LTC2965 100V Micropower Single Voltage Monitor FEATURES DESCRIPTION n Wide Operating Range: 3.5V to 100V The LTC 2965 is a low current, high voltage single chan- n Wide Monitoring Range: 3.5V to 98V nel voltage monitor. Internal high value resistors sense n Quiescent Current: 7A the input monitor pin providing a compact and low power n Adjustable Threshold Range solution for voltage monitoring. Two comparator reference n Internal High Value Resistive Dividers inputs (INH and INL) are included to allow configuration of n 1.4% (Max) Threshold Accuracy Over Temperature a high and low threshold using an external resistive divider n Polarity Selection biased from the on-chip reference. A range selection pin n 100V Rated Outputs is provided to set the internal resistive divider for 10x or n Selectable Built-In Hysteresis 40x scaling. The thresholds are scaled according to the n 16-Lead MS and 8-Lead 3mm 3mm DFN Packages range selection settings. Additionally, either INH or INL can be grounded to enable built-in hysteresis. Polarity selection pin allows the output to be inverted. The output APPLICATIONS is 100V capable and includes a 500k pull-up resistor to n Portable Equipment an internal supply. n Battery-Powered Equipment L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog n Telecom Systems Devices, Inc. All other trademarks are the property of their respective owners. n Automotive/Industrial Electronics TYPICAL APPLICATION Undervoltage Monitor 24V 5V V MONITOR RANGE RANGE SELECTION IN V IN 3.5V to 24.5V 10x 100k REF 14V to 98V 40x 200k OUT INH 24V UNDERVOLTAGE THRESHOLD 5V 91k LTC2965 Supply Current vs V CONFIGURATION IN SYS INL 12 909k 10 PS RS GND 8 6 2965 TA01a 4 POLARITY AND RANGE SELECTION 45C RANGE = 40x 25C 2 OUT = LOW 90C I = 0A 125C RISING THRESHOLD 20.0V REF 0 FALLING THRESHOLD 18.2V 0 20 40 60 80 100 HYSTERESIS 1.8V V (V) RANGE 10x IN 2965 TA01b 2965fc 1 For more information www.linear.com/LTC2965 I (A) VINLTC2965 ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) Input Voltages Operating Ambient Temperature Range V ....................................................... 0.3V to 140V LTC2965C ................................................ 0C to 70C IN PS, RS ..................................................... 0.3V to 6V LTC2965I .............................................40C to 85C INH, INL ................................................... 0.3V to 6V LTC2965H .......................................... 40C to 125C Output Voltages Storage Temperature Range .................. 65C to 150C OUT ..................................................... 0.3V to 140V Lead Temperature (Soldering, 10 sec) ...................300C Average Currents V ...................................................................20mA IN OUT ...................................................................5mA REF ....................................................................5mA INH, INL .............................................................1mA PIN CONFIGURATION TOP VIEW TOP VIEW V 1 16 OUT IN V 1 8 OUT IN NC 2 15 NC NC 3 14 NC REF 2 7 GND 9 NC 4 13 NC GND INH RS 3 6 NC 5 12 NC REF 6 11 GND INL 4 5 PS INH 7 10 RS INL 8 9 PS MS PACKAGE DD PACKAGE 16-LEAD PLASTIC MSOP 8-LEAD (3mm 3mm) PLASTIC DFN T = 150C, = 43C/W T = 150C, = 120C/W JMAX JA JMAX JA EXPOSED PAD (PIN 9) PCB GND CONNECTION OPTIONAL (