LTC2916 Linear Technology, LTC2916 Datasheet
LTC2916
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LTC2916 Summary of contents
Page 1
... For the LTC2915, an additional three-state input determines the tolerance (–5%, –10%, –15%). The tolerance for the LTC2916 is fi xed at –5%. Threshold accuracy is guaranteed at ±1.5% over the entire operating temperature range. Glitch fi ltering ensures reliable reset operation without false triggering ...
Page 2
... For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: 2 (Notes 1, 2) Operating Temperature Range LTC2915C/LTC2916C ............................... 0°C to 70°C LTC2915I/LTC2916I .............................. –40°C to 85°C LTC2915H/LTC2916H ......................... –40°C to 125°C + 0.3)V Storage Temperature Range ................... –65°C to 150°C CC TS8 Lead Temperature (Soldering, 10 sec) ........... 300° ...
Page 3
... V = 2.5V, unless otherwise noted. (Note CONDITIONS I = 0.5mA VCC SEL1, SEL2, TOL Open SEL1, SEL2, TOL = GND (LTC2915 (LTC2916) CC Fixed Threshold Modes 0μA TPIN V = 0V, V TPIN CC LTC2915/LTC2916 MIN TYP MAX UNITS l 0.8 l 1.5 l 5.7 6.2 7 μ μA l 11.04 11 ...
Page 4
... Adjustable Reset Timeout Period RST(EXT) www.DataSheet4U.com VM Undervoltage Detect to RST t UV Asserted Output Voltage Low RST V OL RST Output Voltage High Leakage I OH(RST) Manual Reset Input (LTC2916) V Input Low Voltage IL V Input High Voltage IH R Pull Up Resistance PU t Pulsewidth PW Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device ...
Page 5
... G04 RST Pull-Down Current RST AT 150mV 3 2 RST AT 50mV SUPPLY VOLTAGE, V 29156 G07 LTC2915/LTC2916 T = 25°C unless otherwise noted. A Allowable Glitch Duration vs Magnitude 300 250 200 RESET OCCURS ABOVE CURVE 150 100 100 125 ...
Page 6
... PIN FUNCTIONS (TSOT/DFN) GND (Pin 4/Pin 1): Device Ground. MR (Pin 3/Pin 2) (LTC2916 only): Manual Reset Input (Active Low). A low level on the MR input causes the part to issue a reset, which is released one reset timeout after the input goes high. The pin has an internal 100k pull-up ...
Page 7
... For the LTC2915, a third three-state input selects the tolerance at which the supply connected to the VM pin is monitored (–5%, –10%, –15%). The tolerance for the LTC2916 is fi xed at –5%. Threshold accuracy is guaranteed at ±1.5% over the entire operating temperature range. ...
Page 8
... LTC2915/LTC2916 APPLICATIONS INFORMATION Any power supply has some tolerance band within which it is expected to operate (e.g. 5V±10%). It is generally undesirable that a supervisor issue a reset when the power supply is inside this tolerance band. Such a “nuisance” reset reduces reliability by preventing the system from functioning under normal conditions ...
Page 9
... Asserting MR low when RST is high, initiates a reset, resulting in RST being asserted low for the set reset timeout. Shunt Regulator The LTC2915 and LTC2916 contain an internal 6.2V shunt regulator on the V voltage supply. To operate the part from a supply higher than 5.7V, the V the supply. This resistor should be sized according to the ...
Page 10
... V CC LTC2915 RST VM SEL1 SEL2 R1 51.1k TOL GND 1.8V, –5% Supply Monitor with Manual Reset 1.8V C BYPASS 0.1μ LTC2916 RST VM SEL1 SEL2 MR GND RT 10k* MANUAL RESET C PUSHBUTTON RT *OPTIONAL RESISTOR RECOMMENDED TO EXTEND ESD TOLERANCE 10 5V, –10% Tolerance Supply Monitor with R PU 10k V CC μ ...
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... DDB Package 8-Lead Plastic DFN (3mm × 2mm) (Reference LTC DWG # 05-08-1702 Rev B) 3.00 ±0.10 (2 SIDES) 0.70 ±0.05 PIN 1 BAR TOP MARK (SEE NOTE 6) PACKAGE OUTLINE 0.200 REF LTC2915/LTC2916 2.90 BSC (NOTE 4) PIN ONE ID 0.22 – 0.36 0.65 BSC 8 PLCS (NOTE 3) 0.01 – 0.10 1.95 BSC TS8 TSOT-23 0802 R = 0.115 TYP ...
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... Single UV/OV Voltage Monitor, Adjustable UV and OV Trip Values LTC2913 Dual UV/OV Voltage Monitor LTC2914 Qual UV/OV Positive/Negative Voltage Monitor Linear Technology Corporation 12 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● C BYPASS 0.1μ LTC2916 LTC2915 RST VM 12V VM SEL1 SEL1 SEL2 SEL2 MR 1.8V TOL GND RT GND RT 1.8V 1.8V COMMENTS 4 ...