MAX17435ETG
High-Frequency, Low-Cost SMBus Chargers
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服務與包裝
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例子
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MAX17435ETG 數據表
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目前的價格方案正在編制中。請聯絡我們的客戶服務團隊獲取最新的價格資訊。感謝您的理解和支援!
詳細說明
General DescriptionThe MAX17035/MAX17435/MAX17535 integrated multi chemistry battery chargers IC simplify construction of accurate and efficient chargers. The MAX17035/MAX17435/MAX17535 provide SMBusK-programmable charge current, charge voltage, input current limit, relearn voltage, and digital readback of the IINP voltage. The MAX17035/ MAX17435/MAX17535 utilize a charge pump to control the adapter selection n-channel MOSFETs when the adapter is present. When the adapter is absent, the charge pump is shut down and a p-channel MOSFET selects the battery.The MAX17035/MAX17435/MAX17535 provide up to 7A of charge current to 2, 3, or 4 lithium-ion (Li+) cells in series. The charge current, and input current-limit sense amplifiers have low offset errors and can use 10mI sense resistors. The MAX17035/MAX17435/MAX17535 fixed-inductor ripple architecture significantly reduces component size and circuit cost.The MAX17035/MAX17435/MAX17535 provide a digital output that indicates the presence of the adapter, an analog output that indicates the adapter or battery current, depending upon the presence or absence of the adapter, and a digital output that indicates when the adapter current exceeds a user-defined threshold.The MAX17035 operates with a switching frequency of 1.2MHz. The MAX17435 switches at 850kHz, and the MAX17535 switches at 500kHz.The MAX17035/MAX17435/MAX17535 are available in a small, 4mm x 4mm x 0.75mm 24-pin, lead-free QFN package. An evaluation kit is available.Features♦ Low-Cost SMBus Charger♦ High Switching Frequency (1.2MHz, 0.85MHz, 0.5MHz)♦ Internal Boost Switches♦ SMBus-Programmable Charge Voltage, Input Current Limit, Charge Current, Relearn Voltage, and Digital IINP Readback♦ Single-Point Compensation♦ Automatic Selection of System Power Source Adapter n-channel MOSFETs Driven by an Internal Dedicated Charge Pump Adapter Soft-Start♦ ±0.4% Accurate Charge Voltage♦ ±2.5% Accurate Input Current Limiting♦ ±3% Accurate Charge Current♦ Monitor Outputs for AC Adapter Current (±2% Accuracy) Battery Discharge Current (±2% Accuracy) AC Adapter Presence♦ AC Adapter Overvoltage Protection♦ 11-Bit Battery Voltage Setting♦ 6-Bit, Charge-Current Setting/Input Current Setting♦ Improved IINP Accuracy at Low Input CurrentApplications Notebook Computers PDAs and Mobile Communicators 2- to-4 Li+ Cell Battery-Powered Devices
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主要特徵
- ♦ Low-Cost SMBus Charger
- ♦ High Switching Frequency (1.2MHz, 0.85MHz, 0.5MHz)
- ♦ Internal Boost Switches
- ♦ SMBus-Programmable Charge Voltage, Input Current Limit, Charge Current, Relearn Voltage, and Digital IINP Readback
- ♦ Single-Point Compensation
- ♦ Automatic Selection of System Power Source
- Adapter n-channel MOSFETs Driven by an Internal Dedicated Charge Pump
- Adapter Soft-Start
- ♦ ±0.4% Accurate Charge Voltage
- ♦ ±2.5% Accurate Input Current Limiting
- ♦ ±3% Accurate Charge Current
- ♦ Monitor Outputs for
- AC Adapter Current (±2% Accuracy)
- Battery Discharge Current (±2% Accuracy)
- AC Adapter Presence
- ♦ AC Adapter Overvoltage Protection
- ♦ 11-Bit Battery Voltage Setting
- ♦ 6-Bit, Charge-Current Setting/Input Current Setting
- ♦ Improved IINP Accuracy at Low Input Current
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Manufacturer | Maxim Integrated | Product Category ! | Battery Management |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
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