ZSM530 Datasheet | Zetex Semiconductors

DESCRIPTION The ZSM530 is a three terminal under v o l t a g e mo ni t or ci r cui t f or us e i n microprocessor systems. The threshold voltage of the device has been set to 4.3 volts making it ideal for 5 volt circuits. Included in the device is a precise voltage reference and a parator with built in hysteresis to prevent erratic operation. The ZSM530 features an open collector output capable of sinking at least l0m A which only requires a single external resistor to interface to following circuits. Operation of the device is guaranteed from one volt upwards, from this level to the device threshold voltage the output is held low providing a power on reset function. Should the supply voltage, once established, at any time drop below the threshold level then the output again will pull low. The device is available in a TO92 package for through hole applications as well as SO8 and SOT223 for surface mount requirements. FEATURES - - - - - - - - - - - - - - - SO8, SOT223 and TO92 packages Power on reset generator Automatic reset generation Low standby current Guaranteed operation from 1 volt Wide supply voltage range Internal clamp diode to discharge delay capacitor 4.3 volt threshold for 5 volt logic 20m V hysteresis prevents erratic operation APPLICATIONS Microprocessor systems puters puter peripherals Instrumentation Automotive Battery powered equipment SCHEMATIC DIAGRAM 4-354 ABSOLUTE MAXIMUM RATING Input Supply Voltage Offstate Output Voltage Onstate Output Sink Current(Note 1) Clamp Diode Forward Current(Note 1) Operating Junction Temperature Operating Temperature Storage Temperature -1 to 10V 10V Internally limited 100m A 150°C -40 to 85°C -55 to 150°C Power Dissipation TO92 SOT223 SO8 780m W 2W(Note 2) 780m W(Note 2) TEST CONDITIONS (Tamb=25°C for typical values, Tamb=-40 to 85°C for min/max values (Note3)) PARATOR PARAMETER Threshold Voltage High state output (Vcc increasing) Threshold Voltage Low state output (Vcc decreasing) Hysteresis...