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CAT705, CAT706, CAT813 Characteristics subject to change without notice µP Supervisory Circuits
FEATURES
n Reset guaranteed valid for 1.0 V VCC n 6µA supply current n 200ms Reset pulse width n Watchdog timer function 1.6s timeout n Accurate brownout detection reset in 3.0, 3.6, and 5.0 volt systems n Secondary low supply monitoring on PFI input n Pin and function compatible with the MAX705/MAX706/MAX813L products n Operating Range from -40°C to +85°C n RoHS Compliant SOIC 8-lead and MSOP 8-lead packages
APPLICATIONS
n Microprocessor and microcontroller based systems n Instrument and control systems n 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 voltage reaches the device’s specified t rip value and then maintains the reset output active condition until the device’s internal timer allows the system power supply to stabilize. The devices have a watchdog input which can be used to monitor a system signal and causes WDO¯¯¯¯ to go low if the signal fails to change state prior to a timeout condition. The supervisory circuits provide a MR¯¯¯ input which initiates a reset if pulled low. The CAT705 and CAT706 provide an active low RESET¯¯¯¯¯¯ output. The CAT813 provides an active high RESET output. There is a secondary supply monitor (PFI) included for power-fail warning. 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 Characteristics subject to change without notice BLOCK DIAGRAM CAT705 @ 4.65 V x x x @ 1.25 V CAT706 x 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 VRST 70µA VCC 1.25V WATCHDOG TIMER WATCHDOG TRANSITION DETECTION PFI WDI
CAT705, CAT706, CAT813 Characteristics subject to change without notice ABSOLUTE MAXIMUM RATINGS(1) Parameters Ratings Units Supply Voltage 6.5 V All other pins -0.3 to (VCC + 0.3) V Continuous Power Dissipations (TA = +70ºC) mW SOIC 8-lead (derate 5.9mW/ºC above +70ºC) 471 MSOP 8-lead (derate 4.1mW/ºC above +70ºC) 330 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) 1.0 to 5.5 V All Other Pins -0.1 to (VCC + 0.1) V Ambient Temperature -40 to +85 ºC Notes: (1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sect ions of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.
CAT705, CAT706, CAT813 Characteristics subject to change without notice ELECTRICAL OPERATING CHARACTERISTICS Typical values at TA = 25ºC and VCC = 5V for CAT705, CAT706 and CAT813 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 ICC Supply Current CAT705 CAT706 CAT813 6 17 µA CAT706 (R/S/T Versions) 4 12 µA VRST Reset Threshold 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 CAT706R at -40ºC ≤ TA ≤ +85ºC 2.55 2.63 2.70 V Reset Threshold Tempco (1) 40 ppm/ºC Reset Threshold Hysteresis (1) CAT705 & CAT813 10 mV CAT706 5 mV tRD VCC to Reset Delay(2) VCC = VTH to (VTH - 100mV) 20 µs tRP Reset Active Timeout Period 140 200 400 ms Voltage CAT705 & CAT706, VCC = VRST max, ISOURCE = -120µA VCC - 1.5V V CAT705 & CAT706, VCC = VRST max, ISOURCE = -30µA 0.8 x VCC Voltage CAT705 & CAT706, VCC = VRST min, ISINK = 3.2mA 0.4 CAT705 &CAT706, VCC = 1.2V ISINK = 100µA 0.3 VOH RESET Output High Voltage CAT813, VCC = VRST max, ISOURCE = -120µA VCC - 1.5V V CAT813, VCC = VRST max, ISOURCE = -30µA 0.8 x VCC VOL RESET Output Low Voltage CAT813, VCC = VRST min, ISINK = 3.2mA 0.4 V CAT813, VCC = 1.2V ISINK = 100µA 0.3 Notes: (1) 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 Characteristics subject to change without notice ELECTRICAL OPERATING CHARACTERISTICS (continued) Typical values at TA = 25°C and VCC = 5V for CAT705, CAT706, and 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 tWD Watchdog Timeout Period 1.00 1.6 2.25 s tWP WDI Pulse Width VIL = 0.4 V, VIH = 0.8 x VCC 50 ns VIL WDI Input Voltage(3) 0.3 x VCC V VIH 0.7 x VCC WDI Input Current(4) WDI = VCC, Time Average 50 150 µA WDI = 0V, Time Average -150 -50 VW_OH WDO Output Voltage VRST (max) < VCC < 3.6 V ISOURCE = -500 µA 0.8 x VCC V 4.5 V < VCC < 5.5 V, ISOURCE = -800 µA VCC – 1.5 VCC – 0.25 VW_OL VRST (max) < VCC < 3.6 V, ISINK = +500 µA 0.3 4.5 V < VCC < 5.5 V, ISINK = 1.2 mA 0.1 0.4 MANUAL RESET INPUT VIL MR¯¯¯ Input Voltage 0.3 x VCC V VIH 0.7 x VCC MR¯¯¯ Pull-up Current MR¯¯¯ = 0 V 40 70 140 µA tPB MR¯¯¯ Pulse Width 1 µs tPDLY MR¯¯¯ low to Reset Delay(5) 5 µs POWER-FAIL INPUT PFI Input Threshold VCC = 5 V 1.2 1.25 1.3 V PFI Input Current -25 0.01 25 nA VP_OH PFO¯¯¯¯ Output Voltage VRST (max) < VCC < 3.6 V, ISOURCE = -500 µA 0.8 x VCC V 4.5 V < VCC < 5.5 V, ISOURCE = -800 µA VCC - 1.5V 0.4 VP_OL VRST (max) < VCC < 3.6 V, ISINK = +1.2 mA 0.3 4.5 V < VCC < 5.5 V, ISINK = 3.2 mA 0.4 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 leakage 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 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 PERAT URE (ºC) NORMALIZED RESET THRESHOLD (V) TEMPERATURE (°C)
CAT705, CAT706, CAT813 Characteristics subject to change without notice PACKAGE OUTLINE DRAWINGS 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 θ E1E A1 e b D c A TOP VIEW SIDE VIEW END VIEW L DETAIL A DETAIL A SYMBOL MIN NOM MAX A 1.10 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 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. 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 Characteristics subject to change without notice EXAMPLE OF ORDERING INFORMATION(1) TOP MARKING INFORMATION (FOR ALL THRESHOLDS) NiPdAu Finish (-G) Device # Package Top Marking Device # Package Top Marking CAT705 MSOP ABRT CAT705 SOIC CAT705V CAT706 MSOP ABRT CAT706 SOIC CAT706 V CAT813 MSOP ABRS CAT813 SOIC CAT813V ORDERING PART NUMBER Order Part Number Threshold Voltage CAT705VI-G 4.65V CAT705ZI-G CAT706VI-G 4.40V CAT706ZI-G CAT706RVI-G 2.63V CAT706RZI-G CAT706SVI-G 2.93V CAT706SZI-G CAT706TVI-G 3.08V CAT706TZI-G CAT813VI-G 4.65V CAT813ZI-G 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 ex ample 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
CAT705, CAT706, CAT813 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves th e right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its product s for any particular purpose, nor does SCILLC assume any liability arising out of the appli cation or use of any product or circuit, and specifically disclaims any and all liability, including without limitation speci al, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its p atent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or d eath associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILL C is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center: Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative Characteristics subject to change without notice
REVISION HISTORY
Date Rev. Description 21-Jan-08 A Initial Issue 3-Nov-08 B Change logo and fine print to ON Semiconductor 27-Oct-09 C Update Features Update Applications Update Description Update Block Diagram Update Recommended Operating Conditions Update Electrical Operating Characteristics Update Watchdog Timing Update Top Marking Information 06-July-10 D Update Electrical Operating Characteristics