19Mar/090
Linear low-pin-lithium battery charger
Linear Technology Corporation (Linear Technology) launch up to 4A charging current 2-4 Li-Ion battery charger LTC4006, which includes the easy constitute an independent high-power satellite 1900 battery charger system necessary I / O signal status. LTC4006 using a narrow 16-pin SSOP package and can provide the end of the output signal charge and the wall adapter detection, as well as for power detection of the charge current value indicator. The IC from 6V to 28V power supply, its synchronous DC / DC step-down mode allows up to 96% efficiency, and LTC4006 can be accounted for as much as 98% empty rate job, so the total space to permit the rate of 0.5 V pressure job, as well as from the low-voltage wall adapter charger. In order to improve safety during charging, LTC4006 has a battery temperature monitor as well as overvoltage and overcurrent protection. The target application has memory backup systems, portable medical and automotive diagnostic tools, GPS, and notebook and notebook PC satellite a60-662 battery.
LTC4006 has a quasi-constant frequency and constant off-time architecture, the architecture in the use of ceramic capacitors, even if circumstances do not produce audible noise. This IC has three models, respectively, with 8.4V (2 cell), 12.6V (3 cell) and 16.8V (4 cell) floating voltage, and its accuracy are ± 0.8%. Available charge current programming resistor to ± 4% typical accuracy. Electricity consumption for the instructions, a special feature of this charging current is expressed as micro-controller or A / D converter voltage. Resistor can be set using the total charge time for 1-3 hours. LTC4006 automatically recharge and trickle charge function.
LTC4006 job at - 40 ° C to 85 ° C temperature range to 1000 as a unit bulk purchase, each priced at 3.60 U.S. dollars.
LTC4006 performance summary:
2,3 or 4 for lithium-ion battery, charger controller complete
Up to 96% efficiency
Up to 4A of charging current
Automatically re-activate the built-charge termination functions
AC adapter current limit the maximum speed satellite a65 series battery , satellite 2100 battery charger
16-pin narrow SSOP package
LTC4006 has a quasi-constant frequency and constant off-time architecture, the architecture in the use of ceramic capacitors, even if circumstances do not produce audible noise. This IC has three models, respectively, with 8.4V (2 cell), 12.6V (3 cell) and 16.8V (4 cell) floating voltage, and its accuracy are ± 0.8%. Available charge current programming resistor to ± 4% typical accuracy. Electricity consumption for the instructions, a special feature of this charging current is expressed as micro-controller or A / D converter voltage. Resistor can be set using the total charge time for 1-3 hours. LTC4006 automatically recharge and trickle charge function.
LTC4006 job at - 40 ° C to 85 ° C temperature range to 1000 as a unit bulk purchase, each priced at 3.60 U.S. dollars.
LTC4006 performance summary:
2,3 or 4 for lithium-ion battery, charger controller complete
Up to 96% efficiency
Up to 4A of charging current
Automatically re-activate the built-charge termination functions
AC adapter current limit the maximum speed satellite a65 series battery , satellite 2100 battery charger
16-pin narrow SSOP package