Among them, the LTC4076 has a programmable C/x charge current termination function, while the LTC4077 has a fixed C/10 termination function. The LTC4076 provides a fixed C or C/5 USB charging current selection for low-power USB operation (via the HPWR pin), while the LTC4077 provides programmable C or C/x low-power USB charging current (via the HPWR pin). Applications include PDAs, MP3 players, digital cameras, lightweight portable medical and test equipment, and large color screen cellular phones.
With a final floating voltage accuracy of ±0.6%, the LTC4076 and LTC4077 feature a patented thermal regulation circuit that maximizes charge rates without risk of overheating. These two devices are extremely flexible and can be programmed with a single resistor: wall adapter power supply charging current, USB power supply charging current, and charge termination current. As stand-alone chargers, they also feature trickle charge for battery pre-check, under-voltage lockout, automatic recharge, charge status indication, and a “power present†status output indicating the presence of a wall adapter or USB power source.
The LTC4076 and LTC4077 are available in a low profile (0.75mm) 10-lead 3 x 3mm DFN package. Since no external MOSFETs, sense resistors or isolation diodes are required, the total solution footprint is less than 25mm2. To conserve battery power, the LTC4076 and LTC4077 draw < 6μA from the battery terminal in standby mode and < 2μA in shutdown mode.
The LTC4076 and LTC4077 are rated for operation over the -40°C to 85°C temperature range. Buy in 1,000-piece quantities starting at $1.88 each (for reference only).
Type: Ferro Silicon Magnesium, Rare earth Ferro Silicon Magnesium Size: 1-6mm, 2-12mm, 5-30mm or as per demand
Packing: 25kgs waterproof bags inside 1mt big bag or as per demand
Application: The raw materials used in the production of the nodulizer are all deoxidized and de-rusted, and are produced through special smelting equipment, The melting of the alloys is carried out in a protective atmosphere so that the MgO content in the nodulizer is extremely low, and the MgO content in the RE Mg nodularizer can be stably controlled below 0.8%, or MgO content controlled below 0.5% according to customer demand. The MgO content in nickel-magnesium and copper-magnesium alloy nodulizer can be controlled at 2.5% or less.
Nodulizer
Nodulizer For Casting,Foundry Nodulizer,Casting Nodulizer,Smelting Nodularizer
Shijiazhuang BKDR Metallurgical Science & Technology Co.,Ltd , http://www.bkdrtech.com