LTC2960 36V Nano-Current Two-Input Voltage Monitor Fea T Descrip T n 850nA Quiescent Current The LTC 2960 is a nano-current, high voltage two-input n Operating Range: 2.5V < V < 36V voltage monitor, ideally suited for multicell battery ap- CC n 1.5% (Max) Accuracy Over Temperature plications. External resistive dividers configure custom n Adjustable Reset Threshold comparator thresholds. The supervisory circuit monitors n Wide Temperature Range (40C to 125C) the ADJ input and pulls the RST output low when the input + n Adjustable IN /IN Threshold drops below threshold. A reset timeout period delays the n Manual Reset Input return of the RST output to a high state when the input n Compact 2mm 2mm 8-lead DFN and rises above the threshold. The spare comparator allows TSOT-23 (ThinSOT) Packages voltage conditions to be detected with either a non-inverting + input, IN (LTC2960-1/LTC2960-3) or an inverting input, a T IN (LTC2960-2/LTC2960-4). A manual reset (MR) input is provided for external activation of the reset output. n Portable Equipment n Battery Powered Equipment Other options provided on the LTC2960-1/LTC2960-2 in- n Security Systems clude a reset timeout period select pin, RT, to select between n Automotive Systems 15ms or 200ms reset timeout periods. The LTC2960-3/ LTC2960-4 have a fixed 200ms reset timeout period. The LTC2960 Option Table RST and OUT outputs are available with active pull-up cir- Option Inputs Reset Timeout Period Output Type + cuits to an output logic supply pin (LTC2960-3/LTC2960-4) LTC2960-1 ADJ/IN 15ms/200ms 36V Open-Drain LTC2960-2 ADJ/IN 15ms/200ms 36V Open-Drain or 36V open-drain outputs (LTC2960-1/LTC2960-2). + LTC2960-3 ADJ/IN 200ms Active Pull-Up L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property LTC2960-4 ADJ/IN 200ms Active Pull-Up of their respective owners. Typical a T Battery and Regulator Monitor Supply Current vs Supply Voltage 1200 6V < V < 8.4V IN MR=5V, 27C V OUT LTC3632 1.8V DC/DC Li-Ion + R2 R4 900 4.2V 6.04M 1.3M GND C1 C2 LTC2960-3 0.1F 1F 50V V DV CC CC 600 + IN RST RESET R1 Li-Ion OUT + LOW BATTERY 402k 300 4.2V MR ADJ GND R3 402k 2960 TA01 0 0 8 16 24 32 40 V (V) CC POWER-FAIL FALLING THRESHOLD = 6.410V RESET FALLING THRESHOLD = 1.693V 2960 TA01a 2960fa 1 For more information www.linear.com/LTC2960 I (nA) CC ion pplica ions pplica ion uresLTC2960 a T e Maxi Mu M r a T (Notes 1 & 2) Input Voltages Average Currents V , RT, MR .......................................... 0.3V to 40V RST, OUT ...........................................................5mA CC DV ........................................................ 0.3V to 6V Operating Ambient Temperature Range CC + ADJ, IN , IN ......................................... 0.3V to 3.5V LTC2960C ................................................ 0C to 70C Output Voltages (LTC2960-1/LTC2960-2) LTC2960I .............................................40C to 85C RST, OUT ............................................... 0.3V to 40V LTC2960H .......................................... 40C to 125C Output Voltages (LTC2960-3/LTC2960-4) Storage Temperature Range .................. 65C to 150C RST, OUT (DV 1.6V) ......... 0.3V to (DV + 0.3V) Lead Temperature (Soldering, 10 sec) CC CC RST, OUT (DV = GND) ....................... 0.3V to 6.3V TSOT-23 Package .............................................300C CC p c F T TOP VIEW + V 1 8 IN /IN TOP VIEW CC + RT/DV 2 7 ADJ IN /IN 1 8 V CC CC 9 ADJ 2 7 RT/DV CC RST 3 6 MR MR 3 6 RST OUT 4 5 GND GND 4 5 OUT DC8 PACKAGE TS8 PACKAGE 8-LEAD (2mm 2mm) PLASTIC DFN 8-LEAD PLASTIC TSOT-23 T = 150C, q = 80.6C/W T = 150C, q = 195C/W JMAX JA JMAX JA EXPOSED PAD (PIN 9) PCB GND CONNECTION OPTIONAL o r D i n F Ma T Lead Free Finish TAPE AND REEL (MINI) TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2960CDC-1 TRMPBF LTC2960CDC-1 TRPBF LFZZ 8-Lead (2mm 2mm) Plastic DFN 0C to 70C LTC2960IDC-1 TRMPBF LTC2960IDC-1 TRPBF LFZZ 8-Lead (2mm 2mm) Plastic DFN 40C to 85C LTC2960HDC-1 TRMPBF LTC2960HDC-1 TRPBF LFZZ 8-Lead (2mm 2mm) Plastic DFN 40C to 125C LTC2960CDC-2 TRMPBF LTC2960CDC-2 TRPBF LGBC 8-Lead (2mm 2mm) Plastic DFN 0C to 70C LTC2960IDC-2 TRMPBF LTC2960IDC-2 TRPBF LGBC 8-Lead (2mm 2mm) Plastic DFN 40C to 85C LTC2960HDC-2 TRMPBF LTC2960HDC-2 TRPBF LGBC 8-Lead (2mm 2mm) Plastic DFN 40C to 125C LTC2960CDC-3 TRMPBF LTC2960CDC-3 TRPBF LFSF 8-Lead (2mm 2mm) Plastic DFN 0C to 70C LTC2960IDC-3 TRMPBF LTC2960IDC-3 TRPBF LFSF 8-Lead (2mm 2mm) Plastic DFN 40C to 85C LTC2960HDC-3 TRMPBF LTC2960HDC-3 TRPBF LFSF 8-Lead (2mm 2mm) Plastic DFN 40C to 125C LTC2960CDC-4 TRMPBF LTC2960CDC-4 TRPBF LGBF 8-Lead (2mm 2mm) Plastic DFN 0C to 70C LTC2960IDC-4 TRMPBF LTC2960IDC-4 TRPBF LGBF 8-Lead (2mm 2mm) Plastic DFN 40C to 85C LTC2960HDC-4 TRMPBF LTC2960HDC-4 TRPBF LGBF 8-Lead (2mm 2mm) Plastic DFN 40C to 125C 2960fa 2 For more information www.linear.com/LTC2960 ion or er ion igura on in ings bsolu