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MAX8713 Dataheets PDF



Part Number MAX8713
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Simplified Multichemistry SMBus Battery Charger
Datasheet MAX8713 DatasheetMAX8713 Datasheet (PDF)

19-3498; Rev 0; 11/04 www.DataSheet4U.com KIT ATION EVALU E L B A AVAIL Simplified Multichemistry SMBus Battery Charger General Description 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 .

  MAX8713   MAX8713


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19-3498; Rev 0; 11/04 www.DataSheet4U.com KIT ATION EVALU E L B A AVAIL Simplified Multichemistry SMBus Battery Charger General Description 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 MAX8713 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 voltage and charge current. High efficiency is achieved through the use of a constant off-time step-down topology 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 highaccuracy 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 evaluation kit is available to reduce design time. Applications Handset Car Kits Digital Cameras PDAs and Tablet Computers Notebook Computers Portable Equipment with Rechargeable Batteries PART MAX8713ETG Ordering Information TEMP RANGE -40°C to +85°C PIN-PACKAGE 24 Thin QFN 4mm x 4mm Typical Operating Circuit EXTERNAL LOAD OPTIONAL SMBus is a trademark of Intel Corp. Pin Configuration DCSNS DCIN LDO BST DHI LX DCIN DCSNS DHI LX N REF 19 DAC 18 17 DLOV DLO PGND CSIP IC3 CSIN FREQ HOST SCL SDA VDD SCL SDA VDD DLO N 24 REF IC1 CCI CCV DAC VDD 1 2 3 4 5 6 23 22 21 20 MAX8713 BST CSIP CSIN BATT BATTERY MAX8713 16 15 14 DLOV LDO GND PGND CCI CCV *EXPOSED PADDLE 7 SDA 8 SCL 9 IC2 10 FREQ 11 GND 12 BATT 13 THIN QFN (4mm x 4mm) ________________________________________________________________ Maxim Integrated Products 1 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. www.DataSheet4U.com Simplified Multichemistry SMBus Battery Charger MAX8713 ABSOLUTE MAXIMUM RATINGS VDCSNS, VDCIN to GND ..........................................-0.3V to +30V VBST to GND ..........................................................-0.3V to +36V VBST to LX ................................................................-0.3V to +6V VDHI to LX..................................................-0.3V to (VBST + 0.3V) VLX to GND................................................................-6V to +30V VDHI to GND ..............................................................-6V to +36V VBATT, VCSIN to GND .............................................-0.3V to +20V VCSIP to VCSIN .......................................................-0.3V to +0.3V PGND to GND .......................................................-0.3V to +0.3V VCCI, VCCV, VDAC, VREF to GND ..............-0.3V to (VLDO + 0.3V) VDLOV, VLDO, VDD, VSCL, VSDA, VFREQ to GND ......-0.3V to +6V VDLO to PGND ........................................-0.3V to (VDLOV + 0.3V) LDO Short-Circuit Current...................................................25mA Continuous Power Dissipation (TA = +70°C) 24-Pin Thin QFN 4mm x 4mm (derate 20.8mW/°C above +70°C).............................................................1667mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VDCIN = VDCSNS = 12V, VBATT = VCSIP = VCSIN = VBST = VLX = 8.4V, GND = PGND = 0, LDO = DLOV, CREF = CLDO = CDLOV = 1µF, CDAC = 0.1µF , VDD = 3.3V. Pins CCI and CCV are compensated per Figure 1. TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER CHARGE VOLTAGE REGULATION ChargingVoltage() = 0x20D0 Battery Regulation Voltage Accuracy ChargingVoltage() = 0x1060 ChargingVoltage() = 0x41A0 and 0x3130 ChargingVoltage() = 0x41A0, VDCIN = 19V Battery Full Charge Voltage ChargingVoltage() = 0x3130, VDCIN = 19V ChargingVoltage() = 0x20D0, VDCIN = 12V ChargingVoltage() = 0x1060, VDCIN = 12V CHARGE CURRENT REGU.


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