BATTERY TEMPERATURE (C) LTC4010 High Efficiency Standalone Nickel Battery Charger Fae Tseru Dpircse Tnoi n Complete NiMH/NiCd Charger for 1 to 16 Cells The LTC 4010 provides a complete, cost-effective nickel n No Microcontroller or Firmware Required battery fast charge solution in a small package using few n 550kHz PWM Current Source Controller external components. A 550kHz PWM current source n No Audible Noise with Ceramic Capacitors controller and all necessary charge initiation, monitoring n Wide Input Voltage Range: 5.5V to 34V and termination control circuitry are included. n Programmable Charge Current: 5% Accuracy The LTC4010 automatically senses the presence of a DC n Automatic Trickle Precharge adapter and battery insertion or removal. When an external n V Fast Charge Termination DC source is not present, the LTC4010 enters shutdown n Optional T/t Fast Charge Termination and supply current drawn from an installed battery drops n Optional Temperature Qualification to the lowest possible level. Heavily discharged batteries n Automatic NiMH Top-Off Charge are precharged with a trickle current. The LTC4010 can n Programmable Timer simultaneously use both V and T/t fast charge ter- n Automatic Recharge mination techniques and can detect various battery faults. n Multiple Status Outputs If necessary, a top-off charge is automatically applied to n Micropower Shutdown NiMH batteries after fast charging is completed. The IC n 16-Lead Thermally Enhanced TSSOP Package will also resume charging if the battery self-discharges after a full charge cycle. a acilpp Tsnoi All LTC4010 charging operations are qualified by actual n Integrated or Standalone Battery Charger charge time and maximum average cell voltage. Charging n Portable Instruments or Consumer Products may also be gated by minimum and maximum temperature n Battery-Powered Diagnostics and Control limits. NiMH or NiCd fast charge termination parameters n Back-Up Battery Management are pin selectable. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. T lacipy a acilpp Tnoi 2A NiMH Battery Charger TO FROM ADAPTER SYSTEM 2A NiMH Charge Cycle at 1C LOAD 9V 10F 3k LTC4010 1.60 42 V CC FAULT TGATE 1.55 40 CHRG READY 1.50 38 BGATE 47H SINGLE CELL TIMER PGND 1.45 36 VOLTAGE 49.9k SENSE BATTERY 1.40 34 GND 0.05 TEMPERATURE CHEM BAT 1.35 2A 32 CHARGE 10F 10k CURRRENT 10k 1.30 1A 30 V CDIV TOP OFF 2-CELL V CELL NiMH PACK 1.25 28 33nF 0 60 80 100 WITH 10k NTC 20 40 TIME (MINUTES) INTV V DD TEMP 4010 TA01b 0.1F 68nF 4010 TA01a 4010fb SINGLE CELL VOLTAGE (V)LTC4010 a ulosb T e Mixa Mu M r a Tsgni p ni c no Farugi Tnoi (Note 1) TOP VIEW V (Input Supply) to GND ......................... 0.3V to 36V CC FAULT 1 16 READY FAULT, CHRG, V , V , SENSE, CELL CDIV CHRG 2 15 V CC BAT or READY to GND ..................... 0.3V to V + 0.3V CC CHEM 3 14 TGATE SENSE to BAT ....................................................... 0.3V GND 4 13 PGND 17 CHEM, V or TIMER to GND ............... 0.3V to 3.5V TEMP V 5 12 BGATE TEMP PGND to GND ........................................................ 0.3V V 6 11 INTV CELL DD Operating Ambient Temperature Range V 7 10 BAT CDIV (Note 2) ........................................................ 0C to 85C TIMER 8 9 SENSE Operating Junction Temperature (Note 3) ............. 125C FE PACKAGE 16-LEAD PLASTIC TSSOP Storage Temperature Range .................. 65C to 150C T = 125C, q = 38C/W JMAX JA Lead Temperature (Soldering, 10 sec)...................300C EXPOSED PAD (PIN 17) IS GND. MUST BE SOLDERED TO PCB TO OBTAIN SPECIFIED THERMAL RESISTANCE o r D re i n Fro Ma Tnoi LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4010CFE PBF LTC4010CFE TRPBF 4010CFE 16-Lead Plastic TSSOP 0C to 85C LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4010CFE LTC4010CFE TR 4010CFE 16-Lead Plastic TSSOP 0C to 85C Consult LTC Marketing for parts specified with wider operating temperature ranges. For more information on lead free part marking, go to: