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FM809/810 3-Pin C Supervisor Circuits
August 2005
FM809/810 3-Pin C 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 A)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. 140ms power-on RESET delay (minimum) RESET operation guaranteed to 1.0V Supply current only 2A No external components Operating Range - -40C to +105C (SOT23) - -40C to +85C (SC70) SOT23-3 and SC70-3 packages
Applications
Microcontrollers and Microprocessors Appliances Power-Supply Monitoring Portable Equipment Automotive Systems
Features
VTH voltages of 4.63V, 4.38V, 4.00V, 3.08V, 2.93V and 2.63V RESET (FM809) or RESET (FM810) output
Typical Operating Circuit
VCC VCC
FM809
C
RESET RESET I/P GND
GND
Connection Diagram
GND 1 3 RESET (809) or RESET (810) 2 VCC
FM809/810
SOT23-3 & SC70-3Packages
(c)2005 Fairchild Semiconductor Corporation
1
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FM809/810 Rev. G
FM809/810 3-Pin C Supervisor Circuits
Absolute Maximum Ratings
Voltage on any terminal relative to GND VCC RESET, RESET Input Current Output Current: RESET, RESET ESD Rating Human Body Model >2KV Machine Model >200KV 100V/s Rate of Rise of VCC Continuous Power Dissipation (TA = +70C) 20mA SOT23-3 (derate 4mW/C above +70C) 320mW Operating Temperature Range -40C to +105C Storage Temperature Range -65C to +150C Lead Temperature (soldering, 10s) +300C 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. -0.3V to +6.0V -0.3V to (VCC + 0.3V) 20mA
Electrical Characteristics SOT23 Package (TA = 25C unless otherwise noted) VCC = full range, as noted under conditions. See Note 1.
Parameter
Operating Voltage
Symbol
VCC ICC
Conditions
TA = 0C to +70C TA = -40C to 105C TA = -40C to 105C, VCC < 5.5V FM809J/L/M TA = -40C to 105C, 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 s ms V V A V
Supply Current
Reset Threshold
VTH
FM8xxL FM8xxM FM8xxJ FM8xxT FM8xxS FM8xxR
TA = -40C to +105C TA = -40C to +105C TA = -40C to +105C TA = -40C to +105C TA = -40C to +105C TA = -40C to +105C
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 = -40C to +105C VCC = VTH(min), ISINK = 1.2mA, FM809R/S/T VCC = VTH(min), ISINK = 3.2mA, FM809J/L/M VCC = < 1.0V, ISINK = 50A FM809 Output High (RESET) VOH VOL VCC > VTH(max), ISOURCE = 500A (R/S/T) VCC > VTH(max), ISOURCE = 800A (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 = 150A 0.8VCC 0.8VCC VCC - 1.5V 140
10 256
V
0.3 0.4
V
V
Note 1: Testing in production is 25C 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 25C. 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. G
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FM809/810 3-Pin C Supervisor Circuits
Absolute Maximum Ratings
Voltage on any terminal relative to GND VCC RESET, RESET Input Current Output Current: RESET, RESET ESD Rating Human Body model 1.5KV Machine model >200KV 100V/s Rate of Rise of VCC 20mA Continuous Power Dissipation (TA = +70C) SC70-3 174mW Operating Temperature Range -40C to +85C Storage Temperature Range -65C to +150C Lead Temperature (soldering, 10s) +300C 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. -0.3V to +6.0V -0.3V to (VCC + 0.3V) 20mA
Electrical Characteristics SC70 Package (TA = 25C unless otherwise noted) VCC = full range, as noted under conditions. See Note 1.
Parameter
Operating Voltage
Symbol
VCC ICC VTH
Conditions
TA = 0C to +70C TA = -40C to 85C TA = -40C to 85C, VCC < 5.5V FM809J/L/M TA = -40C to 85C, VCC < 3.6V FM809R/S/T FM8xxL FM8xxM FM8xxJ FM8xxT FM8xxS FM8xxR TA = -40C to +85C TA = -40C to +85C TA = -40C to +85C TA = -40C to +85C TA = -40C to +85C TA = -40C to +85C
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 s ms V V A 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 = -40C to +85C VCC = VTH(min), ISINK = 1.2mA, FM809R/S/T VCC = VTH(min), ISINK = 3.2mA, FM809J/L/M VCC = < 1.0V, ISINK = 50A FM809 Output High (RESET) VOH VOL VOH VCC > VTH(max), ISOURCE = 500A (R/S/T) VCC > VTH(max), ISOURCE = 800A (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 = 150A 0.8VCC 0.8VCC VCC - 1.5V 100
10 256
V
0.35 0.4
V
V
Note 1: Testing in production is 25C 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 25C.
3 FM809/810 Rev. G
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FM809/810 3-Pin C 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. G
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FM809/810 3-Pin C 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. Note 5: For the SC70 package, the third character of the top marking, identified as "Y" in the above table, identifies wafer lot code.
5 FM809/810 Rev. G
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FM809/810 3-Pin C 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 6: Devices listed above feature 250ms typical Reset Pulse width. Consult Fairchild sales for other reset pulse width options. Note 7: For the SC70 package, the third character of the top marking, identified as "Y" in the above table, identifies wafer lot code.
6 FM809/810 Rev. G
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FM809/810 3-Pin C 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. G
2.29
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FM809/810 3-Pin C 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
8 FM809/810 Rev. G
0.6
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FM809/810 3-Pin C Supervisor Circuits
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.
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DISCLAIMER
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. 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 FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component is any component of a life 1. Life support devices or systems are devices or support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Product Status Formative or In Design Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.
Rev. I16
9 FM809/810 Rev. G
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