Texas Instruments LM809M3-3.08

3-pin voltage supervisor (reset IC) with active-low, push-pull reset for supply monitoring 3-SOT-23 -40 to 105

Voltage Detector / Microprocessor Supervisor IC; Threshold Voltage, Vtrip:3.08V; Supply Current:15µA; Reset Type:Active-Low; Real Time Clock:No; Output Current Max:20mA; Power Dissipation, Pd:320mW; Supply Voltage Min:1.2V ;RoHS Compliant: No

IC, VOLTAGE DET, MICROPRO SUPERV; Threshold Voltage:3.08V; No. of Supervisors / Monitors:1; Supply Voltage Range:1.2V to 5.5V; Reset Type:Active-Low; Supply Current:15µA; Delay Time:240ms; Digital IC Case Style:SOT-23; No. of Pins:3; Operating Temperature Range:-40°C to +105°C; SVHC:No SVHC (20-Jun-2011); Output Current Max:20mA; Package / Case:SOT-23; Power Dissipation Pd:320mW; Power Dissipation Pd:320mW; Supply Voltage Max:5.5V; Supply Voltage Min:1.2V; Termination Type:SMD; Turn On Threshold Voltage:3.08V

The LM809/810 microprocessor 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, power-down and brown-out conditions. The function of the LM809/810 is to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240ms 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 5V, 3.3V, and 3V supply voltages. With a low supply current of only 15uA, the LM809/810 are ideal for use in portable equipment. The LM809/LM810 are available in the 3-pin SOT23 package and in the 6-Lead LLP package.