2001 Microchip Technology Inc. DS11184D-page 1
MCP120/130
FEATURES
• Holds microcontroller in reset until supply voltage
reaches stable operating level
• Resets microc on troller during pow e r loss
• Precision monitoring of 3V, 3.3V and 5V systems
• 7 volt a ge trip poi nt s avai lab le
• Active low RESET pin
• Open drain output
• Internal pull-up resistor (5 kΩ) for MCP13 0
• Holds RESET for 350 ms (typical)
• RESET to VCC = 1.0V
• Accur acy of ± 1 25 m V fo r 5V sy stem s and ± 75 mV
for 3V systems over temperature
•45 µA typical operating current
• Temperature range:
- Industrial (I): -40°C to +85°C
DESCRIPTION
The Microchip Technology Inc. MCP120/130 is a volt-
age supervisory device designed to keep a microcon-
troller in reset until the system voltage has reached the
proper level and stabilized. It also operates as protec-
tion f rom brown-out conditions wh en the supply voltage
drops below a safe operating level. Both devices are
available with a choice of seven different trip voltages
and both have open drain ou tputs. The MCP130 has an
internal 5 kΩ pull up resist or. Both de vices have act ive
low RESET pins. The MCP120/130 will assert the
RESET signal whenever the voltage on the VDD pin is
bel ow the trip-point voltage.
PACKAGES
BLOCK DIAGRAM
VSS
VDD
RST VSS VDD
VSS
VDD RST VSS
VDD
RST
VSS
RST
VDD
TO-92 with
‘D’ Bondout TO-92 WITH
‘F’ BONDOUT
TO-92 with
‘G’ Bondout TO-92 with
‘H’ Bondout
SOT-23-3
MCP120
MCP130 MCP130
MCP120
MCP130
MCP120
MCP120
MCP130
RST
VDD
NC
VSS
1
2
3
4
8
7
6
5
NC
NC
NC
NC
150m il SOIC
MCP120
MCP130
RST
Delay
Circuit Output
Driver RESET
VDD
+
-
Comparator pull-up on
MCP130
5kΩ internal
Bandgap
Reference
only
Micr ocontroller Supervisory Circuit with Open Drain Output
2001 Microchip Technology Inc. DS11184D-page 2
MCP120/130
1.0 ELECTRICAL CHARACTERISTICS
1.1 Maximum Ratings*
VDD........................................................................7.0V
All inputs and outputs w.r.t. VSS ... ..-0.6V to VDD +1.0V
Storage temperature ..........................-65°C to +150°C
Ambient tem p. with powe r appli ed.....-65°C to +125°C
ESD protection on all pins ..................................... ≥ 2 kV
*Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the devi ce at those or any other c onditions ab ove those
indicated in the operational listings of this specification
is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
DC AND AC CHARACTERISTICS
All parameters apply at the
specified temp and voltage
ranges unless otherwise noted.
VDD = 1.0 - 5.5V
Industrial (I): -40°C to +85°C
Parameter Symbol Min. Typ. Max. Units Test Conditions
Operati ng Voltage Range VDD 1.0 —5.5 V
VDD Va lue to RESET VDDMIN 1.0 ——V
Operati ng Curren t IDD —45 60 µAVDD = 5.5V (no load)
VDD Trip Point MCP1X0-270
MCP1X0-300
MCP1X0-315
MCP1X0-450
MCP1X0-460
MCP1X0-475
MCP1X0-485
VTRIP 2.55
2.85
3.0
4.25
4.35
4.50
4.60
2.625
2.925
3.075
4.375
4.475
4.625
4.725
2.7
3.0
3.15
4.50
4.60
4.75
4.85
V
RESET Low
Level Output
Voltage
MCP1X0-270
MCP1X0-300
MCP1X0-315
VOL ——0.4 V IOL = 3.2 mA,
VDD = VTRIPMIN
MCP1X0-450
MCP1X0-460
MCP1X0-475
MCP1X0-485
——0.6 IOL = 8.5 m A,
VDD = VTRIPMIN
RESET High
Level Output
Volt a ge
(MCP130 Only)
MCP130-xxx
(All VTRIP
Points)
VOH VDD-0.7 ——VIOH = 50 µA,VDD > VTRIPMAX
Pull-up Resistor ( M CP130 Only) —5—kΩ
Output Leakage (MCP120 Only) —1—µA
Threshold Hysteresis VHYS —50 —mV
VDD Detect to RESET Inactive tRPU 150 350 700 ms
VDD Detect to RESET tRPD —10 —µsVDD ramped from VTRIPMAX +
250 mV down to V TRIPMIN -
250 mV
Note: Typical values are for 25°C and VDD = 5.0V
2001 Microchip Technology Inc. DS11184D-page 3
MCP120/130
Figure 1-1: MCP120/130 Timing Diagram
VDD
RESET VOH
tRPU
VTRIP
tRPD
VOH
MCP120/130
DS11184D-page 4 2001 Microchip Technology Inc.
2.0 APPLICATIONS INFORMATION
2.1 The Need for Supervisory Circuits
For many of t oday’s microcontroller applications, care
must be taken to pre vent low power conditions that can
cause many di ffe rent syst em pro blems. T he most com-
mon causes are brown-out conditions where the sys-
tem supply drops below the operating level momentar-
ily, and the second, is when a slowly decaying power
supply causes the microcontroller to begin executing
instructions without enough voltage to sustain SRAM
and producing indeterminate results.
Figure 2-1: Typical Application
2.2 Negative Going VDD Transients
Many s ystem desi gners im plementi ng POR circuit s ar e
concerned about the minimum pulse width required to
cause a reset. Figure 2-2 shows typical transient
voltag e below the tr ip poin t (VTRIP - VDD) vs. transient
duration. It shows that the farther below the trip point
the transient pulse goes, the duration of the pulse
required to c ause a rese t get s sho rter. A 0 .1 µF byp ass
cap mounted as close as possible to the VDD pi n pro-
vides additional transient immunity.
Figure 2-2: Typical Transient Respo nse
Microcontroller
MCLR
VSS
RST
MCP120
or
RESET
VSS
VDD
VDD
Bypass
Capacitor
VDD
TIME
SUPPLY VOLTAGE
0
0
5V VTRIPMAX
VTRIPMIN
Transient
Duration
(VTRIPMIN - VDD)
0123
VTRIP - VDD (V)
10
8
6
4
2
0
TRANSIENT DURATION (
µ
S)
45
TA = +25°C
Transients above the
curve will cause a reset
Transients below
the curve will NOT
cause a reset
2001 Microchip Technology Inc. DS11184D-page 5
MCP120/130
2.3 Effect of Temperature on Timeout
Period (tRPU)
The timeout period (tRPU) determines how long the
device remains in the reset condition. This is controlled
by an internal RC timer and is effected by both VDD
and temperature. The graph shown in Figure 2-3
shows typical response for different VDD values and
temperatures.
Figure 2-3: tRPU vs. Temperature
Figure 2-4: IDD vs. Temperature
Figure 2-5: Normalized V TRIP vs. Temperature
Figure 2-6: VOL vs. IOL
Figure 2-7: Normalized IOL vs. Temperature
-40 -20 20 60
TEMPERATURE (°C)
600
500
400
300
200
100
TIMEOUT PERIOD (tRPU) (ms)
80 100040
700
VDD = 5V
VDD = 4V
VDD = 3V
VDD = 6V
-40 -20 20 60
TEMPERATURE (°C)
50
40
30
20
10
0
OPERATING CURRENT (
µ
A)
80 100040
60
VDD = 5V
VDD = 3V
VDD = 5.5V
VDD = 4V
-40 -20 20 60
TEMPERATURE (°C)
1.000
0.998
0.996
0.994
0.992
0.997
NORMALIZED THRESHOLD* (VTRIP)
80 100040
1.002
* Multiply value at 25°C by this
factor to determine the value at
temperature
02 6 10
500
400
300
200
100
0
V
OL
(m V )
1248
600
700
800
14 16 18 20
VDD = 3.5V
VDD = 1.5V
VDD = 4.5V
VDD = 2.5V
TA = +25°C
IOL (mA)
-40 -20 20 60
TEM PER ATURE (°C)
1.2
1.1
1.00
0.9
0.8
0.7
NORMALIZED IOL*
80 100040
1.3
* Multiply value at 25°C by this
factor to determine the value at
temperature
MCP120/130
DS11184D-page 6 2001 Microchip Technology Inc.
3.0 PACKAGING INFORMATION
3.1 Package Marking Information
3-Lead Plastic Transistor Outline (TO-92) Example:
3-Lead Plastic Small Outline Transistor (SOT23) Example:
Legend: XX...X Customer specific information*
YY Year code (last 2 digits of calendar year)
WW Week code (wee k of Januar y 1 is week ‘01’)
NNN Alphanumeric traceability code
Note: In the eve nt the full Micro chip pa rt numbe r canno t be marked on one line, it wil l
be carrie d ov er to th e nex t li ne th us l im itin g the num be r of av ail abl e characters
for customer specific information.
*Standard OTP marking consists of Microchip part number, year code, week code, and traceability code.
For OT P mark ing beyond this, c ert ain price ad ders a ppl y. Please c heck with your M icr ochip Sales Office.
For QTP devices, any special marking adders are included in QTP price.
XXXXXX
XXXXXX
XXXXXX
YWWNNN
MCP120
XXXXXX
XXXXXX
YWWNNN
XXNN PKNN
SOT23 PARTS LABELING:
The table below identifies the first 2 characters (XX) in the 4-character field
(XXNN) for marking of the 3-Lead SOT23 package.
Mark Part Number Mark Part Number
SJ MCP120T-270I/TT PJ MCP130T-270I/TT
SK MCP120T-300I/TT PK MCP130T-300I/TT
SL MCP120T-315I/TT PL MCP130T-315I/TT
SM MCP120T-450I/TT PM MCP130T-450I/TT
SN MCP120T-460I/TT PN MCP130T-460I/TT
SO MCP120T-475I/TT PO MCP130T-475I/TT
SP MCP120T-485I/TT PP MCP130T-485I/TT
8-Lead Plastic Small Outline (SOIC) Example:
XXXXYYWW
NNN
XXXXXXXX XXXXYYWW
NNN
MCP120
2001 Microchip Technology Inc. DS11184D-page 7
MCP120/130
3.2 Package Detail Information
3-Lead Plastic Transistor Outline (TO) (TO-92)
432432
β
Mold Draft Angle Bottom 654654
α
0.560.480.41.022.019.016BLead Width 0.510.430.36.020.017.014
c
Lead Thickness
2.412.292.16.095.090.085RMolded Package Radius 4.954.644.32.195.183.170DOvera ll Length 4.954.714.45.195.186.175E1Overall Width 3.943.623.30.155.143.130ABottom to Package Flat 1.27.050
p
Pitch 33
n
Number of Pins MAXNOMMINMAXNOMMINDimen sion Li mit s MILLIMETERSINCHES*Units
R
n
1
3
α
p
L
B
A
c
β
1
D
2
E1
Tip to Seating Plane L .500 .555 .610 12.70 14.10 15.49
*Controlling Parameter
Mold Draft Angle Top
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed
.010” (0.254mm) per side.
JEDEC Equivalent: TO-92
Drawing No. C04-101
MCP120/130
DS11184D-page 8 2001 Microchip Technology Inc.
3-Lead Plastic Small Outline Transistor (TT) (SOT23)
10501050
β
Mold Draft Angle Bottom 10501050
α
Mold Draft Angle Top 0.510.440.37.020.017.015BLead Width 0.180.140.09.007.006.004
c
Lead Thickness 10501050
φ
Foot Angle 0.550.450.35.022.018.014LFoot Length 3.042.922.80.120.115.110DOverall Length 1.401.301.20.055.051.047
E1
Molded Package Width 2.642.372.10.104.093.083EOverall Width 0.100.060.01.004.002.000A1Standoff §1.020.950.88.040.037.035A2Molded Package Thickness 1.121.010.89.044.040.035AOverall Height 1.92.076
p1
Outside lead pitch (basic) 0.96.038
p
Pitch 33
n
Number of Pins MAXNOMMINMAXNOMMINDimen sion Li mit s MILLIMETERSINCHES*Units
2
1
p
D
B
n
E
E1
L
c
β
φ
α
A2
A
A1
p1
* Controlling Parameter
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed
.010” (0.254mm) per side.
JEDEC Equivalent: TO-236
Drawing No. C04-104
§ Significant Characteristic
2001 Microchip Technology Inc. DS11184D-page 9
MCP120/130
8-Lead Plastic Small Outline (SN) – Narrow, 150 mil (SOIC
Foot A ngle φ048048
1512015120
β
Mold Draft Angle Bottom 1512015120
α
Mold Draft Angle Top 0.510.420.33.020.017.013BLead Width 0.250.230.20.010.009.008
c
Lead Thickness
0.760.620.48.030.025.019LFoot Length 0.510.380.25.020.015.010hChamfer Distance 5.004.904.80.197.193.189DOverall Length 3.993.913.71.157.154.146E1Molded Package Width 6.206.025.79.244.237.228EOverall Width 0.250.180.10.010.007.004
A1
Standoff §1.551.421.32.061.056.052A2Mold ed Packag e Thickness 1.751.551.35.069.061.053AOverall Height 1.27.050
p
Pitch 88
n
Numb er of Pin s MAXNOMMINMAXNOMMINDimension Limits MILLIMETERSINCHES*Units
2
1
D
n
p
B
E
E1
h
L
β
c
45°
φ
A2
α
A
A1
* Controlling Parameter
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed
.010” (0.254mm) per side.
JEDEC Equivalent: MS-012
Drawing No. C04-057
§ Significant Characteristic
MCP120/130
DS11184D-page 10 2001 Microchip Technology Inc.
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Microchip provides on-line support on the Microchip
World Wide Web (WWW) site.
The web site is used b y Micr ochip as a me ans to mak e
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2001 Microchip Technology Inc. DS11184D-page 11
MCP120/130
READER RESPONSE
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DS11184D
MCP120/130
MCP120/130
DS11184D-page 12 2001 Microchip Technology Inc.
NOTES:
2001 Microchip Technology Inc. DS11184D-page 13
MCP120/130
NOTES:
MCP120/130
DS11184D-page 14 2001 Microchip Technology Inc.
PRODUCT IDENTIFICATION SYSTEM
To order or to obtain information (e.g., on pricing or delivery), please refer to the factory or the listed sales offices .
Sales and Support
PART NO. X/XX
PackageTemperature
Range
Device
Device: MCP120: Supervisor circuit with open drain output
MCP120T: Supervisor circuit with open drain output
(tape & reel)
MCP130: Supervisor circuit with open drain output and
inter nal pull - up resistor
MCP130T: Supervisor circuit with open drain output and
internal pull-up resistor (tape & reel)
RESET/RESET VTRIP
Voltage 270 = 2.55 ≤ VTRIP ≤ 2.70
300 = 2.85 ≤ VTRIP ≤ 3.00
315 = 3.00 ≤ VTRIP ≤ 3.15
450 = 4.25 ≤ VTRIP ≤ 4.50
460 = 4.35 ≤ VTRIP ≤ 4.60
475 = 4.50 ≤ VTRIP ≤ 4.75
485 = 4.60 ≤ VTRIP ≤ 4.85
Bondout Opt ion:
(TO-92 Only) D = D Bond Option (see bond option chart)
F = F Bond Opt ion
G = G Bond Option
H = H Bond Option
Temperature Range: I = -40°C to +85°C (only offered in I)
Package : SN = SOIC (8-lead, 150 mil body)
TO = TO-92 (3-lead) [offered in bags only]
TT = SOT-23 (3-lead) [offered in tape & reel only]
Examples:
a) MCP120–270I/SN = VTRIP range of 2.55V -
2.70V, Industrial Temp., SOIC package
b) MCP120–300DI /T O = VTRIP range of 2. 85V -
3.00V, Bonding Option D, Industrial Temp.,
TO-92 package
c) MCP120T–315I/TT = V TRIP range of 3.00V -
3.15V, Industrial Temp., SOT-23 p ackage
d) MCP130–450I/SN = VTRIP range of 4.25V -
4.50V, Industrial Temp., SOIC package
e) MCP130–460F I/ T O = VTRIP range of 4.35V-
4.60V, Bonding Option F, Industrial Temp.,
TO-92 package
f) MCP130T–475I/TT = Tape & Reel, VTRIP
range of 4.50V - 4.75V, Industrial Temp.,
SOT-23 package
X
Bondout
Option
X
RESET/
RESET
VTRIP
Voltage
VSS
VDD
RST VSS VDD
RST
TO-92 wit h
‘D’ Bondout TO-92 with
‘F’ Bondout
MCP120
MCP130 MCP130
VSS
VDD RST VSS
VDD
RST
TO-92 with
‘G’ Bondout TO-92 with
‘H’ Bondout
MCP120
MCP130
MCP120
Data Sheets
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recom-
mended workarounds. To determi ne if an errata sheet exists for a particular device, please contact one of the following:
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2. The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277
3. The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data S heet (include Literature #) you are using.
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Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
2001 Microchip Technology Inc. DS11184D-page 15
MCP120/130
“All rights reserved. Copyright © 2001, Microchip
Technology Incorporated, USA. Information contained
in this publication regarding devi ce applicatio ns and the
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DS11184D-page 16
2001 Microchip Technology Inc.
All rights reserved. © 2001 Microchip Technology Incorporated. Printed in the USA. 2/01 Printed on recycled paper.
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1300 Terra Bella Avenue
Mountain View, CA 94043-1836
Tel : 650 -9 68- 924 1 Fax: 650-967-15 90
New York
150 Motor Parkway, Suite 202
Hauppauge, NY 11788
Tel: 631-273-5305 Fax: 631-273-5335
San Jose
Microchip Technology Inc.
2107 North First Street, Suite 590
San Jose, CA 95131
Tel: 408-436-7950 Fax: 408-436-7955
Toronto
6285 Northam Drive, Suite 108
Mississauga, Ontario L4V 1X5, C anada
Tel: 905-673-0699 Fax: 905-673-6509
ASIA/PACIFIC
Australia
Microchip Technology Australia Pty Ltd
Suite 22, 41 Rawson Street
Epping 212 1, NSW
Australia
Tel: 61-2-9868-6733 Fax: 61-2-9868-6755
China - Be ijing
Microchip Technology Beijing Office
Unit 915
New China Hong Kong Manhattan Bldg.
No. 6 Chaoyangmen Beidajie
Beijing, 100027, No. China
Tel: 86-10-85282100 Fax: 86-10-85282104
China - Shanghai
Microchip Technology Shanghai Office
Room 701, Bldg. B
Far East International Plaza
No. 317 Xian Xia Road
Shanghai, 200051
Tel: 86-21-6275-5700 Fax: 86-21-6275-5060
Hong Kong
Microchip Asia Pacific
RM 2101, Tower 2, Metroplaza
223 Hing Fong Road
Kwai Fong, N.T., Hong Kong
Tel: 852-2401-1200 Fax: 852-2401-3431
India
Microchip Technology Inc.
India Liaiso n Office
Divyasree Chambers
1 Floor, Wing A (A3/A4)
No. 11, O’Shaugnessey Road
Bangalore, 560 025, India
Tel: 91-80-2290061 Fax: 91-80-2290062
Japan
Microchip Technology Intl. Inc.
Benex S-1 6F
3-18-20, Shinyokohama
Kohoku -Ku, Yok oha ma -shi
Kanaga wa, 222 -0 033 , Japan
Tel: 81-45-471- 6166 Fax: 81-45-471-6122
ASIA/PACIFIC (continued)
Korea
Microc hip Technology Ko rea
168-1, Young bo Bld g. 3 Floor
Samsung-Dong, Kangnam-Ku
Seoul, Ko re a
Tel: 82-2-554-7200 Fax: 82-2-558-5934
Singapore
Microchip Technology Singapore Pte Ltd.
200 Midd le Ro ad
#07-02 Prime Centre
Singapore, 188980
Tel: 65-334-8870 Fax: 65-334-8850
Taiwan
Microc hip Technology Taiwan
11F-3, No. 207
Tung Hua North Road
Taipei, 105, Taiwan
Tel: 886-2-2717-7175 Fax: 886-2-2545-0139
EUROPE
Denmark
Microchip Technology Denmark ApS
Regus Business Centre
Lautrup hoj 1-3
Ballerup DK-2750 Denmark
Tel: 45 4420 9895 Fax: 45 4420 9910
France
Arizona Microchip Technology SARL
Parc d’Activite du Moulin de Massy
43 Rue du Saule Trap u
Batiment A - ler Et age
91300 Massy, France
Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79
Germany
Arizona Microchip Technology GmbH
Gustav-Heinemann Ring 125
D-81739 Munich, Germany
Tel: 49-89-627-144 0 Fax: 49-89-627-144-44
Germany
Analog Product Sales
Lochhamer Strasse 13
D-82152 Martinsried, Germany
Tel: 49-89-895650-0 Fax: 49-89-895650-22
Italy
Arizona Microchip Technology SRL
Centro Direzionale Colleoni
Palazzo Taurus 1 V. Le Colleoni 1
20041 Agrate Brianza
Milan, Italy
Tel: 39-039-65791-1 Fax: 39-039-6899883
United Kingdom
Arizona Microchip Technology Ltd.
505 Eskdale Road
Winnersh Triangle
Wokingham
Berksh ire, E ngla nd RG 41 5TU
Tel: 44 118 921 5869 Fax: 44-118 921-5820
01/30/01
