DIO6809SST3

Rev 1.6 DIO6809 Ultra a Low Power Microprocessor Reset Circuit Features Descriptions s 140ms min Reset Pulse Width DIO6809 6809 series are micro micro-processor(µP) 10µA TypSupply Current @VCC=3V supervisory circuits used to monitor the power Guaranteed Reset Valid to VCC = +1.0V supplies in µP and digital systems. They provide Power Supply Transient Immunity excellent circuit reliability and low cost by Operating Temperature Range eliminating external components. -40°C to +85°C These circuits perform a single function: they Available in SOT-23 and SOT-23 23-3L assert a reset signal whenever the VCC supply voltage Block Diagram declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. GND 1 The DIO6809 has CMOS outputs. The DIO6809 has DIO6809 3 an active-low low /RESET output, Thereset The comparator VCC is designed to ignore fast transients on VCC, and /RESET the outputs are guaranteed to be in the correct 2 logic state for VCC down dow to 1.0V over the temperature range. (Top View) The device is available in 3 pin SOT-23 SOT and SOT-23-3L package. Applications Computers Controllers Intelligent Instruments Portable/Battery-Powered Powered Equipment Ordering Information Order Part TA Number Package DIO6809XST3 RoHS -40 to +85°C SOT-23 Tape & Reel, 3000 DIO6809XSU3 RoHS -40 to +85°C SOT-23-3L Tape & Reel, 3000 www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO6809• Rev. 1.6 DIO6809 Ordering Code = Part No. + Package Code ST3: stands for SOT-23 SU3: stands for SOT-23-3L X: Refer to Device Function Reference Table on Page 2 Device Function Reference Table Part No. Reset threshold Reset active Low or High Output Type Marking DIO6809L 4.63V Low CMOS AAAA DIO6809M 4.38V Low CMOS ABAA DIO6809J 4.00V Low CMOS CWAA DIO6809T 3.08V Low CMOS ACAA DIO6809S 2.93V Low CMOS ADAA DIO6809R 2.63V Low CMOS AFAA DIO6809Z 2.32V Low CMOS AEAA Block Diagram VCC OSC VCC /RESET RESET 1.25V V COMP Delay Generator GND www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO6809• Rev. 1.6 Ultra Low Power Microprocessor Reset Circuit Ordering Information Complimentary Note DIO6809 Pin No. Symbol 1 GND 2 /RESET 3 VCC Description Ground terminal CMOS output. This output remains low if VCC drops below VRES-VHYST, and for at least 140ms after VCC rises above VRES. Analog input. This pin is both the power supply to internal circuit and the voltage to be monitored Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Rating” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the t operational sections of the specifications is not implied. Exposure to absolute maxim rating conditions for extended periods may affect device reliability. rel Parameter Rating VCC -0.3 to 6.0 /RESET -0.3 to 6.0 Terminal Voltage (With respect to GND) V VCC 20 /RESET 20 Input Current Thermal Resistance Operating Temperature Lead Temperature Range (soldering 10s) Storage Temperature ESD HBM, JEDEC: JESD22-A114 www.dioo.com Units mA 300 °C/W -40 to 85 °C 300 °C -65 to 150 °C 4500 V © 2016 DIOO MICROCIRCUITS CO., LTD DIO6809• Rev. 1.6 Ultra Low Power Microprocessor Reset Circuit Pin Descriptions DIO6809 Typical value: VCC=3V, TA=25°C, unless otherwise noted. note Parameters Symbol Maximum input voltage VCCMAX Minimum input voltage VCCMIN Supply current Reset Threshold Temperature coefficient of reset threshold Reset Threshold hysteresis IVCC VRES /RESET Output Voltage High Reset Pulse Width Min Typ 8 Vcc=3.0V 10 Vcc=5.0V 14 5.5 V uA DIO6809L 4.51 4.63 4.75 DIO6809M 4.25 4.38 4.5 DIO6809J 3.9 4.00 4.1 DIO6809T 3.0 3.08 3.15 DIO6809S 2.75 2.93 3.05 DIO6809R 2.56 2.63 2.7 DIO6809Z 2.26 2.32 2.38 ±100 VCC transitions from VRES+0.1V to VRES-0.1V VOH Unit V Vcc=2.0V VHYST VOL Max 1.0 TC VCC to /RESET Delay /RESET Output Voltage Low Test Conditions V 23 us ISINK=1.5mA 0.3 VCC=3V, VRES>3V ISINK=3.2mA 0.3 VCC=4V, VRES>4V ISINK=5mA 0.3 VCC=3V, VRES