LTC4124EV#TRMPBF

LTC4124EV#TRMPBF is a simple, high-performance wireless Li-Ion charger with low battery disconnect. The pin-selectable charge current (up to 100mA) and charge voltage ensure versatility while minimizing the number of required external components. Wireless charging with the LTC4124 allows devices to be charged while sealed within enclosures and eliminates bulky connectors in space-constrained applications. The elimination of exposed conductive connectors also creates a more robust device while ensuring an effortless end-user experience. The LTC4124 includes an NTC input for safe temperature-qualified charging and a battery disconnect feature that prevents damage to a battery due to over-discharging. Applications include medical wireless sensors, military wearables, high-end wireless headsets, streaming headsets with Bluetooth connectivity, virtual reality headsets, high-end remote controls, and IoT devices.

• Complete wireless power receiver, Li-Ion charger and PowerPath™ controller
• Wireless input power control and rectification
• Wideband wireless power frequency DC to <gt/>10MHz
• Charge current in constant current mode is 100mA typ (ISEL1 = ISEL2 = VCC, TA = 25°C)
• Pin-selectable charge voltage 4.0V/4.1V/4.2V/4.35V, pin-selectable low battery disconnect 2.7V/3.2V
• Zero battery drain current in disconnect/ship mode
• Pin-selectable low battery pre-charge current enable
• NTC input for temperature qualified charging, safety charge termination timer
• Tiny total solution size with few externals
• 12 lead LQFN package, operating junction temperature range from -20°C to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party