with System Power Selector with Low Iq 28-VQFN -40 to 125
BQ24751ARHDRTIN/a9000avaiMulti-Cell Synchronous Switch-mode Charger with System Power Selector with Low Iq 28-VQFN -40 to 125
BQ24751ARHDTBB/TIN/a19691avaiMulti-Cell Synchronous Switch-mode Charger with System Power Selector with Low Iq 28-VQFN -40 to 125


BQ24751ARHDT ,Multi-Cell Synchronous Switch-mode Charger with System Power Selector with Low Iq 28-VQFN -40 to 125...... SLUS756C–SEPTEMBER 2007–REVISED MARCH 2009ADAPTER+SYSTEMR10 C6 C7RACP P0.010Ω2Ω 10µF 10µFADA ..
BQ24751BRHDR ,Multi-Cell Synchronous Switch-mode Charger in 5x5 QFN 28-VQFN -40 to 125FEATURES – < 10 μA Off-State Battery Discharge Current2• NMOS-NMOS Synchronous Buck Converter – < 1 ..
BQ24751RHDR ,Multi-Cell Synchronous Switch-mode Charger with System Power Selector 28-VQFN -40 to 125features reducebattery charge current when the input power limit is reached to avoid overloading th ..
BQ24751RHDT ,Multi-Cell Synchronous Switch-mode Charger with System Power Selector 28-VQFN -40 to 125........ SLUS734D–DECEMBER 2006–REVISED MARCH 2009ADAPTER+ SYSTEMR10 C6 C7RACP P0.010Ω2Ω 10µF 10µFA ..
BQ24753ARHDR ,Host-Controlled Li-Ion and Li-Polymer Battery Charger with Low Iq and System Power Selector 28-VQFN -40 to 85Features 2 Applications1• NMOS-NMOS Synchronous Buck Converter with • Notebook, Netbook and Ultra-M ..
BQ24753ARHDT ,Host-Controlled Li-Ion and Li-Polymer Battery Charger with Low Iq and System Power Selector 28-VQFN -40 to 85 SLUS920A–JULY 2009–REVISED JULY 20155 Description (continued)The bq24753A controls external switch ..
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BUP200 ,IGBT (Low forward voltage drop High switching speed Low tail current Latch-up free Avalanche rated)BUP 200IGBTPreliminary data• Low forward voltage drop• High switching speed• Low tail current • Lat ..
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BQ24751A-BQ24751ARHDR-BQ24751ARHDT
Multi-Cell Synchronous Switch-mode Charger with System Power Selector with Low Iq 28-VQFN -40 to 125
bq24751A www.ti.com............................................................................................................................................. SLUS756C–SEPTEMBER 2007–REVISED MARCH 2009 Host-controlled Multi-Chemistry Battery Charger With System Power Selector, AC Over-Power Protection, Programmable OVP and Low I q 1 FEATURES • Energy Star Low I q • NMOS-NMOS Synchronous Buck Converter – < 10-μA Off-State Battery Discharge Current with 300 kHz Frequency and >95% Efficiency – < 1.5-mA Off-State Input Quiescent Current • 30-ns Minimum Driver Dead-time and 99.5% Maximum Effective Duty Cycle APPLICATIONS • Notebook and Ultra-Mobile Computers • High-Accuracy Voltage and Current Regulation • Portable Data Capture Terminals – ±0.5% Charge Voltage Accuracy • Portable Printers – ±3% Charge Current Accuracy • Medical Diagnostics Equipment – ±3% Adapter Current Accuracy • Battery Bay Chargers – ±2% Input Current Sense Amp Accuracy • Battery Back-up Systems • Integration – Automatic System Power Selection From DESCRIPTION AC/DC Adapter or Battery The bq24751A is a high-efficiency, synchronous – Internal Loop Compensation battery charger with integrated compensation and – Internal Soft Start system power selector logic, offering low component count for space-constrained multi-chemistry battery • Safety charging applications. Ratiometric charge current and – Programmable Input Overvoltage voltage programming allows very high regulation Protection (OVP) accuracies, and can be either hardwired with resistors – Dynamic Power Management (DPM) with or programmed by the system power-management Status Indicator microcontroller using a DAC or GPIOs. – Programmable Inrush Adapter Power The bq24751A charges two, three, or four series Li+ (ACOP) and Overcurrent (ACOC) Limits cells, supporting up to 10 A of charge current, and is available in a 28-pin, 5x5-mm thin QFN package. – Reverse-Conduction Protection Input FET • Supports Two, Three, or Four Li+ Cells • 5 – 24 V AC/DC-Adapter Operating Range • Analog Inputs with Ratiometric Programming via Resistors or DAC/GPIO Host Control 28 27 26 25 24 23 22 – Charge Voltage (4-4.512 V/cell) 1 CHGEN 21 LEARN – Charge Current (up to 10 A, with 10-mΩ ACN 2 20 CELLS sense resistor) bq24751A ACP 3 19 SRP – Adapter Current Limit (DPM) 28 LD QFN ACDRV 4 18 SRN • Status and Monitoring Outputs TOP VIEW ACDET 5 17 BAT – AC/DC Adapter Present with Programmable 6 ACSET 16 SRSET Voltage Threshold ACOP 15 IADAPT 7 – Current Drawn from Input Source 8 9 10 11 12 13 14 • Battery Learn Cycle Control • Supports Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc. • Charge Enable • 28-pin, 5x5-mm QFN package 1 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. Copyright © 2007–2009, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. OVPSET PVCC AGND BTST VREF HIDRV VDAC PH VADJ REGN ACGOOD LODRV BATDRV PGND
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