BATTERY VOLTAGE (V) LTC4061 Standalone Linear Li-Ion Battery Charger with Thermistor Input Fae Tseru Dpircse Tnoi n Charge Current Programmable Upto 1A The LTC 4061 is a full-featured, flexible, standalone linear n Charges Single-Cell Li-Ion BatteriesDirectly from charger for single-cell Lithium-Ion batteries. It is capable USB Port of operating within USB power specifications. n Preset Charge Voltagewith 0.35% Accuracy Both programmable time and programmable current n ThermistorInput for TemperatureQualified based termination schemes are available. Furthermore, Charging the CHRG open-drain status pin can be programmed to n InputSupply Present Logic Output indicate the battery charge state according to the needs n ThermalRegulation MaximizesCharge Rate of the application. Additional safety features designed WithoutRisk of Overheating to maximize battery lifetime and reliability include NTC n ProgrammableCharge Current Detection/ battery temperature sensing and the SmartStart charg- Termination ing algorithm. n Programmable Charge TerminationT imer n No external sense resistor or external blocking diode is Smart Pulsing Error Feature n required for charging due to the internal MOSFET archi- SmartStart Prolongs Battery Life n tecture. Internal thermal feedback regulates the charge 20A Charger Quiescent Current in Shutdown n current to maintain a constant die temperature during Available in a Low Profile (0.75mm) 10-Lead high power operation or high ambient temperature condi- (3mm 3mm) DFN Package tions. The charge current is programmed with an external resistor. With power applied, the LTC4061 can be put into a acilpp Tsnoi shutdown mode to reduce the supply current to 20A and n Handheld Computers the battery drain current to less than 5A. n Portable MP3 Players Other features include smart recharge, USB C/5 cur- n Digital Cameras rent programming input, undervoltage lockout and AC L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and SmartStart, ThinSOT and PowerPath are trademarks of Linear Technology Corporation. All Present logic output. other trademarks are the property of their respective owners. Protected by U.S. Patents including 6522118. T lacipy a acilpp Tn oi Complete ChargeCycle (1100mAh Battery) 800mA Single-CellLi-Ion Battery Charger 900 4.3 (C/10 Termination) 800 4.2 800mA 700 4.1 V IN V BAT CC 4.3V TO 8V 600 4.0 EN CHRG 1F 500 3.9 C/5 LTC4061 BATTERY BATTERY 4.2V 400 3.8 + CURRENT TIMER ACPR VOLTAGE SINGLE-CELL PROG 300 3.7 Li-Ion BATTERY NTC I DET 200 3.6 GND 619 V = 5V 100 CC 3.5 T = 25C A 4061 TA01a 0 3.4 0 0.5 1.0 1.5 2.0 2.5 3.0 TIME (HOURS) 4061 TA01b 4061fd CHARGE CURRENT (mA)LTC4061 a ulosb T e Mixa Mu M r a Tsgni p ni c no Farugi Tnoi (Note 1) TOP VIEW Input Supply Voltage (V ) ........................ 0.3V to 10V CC BAT 1 10 V EN, ACPR, CHRG, NTC, PROG, CC NTC 2 9 PROG C/5, BAT ..................................................... 0.3V to 10V 11 TIMER 3 8 I DET TIMER, I .................................... 0.3V to V + 0.3V DET CC ACPR 4 7 EN BAT Short-Circuit Duration ...........................Continuous CHRG 5 6 C/5 V Pin Current ...........................................................1A CC DD PACKAGE BAT Pin Current ..........................................................1A 10-LEAD (3mm s 3mm) PLASTIC DFN T = 125C, = 40C/W (NOTE 3) JMAX JA Maximum Junction Temperature (Note 5) ............ 125C EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB Operating Temperature Range (Note 2) ...40C to 85C Storage Temperature Range .................. 65C to 125C o r D re i n Fro Ma Tnoi LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGEDESCRIP TION TEMPERATURE RANGE LTC4061EDD PBF LTC4061EDD TRPBF LBJS 40C to 85C 10-Lead (3mm 3mm) Plastic DFN Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: