Controller IC Chip - MAX8725ETI MAX8725E MAX8725 8725E chip for laptop
Controller IC Chip - MAX8725ETI MAX8725E MAX8725 8725E chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0679)
The MAX1909/MAX8725 highly integrated control ICssimplify construction of accurate and efficient multi-chemistry battery chargers. The MAX1909/MAX8725use analog inputs to control charge current and volt-age, and can be programmed by a host microcontroller(μC) or hardwired. High efficiency is achieved throughuse of buck topology with synchronous rectification.The maximum current drawn from the AC adapter is pro-grammable to avoid overloading the AC adapter whensupplying the load and the battery charger simultane-ously. The MAX1909/MAX8725 provide a digital outputthat indicates the presence of an AC adapter, and ananalog output that monitors the current drawn from theAC adapter. Based on the presence or absence of theAC adapter, the MAX1909/MAX8725 automatically selectthe appropriate source for supplying power to the sys-tem by controlling two external p-channel MOSFETs.Under system control, the MAX1909/MAX8725 allow thebattery to undergo a relearning or conditioning cycle inwhich the battery is completely discharged through thesystem load and then recharged.The MAX1909 includes a conditioning charge featurewhile the MAX8725 does not. The MAX1909/MAX8725are available in space-saving 28-pin, 5mm ✕5mm thinQFN packages and operate over the extended -40°C to+85°C temperature range. The MAX1909/MAX8725 arenow available in lead-free packages.
±0.5% Accurate Charge Voltage (0°C to +85°C)♦±3% Accurate Input Current Limiting♦±5% Accurate Charge Current♦Programmable Charge Current >4A♦Automatic System Power-Source Selection♦Analog Inputs Control Charge Current andCharge Voltage♦Monitor Outputs forCurrent Drawn from AC Input SourceAC Adapter Presence♦Up to 17.65V (max) Battery Voltage♦Maximum 28V Input Voltage♦Greater than 95% Efficiency♦Charge Any Battery Chemistry: Li+, NiCd, NiMH,Lead Acid, etc.
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Integrated Circuits (ICs)IC CHIP for laptop motherboards
1231706 1-CHIP0679 1-CHIP0679 Controller IC Chip - MAX8725ETI MAX8725E MAX8725 8725E chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0679) Controller IC Chip - MAX8725ETI MAX8725E MAX8725 8725E chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0679) Controller IC Chip - MAX8725ETI MAX8725E MAX8725 8725E chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0679)
Please make sure you have advanced soldering skill to solder the chips that you will order from us. When you receive before using it, please confirm the chip you received is brand new as described,if you suspect the chip is not new or not as described. Please don't use it and contact us immediately. Once it has been used, no return will be accepted. Please check before you buy it.Thanks for your understanding.
Lead solder balls' melting point is 180?, 210?-215? is the best melting temperature.
Lead Free solder balls' melting point is 217?, 235?-245? is the best melting temperature.
The temperatures listed above are the chip's solder balls actual temperatures (they are measured by the measuring wire on theBGA machine),but not the temperatures from the BGA rework station's top bottom heat guns.
If soldering a new Lead solder balls chip with Lead Free temperature curve (profile), it will overheat the new chip.
If soldering a new Lead Free solder balls chip with Lead temperature curve (profile), it will not completely melt the lead free solder balls on the new chip.
Most of the laser head have one or twoanti-static pointto prevent static burn laser tube as a security measure. It's better to wear an antistatic wrist strap or wash your hands before welding and installation.
When using a high-grade anti-static soldering iron,you can remove the anti-static point directly, ordinary iron requires special attention, heat iron to reached soldering temperature,then remember to turn off the iron's power, prevent static of iron burn laser tube