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FM1233BES3X

Description
3-Pin レC Supervisor Circuit
CategoryPower/power management    The power supply circuit   
File Size31KB,6 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Environmental Compliance
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FM1233BES3X Overview

3-Pin レC Supervisor Circuit

FM1233BES3X Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerFairchild
Parts packaging codeSOT-23
package instructionTSOP, TO-236
Contacts3
Reach Compliance Codeunknow
ECCN codeEAR99
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G3
JESD-609 codee3
length2.9 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals3
Maximum operating temperature105 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSOP
Encapsulate equivalent codeTO-236
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Certification statusNot Qualified
Maximum seat height1.14 mm
Maximum supply current (Isup)0.006 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1.2 V
Nominal supply voltage (Vsup)5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Threshold voltage nominal+4.12V
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.3 mm
FM1233B 3-Pin µC Supervisor Circuit
February 2003
FM1233B
3-Pin µC Supervisor Circuit
General Description
The FM1233B is a supervisor circuit that monitors a micropro-
cessor power supply or other system voltage and issues a reset
pulse when a fault condition exists. Several different threshold
voltages are offered to accommodate 5V systems with different
tolerances.
The device features a precision temperature-compensated volt-
age reference and comparator. When V
CC
falls to the threshold
voltage, a RESET pulse is issued, holding the output in the
active state. When power rises above V
TH
, the reset remains for
approximately 250 ms to allow the system clock and other cir-
cuits to stabilize. The reset output of FM1233B is of open-drain
active low type.
The FM1233B also can monitor a switch closure on its output,
enabling it to recognize an external reset from a pushbutton
switch or a µP. In the case of a switch, the closure will be
debounced by circuitry internal to the FM1233B.
Features
s
Precision monitoring of 5V and lower voltage microprocessor
systems
s
V
TH
values of 4.62V, 4.38V and 4.12V
s
Automatic restart of microprocessor after power failure
s
140ms (min) power-on RESET delay (typ.: 256ms)
s
s
s
s
s
s
Internal 5k
pull-up resistor
Other reset choices available: 32 to 128ms
Operating Temperature -40°C to +105°C
Monitors external pushbutton override
Internal switch debounce circuitry
SOT23-3 package
Typical Operating Circuit
VCC
3
FM1233B
Controller
1
GND
Connection Diagram
2
RESET
GND
1
FM1233B
3
VCC
RESET
2
SOT23-3 Package
©2002 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
FM1233B Rev. D

FM1233BES3X Related Products

FM1233BES3X FM1233BDS3X FM1233BFS3X FM1233B
Description 3-Pin レC Supervisor Circuit 3-Pin レC Supervisor Circuit 3-Pin レC Supervisor Circuit 3-Pin レC Supervisor Circuit
Is it Rohs certified? conform to conform to conform to -
Parts packaging code SOT-23 SOT-23 SOT-23 -
package instruction TSOP, TO-236 SOT-23, 3 PIN TSOP, TO-236 -
Contacts 3 3 3 -
Reach Compliance Code unknow unknow unknow -
ECCN code EAR99 EAR99 EAR99 -
Adjustable threshold NO NO NO -
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT -
JESD-30 code R-PDSO-G3 R-PDSO-G3 R-PDSO-G3 -
JESD-609 code e3 e3 e3 -
length 2.9 mm 2.9 mm 2.9 mm -
Humidity sensitivity level 1 1 1 -
Number of channels 1 1 1 -
Number of functions 1 1 1 -
Number of terminals 3 3 3 -
Maximum operating temperature 105 °C 105 °C 105 °C -
Minimum operating temperature -40 °C -40 °C -40 °C -
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY -
encapsulated code TSOP TSOP TSOP -
Encapsulate equivalent code TO-236 TO-236 TO-236 -
Package shape RECTANGULAR RECTANGULAR RECTANGULAR -
Package form SMALL OUTLINE, THIN PROFILE SMALL OUTLINE, THIN PROFILE SMALL OUTLINE, THIN PROFILE -
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED -
power supply 5 V 5 V 5 V -
Certification status Not Qualified Not Qualified Not Qualified -
Maximum seat height 1.14 mm 1.14 mm 1.14 mm -
Maximum supply current (Isup) 0.006 mA 0.006 mA 0.006 mA -
Maximum supply voltage (Vsup) 5.5 V 5.5 V 5.5 V -
Minimum supply voltage (Vsup) 1.2 V 1.2 V 1.2 V -
Nominal supply voltage (Vsup) 5 V 5 V 5 V -
surface mount YES YES YES -
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL -
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) -
Terminal form GULL WING GULL WING GULL WING -
Terminal pitch 0.95 mm 0.95 mm 0.95 mm -
Terminal location DUAL DUAL DUAL -
Threshold voltage nominal +4.12V +4.38V +4.62V -
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED -
width 1.3 mm 1.3 mm 1.3 mm -
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