LTC28928, LTC2900, LTC2900-1CCD Selling Leads, Datasheet
MFG:LT Package Cooled:QFN D/C:0609+
LTC28928, LTC2900, LTC2900-1CCD Datasheet download
Part Number: LTC28928
MFG: LT
Package Cooled: QFN
D/C: 0609+
LTC28928, LTC2900, LTC2900-1CCD
- Table of contents:
Info of LTC28928
Info of LTC2900
Info of LTC2900-1CCD
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About LTC0157
PDF/DataSheet Download
Datasheet: LTC0157
File Size: 163926 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About LTC2900
PDF/DataSheet Download
Datasheet: LTC2900
File Size: 204074 KB
Manufacturer: Linear
Download : Click here to Download
About LTC0157
PDF/DataSheet Download
Datasheet: LTC0157
File Size: 163926 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
LTC2900 General Description
The LTC®2900 is a programmable supply monitor forsystems with up to four supply voltages. One of 16 presetor adjustable voltage monitor combinations can be se-lected using an external resistor divider connected to theprogram pin. The preset voltage thresholds are accurateto ±1.5% over temperature.
The reset delay time is adjustable using an externalcapacitor and the manual reset input may be used with amomentary switch to issue reset pulses with programmedduration. Tight voltage threshold accuracy and glitchimmunity ensure reliable reset operation without falsetriggering. The RST output is guaranteed to be in thecorrect state for VCC down to 1V. The LTC2900-1 featuresan open-drain RST output, while the LTC2900-2 has apush-pull RST output.
The 43µA supply current makes the LTC2900 ideal forpower conscious systems and it may be configured tomonitor less than four inputs. The parts are available inthe 10-lead MSOP and the 10-lead 3mm × 3mm DFNpackages.
LTC2900 Maximum Ratings
V1, V2, V3, V4, VPG, PBR.......................,,...... 0.3V to 7V
RST (LTC2900-1) .....................................,... 0.3V to 7V
RST (LTC2900-2) ................,,.......... 0.3V to (V2 + 0.3V)
CRT ............................................. 0.3V to (VCC + 0.3V)
VREF ............................................. 0.3V to (VCC + 0.3V)
Reference Load Current (IVREF) ............................ ±1mA
V4 Input Current (ADJ Mode) ............................... 1mA
Operating Temperature Range
LTC2900-1C/LTC2900-2C ........................... 0°C to 70°C
LTC2900-1I/LTC2900-2I .................... .... 40°C to 85°C
Storage Temperature Range ................. 65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C
RST (LTC2900-1) .....................................,... 0.3V to 7V
RST (LTC2900-2) ................,,.......... 0.3V to (V2 + 0.3V)
CRT ............................................. 0.3V to (VCC + 0.3V)
VREF ............................................. 0.3V to (VCC + 0.3V)
Reference Load Current (IVREF) ............................ ±1mA
V4 Input Current (ADJ Mode) ............................... 1mA
Operating Temperature Range
LTC2900-1C/LTC2900-2C ........................... 0°C to 70°C
LTC2900-1I/LTC2900-2I .................... .... 40°C to 85°C
Storage Temperature Range ................. 65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C
LTC2900 Features
Simultaneously Monitors Four Supplies
16 User Selectable Combinations of 5V, 3.3V, 3V,2.5V, 1.8V, 1.5V and/or ±Adjustable VoltageThresholds
Guaranteed Threshold Accuracy: ±1.5% ofMonitored Voltage Over Temperature
Low Supply Current: 43µA Typ
Adjustable Reset Time
Small MSOP and 3mm * 3mm DFN Packages
Manual Reset Pin
Open-Drain RST Output (LTC2900-1)
Push-Pull RST Output (LTC2900-2)
Power Supply Glitch Immunity
Guaranteed RST for VCC 1V
16 User Selectable Combinations of 5V, 3.3V, 3V,2.5V, 1.8V, 1.5V and/or ±Adjustable VoltageThresholds
Guaranteed Threshold Accuracy: ±1.5% ofMonitored Voltage Over Temperature
Low Supply Current: 43µA Typ
Adjustable Reset Time
Small MSOP and 3mm * 3mm DFN Packages
Manual Reset Pin
Open-Drain RST Output (LTC2900-1)
Push-Pull RST Output (LTC2900-2)
Power Supply Glitch Immunity
Guaranteed RST for VCC 1V
LTC2900 Typical Application
Desktop and Notebook Computers
Multivoltage Systems
Telecom Equipment
Portable Battery-Powered Equipment
Network Servers
Multivoltage Systems
Telecom Equipment
Portable Battery-Powered Equipment
Network Servers
LTC2900 Connection Diagram
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