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LTC6991 Datasheet

LTC6991 Datasheet

TimerBlox: Resettable, Low Frequency Oscillator
Part No.: LTC6991
Page: 24 Pages
Size: 547 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-10-26 17:38:22
DataSheet: Download

LTC6991 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC6991CDCB#TRPBF Reel 2500 LDWZ 1 6 0°C ~ 70°C 6-Lead (2mm × 3mm) Plastic DFN  
LTC6991CDCB#TRMPBF Reel 500 LDWZ 1 6 0°C ~ 70°C 6-Lead (2mm × 3mm) Plastic DFN  
LTC6991IDCB#TRPBF Reel 2500 LDWZ 1 6 -40°C ~ 85°C 6-Lead (2mm × 3mm) Plastic DFN  
LTC6991IDCB#TRMPBF Reel 500 LDWZ 1 6 -40°C ~ 85°C 6-Lead (2mm × 3mm) Plastic DFN  
LTC6991HDCB#TRPBF Reel 2500 LDWZ 1 6 -40°C ~ 125°C 6-Lead (2mm × 3mm) Plastic DFN  
LTC6991HDCB#TRMPBF Reel 500 LDWZ 1 6 -40°C ~ 125°C 6-Lead (2mm × 3mm) Plastic DFN  
LTC6991CS6#TRPBF Reel 2500 LTDWY 1 6 0°C ~ 70°C 6-Lead Plastic TSOT-23  
LTC6991CS6#TRMPBF Reel 500 LTDWY 1 6 0°C ~ 70°C 6-Lead Plastic TSOT-23  
LTC6991IS6#TRPBF Reel 2500 LTDWY 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LTC6991IS6#TRMPBF Reel 500 LTDWY 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LTC6991HS6#TRPBF Reel 2500 LTDWY 1 6 -40°C ~ 125°C 6-Lead Plastic TSOT-23  
LTC6991HS6#TRMPBF Reel 500 LTDWY 1 6 -40°C ~ 125°C 6-Lead Plastic TSOT-23  
LTC6991MPS6#TRPBF Reel 2500 LTDWY 1 6 -55°C ~ 125°C 6-Lead Plastic TSOT-23  
LTC6991MPS6#TRMPBF Reel 500 LTDWY 1 6 -55°C ~ 125°C 6-Lead Plastic TSOT-23  
LTC6991IS6#WTRPBF Reel 2500 LTDWY 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LTC6991IS6#WTRMPBF Reel 500 LTDWY 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LTC6991HS6#WTRPBF Reel 2500 LTDWY 1 6 -40°C ~ 125°C 6-Lead Plastic TSOT-23  
LTC6991HS6#WTRMPBF Reel 500 LTDWY 1 6 -40°C ~ 125°C 6-Lead Plastic TSOT-23  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC6991 Datasheet(PDF)

LTC6991 Datasheet(Picture)

LTC6991 Features

  • Period Range: 1ms to 9.5 Hours
  • Configured with 1 to 3 Resistors
  • <1.5% Maximum Frequency Error
  • Output Reset Function
  • 2.25V to 5.5V Single Supply Operation
  • 55µA to 80µA Supply Current
  • (2ms to 9.5hr Clock Period)
  • 500µs Start-Up Time
  • CMOS Output Driver Sources/Sinks 20mA
  • –55°C to 125°C Operating Temperature Range
  • Available in Low Profile (1mm) SOT-23 (ThinSOT) and 2mm × 3mm DFN Packages
  • AEC-Q100 Qualified for Automotive Applications

LTC6991 Applications

  • “Heartbeat” Timers
  • Watchdog Timers
  • Intervalometers
  • Periodic “Wake-Up” Call
  • High Vibration, High Acceleration Environments
  • Portable and Battery-Powered Equipment

LTC6991 Description

The LTC6991 is a silicon oscillator with a programmable period range of 1.024ms to 9.54 hours (29.1µHz to 977Hz), specifically intended for long duration timing events. The LTC6991 is part of the TimerBlox® family of versatile silicon timing devices.

A single resistor, RSET, programs the LTC6991’s internal master oscillator frequency. The output clock period is determined by this master oscillator and an internal frequency divider, NDIV, programmable to eight settings from 1 to 221.

In normal operation, the LTC6991 oscillates with a 50% duty cycle. A reset function is provided to truncate the pulse (reducing the duty cycle). The reset pin can also be used to prevent the output from oscillating.

The RST and OUT pins can be configured for active-low or active-high operation using a polarity function.

LTC6991 Datasheet Related Parts

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