MAX8725ETI+T

highly integrated control IC, QFN, 28V Input Voltage

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Price:: US $1.50~3.00 / piece [Get Latest Price]

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PartNumber:: MAX8725ETI+T

Brand:: Maxim Integrated Products - Maxim | Pack: QFN | D/C: 08+

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Products Upload time: 2011-06-29

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Product Summary

The MAX8725ETI+T highly integrated control IC simplifies construction of accurate and efficient multichemistry battery chargers. The MAX8725ETI+T uses analog inputs to control charge current and voltage, and can be programmed by a host microcontroller (μC) or hardwired. High efficiency is achieved through use of buck topology with synchronous rectification.

Parametrics

MAX8725ETI+T absolute maximum ratings:(1)DCIN, CSSP, CSSN, SRC, ACOK to GND:-0.3V to +30V; (2)DHIV :SRC + 0.3, SRC - 6V; (3)DHI, PDL, PDS to GND :-0.3V to (VSRC + 0.3); (4)BATT, CSIP, CSIN to GND :-0.3V to +20V; (5)CSIP to CSIN or CSSP to CSSN or PGND to GND :-0.3V to +0.3V; (6)CCI, CCS, CCV, DLO, IINP, REF,; (7)ACIN to GND:-0.3V to (VLDO + 0.3V); (8)DLOV, VCTL, ICTL, MODE, CLS, LDO,; (9)PKPRES to GND:-0.3V to +6V; (10)DLOV to LDO:-0.3V to +0.3V; (11)DLO to PGND:-0.3V to (DLOV + 0.3V); (12)LDO Short-Circuit Current:50mA; (13)Continuous Power Dissipation (TA = +70℃); (14)28-Pin TQFN (derate 20.8mW℃ above +70℃) :1666mW; (15)Operating Temperature Range:-40℃ to +85℃; (16)Junction Temperature:+150℃; (17)Storage Temperature Range :-60℃ to +150℃; (18)Lead Temperature (soldering, 10s) :+300℃.

Features

MAX8725ETI+T features:(1).+-0.5% Accurate Charge Voltage (0℃ to +85℃); (2). +-3% Accurate Input Current Limiting; (3). +-5% Accurate Charge Current; (4). Programmable Charge Current >4A; (5). Automatic System Power-Source Selection; (6). Analog Inputs Control Charge Current and Charge Voltage; (8). Monitor Outputs for Current Drawn from AC Input Source AC Adapter Presence; (11). Up to 17.65V (max) Battery Voltage; (12). Maximum 28V Input Voltage; (13). Greater than 95% Efficiency; (14). Charge Any Battery Chemistry: Li+, NiCd, NiMH Lead Acid, etc.