ADP3804
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ADP3804

High Frequency Switch Mode Li-Ion Battery Charger

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The ADP3804 is a complete Li-Ion battery charging IC. The device combines high output voltage accuracy with constant current control to simplify the implementation of Constant-Current, Constant-Voltage (CCCV) chargers. The ADP3804 is available in two options. The ADP3804-12.6 guarantees the final battery voltage to 12.6 V ± 0.6%, the ADP3804-12.5 guarantees 12.525 V ± 0.6% and the ADP3804 is adjustable using two external resistors to set the battery voltage. The current sense amplifier has rail-to-rail inputs to accurately operate under low drop out and short circuit conditions. The charge current is programmable with a DC voltage on ISET. A second differential amplifier senses the system current across an external sense resistor and outputs a linear voltage on the ISYS pin. The boosted synchronous driver allows the use of two NMOS transistors for lower system cost.

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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