FM809

FM809/810 3-Pin µC Supervisor Circuits October 2002 FM809/810 3-Pin µC Supervisor Circuits General Description The FM809/810 are supervisor circuits that monitor power supply or other system voltages and issue reset pulse whenever the voltage being monitored is out of tolerance. Once asserted, the reset pulse is guaranteed to be valid for a minimum of 140ms (256ms typical). FM809xx offers active low push-pull type of reset while FM810xx offers active high push-pull type. Several threshold voltages are offered to accommodate 5.0V, 3.3V, 3.0V and 2.7V system voltages. The low supply current (typically 2 µA)recommends FM809/810 devices for portable designs or wherever power saving is primary. These devices are offered in space saving 3-pin SOT23 and SC70 packages. I 140ms power-on RESET delay (minimum) I RESET operation guaranteed to 1.0V I Supply current only 2µA I No external components I Operating Range – -40°C to +105°C (SOT23) – -40°C to +85°C (SC70) I SOT23-3 and SC70-3 packages Applications I I I I I Microcontrollers and Microprocessors Appliances Power-Supply Monitoring Portable Equipment Automotive Systems Features I VTH voltages of 4.63V, 4.38V, 4.00V, 3.08V, 2.93V and 2.63V I RESET (FM809) or RESET (FM810) output Typical Operating Circuit VCC VCC FM809 µC RESET RESET I/P GND GND Connection Diagram GND 1 3 RESET (809) or RESET (810) 2 VCC FM809/810 SOT23-3 & SC70-3Packages ©2002 Fairchild Semiconductor Corporation 1 www.fairchildsemi.com FM809/810 Rev. F FM809/810 3-Pin µC Supervisor Circuits Absolute Maximum Ratings Voltage on any terminal relative to GND VCC RESET, RESET Input Current Output Current: RESET, RESET -0.3V to +6.0V -0.3V to (VCC + 0.3V) 20mA 20mA ESD Rating Human Body Model Machine Model Rate of Rise of VCC Continuous Power Dissipation (TA = +70°C) SOT23-3 (derate 4mW/°C above +70°C) Operating Temperature Range Storage Temperature Range Lead Temperature (soldering, 10s) >2KV >200KV 100V/µs 320mW -40°C to +105°C -65°C to +150°C +300°C These are stress ratings only, and functional operation is not implied for these levels or beyond. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Electrical Characteristics SOT23 Package (TA = 25°C unless otherwise noted) VCC = full range, as noted under conditions. See Note 1. Parameter Operating Voltage Symbol VCC ICC Conditions TA = 0°C to +70°C TA = -40°C to 105°C TA = -40°C to 105°C, VCC < 5.5V FM809J/L/M TA = -40°C to 105°C, VCC < 3.6V FM809R/S/T Min 1.0 1.1 Typ (Note 3) Max Units 5.5 5.5 5 2 10 6 4.86 4.52 4.18 3.19 3.00 2.70 ppm/°C 15 560 0.3 0.4 0.3 µs ms V V µA V Supply Current Reset Threshold VTH FM8xxL FM8xxM FM8xxJ FM8xxT FM8xxS FM8xxR TA = -40°C to +105°C TA = -40°C to +105°C TA = -40°C to +105°C TA = -40°C to +105°C TA = -40°C to +105°C TA = -40°C to +105°C 4.40 4.18 3.90 2.97 2.79 2.49 4.63 4.38 4.00 3.08 2.93 2.63 30 Reset Threshold Tempco VCC to Reset Delay (Note 2) Reset Active Timout Period FM809 Output Low (RESET) VOL VCC = VTH to (VTH - 100mV) TA = -40°C to +105°C VCC = VTH(min), ISINK = 1.2mA, FM809R/S/T VCC = VTH(min), ISINK = 3.2mA, FM809J/L/M VCC = < 1.0V, ISINK = 50µA FM809 Output High (RESET) VOH VOL VCC > VTH(max), ISOURCE = 500µA (R/S/T) VCC > VTH(max), ISOURCE = 800µA (J/M/L) FM810 Output Low (RESET) VCC = VTH(max), ISINK = 1.2mA, FM810R/S/T VCC = VTH(max), ISINK = 3.2mA, FM810J/L/M FM810 Output High (RESET) VOH 1.8V < VCC < VTH(min), ISOURCE = 150µA 0.8VCC 0.8VCC VCC - 1.5V 140 10 256 V 0.3 0.4 V V Note 1: Testing in production is 25°C only. VCC = 5V for FM8xxL/M/J, VCC = 3.3V for FM8xxT/S and VCC = 3V for FM8xxR. Limits over temperature are guaranteed by design. Note 2: RESET output is for FM809. RESET output is for FM810. Note 3: Typical values are at 25°C. Note 4: Recommended minimum slew rate for the VCC rampup is 200mV/sec in the 0 to 2V range for the device to function properly. 2 FM809/810 Rev. F www.fairchildsemi.com FM809/810 3-Pin µC Supervisor Circuits Absolute Maximum Ratings Voltage on any terminal relative to GND VCC RESET, RESET Input Current Output Current: RESET, RESET -0.3V to +6.0V -0.3V to (VCC + 0.3V) 20mA 20mA ESD Rating Human Body model Machine model Rate of Rise of VCC Continuous Power Dissipation (TA = +70°C) SC70-3 Operating Temperature Range Storage Temperature Range Lead Temperature (soldering, 10s) 1.5KV >200KV 100V/µs 174mW -40°C to +85°C -65°C to +150°C +300°C These are stress ratings only, and functional operation is not implied for these levels or beyond. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Electrical Characteristics SC70 Package (TA = 25°C unless otherwise noted) VCC = full range, as noted under conditions. See Note 1. Parameter Operating Voltage Symbol VCC ICC VTH Conditions TA = 0°C to +70°C TA = -40°C to 85°C TA = -40°C to 85°C, VCC < 5.5V FM809J/L/M TA = -40°C to 85°C, VCC < 3.6V FM809R/S/T FM8xxL FM8xxM FM8xxJ FM8xxT FM8xxS FM8xxR TA = -40°C to +85°C TA = -40°C to +85°C TA = -40°C to +85°C TA = -40°C to +85°C TA = -40°C to +85°C TA = -40°C to +85°C Min 1.4 1.6 Typ (Note 3) Max Units 5.5 5.5 9 6 15 10 4.86 4.52 4.18 3.19 3.00 2.70 ppm/°C 15 560 0.35 0.4 0.3 µs ms V V µA V Supply Current Reset Threshold 4.40 4.18 3.90 2.97 2.79 2.49 4.63 4.38 4.00 3.08 2.93 2.63 30 Reset Threshold Tempco VCC to Reset Delay (Note 2) Reset Active Timout Period FM809 Output Low (RESET) VOL VCC = VTH to (VTH - 100mV) TA = -40°C to +85°C VCC = VTH(min), ISINK = 1.2mA, FM809R/S/T VCC = VTH(min), ISINK = 3.2mA, FM809J/L/M VCC = < 1.0V, ISINK = 50µA FM809 Output High (RESET) VOH VOL VOH VCC > VTH(max), ISOURCE = 500µA (R/S/T) VCC > VTH(max), ISOURCE = 800µA (J/M/L) FM810 Output Low (RESET) VCC = VTH(max), ISINK = 1.2mA, FM810R/S/T VCC = VTH(max), ISINK = 3.2mA, FM810J/L/M FM810 Output High (RESET) 1.8V < VCC < VTH(min), ISOURCE = 150µA 0.8VCC 0.8VCC VCC - 1.5V 100 10 256 V 0.35 0.4 V V Note 1: Testing in production is 25°C only. VCC = 5V for FM8xxL/M/J, VCC = 3.3V for FM8xxT/S and VCC = 3V for FM8xxR. Limits over temperature are guaranteed by design. Note 2: RESET output is for FM809. RESET output is for FM810. Note 3: Typical values are at 25°C. 3 FM809/810 Rev. F www.fairchildsemi.com FM809/810 3-Pin µC Supervisor Circuits Pin Descriptions Pin Number 1 2 3 Name GND RESET* VCC GROUND Function RESET (RESET) remains LOW (HIGH) while VCC is below VTH, and for at least 140ms after VCC rises above VTH. * with overbar, FM809 (RESET); without, FM810 (RESET). Circuit Timing (e.g.: FM809) INPUT 5V VTH 1V GND OUTPUT 5V VTH 1V GND 140ms When operating properly with 5V in (for example), VOUT will also be about 5V. When VIN starts to fall, VOUT will follow it down as shown. When VIN drops below VTH, VOUT drops to ground ("issues a RESET") and stays there unless VIN also falls below its minimum operating voltage, approx. 1V. At this point, the supervisor loses control, and its output may rise, only to again follow VIN down to the ground. When VIN begins to rise, VOUT follows it until 1.0V or so is reached, whereupon the device regains control, VOUT is pulled to ground, etc. When VIN rises above VTH, VOUT comes out of RESET 140 ms later. If it is required that a lower value than GND + 1.0V is needed on RESET signal during VCC ≤ 1V, a 100K resistor may be used on the device output (to GND for the FM809, to VCC for the FM810). 4 FM809/810 Rev. F www.fairchildsemi.com FM809/810 3-Pin µC Supervisor Circuits Ordering Information (FM809) Part Number FM809LS3X FM809MS3X FM809JS3X FM809TS3X FM809SS3X FM809RS3X FM809LP3X FM809MP3X FM809JP3X FM809TP3X FM809SP3X FM809RP3X Top Marking 09L 09M 09J 09T 09S 09R VLY VMY VJY VTY VSY VRY RESET Threshold (V) 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 Output Type Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Push-Pull, active LOW Package Type 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SC70 3-Pin, SC70 3-Pin, SC70 3-Pin, SC70 3-Pin, SC70 3-Pin, SC70 Packing Method 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R Note 4: Devices listed above feature 250ms typical Reset Pulse width. Consult Fairchild sales for other reset pulse width options. 5 FM809/810 Rev. F www.fairchildsemi.com FM809/810 3-Pin µC Supervisor Circuits Ordering Information (FM810) Part Number Top Marking FM810LS3X FM810MS3X FM810JS3X FM810TS3X FM810SS3X FM810RS3X FM810LP3X FM810MP3X FM810JP3X FM810TP3X FM810SP3X FM810RP3X 10L 10M 10J 10T 10S 10R ZLY ZMY ZJY ZTY ZSY ZRY RESET Threshold (V) 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 Output Type Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Push-Pull, active HIGH Package Type 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SOT23 3-Pin, SC70 3-Pin, SC70 3-Pin, SC70 3-Pin, SC70 3-Pin, SC70 3-Pin, SC70 Packing Method 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R 3000 units in T&R Note 5: Devices listed above feature 250ms typical Reset Pulse width. Consult Fairchild sales for other reset pulse width options. 6 FM809/810 Rev. F www.fairchildsemi.com FM809/810 3-Pin µC Supervisor Circuits Physical Dimensions inches (millimeters) unless otherwise noted 0.021 0.015 0.055 0.047 0.098 0.083 0.120 0.105 0.040 0.031 0.079 0.071 0.0059 0.0035 0-8˚ 0.004 0.001 PKG CL 0.010 0.005 0.76 0.76 0.95 LAND PATTERN RECOMMENDATION SOT-23 Package Dimensions FS Pkg Code AU 7 FM809/810 Rev. F 2.29 www.fairchildsemi.com FM809/810 3-Pin µC Supervisor Circuits Physical Dimensions inches (millimeters) unless otherwise noted .087 (2.2) .071 (1.8) .053 (1.35) .045 (1.15) .087 (2.2) .079 (2.0) .009 (.23) .005 (.13) .043 (1.1) .032 (.80) .004 (.10) .010 (.25) .004 (.10) .026 (.65) .052 (1.3) .016 (.40) .012 (.30) .018 (.45) .006 (.15) 0.65 0.65 1.80 0.5 Land Pattern Recommendation SC70 Package Dimensions Life Support Policy Fairchild's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of Fairchild Semiconductor Corporation. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. Fairchild Semiconductor Americas Customer Response Center Tel. 1-888-522-5372 Fairchild Semiconductor Europe Fax: +44 (0) 1793-856858 Deutsch Tel: +49 (0) 8141-6102-0 English Tel: +44 (0) 1793-856856 Français Tel: +33 (0) 1-6930-3696 Italiano Tel: +39 (0) 2-249111-1 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Fairchild Semiconductor Hong Kong 8/F, Room 808, Empire Centre 68 Mody Road, Tsimshatsui East Kowloon. Hong Kong Tel; +852-2722-8338 Fax: +852-2722-8383 0.6 Fairchild Semiconductor Japan Ltd. 4F, Natsume Bldg. 2-18-6, Yushima, Bunkyo-ku Tokyo, 113-0034 Japan Tel: 81-3-3818-8840 Fax: 81-3-3818-8841 8 FM809/810 Rev. F www.fairchildsemi.com