Отправил MACTEP.Дата добавления 12.12.2009 (2140 прочтений)
Charge Controller for Nickel-Cadmium and Nickel-Metal Hydride Batteries
General Description The ICS1700A is a CMOS device designed for the intelligent charge control of either nickel-cadmium (KiCd) or nickel-metal hydride (NiMH) batteries. The controller uses a pulsed-current charging technique together with voltage slope termination. The ICS1700A employs a four stage charge sequence that provides a complete recharge without overcharging. The controller has four user-selectable charge rates available for customized charging systems. The ICS1700A is a pin-for-pin replacement for the original ICS1700 controller. The ICS1700A monitors for the presence of a batter}' and begins charging if a battery is installed within the first 10 seconds after a reset. Voltage and temperature are measured to ensure a batter}' is within fast charge conditions before charge is initiated. Applications Batter}' charging systems for: Portable consumer electronics Powertools Audio video equipment Communications equipment Wireless handsets
Features • Multiple charge termination methods include: Voltage slope Maximum temperature Charge timer • Four stage charge sequence: Soft start charge Fast charge Topping charge Maintenance charge • Reverse-pulse charging available in all charge stages • Four programmable charge rates between 15 minutes (4C) and two hours (C.2) • (Xu-of-temperature range detection Hot battery: charger shutdown Cold battery: low current charge • Ten second polling mode for battery detection • Battery fault with shutdown protection