EM6352 Datasheet | EM Microelectronic

Description The EM6352 is an ultra-low current voltage detector available in a large variety of configurations and very small packages for maximum flexibility in all end-applications up to 125°C and using power supplies between 1.5V and 5.5V. This circuit monitors the supply voltage of any electronic system, and generates the appropriate reset signal without a delay time. The threshold defines the minimum allowed voltage which guarantees the good functionality of the system. As long as VDD stays above the threshold voltage, the output stays inactive. If VDD drops below VTH, the output goes active. The output is guaranteed to be in the correct state for VDD down to 0.8V. There are 12 reset threshold voltages starting as low as 1.31V and up to 4.63V. The EM6352 features three output types: active-low push-pull, active-low open-drain and active-high push-pull. Small SOT23 package as well as ultra-low supply current of 2.7μA makes the EM6352 an ideal choice for portable and battery-operated devices. Typical Application VDD RESET - REXT for open-drain version only - VDD RESET MPU, DSP Pin Configuration (top view) RESET (RESET) VDD 2 GND 3 5 NC 4 NC SOT23-5L RESET 1 (RESET) GND 2 3 VDD SOT23-3L Features  Ultra-low supply current of 2.7μA (VDD=3.3V)  Operating temperature range: -40°C to +125°C  1.5% reset threshold accuracy  12 reset threshold voltages VTH: 4.63V, 4.4V, 3.08V, 2.93V, 2.63V, 2.26V, 2.2V, 1.8V, 1.66V, 1.57V, 1.38V, 1.31V  3 reset output options: Active-low RESET push-pull Active-low RESET open-drain Active-high RESET push-pull  No external ponents  Immune to short negative VDD transients  Guaranteed Reset valid down to 0.8V  Threshold hysteresis: 2.1% of VTH  Very small SOT23-5L, SOT23-3L packages Applications  Mobile and cordless phones  Modems  Printers  TV, VCR, Video sets  GPS  Toys  Basestations  Ni Cd cell battery Block Diagram Voltage Reference - + RESET (RESET) Pin...