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TS831 Dataheets PDF



Part Number TS831
Manufacturers ST Microelectronics
Logo ST Microelectronics
Description MICROPOWER VOLTAGE SUPERVISOR
Datasheet TS831 DatasheetTS831 Datasheet (PDF)

TS831 MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE LOW s ULTRA LOW POWER CONSUMPTION : 12µA maximum s PRECISION RESET THRESHOLD s THRESHOLD VOLTAGE: 4.33V typ. FOR TS831-5 4.50V typ. FOR TS831-4 2.71V typ. FOR TS831-3 s GUARANTEED RESET OPERATION FOR VCC DOWN TO 1V s OPEN DRAIN OUTPUT COMPARATOR s FAST RESPONSE TIME : 20µs FOR A 10mV OVERDRIVE s INTERNAL BUILT-IN HYSTERESIS s PIN TO PIN COMPATIBLE WITH MC33064 AND MC33164 DESCRIPTION The TS831 is an ultra low power integrated circuit incorporati.

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TS831 MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE LOW s ULTRA LOW POWER CONSUMPTION : 12µA maximum s PRECISION RESET THRESHOLD s THRESHOLD VOLTAGE: 4.33V typ. FOR TS831-5 4.50V typ. FOR TS831-4 2.71V typ. FOR TS831-3 s GUARANTEED RESET OPERATION FOR VCC DOWN TO 1V s OPEN DRAIN OUTPUT COMPARATOR s FAST RESPONSE TIME : 20µs FOR A 10mV OVERDRIVE s INTERNAL BUILT-IN HYSTERESIS s PIN TO PIN COMPATIBLE WITH MC33064 AND MC33164 DESCRIPTION The TS831 is an ultra low power integrated circuit incorporating a high stability band-gap voltage reference and a comparator with an open drain output. The threshold voltage is set at 4.33V for TS831-5, 4.5V for TS831-4 and 2.71V for TS831-3 by internal thermally matched resistors. The comparator exhibits a 20µs response (with 10mV overdrive) and has an open drain output active when input voltage is lower than the threshold. An internal hysteresis, 100mV for TS831-4 / TS831-5 and 60mV for TS831-3, increases the comparator’s noise margin and prevents false reset operation. APPLICATION s Power-on reset generator for microcontroller s Power failure detector ORDER CODE Part Number TS831-5I TS831-4I TS831-3I Temperature Range -40, +125°C Package DZP ••• ••• ••• Z= TO92 Plastic package D = Small Outline Package (SO) - also available in Tape & Reel (DT) P = Thin Shrink Small Outline Package (TSSOP) - only available in Tape & Reel (PT) D SO8 (Plastic Micropackage) Z TO92 (Plastic Package) P TSSOP8 (Thin Shrink Small Outline Package) PIN CONNECTIONS (top view) SO8-TSSOP8 TO92 November 2001 1/11 TS831 ABSOLUTE MAXIMUM RATINGS Symbol Parameter VCC Supply Voltage 1) VOUT Output Voltage IOUT Output Sink Current TS831-5 and TS831-4 TS831-3 PD Power Dissipation 2) TO92 SO8 TSSOP8 IF Clamp Diode Forward Current, pin 1 to pin 2 3) TSTG Storage Temperature 1. All voltages values, except differential voltage are with respect to network ground terminal. 2. Tj = 150°C, Tamb = 25oC with Rthja = 200oC/W for TO-92 package Rthja = 175oC/W for SO8 package Rthja = 200oC/W for TSSOP8 package 3. Maximum package power dissipation limits must be observed. Value 7 -0.3 to Vcc + 0.3 20 5 625 700 625 100 -65 to +150 OPERATING CONDITIONS Symbol Parameter VCC Supply Voltage TOPER Operating Free Air Temperature Range Value 1 to 5.5 -40 to +125 TS831-5 ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Threshold Voltage with VCC Increasing VTHI -40°C ≤ Tamb ≤ +85°C -40°C ≤ Tamb ≤ +125°C 4.33 4.11 4.11 VTHD Threshold Voltage with VCC Decreasing -40°C ≤ Tamb ≤ +85°C -40°C ≤ Tamb ≤ +125°C 4.21 4.10 4.06 VHYS Hysteresis Voltage 50 100 ICC Current Consumption VCC = 5V Low Level Output Voltage VCC = 4V, IOL = 8mA 450 VOL -40°C ≤ Tamb ≤ +85°C -40°C ≤ Tamb ≤ +125°C IOH High Level Output Current -40°C ≤ Tamb ≤ +125°C VCC = 5V 2 TPHL Response Time High to Low RL = 10kΩ, CL = 15pF, VCC = VTHD -10mV 20 Note : Limits are 100% production tested at 25°C. Lim.


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