CAT705 CATALYST | Alldatasheet
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CAT705, CAT706, CAT813 © Catalyst Semiconductor, Inc. 1 Doc. No. MD-3030, Rev. A Characteristics subject to change without notice µP Supervisory Circuits
FEATURES
Accurate under voltage system monitoring RESET¯¯¯¯¯¯ guaranteed valid for VCC = 1.0V 6µA supply current 200ms RESET pulse width Watchdog timer function 1.6 sec timeout Brownout detection system reset for use with 3.0, 3.6, and 5.0 volt systems Pin and function compatible with the MAX705/706/813L products Operating Range from -40°C to +85°C Available in SOIC 8-lead and MSOP 8-lead packages
APPLICATIONS
Microprocessor and microcontroller based systems Intelligent instruments Control systems Critical µP monitors Portable equipment
DESCRIPTION
The CAT705, CAT706, and CAT813 provide reset and monitoring functions for the electronic systems. Each device monitors the system voltage and maintains a reset output until that vo ltage reaches the device’s specified trip value and then maintains the reset output active condition until the device’s internal timer allows the system power supply to stabilize. The CAT705, CAT706, and CAT813 have a watchdog input which can be used to monitor a system signal and cause a reset to be issued if the signal fails to change state prior to a timeout condition. The CAT705 and CAT706 provide a manual RESET¯¯¯¯¯¯ input which initiate reset if pulled low. The CAT705, CAT706 and CAT813 provide a RESET output which is low for the CAT705 and CAT706, but high for the CAT813. There is a secondary supply monitor included for power-fail warning (pin PFI). The CAT706 has a threshold voltage 4.40V. The CAT705/ CAT813 have a threshold voltage of 4.65V. For Ordering Information details, see page 13. PIN CONFIGURATION SOIC 8-Lead WDO WDI RESET7 MR VCC PFI PFO5 GND (RESET for CAT813) MSOP 8-Lead WDI PFI PFO7 RESET (RESET for CAT813) WDO VCC GND5 MR PIN FUNCTIONS Pin Name Function MR¯¯¯ Manual Reset input VCC Power Supply GND Ground PFI Power Fail voltage monitor Input. PFO¯¯¯¯ Power Fail Output WDI Watchdog Timer Input RESET¯¯¯¯¯¯ CMOS Push-Pull Active Low Reset Output (CAT705 & CAT706) RESET CMOS Push-Pull Active High Reset Output (CAT813) WDO¯¯¯¯¯ Watchdog Timer Output
CAT705, CAT706, CAT813 Doc. No. MD-3030, Rev. A 2 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice BLOCK DIAGRAM CAT705 @ 4.65 V x x x @ 1.25 V CAT706 @ 4.40 V x x x @ 1.25 V CAT813 @ 4.65 V x x x @ 1.25 V VCC RESET (RESET for CAT813) WDO PFO RESET CONTROLLER TIMER 52kΩ MR 4.65/4.40V 250µA VCC 1.25V WATCHDOG TIMER WATCHDOG TRANSITION DETECTION PFI WDI
CAT705, CAT706, CAT813 © Catalyst Semiconductor, Inc. 3 Doc. No. MD-3030, Rev. A Characteristics subject to change without notice ABSOLUTE MAXIMUM RATINGS(1) Parameters Ratings Units Supply Voltage 6.5 V All other pins -0.3 to (V CC + 0.3) V Output Current RST, RST¯¯¯¯,WDO¯¯¯¯ 20 mA Continuous Power Dissipations (TA = +70ºC) SOIC 8-lead (derate 5.9mW/ºC above +70ºC) 471 MSOP 8-lead (derate 4.1mW/ºC above +70ºC) 330 mW Storage Temperature -65 to 150 ºC Lead Soldering (10 seconds max) +300 ºC ESD Rating: Human Body Model 2000 V ESD Rating: Machine Model 200 V RECOMMENDED OPERATING CONDITIONS Parameter Range Units VCC (TA = -40ºC to +85ºC) 1.2 to 5.5 V All Other Pins -0.1 to (V CC + 0.1) V Ambient Temperature -40 to +85 ºC Notes: (1) Stresses above those listed under “Absolut e Maximum Ratings” may cause permanent dam age to the device. These are stress rat ings only, and functional operation of the device at these or any ot her conditions outside of those lis ted in the operational sectio ns of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.
CAT705, CAT706, CAT813 Doc. No. MD-3030 Rev. A 4 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice ELECTRICAL OPERATING CHARACTERISTICS VCC = 4.5V to 5.5V for CAT705, CAT706, CAT813 versions; VCC = 3.0V to 3.6V for the CAT706 R/S/T versions, -40ºC ≤ TA ≤ +85ºC unless otherwise noted. Typical values at TA = 25ºC and VCC = 5V for CAT705, CAT706 versions; VCC = 3.3V for the CAT706 T/S versions; VCC = 3.0V for the CAT706 R version.(1) Symbol Parameter Conditions Min Typ Max Units CAT705 CAT706 CAT813 6 17 µA ICC Supply Current CAT706 (R/S/T Versions) 4 12 µA CAT705 & CAT813 at -40ºC ≤ TA ≤ +85ºC 4.50 4.65 4.75 V CAT706 at -40ºC ≤ TA ≤ +85ºC 4.25 4.40 4.50 V CAT706T at -40ºC ≤ TA ≤ +85ºC 3.00 3.08 3.15 V CAT706S at -40ºC ≤ TA ≤ +85ºC 2.85 2.93 3.00 V VRST Reset Threshold CAT706R at -40ºC ≤ TA ≤ +85ºC 2.55 2.63 2.70 V Reset Threshold Tempco 40 ppm/ºC CAT705 & CAT813 10 mV Reset Threshold Hysteresis CAT706 5 mV tRD VCC to Reset Delay(2) V CC = VTH to (VTH - 100mV) 20 µs tRP Reset Active Timeout Period 140 200 400 ms CAT705 & CAT706, VCC = VRST max, ISOURCE = -120µA VCC - 1.5V Voltage CAT705 & CAT706, VCC = VRST max, ISOURCE = -30µA 0.8 x VCC CAT705 & CAT706, VCC = VRST min, ISINK = 3.2mA 0.4 Voltage CAT705 &CAT706, VCC = 1.2V ISINK = 100µA 0.3 V CAT813, VCC = VRST max, ISOURCE = -120µA VCC - 1.5V VOH RESET Output High Voltage CAT813, VCC = VRST max, ISOURCE = -30µA 0.8 x VCC V CAT813, VCC = VRST min, ISINK = 3.2mA 0.4 VOL RESET Output Low Voltage CAT813, VCC = 1.2V ISINK = 100µA 0.3 V Notes: (1) Over-temperature limits are guaranteed by design and not production tested. (2) The RESET short-circuit current is the maximum pull-up current when reset is driven low by a bidirectional output.
CAT705, CAT706, CAT813 © Catalyst Semiconductor, Inc. 5 Doc. No. MD-3030, Rev. A Characteristics subject to change without notice ELECTRICAL OPERATING CHARACTERISTICS (continued) VCC = 4.50V to 5.5V for CAT705, CAT706 & CAT813 versions; VCC = 3.0V to 3.6V for the CAT706 R/S/T version, -40°C ≤ TA ≤ +85°C unless otherwise noted. Typical values at TA = 25°C and VCC = 5V for CAT705, CAT706, & CAT813 versions; VCC = 3.3V for the CAT706 T/S versions; VCC = 3.0V for the CAT706 R version. Symbol Parameter Conditions Min Typ Max Units WATCHDOG INPUT (CAT705, CAT706 & CAT813) tWD Watchdog Timeout Period 1.00 1.60 2.25 s tWDI WDI Pulse Width V IL = 0.4V, VIH = 0.8 x VCC 50 ns VIL 0.3 x V CC VIH WDI Input Voltage(3) 0.7 x VCC V WDI = V CC, Time Average 50 150 WDI Input Current(4) WDI = 0V, Time Average -150 -50 µA ISOURCE = -800µA V CC – 1.5 V CC – 0.25 WDO Output Voltage ISINK = 1.2mA 0.1 0.4 V MANUAL RESET INPUT(CAT705, CAT706 & CAT813) VIL 0.3 x V CC VIH MR¯¯¯ Input Voltage 0.7 x VCC V MR¯¯¯ Pull-up Current MR ¯¯¯ = 0V 40 70 140 µA tPB MR¯¯¯ Pulse Width 1 µs tPDLY MR¯¯¯ low to Reset Delay(5) 5 µs PFI Input Threshold V CC = 5V 1.2 1.25 1.3 V PFI Input Current -25 0.01 25 nA I SOURCE = -800µA V CC - 1.5V V PFO¯¯¯¯ Output Voltage ISINK = 3.2mA 0.4 V Notes: (3) WDI is internally serviced within the watchdog period if WDI is left open. (4) The WDI input current is specified as an average input current when the WDI input is driven high or low. The WDI input if connected to a three-stated output device can be disabled in the tristate mode as long as the l eakage current is less than 10µA and a maximum capacitance of less than 200pF. To clock the WDI input in the active mode the drive device must be able to source or sink at least 200µA when active. (5) RESET¯¯¯¯¯¯ for CAT705 & CAT706 & RESET for CAT813.
CAT705, CAT706, CAT813 Doc. No. MD-3030 Rev. A 6 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice TYPICAL ELECTRICAL OPERATING CHARACTERISTICS TABLES VCC Supply Current vs. Temperature Normalized Reset Threshold Voltage vs. Temperature -40 -20 0 20 40 60 80 100 120 T EM PERAT URE ( ºC) SUPPLY CURRENT (µA 0.94 0.96 0.98 1.00 1.02 1.04 1.06 -40 -20 0 20 40 60 80 100 T EM PERA T URE ( ºC ) NORMALIZED RESET THRESHOLD (V) TEMPERATURE (°C)
CAT705, CAT706, CAT813 © Catalyst Semiconductor, Inc. 11 Doc. No. MD-3030, Rev. A Characteristics subject to change without notice PACKAGE OUTLINE DRAWING MSOP 8-Lead 3.0 x 3.0mm (Z) (1) (2) Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-187 For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. θ E1E A1 e b D c A TOP VIEW SIDE VIEW END VIEW L DETAIL A DETAIL A SYMBOL MIN NOM MAX A1 . 1 0 A1 0.05 0.10 0.15 A2 0.75 0.85 0.95 b 0.22 0.38 c 0.13 0.23 D 2.90 3.00 3.10 E 4.80 4.90 5.00 E1 2.90 3.00 3.10 e 0.65 BSC L 0.40 0.60 0.80 L1 0.95 REF L2 0.25 BSC θ 0º 6º
CAT705, CAT706, CAT813 Doc. No. MD-3030 Rev. A 12 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice SOIC 8-Lead 150 mils (V) (1) (2) Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-012. For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. E1 E A h θ L c e b D PIN # 1 IDENTIFICATION TOP VIEW SIDE VIEW END VIEW A 1.35 1.75 A1 0.10 0.25 b 0.33 0.51 c 0.19 0.25 D 4.80 5.00 E 5.80 6.20 E1 3.80 4.00 e 1.27 BSC h 0.25 0.50 L 0.40 1.27 θ 0º 8º SYMBOL MIN NOM MAX
CAT705, CAT706, CAT813 © Catalyst Semiconductor, Inc. 13 Doc. No. MD-3030, Rev. A Characteristics subject to change without notice EXAMPLE OF ORDERING INFORMATION(1) TOP MARKING INFORMATION (FOR ALL THRESHOLDS) NiPdAu Finish (-G) Device # Package Top Marking CAT705 MSOP ABRT CAT706 MSOP ABRT CAT813 MSOP ABRS ORDERING PART NUMBER Order Part Number Threshold Voltage CAT705VI-G CAT705ZI-G 4.65V CAT706VI-G CAT706ZI-G 4.40V CAT706RVI-G CAT706RZI-G 2.63 CAT706SVI-G CAT706SZI-G 2.93 CAT706TVI-G CAT706TZI-G 3.08 CAT813VI-G CAT813ZI-G 4.65V Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu. (3) This device used in the above example is a CAT706RVI -GT3 (2.63V, SOIC 8-Lead, Industrial Temperature, NiPdAu, Tape & Reel , 3,000/reel) (4) Contact factory for package availability. Prefix Device # Suffix CAT 706 R V I - G T3 Optional Company ID Package V: SOIC 8-Lead Z: MSOP 8-Lead Temperature Range I = Industrial (-40ºC to 85ºC) Reset Threshold Voltage Blank: See Ordering Part Number table T: 3.08V S: 2.93V R: 2.63V Product Number 705 706 813 Tape & Reel T: Tape & Reel 3: 3000/Reel Lead Finish G:NiPdAu
REVISION HISTORY
Date Rev. Reason 01/21/08 A Initial Issue Catalyst Semiconductor, Inc. Corporate Headquarters
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Santa Clara, CA 95054 Phone: 408.542.1000 Document No: MD-3030 Fax: 408.542.1200 Revision: A www.catsemi.com Issue date: 01/21/08 Copyrights, Trademarks and Patents © Catalyst Semiconductor, Inc. Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: Adaptive Analog™, Beyond Memory™, DPP™, EZDim™, LDD™, MiniPot™, Quad-Mode™ and Quant um Charge Programmable™ Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUAR ANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRO DUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARIS ING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES. Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgica l implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconduct or product could create a situation where personal injury or death may occur. Catalyst Semiconductor reserves the right to make changes to or discontinue any produ ct or service descr ibed herein without not ice. Products with data sheets labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale. Catalyst Semiconductor advises customers to obtain the current version of the rele vant product informati on before placing order s. Circuit diagrams illustrate typical semiconductor applications and may not be complete.