FM803RS3X

FM803 3-Pin µC Supervisor Device October 2002 FM803 3-Pin µC Supervisor Device General Description The FM803 is a supervisory device designed to monitor power supply or other system voltage. FM803 generates a 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 ). The reset output of FM803 is of active low Open-Drain type and has an internal pull-up resistor. Several threshold voltages are offered to accommodate 5.0V, 3.3V, 3.0V and 2.7V system voltages. These devices are offered in space saving 3-pin SOT23 and SC70 packages. Features I Automatic reset generation on power-up I Minimum 140 ms reset pulse I Internal 5kΩ pull-up resistor I Other reset pulse choices available: 32 - 256 ms I Operating temperature -40°C to + 105°C (SOT-23) -40°C to +85°C (SC70) I Choice of Reset Thresholds: 4.63V, 4.38V, 4.00V, 3.08V, 2.93V, 2.63V I SOT23-3 and SC70-3 Packages Typical Operating Circuit VCC 3 FM803 Controller 1 2 /RESET GND Connection Diagram GND 1 FM803 3 VCC /RESET 2 SC70-3 & SOT23-3 Packages © 2000 Fairchild Semiconductor International FM803 Rev. C.3 1 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device Absolute Maximum Ratings Voltage on any terminal relative to GND VCC /RESET Input Current Output Current: /RESET -0.3V to +6.0V -0.3V to +6.0V 20mA 20mA 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) 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 SOT-23 Package (TA = 25°C unless otherwise noted) VCC = full range, as noted under conditions. See Note 1. Parameter Operating Voltage Supply Current Symbol VCC ICC Conditions TA = -40°C to +105°C TA = -40°C to +105°C, VCC < 5.5V FM803J/L/M TA = -40°C to +105°C, VCC < 3.6V FM803R/S/T FM803L FM803M FM803J FM803T FM803S FM803R 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 Min 1.1 Typ (Note 2) 5 3 Max 5.5 10 6 4.86 4.52 4.18 3.19 3.00 2.70 Units V µA Reset Threshold VTH 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 V Reset Threshold Tempco VCC to Reset Delay Reset Active Timout Period FM803 Output Low VOL VCC = VTH to (VTH - 100mV) TA = -40°C to +105°C VCC = VTH(min), ISINK = 1.2mA, FM803R/S/T VCC = VTH(min), ISINK = 3.2mA, FM803J/L/M VCC = < 1.0V, ISINK = 50µA VCC > VTH(max), IRESET = 1 0.8VCC 140 ppm/°C µs 560 0.3 0.4 0.3 1 µA ms V 10 256 Open-Drain Output Leakage Current Note 1: Testing in production is 25°C only. Limits over temperature are guaranteed by design. Note 2: Typical values are at 25°C. Note 3: Recommended minimum slew rate for the VCC rampup is 200mV/sec in the 0 to 2V range for the device to function properly. 2 FM803 Rev. C.3 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device Absolute Maximum Ratings Voltage on any terminal relative to GND VCC -0.3V to +6.0V /RESET -0.3V to (VCC + 0.3V) Input Current Output Current: /RESET 20mA 20mA Rate of Rise of VCC Continuous Power Dissipation (TA = +70°C) SC70-3 Operating Temperature Range Storage Temperature Range 100V/µs 174mW -40°C to +85°C -65°C to +150°C Lead Temperature (soldering, 10s) +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 Supply Current Symbol VCC ICC Conditions TA = 0°C to +70°C TA = -40°C to +85°C TA = -40°C to +85°C, VCC < 5.5V FM803J/L/M TA = -40°C to +85°C, VCC < 3.6V FM803R/S/T FM803L FM803M FM803J FM803T FM803S FM803R 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 2) Max 5.5 5.5 Units V µA 9 6 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 15 10 4.86 4.52 4.18 3.19 3.00 2.70 Reset Threshold VTH V Reset Threshold Tempco VCC to Reset Delay (Note 2) Reset Active Timout Period FM803 Output Low VOL VCC = VTH to (VTH - 100mV) TA = -40°C to +85°C VCC = VTH(min), ISINK = 1.2mA, FM803R/S/T VCC = VTH(min), ISINK = 3.2mA, FM803J/L/M VCC = < 1.0V, ISINK = 50µA VCC > VTH(max), /RESET = 1 140 ppm/°C µs 560 0.35 0.4 0.3 7 µA ms V 10 256 Open-Drain Output Leakage Current Note 1: Testing in production is 25°C only. VCC = 5V for FM803L/M/J, VCC = 3.3V for FM803T/S and VCC = 3V for FM803R. Limits over temperature are guaranteed by design. Note 2 Typical values are at 25°C. 3 FM803 Rev. C.3 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device Pin Descriptions Pin Number 1 2 Name GND /RESET GROUND Function /RESET remains LOW while VCC is below VTH, and for at least 140ms after VCC rises above VTH. 3 VCC Circuit Timing (Ex: FM803) VCC 3.3V VTH 1V GND RESET 3.3V VTH 1V GND 140ms (min) When operating properly with 5V VCC (for example), /RESET will also be about 5V. When VCC starts to fall, /RESET will follow it down as shown. When VCC drops below VTH, /RESET drops to ground (“issues a RESET”) and stays there unless VCC 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 VCC down to the ground. When VCC begins to rise, /RESET follows it until 1.0V or so is reached, whereupon the device regains control, /RESET is pulled to ground, etc. When VCC rises above VTH, /RESET 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. 4 FM803 Rev. C.3 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device Ordering Information Part Number FM803LS3X FM803MS3X FM803JS3X FM803TS3X FM803SS3X FM803RS3X FM803LP3X FM803MP3X FM803JP3X FM803TP3X FM803SP3X FM803RP3X Top Marking 03L 03M 03J 03T 03S 03R QLY QMY QJY QTY QSY QRY 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 Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, active LOW Open-Drain, 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 FM803 Rev. C.3 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device Physical Dimensions inches (millimeters) unless otherwise noted 0 .0 2 1 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 .0 1 0 0.005 0.76 0.76 0.95 LAND PATTERN RECOMMENDATION SOT-23 Package Dimensions FS Pkg Code AU 6 FM803 Rev. C.3 2.29 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device 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. 0.6 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 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 Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. 7 FM803 Rev. C.3 www.fairchildsemi.com