LTM8061 32V, 2A Module Li-Ion/ Polymer Battery Charger FEATURES DESCRIPTION n Wide Input Voltage Range: 4.95V to 32V The LTM 8061 is a high ef ciency 32V, 2A Module (40V Absolute Maximum) standalone Li-Ion battery charger. It is optimized for one n Float Voltage Options: and two-cell packs, with xed oat voltage options: 4.1V, 1-Cell: 4.1V, 4.2V 4.2V, 8.2V and 8.4V. The LTM8061 provides a constant- 2-Cell: 8.2V, 8.4V current/constant-voltage charge characteristic, with n Programmable Charge Current: Up to 2A maximum charge current up to 2A. A precondition feature n User-Selectable Charge Termination: C/10 or trickle charges a depleted battery, and bad battery detec- Onboard Termination Timer tion provides a signal and suspends charging if a battery n Dynamic Charge Rate Programming/Soft-Start Pin does not respond to preconditioning. n Programmable Input Current Limit The LTM8061 can be con gured to terminate charging n Optional Reverse Input Protection when charge current falls to one-tenth the programmed n NTC Resistor Temperature Monitor maximum current or to use an internal timer if a time- n 0.5% Float Voltage Accuracy based termination scheme is desired. Once charging is n Bad-Battery Detection with Auto-Reset terminated, the LTM8061 enters a low current standby n Tiny, Low Pro le (9mm 15mm 4.32mm) Surface mode. An auto-restart feature starts a new charge cycle if Mount LGA Package the battery voltage drops 2.5% from the oat voltage, or if a new battery is inserted into a charging system. APPLICATIONS The LTM8061 is packaged in a thermally enhanced, com- n Industrial Handheld Instruments pact (9mm 15mm 4.32mm) over-molded land grid n 12V to 24V Automotive and Heavy Equipment array (LGA) package suitable for automated assembly n Professional Video/Camera Chargers by standard surface mount equipment. The LTM8061 is L, LT, LTC, LTM, Linear Technology, Linear logo, Module and PolyPhase are registered RoHS compliant. trademarks and PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners TYPICAL APPLICATION Standalone Single Cell 2A Li-Ion Battery Charger Battery Charging Pro le with C/10 Termination from 6V to 32V Input 2500 NORMAL CHARGING LTM8061-4.1 2000 V IN V BAT INA 6V TO 32V SINGLE V /CLP BIAS + INC CELL 1500 V IN 4.1V BATTERY RUN 1000 RNG/SS CHRG 4.7F TMR FAULT AVAILABLE OPTIONS: 1-CELL: 4.1V, 4.2V NTC 500 PRECONDITION GND 2-CELL: 8.2V, 8.4V 8061 TA01a TERMINATION 0 0132 4 BATTERY VOLTAGE (V) 8061 TA01b 8061f 1 CHARGING CURRENT (mA)LTM8061 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) 1234567 V , V , V ....................................................40V INA INC/CLP IN A RUN, CHRG, FAULT ...................................V + 0.5, 40V IN TMR, RNG/SS, NTC .................................................2.5V B BANK 2 BIAS, BAT .................................................................10V C BAT Internal Operating Temperature D (Note 2) ................................................................. 125C BANK 1 E Maximum Body Solder Temperature ..................... 245C GND F G BIAS H RNG/SS NTC J FAULT TMR K CHRG RUN V V /CLP V INC INA IN L BANK 5 BANK 4 BANK 3 LGA PACKAGE 77-LEAD (15mm s 9mm s 4.32mm) T = 125C, = 17.0C/W, = 16.2C/W, JMAX JA JCtop = 6.1C/W, = 11.2C/W, JCbottom JB values determined per JEDEC 51-9, 51-12 Weight = 1.7g ORDER INFORMATION LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTM8061EV-4.1 PBF LTM8061EV-4.1 PBF LTM8061V-41 40C to 125C 77-Lead (15mm 9mm 4.32mm) LTM8061IV-4.1 PBF LTM8061IV-4.1 PBF LTM8061V-41 40C to 125C 77-Lead (15mm 9mm 4.32mm) LTM8061EV-4.2 PBF LTM8061EV-4.2 PBF LTM8061V-42 40C to 125C 77-Lead (15mm 9mm 4.32mm) LTM8061IV-4.2 PBF LTM8061IV-4.2 PBF LTM8061V-42 40C to 125C 77-Lead (15mm 9mm 4.32mm) LTM8061EV-8.2 PBF LTM8061EV-8.2 PBF LTM8061V-82 40C to 125C 77-Lead (15mm 9mm 4.32mm) LTM8061IV-8.2 PBF LTM8061IV-8.2 PBF LTM8061V-82 40C to 125C 77-Lead (15mm 9mm 4.32mm) LTM8061EV-8.4 PBF LTM8061EV-8.4 PBF LTM8061V-84 40C to 125C 77-Lead (15mm 9mm 4.32mm) LTM8061IV-8.4 PBF LTM8061IV-8.4 PBF LTM8061V-84 40C to 125C 77-Lead (15mm 9mm 4.32mm) Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container. For more information on lead free part marking, go to: