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MCP130T-300I/TT

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
MCP120/130
DS11184D-page 4 2001 Microchip Technology Inc.
2.0 APPLICATIONS INFORMATION
2.1 The Need for Supervisory Circuits
For many of today’s microcontroller applications, care
must be taken to prevent low power conditions that can
cause many different system problems. The 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 system designers implementing POR circuits are
concerned about the minimum pulse width required to
cause a reset. Figure 2-2 shows typical transient
voltage below the trip point (V
TRIP - VDD) vs. transient
duration. It shows that the farther below the trip point
the transient pulse goes, the duration of the pulse
required to cause a reset gets shorter. A 0.1 µF bypass
cap mounted as close as possible to the VDD pin pro-
vides additional transient immunity.
Figure 2-2: Typical Transient Response
Microcontroller
MCLR
VSS
RST
MCP120
or
RESET
VSS
VDD
VDD
Bypass
Capacitor
VDD
TIME
SUPPLY VOLTAGE
0
0
5V
VTRIP
MAX
VTRIP
MIN
Transient
Duration
(VTRIP
MIN -
VDD)
0123
V
TRIP - 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 (t
RPU)
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 V
DD values and
temperatures.
Figure 2-3: tRPU vs. Temperature
Figure 2-4: I
DD vs. Temperature
Figure 2-5: Normalized V
TRIP vs. Temperature
Figure 2-6: V
OL vs. IOL
Figure 2-7: Normalized I
OL 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
(mV)
1248
600
700
800
14 16 18 20
VDD = 3.5V
VDD = 1.5V
VDD = 4.5V
VDD = 2.5V
TA = +25°C
I
OL (mA)
-40 -20 20 60
TEMPERATURE (°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 (week of January 1 is week ‘01’)
NNN Alphanumeric traceability code
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line thus limiting the number of available characters
for customer specific information.
* Standard OTP marking consists of Microchip part number, year code, week code, and traceability code.
For OTP marking beyond this, certain price adders apply. Please check with your Microchip 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
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MCP130T-300I/TT

Mfr. #:
Buy MCP130T-300I/TT
Manufacturer:
Microchip Technology
Description:
Supervisory Circuits w/5K Pull-Up Low
Lifecycle:
New from this manufacturer.
Delivery:
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