Features and Benefits
- Manages Total Power Between a USB Peripheral and Battery Charger
- Minimal Voltage Drop (100mV at 500mA)
- Ultralow Battery Drain: 1µA
- Reverse Current Blocking Diode not Required
- Undervoltage Lockout
- Very Few External Components
- Compatible with Several LTC Linear Battery Chargers
- Overtemperature Protected
- Dual Battery Charge Priority Management
- Low Profile (1mm) SOT-23 Package
The LTC4410 enables simultaneous battery charging and operation of portable USB 1.0 and 2.0 compliant devices while they are connected to a USB port. As the USB peripheral load increases, the LTC4410 proportionally reduces the battery charge current to keep the total current less than 500mA or 100mA, depending on the state of the MODE pin.
The LTC4410 includes a USB present output that drives an external P-channel MOSFET to disconnect the battery from the USB peripheral when the USB power is valid. This allows device operation when connected to the USB port, even when the battery is deeply discharged.
Other features include reverse current blocking, thermal shutdown and low quiescent current (80µA in 500mA MODE) that is compliant with USB Suspend Mode.
The LTC4410 is available in the low profile (1mm) SOT-23 (ThinSOT™) package.
- Cellular Phones
- Digital Cameras
- MP3 Players
- Battery Backup Systems
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
LTC4410 Companion Parts
Recommended Related Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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