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LTC1843

Features: `Ultralow Quiescent Current: 3.5A Typ`Open-Drain Outputs Typically Sink Greater Than 20mA`Wide Supply Range: (LTC1841) Single: 2V to 11V Dual: ±1V to ±5.5V`Input Voltage Range Includes the Negative Supply`Reference Output Drives 0.01mF Capacitor`Adjustable Hysteresis`12s Propagation Dela...

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SeekIC No. : 004401912 Detail

LTC1843: Features: `Ultralow Quiescent Current: 3.5A Typ`Open-Drain Outputs Typically Sink Greater Than 20mA`Wide Supply Range: (LTC1841) Single: 2V to 11V Dual: ±1V to ±5.5V`Input Voltage Range Includes the...

LTC1843 Data Sheet

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Part Number:
LTC1843
Supply Ability:
5000

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  • 1~5000
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Product Details

Description



Features:

`Ultralow Quiescent Current: 3.5A Typ
`Open-Drain Outputs Typically Sink Greater Than 20mA
`Wide Supply Range: (LTC1841) Single: 2V to 11V Dual: ±1V to ±5.5V
`Input Voltage Range Includes the Negative Supply
`Reference Output Drives 0.01mF Capacitor
`Adjustable Hysteresis
`12s Propagation Delay with 10mV Overdrive
`No Current Spike When Switching


Application

·Battery-Powered System Monitoring
·Threshold Detectors
·Window Comparators
·Oscillator Circuits


Pinout

Connection Diagram


Specifications

Voltage
V+ to V ................................................12V to 0.3V
IN +, IN , HYST ............. (V + + 0.3V) to (V 0.3V)
REF ................................. (V + + 0.3V) to (V 0.3V)
OUT ............................................. 12V to (V 0.3V)
Current
IN +, IN , HYST ................................................. 20mA
REF ................................................................... 20mA
OUT .................................................................. 50mA
OUT Short-Circuit Duration (V + 5.5V) .....Continuous
Power Dissipation ........................................... 500mW
Operating Temperature Range
LTC1841C/LTC1842C/LTC1843C ........... 0°C to 70°C
LTC1841I/LTC1842I/LTC1843I .......... 40°C to 85°C
Storage Temperature Range ........... 65°C to 150°C
Lead Temperature (Soldering, 10 sec)............... 300°C


Description

The LTC®1841/LTC1842/LTC1843 are ultralow power dual comparators with built-in reference (LTC1842/LTC1843). The comparators feature less than 5.7A supply current over temperature, a 1.182V ±1% reference, programmable hysteresis and open-drain outputs that sink current. The reference output can drive a bypass capacitor of up to 0.01F without oscillation.

The LTC1841 operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. The LTC1842/LTC1843 operate from a single 2.5V to 11V supply or a dual ±1.25V to ±5.5V supply. The LTC1842/LTC1843 hysteresis is easily programmed by using two resistors and the HYST pin. The comparators' input operates from the negative supply to within 1.3V of the positive supply. The comparators'output stage can typically sink greater than 20mA. By eliminating the cross-conduction current that normally happens when the comparators change logic states, power supply glitches are eliminated.
 
The LTC1841/LTC1842/LTC1843 are available in SO-8 packages.




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