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MAX8713 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX8713 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 25 page General Description The MAX8713 multichemistry battery charger simplifies construction of smart chargers with a minimum number of external components. It uses the Intel System Management Bus (SMBus™) to control the charge volt- age and charge current. High efficiency is achieved through the use of a constant off-time step-down topol- ogy with synchronous rectification. The MAX8713 charges one to four lithium-ion (Li+) cells in series and delivers over 2A charge current—scalable with the sense resistor. The MAX8713 drives n-channel MOSFETs for improved efficiency and reduced cost. A low-offset charge-current-sense amplifier provides high- accuracy charge current with small sense resistors. The MAX8713 is available in a space-saving 24-pin 4mm x 4mm thin QFN package and operates over the extended (-40°C to +85°C) temperature range. An eval- uation kit is available to reduce design time. Applications Handset Car Kits Digital Cameras PDAs and Tablet Computers Notebook Computers Portable Equipment with Rechargeable Batteries Features ♦ Over 2A Charge Current ♦ Intel SMBus 2-Wire Serial Interface ♦ ±0.6% Charge Voltage Accuracy ♦ 11-Bit Charge Voltage Resolution ♦ 6-Bit Charge Current Resolution ♦ Adjustable Switching Frequency ♦ +8V to +28V Input Voltage Range ♦ Cycle-By-Cycle Current Limit ♦ Charges Any Battery Chemistry (Li+, NiCd, NiMH, Lead Acid, etc.) ♦ Small 24-Pin TQFN Simplified Multichemistry SMBus Battery Charger ________________________________________________________________ Maxim Integrated Products 1 19-3498; Rev 0; 11/04 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. EVALUATION KIT AVAILABLE Ordering Information PART TEMP RANGE PIN-PACKAGE MAX8713ETG -40°C to +85°C 24 Thin QFN 4mm x 4mm REF 1 IC1 2 CCI 3 CCV 4 DAC 5 VDD 6 DLOV 18 DLO 17 PGND 16 CSIP 15 IC3 14 CSIN 13 7 8 9 10 11 12 24 23 22 21 20 19 MAX8713 *EXPOSED PADDLE THIN QFN (4mm x 4mm) Pin Configuration SMBus is a trademark of Intel Corp. MAX8713 DCIN DHI CSIP CSIN BATT DLOV LDO PGND EXTERNAL LOAD N N GND REF CCI CCV DLO BST LX DAC VDD SCL SDA FREQ BATTERY DCSNS HOST VDD SCL SDA OPTIONAL Typical Operating Circuit |
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