LM809M3-3.08/NOPB Part Information

Details for LM809M3-3.08/NOPB by Texas Instruments

Semiconductors - ICs > Power Management ICs - PMIC > Supervisors & Monitors

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Part Description

The LM809 and LM810 microprocessors supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, powerdown and brown-out conditions. The function of the LM809 and LM810 are to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factoryprogrammed reset threshold. The reset signal remains asserted for 240 ms after VCC rises above the threshold. The LM809 has an active-low RESET output, while the LM810 has an active-high RESET output. Seven standard reset voltage options are available, suitable for monitoring 5-V, 3.3-V, and 3-V supply voltages. With a low supply current of only 15 µA, the LM809 and LM810 are ideal for use in portable equipment.

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Part Features

  • 140-ms Minimum Power-On Reset Pulse Width, 240-ms Typical u2013 Active-Low RESET Output (LM809) u2013 Active-High RESET Output (LM810)
  • Ensured RESET Output Valid for VCC u2265 1 V
  • Fully Specified Over Temperature
  • Low Supply Current, 15-u00b5A Typical
  • Power Supply Transient Immunity
  • Precision Monitoring of Supply Voltages u2013 Available Threshold Options: 2.63 V, 2.93 V, 3.08 V, 4.38 V, 4.63 V
  • Superior Upgrade to MAX809 and MAX810

Part Specifications

Threshold Voltage 3.08V
No. of Supervisors / Monitors 1Monitors
Supply Voltage Min 1.2V
Supply Voltage Max 5.5V
Reset Type Active-Low
Digital IC Case SOT-23
No. of Pins 3Pins
Delay Time 240ms
Operating Temperature Min -40°C
Operating Temperature Max 105°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Operating Temperature Range -40°C to +105°C
Output Current Max 20mA
Supply Current 15µA
Supply Voltage Range 1.2V to 5.5V
Termination Type Surface Mount Device
RoHS Compliant

Alternative Part Descriptions

  • Microprocessor reset cct,LM809M3-3.08 | RS Components
  • IC, VOLTAGE DET, MICROPRO SUPERV, REEL; Threshold Voltage:3.08V; No. of Supervisors / Monitors:1Monitors; Supply Voltage Min:1.2V; Supply Voltage Max:5.5V; Reset Type:Active-Low; Digital IC Case:SOT-23; No. of Pins:3Pins; Delay RoHS Compliant: Yes | Newark Electronics
  • 3-pin voltage supervisor (reset IC) with active-low, push-pull reset for supply monitoring | Texas Instruments
  • Power management IC [Texas Instruments] LM809M3-3.08/NOPB Power management IC | Distrelec
  • Texas Instruments Voltage Supervisor 3-Pin SOT-23, LM809M3-3.08/NOPB | RS Components TR
  • Microprocessor reset cct,LM809M3-3.08 | RS Components IT
  • SMD | GreenChips

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