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PST7046
IC for System Reset PST70XX MITSUMI IC for System Reset Monolithic IC PST70XX Series May 21, 2002 Outline This IC is a low-reset type system reset IC and in a variety of CPU systems and other logic systems, to detect supply voltage and reset the system accurately when the power is turned on or interrupted. It includes a high-precision voltage detection function with ultra-low current consumption and is ideal for voltage check circuits for products using a battery. ue on tin High-precision voltage detection Vs±2% max. Ultra-low current consumption ICCH=2µA typ. ICCL=3µA typ. Low operating limit voltage 0.65V typ. Hysteresis voltage provided for detection voltage 50mV typ. Large output current during power-on 30mA typ. Detection voltage can be selected as desired within a range of 1.9 to 4.6V by 0.1V step, as indicated below. PST70XX Detection voltage value (Example: for 4.6V ....... PST7046) di sc 1. 2. 3. 4. 5. 6. d Features be Packages o MMP-3A (PST70 M) TO-92A (PST70 ) The box represents a rank of detection voltage. Reset circuits for microcomputers, CPUs and MPUs Reset circuits for logic circuits Battery voltage check circuits Back-up power supply switching circuits Level detection circuits Pr od 1. 2. 3. 4. 5. uc t Applications st * Pin Assignment 1 2 2 3 TO-92A VOUT 1 3 2 MMP-3A (TOP VIEW) 1 VCC 2 GND 3 1 VCC GND 3 VOUT
MITSUMI
ミツミ電機株式会社
日本
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