FM803

FM803 FAIRCHILD | Alldatasheet

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Technical content

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 © 2000 Fairchild Semiconductor International Connection Diagram GND VCC /RESET FM803 SC70-3 & SOT23-3 Packages FM803 Controller VCC GND /RESET

2 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device www.fairchildsemi.com FM803 Rev. C.3 Absolute Maximum Ratings Voltage on any terminal relative to GND VCC -0.3V to +6.0V /RESET -0.3V to +6.0V Input Current 20mA Output Current: /RESET 20mA Rate of Rise of VCC 100V/µs Continuous Power Dissipation (TA = +70°C) SOT23-3 (derate 4mW/°C above +70°C) 320mW Operating Temperature Range -40 °C to +105°C Storage Temperature Range -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 SOT-23 Package (TA = 25°C unless otherwise noted) VCC = full range, as noted under conditions. See Note 1. Parameter Symbol Conditions Min Typ Max Units (Note 2) Operating Voltage V CC TA = -40°C to +105°C 1.1 5.5 V Supply Current I CC TA = -40°C to +105°C, VCC < 5.5V 5 10 µA FM803J/L/M T A = -40°C to +105°C, VCC < 3.6V 3 6 FM803R/S/T Reset Threshold V TH FM803L T A = -40°C to +105°C 4.40 4.63 4.86 V FM803M T A = -40°C to +105°C 4.18 4.38 4.52 FM803J T A = -40°C to +105°C 3.90 4.00 4.18 FM803T T A = -40°C to +105°C 2.97 3.08 3.19 FM803S T A = -40°C to +105°C 2.79 2.93 3.00 FM803R T A = -40°C to +105°C 2.49 2.63 2.70 Reset Threshold Tempco 30 ppm/ °C VCC to Reset Delay V CC = VTH to (VTH - 100mV) 10 µs Reset Active Timout Period T A = -40°C to +105°C 140 256 560 ms FM803 Output Low V OL VCC = VTH(min), ISINK = 1.2mA, 0.3 V FM803R/S/T VCC = VTH(min), ISINK = 3.2mA, 0.4 FM803J/L/M VCC = < 1.0V, ISINK = 50µA 0.3 Open-Drain Output Leakage V CC > VTH(max), IRESET = 1 0.8V CC 1 µA 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.

3 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device www.fairchildsemi.com FM803 Rev. C.3 Absolute Maximum Ratings Voltage on any terminal relative to GND VCC -0.3V to +6.0V /RESET -0.3V to (V CC + 0.3V) Input Current 20mA Output Current: /RESET 20mA Rate of Rise of VCC 100V/µs Continuous Power Dissipation (TA = +70°C) SC70-3 174mW Operating Temperature Range -40 °C to +85°C Storage Temperature Range -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. VCC = full range, as noted under conditions. See Note 1. Parameter Symbol Conditions Min Typ Max Units (Note 2) Operating Voltage V CC TA = 0°C to +70°C 1.4 5.5 V Supply Current I CC TA = -40°C to +85°C, VCC < 5.5V 9 15 µA FM803J/L/M TA = -40°C to +85°C, VCC < 3.6V 6 10 FM803R/S/T Reset Threshold V TH FM803L T A = -40°C to +85°C 4.40 4.63 4.86 V FM803M T A = -40°C to +85°C 4.18 4.38 4.52 FM803J T A = -40°C to +85°C 3.90 4.00 4.18 FM803T T A = -40°C to +85°C 2.97 3.08 3.19 FM803S T A = -40°C to +85°C 2.79 2.93 3.00 FM803R T A = -40°C to +85°C 2.49 2.63 2.70 Reset Threshold Tempco 30 ppm/ °C VCC to Reset Delay (Note 2) V CC = VTH to (VTH - 100mV) 10 µs Reset Active Timout Period T A = -40°C to +85°C 140 256 560 ms FM803 Output Low V OL VCC = VTH(min), ISINK = 1.2mA, 0.35 V FM803R/S/T VCC = VTH(min), ISINK = 3.2mA, 0.4 FM803J/L/M VCC = < 1.0V, ISINK = 50µA 0.3 Open-Drain Output Leakage V CC > VTH(max), /RESET = 1 7 µA 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.

4 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device www.fairchildsemi.com FM803 Rev. C.3 Pin Descriptions Pin Number Name Function

1 GND GROUND

2 /RESET /RESET remains LOW while V CC is below VTH, and for at least 140ms after VCC rises above VTH. 3V CC Circuit Timing (Ex: FM803) When operating properly with 5V VCC (for example), /RESET will also be about 5V. When V CC starts to fall, /RESET will follow it down as shown. When V CC 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 V CC 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 V CC 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. 3.3V VTH GND 3.3V VTH GND VCC RESET 140ms (min)

5 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device www.fairchildsemi.com FM803 Rev. C.3

Ordering Information

Part Top RESET Output Package Packing Number Marking Threshold (V) Type Type Method FM803LS3X 03L 4.63 Open-Drain, active LOW 3-Pin, SOT23 3000 units in T&R FM803MS3X 03M 4.38 Open-Drain, active LOW 3-Pin, SOT23 3000 units in T&R FM803JS3X 03J 4.00 Open-Drain, active LOW 3-Pin, SOT23 3000 units in T&R FM803TS3X 03T 3.08 Open-Drain, active LOW 3-Pin, SOT23 3000 units in T&R FM803SS3X 03S 2.93 Open-Drain, active LOW 3-Pin, SOT23 3000 units in T&R FM803RS3X 03R 2.63 Open-Drain, active LOW 3-Pin, SOT23 3000 units in T&R FM803LP3X QLY 4.63 Open-Drain, active LOW 3-Pin, SC70 3000 units in T&R FM803MP3X QMY 4.38 Open-Drain, active LOW 3-Pin, SC70 3000 units in T&R FM803JP3X QJY 4.00 Open-Drain, active LOW 3-Pin, SC70 3000 units in T&R FM803TP3X QTY 3.08 Open-Drain, active LOW 3-Pin, SC70 3000 units in T&R FM803SP3X QSY 2.93 Open-Drain, active LOW 3-Pin, SC70 3000 units in T&R FM803RP3X QRY 2.63 Open-Drain, active LOW 3-Pin, SC70 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.

6 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device www.fairchildsemi.com FM803 Rev. C.3 Physical Dimensions inches (millimeters) unless otherwise noted FS Pkg Code AU 0.120 0.105 0.079 0.071 0.004 0.001 0.040 0.031 0.021 0.015 0.055 0.047 0.098 0.083 0.010 0.005 0.0059 0.0035 0-8˚ PKG CL 0.76 0.76 0.95 2.29 LAND PATTERN RECOMMENDATION

7 www.fairchildsemi.com FM803 3-Pin µC Supervisor Device www.fairchildsemi.com FM803 Rev. C.3 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. Life Support Policy Fairchild's products are not authorized for use as critical components in life support devices or systems without the express w ritten 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. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably ex- pected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Americas Europe Hong Kong Japan Ltd. Customer Response Center Fax: +44 (0) 1793-856858 8/F, Room 808, Empire Centre 4F, Natsume Bldg. Tel. 1-888-522-5372 Deutsch Tel: +49 (0) 8141-6102-0 68 Mody Road, Tsimshatsui East 2-18-6, Yushima, Bunkyo-ku English Tel: +44 (0) 1793-856856 Kowloon. Hong Kong Tokyo, 113-0034 Japan Franç ais Tel: +33 (0) 1-6930-3696 Tel; +852-2722-8338 Tel: 81-3-3818-8840 Italiano Tel: +39 (0) 2-249111-1 Fax: +852-2722-8383 Fax: 81-3-3818-8841 .004 (.10) .026 (.65) .052 (1.3) .087 (2.2) .071 (1.8) .016 (.40) .012 (.30) .043 (1.1) .032 (.80) .018 (.45) .006 (.15) .010 (.25) .004 (.10) .009 (.23) .005 (.13) .087 (2.2) .079 (2.0) .053 (1.35) .045 (1.15) Land Pattern Recommendation 0.65 1.80 0.5 0.6 0.65 Physical Dimensions inches (millimeters) unless otherwise noted