MCP809M3X-4.38/NOPB

MCP809, MCP810 www.ti.com SNVS165A – JUNE 2001 – REVISED MAY 2013 MCP809/MCP810 3-Pin Microprocessor Reset Circuits Check for Samples: MCP809, MCP810 FEATURES DESCRIPTION • The MCP809/810 microprocessor supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, powerdown and brown-out conditions. 1 2 • • • • • Precise Monitoring of 3V, 3.3V, and 5V Supply Voltages Fully specified over temperature 140ms min. Power-On Reset Pulse Width, 240ms Typical – Active-low RESET Output (MCP809) – Active-high RESET Output (MCP810) Specified RESET Output Valid for VCC≥1V Low Supply Current, 15µA typical Power supply transient immunity APPLICATIONS • • • • • • Microprocessor Systems Computers Controllers Intelligent Instruments Portable/Battery-Powered Equipment Automotive The function of the MCP809/810 is to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240ms after VCC rises above the threshold. The MCP809 has an active-low RESET output, while the MCP810 has an active-high RESET output. Seven standard reset voltage options are available, suitable for monitoring 5V, 3.3V, and 3V supply voltages. With a low supply current of only 15µA, the MCP809/810 are ideal for use in portable equipment. The MCP809/MCP810 are available in the 3-pin SOT23 package. Typical Application Circuit Figure 1. Typical Application Circuit Connection Diagram Figure 2. ( ) are for MCP810 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2001–2013, Texas Instruments Incorporated MCP809, MCP810 SNVS165A – JUNE 2001 – REVISED MAY 2013 www.ti.com Pin Description PIN NAME 3 GND FUNCTION Ground reference RESET (MCP809) Active-low output. RESET remains low while VCC is below the reset threshold, and for 240ms after VCC rises above the reset threshold. RESET (MCP810) Active-high output. RESET remains high while VCC is below the reset threshold, and for 240ms after VCC rises above the reset threshold. 1 2 VCC Supply Voltage (+5V, +3.3V, or +3.0V) These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) −0.3V to 6.0V VCC −0.3V to (VCC+ 0.3V) RESET, RESET Input Current, VCC Pin 20mA Output Current, RESET, RESET Pin 20mA Rate of Rise, VCC ESD Rating 100V/µs (2) 2kV Continuous Power Dissipation (TA = +70°C) SOT-23 (3) 320mW −40°C to +105°C Ambient Temperature Range Maximum Junction Temperature 125°C −65°C to +160°C Storage Temperature Range Lead Temperature (soldering, 10sec) (1) (2) (3) 2 +300°C Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which the device operates correctly. Operating ratings do not imply specified performance limits. For specified performance limits and associated test conditions, see the Electrical Characteristics. The human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. Production testing done at TA = +25°C, over temperature limits specified by design only. Submit Documentation Feedback Copyright © 2001–2013, Texas Instruments Incorporated Product Folder Links: MCP809 MCP810 MCP809, MCP810 www.ti.com SNVS165A – JUNE 2001 – REVISED MAY 2013 Electrical Characteristics VCC = full range, TA = −40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V for 4.63/4.38/4.00 versions, VCC = 3.3V for 3.08/2.93 versions, and VCC = 3V for 2.63 version. (1) Symbol Parameter VCC Range Conditions Supply Current TA = −40°C to +105°C 1.2 5.5 TA = +85°C to +105°C MCP8_ _ -4.38 MCP8_ _ -4.00 Reset Threshold (2) MCP8_ _ -3.08 MCP8_ _ -2.93 MCP8_ _ -2.63 VCC