| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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3 pcs
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3 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Battery Chemistry | |
| Battery Pack Voltage | |
| Charge Current | |
| Current | |
| Lead Style | |
| Mounting Type | |
| Operating Temperature | |
| Supplier Device Package | |
| Supplier Package | |
| Tape & Reel | |
| Voltage |
The MAX1909ETI+T, manufactured by Analog Devices (formerly Maxim Integrated), is a sophisticated integrated circuit designed for multichemistry battery charging applications. This device simplifies the construction of accurate and efficient battery chargers, supporting chemistries such as Li+, NiCd, NiMH, and Lead Acid.
Key electrical specifications include a maximum input voltage of 28V and a maximum battery voltage of 17.65V. The charge current is programmable and can exceed 4A, with tight tolerances of ±5% for charge current and ±3% for input current limiting. Charge voltage accuracy is maintained at ±0.5% over the operating temperature range of 0°C to +85°C.
This IC utilizes a buck topology with synchronous rectification for high efficiency. It features automatic system power source selection based on AC adapter presence and provides analog monitoring of current drawn from the AC input. The MAX1909ETI+T is supplied in a space-saving 28-pin, 5mm x 5mm thin QFN package, suitable for surface mounting.
Applications for this component include notebook and subnotebook computers, as well as hand-held data terminals, where precise and reliable battery management is crucial.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.29 | $1.29 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum input voltage is 28V.
The charge current is programmable and can exceed 4A.
The charge voltage accuracy is ±0.5% over the 0°C to +85°C operating temperature range.
It supports multi-chemistry charging, including Li+, NiCd, NiMH, and Lead Acid.
The operating temperature range is -40°C to +85°C.
It is supplied in a 28-TQFN (5x5) package for surface mounting.