产品详情
品牌：DW
产地：广东
产品认证：ROHS
额定电压：1.5V
封装材料：SOT
封装形式：贴片式
功率：大功率
批号：全新原装
频率特性：高频
应用范围：普通工业
针脚数：3
功率特性：大功率
加工定制：否
整流元件：全桥
反向重复峰值电压：1600V
数量：999999999
可售卖地：北京;天津;河北;山西;内蒙古;辽宁;吉林;黑龙江;上海;江苏;浙江;安徽;福建;江西;山东;河南;湖北;湖南;广东;广西;海南;重庆;四川;贵州;云南;西藏;陕西;甘肃;青海;宁夏;新疆
类型：充电芯片
型号：DW03D
Deion：
SD8017 is a complete constant-current & constant voltage linear charger for single cell
lithium-ion and Lithium-Polymer batteries. Its
SOT-23 package and low external component count make SD8017 ideally suited for portable applications. Furthermore, the SD8017 is specifically designed to work within USB power specification. At the same time, SD8017 can also be used in the standalone lithium-ion and
Lithium-polymer battery chargers.
No external sense resistor is needed, and no
blocking diode is required due to the internal
MOSFET architecture. Thermal feedback
regulates the charge current to limit the die
temperature during high power operation or high
ambient temperature. The charge voltage is static
at 4.2V, and the charge current can be programmed externally with a single resistor. The SD8017 automatically terminates the charge cycle when the
charge current drops to 1/10th the programmed
value after the final float voltage is reached.
When the b supply (wall adapter or USB supply) is removed, the SD8017 automatically enters a low current stage, dropping the battery drain current to less than 2uA. The SD8017 can be put into shutdown mode, reducing the supply
current to 20uA.
Other features include charge current monitor,
undervoltage lockout, automatic recharge and a
status pin to indicate charge termination and the presence of an b voltage. SD8017 is intentionally designed to have slightly negative
Tempco. This provides extra protection to Lithium
battery during charging.
Features：
? Programmable Charge Current Up to 800mA.
? No MOSFET, Sense Resistor or Blocking Diode Required.
? Constant-Current/Constant-Voltage Operation
with Thermal Protection to Maximize Charge
Rate without Risk of Overheating.
? Charges Single Cell Li-Ion Batteries Directl from USB Port.
? Preset 4.2V Charge Voltage with ±1% Accuracy.
? 20uA Supply Current in Shutdown.
? 2.9V Trickle Charge Threshold
? Soft-Start Limits Inrush Current.
? Available in 5-Lead SOT-23
(Exposed Pad) Packages.
? RoHS Compliant and Lead (Pb)-Free Application
? Cellular Telephones, PDA’s, MP3 Players.
? Charging Docks and Cradles
? Bluetooth Applications
