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MAX17043X+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX17043X+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 14 page General Description The MAX17043/MAX17044 are ultra-compact, low-cost, host-side fuel-gauge systems for lithium-ion (Li+) batter- ies in handheld and portable equipment. The MAX17043 is configured to operate with a single lithium cell and the MAX17044 is configured for a dual-cell 2S pack. The MAX17043/MAX17044 use a sophisticated Li+ bat- tery-modeling scheme, called ModelGauge™ to track the battery’s relative state-of-charge (SOC) continuously over a widely varying charge/discharge profile. Unlike traditional fuel gauges, the ModelGauge algorithm elim- inates the need for battery relearn cycles and an exter- nal current-sense resistor. Temperature compensation is possible in the application with minimal interaction between a µC and the device. A quick-start mode provides a good initial estimate of the battery’s SOC. This feature allows the IC to be located on system side, reducing cost and supply chain constraints on the battery. Measurement and esti- mated capacity data sets are accessed through an I2C interface. The MAX17043/MAX17044 are available in either a 0.4mm pitch 9-bump UCSP™ or 2mm x 3mm, 8-pin TDFN lead-free package. Applications Features ♦ Host-Side or Battery-Side Fuel Gauging 1 Cell (MAX17043) 2 Cell (MAX17044) ♦ Precision Voltage Measurement ±12.5mV Accuracy to 5.00V (MAX17043) ±30mV Accuracy to 10.00V (MAX17044) ♦ Accurate Relative Capacity (RSOC) Calculated from ModelGauge Algorithm ♦ No Offset Accumulation on Measurement ♦ No Full-to-Empty Battery Relearning Necessary ♦ No Sense Resistor Required ♦ External Alarm/Interrupt for Low-Battery Warning ♦ 2-Wire Interface ♦ Low Power Consumption ♦ Tiny, Lead(Pb)-Free, 8-Pin, 2mm x 3mm TDFN Package or Tiny 0.4mm Pitch 9-Bump UCSP Package Compact, Low-Cost 1S/2S Fuel Gauges with Low-Battery Alert ________________________________________________________________ Maxim Integrated Products 1 Ordering Information Li+ PROTECTION CIRCUIT MAX17043 MAX17044 CELL 1 μF 1k Ω 10nF 150 Ω GND EP CTG SCL SDA QSTRT VDD ALRT SYSTEM μP I2C BUS MASTER INTERRUPT 4.7k Ω Simplified Operating Circuit 19-4811; Rev 4; 8/11 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. EVALUATION KIT AVAILABLE PART TEMP RANGE PIN-PACKAGE MAX17043G+U -20°C to +70°C 8 TDFN-EP* MAX17043G+T -20°C to +70°C 8 TDFN-EP* MAX17043X+ -20°C to +70°C 9 UCSP MAX17043X+T10 -20°C to +70°C 9 UCSP MAX17044G+U -20°C to +70°C 8 TDFN-EP* MAX17044G+T -20°C to +70°C 8 TDFN-EP* MAX17044X+ -20°C to +70°C 9 UCSP MAX17044X+T10 -20°C to +70°C 9 UCSP + Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. * EP = Exposed pad. Smartphones MP3 Players Digital Still Cameras Digital Video Cameras Portable DVD Players GPS Systems Handheld and Portable Applications ModelGauge is a trademark of Maxim Integrated Products, Inc. UCSP is a trademark of Maxim Integrated Products, Inc. |
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