LTM8061 Datasheet | Linear Technology

Features n Wide Input Voltage Range: 4.95V to 32V (40V Absolute Maximum) n Float Voltage Options: 1-Cell: 4.1V, 4.2V 2-Cell: 8.2V, 8.4V n Programmable Charge Current: Up to 2A n User-Selectable Charge Termination: C/10 or Onboard Termination Timer n Dynamic Charge Rate Programming/Soft-Start Pin n Programmable Input Current Limit n Optional Reverse Input Protection n NTC Resistor Temperature Monitor n0.5% Float Voltage Accuracy n Bad-Battery Detection with Auto-Reset n Tiny, Low Profile (9mm × 15mm × 4.32mm) Surface Mount LGA Package Applications n Industrial Handheld Instruments n12V to 24V Automotive and Heavy Equipment n Professional Video/Camera Chargers L, LT, LTC, LTM, Linear Technology, Linear logo, µModule and Poly Phase are registered trademarks and Power Path is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners LTM8061 32V, 2A µModule Li-Ion/ Polymer Battery Charger Description The LTM®8061 is a high efficiency 32V, 2A µModule® standalone Li-Ion battery charger. It is optimized for one and two-cell packs, with fixed float voltage options: 4.1V, 4.2V, 8.2V and 8.4V. The LTM8061 provides a constant-current/constant-voltage charge characteristic, with maximum charge current up to 2A. A precondition feature trickle charges a depleted battery, and bad battery detection provides a signal and suspends charging if a battery does not respond to preconditioning. The LTM8061 can be configured to terminate charging when charge current falls to one-tenth the programmed maximum current or to use an internal timer if a timebased termination scheme is desired. Once charging is terminated, the LTM8061 enters a low current standby mode. An auto-restart feature starts a new charge cycle if the battery voltage drops 2.5% from the float voltage, or if a new battery is inserted into a charging system. The LTM8061 is packaged in a thermally enhanced, pact (9mm × 15mm × 4.32mm) over-molded land grid...