ELM73

ELM73xxxxxA CMOS Voltage detector with delay circuit and Manual Reset function ■General description ELM73xxxxxA is CMOS voltage detector IC with delay function; delay time is adjustable by external capacitor. It operates with very low current consumption; 260nA(typ.). The type with Manual Reset function is also available in ELM73xxxBxA series; reset condition can be manually asserted at any time. There are two output forms available; N-ch opendrain and CMOS output. The output logic is positive, therefore, the output becomes low level when VDD is lower than detection voltage. The standard detection voltages are 2.2V, 2.7V, 3.0V and 4.0V; ELM73 series can also be made as semi-custom IC within the range of 1.4~5.0V by 0.1V step. ■Features Detection voltage range : 1.4V to 5.0V (by 0.1V step) Low power operation : Typ.260nA(Vdd=VdetN+1V) Accuracy of detection voltage : ±30mV (VdetN<2.5V) ±1.2% (VdetN≥2.5V) Accuracy of delay time : Typ.15% (ExtC=4.7nF) Hysteresis voltage : Typ.VdetN×1.04 Manual reset input : MR pin (ELM73xxxBxA only, Built-in pull-up resistor) Package : SC-82AB(SOT-343), SC-70-5(SOT-353), SOT-25 ■Application Reset for microcomputers Voltage power shortage detectors Switch of back up power source Battery checkers ■Maximum absolute ratings Parameter Power supply voltage Symbol Vdd Apply voltage to OUT pin Vout Apply voltage to ExtC pin Apply voltage to MR pin Output current VExtC Vmr Iout Power dissipation Pd Operating...