CAT809, CAT810 3-Pin Microprocessor Power Supply Supervisors FEATURES DESCRIPTION Precision monitoring of The CAT809 and CAT810 are P supervisory circuits +5.0 V ( 5%, 10%, 20%), that monitor power supplies in digital systems. The +3.3 V ( 5%, 10%), CAT809 and CAT810 are direct replacements for the +3.0 V ( 10%) and MAX809 and MAX810 in applications operating over the +2.5 V ( 5%) power supplies industrial temperature range. Offered in two output configurations: These devices generate a reset signal, which is asserted - CAT809: Active LOW reset while the power supply voltage is below a preset threshold - CAT810: Active HIGH reset level and for at least 140 ms after the power supply level Direct replacements for the MAX809 and has risen above that level. The underlying floating gate 2(TM) MAX810 in applications operating over the technology, AE used by Catalyst Semiconductor, industrial temperature range makes it possible to offer any custom reset threshold value. Seven industry standard threshold levels are Reset valid down to V = 1.0 V CC offered to support +5.0 V, +3.3 V, +3.0 V and +2.5 V 6 A power supply current systems. Power supply transient immunity The CAT809 features a RESET push-pull output (active Available in SOT-23 and SC70 packages with LOW) and the CAT810 features a RESET push-pull Sn or NiPdAu GREEN lead finish output (active HIGH). Industrial temperature range: -40C to +85C Fast transients on the power supply are ignored and the output is guaranteed to be in the correct state at V APPLICATIONS cc levels as low as 1.0 V. Computers The CAT809/810 are fully specified over the industrial Servers temperature range (-40C to 85C) and are available in Laptops compact 3-pin SOT23 and SC70 packages. Cable modems Wireless communications Embedded control systems White goods Power meters Intelligent instruments PDAs and handheld equipment PIN CONFIGURATION THRESHOLD SUFFIX SELECTOR Nominal Threshold Threshold Suffix Voltage Designation GND 1 4.63V L CAT809 3 V CC (CAT810) 4.38V M 2 RESET 4.00V J (RESET) 3.08V T 3-Lead SOT23 2.93V S 3-Lead SC70 2.63V R 2.32V Z 2005 by Catalyst Semiconductor, Inc. Doc. No. 3004, Rev. Q 1 Characteristics subject to change without noticeCAT809, CAT810 ORDERING INFORMATION Prefix Device Suffix GT10 CAT S 809 TBI Company ID Trip Level Package Type L: 4.63V EUR: SOT-23 Device Type M: 4.38V TBI: SOT-23 Green 809: Push-Pull / Active Low Output J: 4.00V EXR: SC70 SDI: SC70 Green 810: Push-Pull / Active High Output T: 3.08V S: 2.93V R: 2.63V Parts per Reel Z: 2.32V T3: 3K units T10: 10K units GT3: 3K units (NiPdAu Lead Finish)* GT10: 10K units (NiPdAu Lead Finish)* The device shown in the examples (CAT809STBI-GT10) has an Active Low, Push-Pull output a trip level of 2.85V to 3.00V and is provided in the Green SOT-23 package with a NiPdAu lead finish on tape and reel with 10,000 units. * NiPdAu is a Lead Finish Option on the Green Packages only. Unless indicated with the G, green packages are shipped with a Sn Matte Lead Finish. TOP MARKING SOT-23 Green SOT-23 Green SC70 Green Sn SC70 Green Parts and Sn Matte Lead NiPdAu Lead Matte Lead NiPdAu Lead (1) (1) (1) (2) (1) (1) (1) (2) T3hreshold SOT2 Finish Finish SC70 Finish Finsish CMAT809L AMAY DBY F A GA CMAT809MAMBYD CY F B GB CMAT809JCMWYC AY F G GG CMAT809T AMCYD FY NRYM F E GE NR CMAT809S AMDYD EY F D GD CMAT809R AMFYD DY F C GC CMAT809Z CDFYG YM F F GF CMAT810L AMGY CKY F H GH CMAT810MAMHYC LY F J GJ CMAT810J AMIYC JY F P GP CMAT810T AMJYC PY NSYM F M GM NS CMAT810S AMKYC NY F L GL CMAT810R AMLYC MY F K GK CMAT810Z CMGYC RY F N GN Notes 1) The YM in the SOT-23 package marking indicates the Year and Month of production and the in the SC70 package marking indicates the assembly location. 2) All NiPdAu devices will be marked to indicate product type and package. Threshold and full part numbers will be provided on box and reel labels as well as all Shipping documents. 2005 by Catalyst Semiconductor, Inc. Doc. No. 3004, Rev. Q 2 Characteristics subject to change without notice