ELM9711NBA-S

ELM97xxxxA ■ GENERAL DESCRIPTION VOLTAGE DETECTOR ELM 97xxxxA Series is a CMOS voltage detector IC for battery-operated portable devices. It consists of a very low-power-consumption reference voltage source, a comparator, an output driver, a hysteresis circuit, and detection voltage setting resistors. Output logic is positive, therefore output level is low when VDD is lower than detection voltage. It can be used as a reset controller in microcomputer-based systems. And it can be widely applied to the devices, such as battery checkers, switching circuit of back-up power source, power failure detectors, etc. Two output styles are available, N-ch opendrain and CMOS output. It is available in SOT-89 and SOT-23. ■ FEATURES ・ Low power operation ・ Low voltage operation ・ High accuracy of detection voltage ・ Low temperature coefficient ・ Very small package : TYP. 1.0 μ A (VDD = 1.5V) : Reset operation assured at 0.8V : ± 2.5% : TYP. -300ppm/℃ (Detection voltage ＜ 2.0V) : TYP. -100ppm/℃ (Detection voltage ≧ 2.0V) : SOT-89, SOT-23 ■ APPLICATION ・ Reset for microcomputer ・ Battery checker ・ Power failure detector ・ Switching of back-up power source ■ PIN CONFIGURATION SOT-89 3 SOT-23 1 2 3 1 2 ( TOP VIEW ) ( TOP VIEW ) Pin No. 1 2 3 Pin Name OUT VDD VSS Pin No. 1 2 3 Pin Name OUT VSS VDD 147 VOLTAGE DETECTOR ELM97xxxxA ■ SELECTION GUIDE Symbol Ex a, b Detection Voltage C: N: A: B: A: 09 : VDETN = 0.9V 27 : VDETN = 2.7V 45 : VDETN = 4.5V CMOS Output N-ch Opendrain Output...