LTM8062/LTM8062A 32V , 2A Module Power IN Tracking Battery Chargers FeaT DescripT n Complete Battery Charger System The LTM 8062/LTM8062A are complete 32V , 2A IN n Input Supply Voltage Regulation Loop for Peak Module power tracking battery chargers. The LTM8062/ Power Tracking in MPPT (Maximum Peak Power LTM8062A provide a constant-current/constant-voltage Tracking) Solar Applications charge characteristic, a 2A maximum charge current, and n Resistor Programmable Float Voltage Up to 14.4V employ a 3.3V float voltage feedback reference, so any on the LTM8062 and 18.8V on the LTM8062A desired battery float voltage up to 14.4V for the LTM8062 n Wide Input Voltage Range: 4.95V to 32V and up to 18.8V for the LTM8062A can be programmed (40V Abs Max) with a resistor divider. n 2A Charge Current The LTM8062/LTM8062A employ an input voltage regula- n Accommodates Li-Ion/Polymer, LiFePO , SLA 4 tion loop, which reduces charge current if the input volt- n Integrated Input Reverse Voltage Protection age falls below a programmed level, set with a resistor n User Selectable Termination: C/10 or Termination divider. When the LTM8062/LTM8062A are powered by a Timer solar panel, this input regulation loop is used to maintain n 0.75% Float Voltage Reference Accuracy the panel at peak output power. The LTM8062/LTM8062A n 9mm 15mm 4.32mm LGA Package also feature preconditioning trickle charge, bad battery detection, a choice of termination schemes and automatic restart. Ta The LTM8062/LTM8062A are packaged in a thermally en- n Industrial Handheld Instruments hanced, compact (9mm 15mm 4.32mm) over-molded n 12V to 24V Automotive and Heavy Equipment land grid array (LGA) package suitable for automated n Desktop Cradle Chargers assembly by standard surface mount equipment. The n Solar Power Battery Charging LTM8062/LTM8062A are RoHS compliant. L, LT, LTC, LTM, Linear Technology, the Linear logo and Module are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical Ta 2A LiFePO Module Battery Charger Charge Current vs Battery Voltage 4 2500 LTM8062 V IN V BAT INA NORMAL CHARGING 6V TO 32V 2000 V BIAS IN V CHRG INREG 274k 1500 1-CELL RUN FAULT LiFePO 4 4.7F (3.6V) TMR ADJ 1000 NTC 2.87M GND 500 8062 TA01a PRECONDITION TERMINATION 0 0 1 2 3 4 BATTERY VOLTAGE (V) 8062 TA01b 8062fd 1 For more information www.linear.com/LTM8062 CHARGING CURRENT (mA) ion pplica ions pplica ion uresLTM8062/LTM8062A Ta e MaxiMMu Tar in p Fc T (Note 1) TOP VIEW V , V ...................................................................40V INA IN BIAS ADJ FAULTCHRG GND V , RUN, CHRG, FAULT ......................V + 0.5, 40V INREG IN 7 V BAT BANK 2 NTC TMR RUN INREG TMR, NTC ................................................................2.5V 6 BAT (LTM8062) .........................................................15V 5 BAT (LTM8062A) ......................................................20V V BANK 3 INA 4 BIAS ..........................................................................10V BANK 1 3 ADJ .............................................................................5V GND BANK 4 Maximum Internal Operating Temperature 2 V IN (Note 2) ................................................................. 125C 1 Maximum Body Solder Temperature ..................... 245C A B C D E F G H J K L LGA PACKAGE 77-LEAD (15mm 9mm 4.32mm) T = 125C, = 17.0C/W, = 6.1C/W, JMAX JA JCbottom = 16.2C/W, = 11.2C/W, WEIGHT = 1.7g JCtop JB VALUES DETERMINED PER JEDEC 51-9, 51-12 Dro er Fni MTa LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTM8062EV PBF LTM8062EV PBF LTM8062V 40C to 125C 77-Lead (15mm 9mm 4.32mm) LGA LTM8062IV PBF LTM8062IV PBF LTM8062V 77-Lead (15mm 9mm 4.32mm) LGA 40C to 125C LTM8062AEV PBF LTM8062AEV PBF LTM8062AV 77-Lead (15mm 9mm 4.32mm) LGA 40C to 125C LTM8062AIV PBF LTM8062AIV PBF LTM8062AV 77-Lead (15mm 9mm 4.32mm) LGA 40C to 125C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: