V6309 Datasheet | EM Microelectronic

Features n Precision monitoring of 3 V, 3.3 V and 5 V power supply voltages n Fully specified over the temperature range of -40 to + 125 o C n 140 ms minimum power-on reset pulse width: RESET output for V6309 RESET output for V6319 n 16 µA supply current n Garanteed RESET/RESET valid to VDD = 1 V n Power supply transient immunity n No external ponents needed n 3-pin SOT-23 package n Fully patible with MAX809/MAX810 and AMD809/AMD810 Typical Operating Configuration Description The V6309 and V6319 are microprocessor supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external ponents and adjustments when used with 5 V powered or 3 V powered circuits. These circuits perform a single function: they assert a reset signal whenever the VDD supply voltage declines below a preset threshold, keeping it asserted for at least 140 ms after VDD has risen above the reset threshold. The only difference between the two devices is that the V6309 has an active-low RESET output (which is guaranteed to be in the correct state for VDD down to 1 V), while the V6319 has an active-high RESET output. The reset parator is designed to ignore fast transients on VDD. Reset thresholds suitable for operation with a variety of supply voltages are available. Low supply current makes the V6309/V6319 ideal for use in portable equipment. The V6309/V6319 e in a 3-pin SOT-23 package Applications n puters n Controllers n Intelligent instruments n Critical µP and µC power monitoring n Portable/battery-powered equipment Pin Assignment Fig. 1 Fig. 2 ® V6309/V6319 Absolute Maximum Ratings Parameter Symbol Conditions Terminal voltage to VSS Min. voltage at Reset or Reset Vmin Max. voltage at Reset or Reset Vmax Input current at VDD Imin Output current at Reset or Reset Imax Rate of rise at VDD t R Continuous power dissipation Pmax at TA = +70 °C for SOT-23 (>70 °C derate by 4 m W...