LTC1730是Linear公司的一款脉冲充电器产品，LTC1730是Lithium-Ion Battery Pulse Chargers with Overcurrent Protection，本站介绍了LTC1730的封装应用图解、特点和优点、功能等，并给出了与LTC1730相关的凌力尔特元器件型号供参考。
LTC1730 - Lithium-Ion Battery Pulse Chargers with Overcurrent Protection
LTC1730 - Lithium-Ion Battery Pulse Chargers with Overcurrent Protection - Linear Technology（凌力尔特）
The LTC1730 is a complete pulse charger for 1-cell lithium-ion batteries. When charging a depleted cell, the internal MOSFET is fully on allowing the current limited input power source to provide charge current to the battery, virtually eliminating heat generation in the charger.
As the battery accepts charge and approaches the programmed voltage, the internal MOSFET begins switching off and on with the duty cycle gradually decreasing as the battery approaches a fully charged condition. A programmable timer ends the charge cycle. The end-of-charge condition is indicated at the CHRG pin when the average charge current falls to C/10. Removing the input voltage puts the LTC1730 into a sleep mode, dropping the battery current drain to less than 1µA (maximum).
An external sense resistor limits the maximum charge current as a safety precaution against a user connecting a wall adapter with the incorrect or no current limit. The internal MOSFET prevents reverse battery current from flowing if the input voltage is shorted to ground, eliminating the need for a blocking diode.
The LTC1730-4 is available in the 16-pin SSOP package and the LTC1730-4.2 is available in the 8-pin SO package.
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
|---|---|---|---|---|
| LTC1730EGN-4 | SSOP-16 | E | $2.33 | $2.05 |
| LTC1730EGN-4#PBF | SSOP-16 | E | $2.33 | $2.05 |
| LTC1730EGN-4#TR | SSOP-16 | E | $2.11 | |
| LTC1730EGN-4#TRPBF | SSOP-16 | E | $2.11 | |
| LTC1730ES8-4.2 | SO-8 | E | $2.07 | $1.85 |
| LTC1730ES8-4.2#PBF | SO-8 | E | $2.07 | $1.85 |
| LTC1730ES8-4.2#TR | SO-8 | E | $1.91 | |
| LTC1730ES8-4.2#TRPBF | SO-8 | E | $1.91 |
