LTC2919 Precision Triple/Dual Input UV, OV and Negative Voltage Monitor FEATURES DESCRIPTION n Two Low Voltage Adjustable Inputs (0.5V) The LTC 2919 is a triple/dual input monitor intended for a n Accurate UVLO Provides a Third Monitor Input variety of system monitoring applications. Polarity selec- n Open-Drain RST, OUT1 and OUT2 Outputs tion and a buffered reference output allow the LTC2919 to n Pin Selectable Input Polarity Allows Negative, UV monitor positive and negative supplies for undervoltage and OV Monitoring (UV) and overvoltage (OV) conditions. n Guaranteed Threshold Accuracy: 1.5% The two adjustable inputs have a nominal 0.5V threshold, n 6.5V Shunt Regulator for High Voltage Operation featuring tight 1.5% threshold accuracy over the entire n Low 50A Quiescent Current operating temperature range. Glitch filtering ensures out- n Buffered 1V Reference for Negative Supply Offset puts operate reliably without false triggering. An accurate n Input Glitch Rejection threshold at the V pin provides a third input supply CC n Adjustable Reset Timeout Period monitor for a 2.5V, 3.3V or 5V supply. n Selectable Internal Timeout Saves Components n Two independent output pins indicate the status of each Outputs Guaranteed Low with V = 0.5V CC n adjustable input. A third common output provides a Space Saving 10-Lead 3mm 2mm DFN and MSOP configurable reset timeout that may be set by an accu- Packages n rate internal 200ms timer, programmed with an external AEC-Q100 Qualified for Automotive Applications capacitor, or disabled for a fast response. A three-state input pin sets the input polarity of each adjustable input APPLICATIONS without requiring any external components. n Desktop and Notebook Computers The LTC2919 provides a highly versatile, precise, space- n Network Servers conscious, micropower solution for supply monitoring. n Core, I/O Monitor All registered trademarks and trademarks are the property of their respective owners. Protected n Automotive by U.S. patents, including 6949965, 7292076. TYPICAL APPLICATION 3.3V UV/OV (Window) Monitor Application with SEL Pin Connection for Input Polarity 200ms Internal Timeout (3.3V Logic Out) Combinations 3.3V POLARITY 0.1F V CC 453k 10k ADJ1 ADJ2 SEL PIN LTC29192.5 10k ADJ1 OUT1 V + + UV CC 10k 10.7k REF OUT2 OV FAULT OPEN RST + ADJ2 SEL TMR 76.8k GND GND 2919 TA01a Rev. A 1 Document Feedback For more information www.analog.comLTC2919 ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) Terminal Voltages Operating Temperature Range V (Note 3) ............................................. 0.3V to 6V LTC2919C ................................................ 0C to 70C CC OUT1, OUT2, RST ..................................0.3V to 7.5V LTC2919I ............................................. 40C to 85C ADJ1, ADJ2 ............................................0.3V to 7.5V LTC2919H .......................................... 40C to 125C TMR, SEL ..................................0.3V to (V + 0.3V) Maximum Junction Temperature .......................... 150C CC Terminal Currents Storage Temperature Range .................. 65C to 150C I (Note 3) ...................................................... 10mA Lead Temperature (Soldering, 10 sec) CC I .................................................................... 1mA MSOP-10 ...........................................................300C REF ADJ1, ADJ2 ........................................................1mA PIN CONFIGURATION TOP VIEW TOP VIEW 1 10 SEL ADJ1 SEL 1 10 ADJ1 2 9 V ADJ2 CC V 2 9 ADJ2 11 CC 3 8 OUT1 TMR OUT1 3 8 TMR GND OUT2 4 7 REF 4 7 OUT2 REF RST 5 6 GND 5 6 RST GND MS PACKAGE 10-LEAD PLASTIC MSOP DDB PACKAGE T = 150C, = 120C/W 10-LEAD (3mm 2mm) PLASTIC DFN JMAX JA T = 150C, = 76C/W JMAX JA EXPOSED PAD (PIN 11) MAY BE LEFT OPEN OR TIED TO GND ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2919CDDB-2.5 TRMPBF LTC2919CDDB-2.5 TRPBF LDGT 10-Lead (3mm 2mm) Plastic DFN 0C to 70C LTC2919IDDB-2.5 TRMPBF LTC2919IDDB-2.5 TRPBF LDGT 10-Lead (3mm 2mm) Plastic DFN 40C to 85C LTC2919HDDB-2.5 TRMPBF LTC2919HDDB-2.5 TRPBF LDGT 10-Lead (3mm 2mm) Plastic DFN 40C to 125C LTC2919CDDB-3.3 TRMPBF LTC2919CDDB-3.3 TRPBF LDMW 10-Lead (3mm 2mm) Plastic DFN 0C to 70C LTC2919IDDB-3.3 TRMPBF LTC2919IDDB-3.3 TRPBF LDMW 10-Lead (3mm 2mm) Plastic DFN 40C to 85C LTC2919HDDB-3.3 TRMPBF LTC2919HDDB-3.3 TRPBF LDMW 10-Lead (3mm 2mm) Plastic DFN 40C to 125C LTC2919CDDB-5 TRMPBF LTC2919CDDB-5 TRPBF LDMX 10-Lead (3mm 2mm) Plastic DFN 0C to 70C LTC2919IDDB-5 TRMPBF LTC2919IDDB-5 TRPBF LDMX 10-Lead (3mm 2mm) Plastic DFN 40C to 85C LTC2919HDDB-5 TRMPBF LTC2919HDDB-5 TRPBF LDMX 10-Lead (3mm 2mm) Plastic DFN 40C to 125C LTC2919CMS-2.5 PBF LTC2919CMS-2.5 TRPBF LTDGS 10-Lead Plastic MSOP 0C to 70C LTC2919IMS-2.5 PBF LTC2919IMS-2.5 TRPBF LTDGS 10-Lead Plastic MSOP 40C to 85C LTC2919HMS-2.5 PBF LTC2919HMS-2.5 TRPBF LTDGS 10-Lead Plastic MSOP 40C to 125C LTC2919CMS-3.3 PBF LTC2919CMS-3.3 TRPBF LTDMT 10-Lead Plastic MSOP 0C to 70C LTC2919IMS-3.3 PBF LTC2919IMS-3.3 TRPBF LTDMT 10-Lead Plastic MSOP 40C to 85C LTC2919HMS-3.3 PBF LTC2919HMS-3.3 TRPBF LTDMT 10-Lead Plastic MSOP 40C to 125C Rev. A 2 For more information www.analog.com