Document Outline
- 1.0 Electrical Characteristics
- 2.0 Applications information
- 3.0 Typical Performance Characteristics
- Figure 3-1: Supply Current vs. Temperature, SOT-23.
- Figure 3-2: Supply Current vs. Temperature, SC-70.
- Figure 3-3: Power-Down Reset Delay vs. Temperature, SOT-23.
- Figure 3-4: Supply Current vs. Temperature, SOT-23.
- Figure 3-5: Supply Current vs. Temperature, SC-70.
- Figure 3-6: Power-Down Reset Delay vs. Temperature, SOT-23.
- Figure 3-7: Power-Up Reset Time-out vs. Temperature, SOT-23.
- Figure 3-8: Power-up Reset Time-out vs. Temperature, SC-70.
- Figure 3-9: Normalized Reset Threshold vs. Temperature, SOT-23.
- Figure 3-10: Normalized Reset Threshold vs. Temperature, SC-70.
- 4.0 Packaging Information
2002 Microchip Technology Inc.
DS21661B-page 1
M
Features
Precision V
DD
Monitor for 2.5V, 3.0V, 3.3V, 5.0V
Nominal System Voltage Supplies
140 msec Minimum RESET Timeout Period
RESET Output to V
DD
= 1.0V (TCM809)
Low Supply Current, 9 A (typ.)
V
DD
Transient Immunity
Small 3-Pin SC-70 and SOT-23B Packages
No External Components
Push-pull RESET output
Temperature Range:
Applications
Computers
Embedded Systems
Battery Powered Equipment
Critical Microcontroller Power Supply Monitoring
Automotive
Typical Application Circuit
General Description
The TCM809 and TCM810 are cost effective system
supervisor circuits designed to monitor V
DD
in digital
systems and provide a reset signal to the host proces-
sor when necessary. No external components are
required.
The RESET output is typically driven active within
20 sec (SOT-23) or 65 sec (SC-70) of V
DD
falling
through the reset voltage threshold. RESET is main-
tained active for a minimum of 140 msec after V
DD
rises above the reset threshold. The TCM810 has an
active-high RESET output while the TCM809 has an
active-low RESET output. The output of the TCM809/
TCM810 is valid down to V
DD
= 1V. Both devices are
available in 3-Pin SOT-23B and SC-70 packages.
The TCM809/TCM810 are optimized to reject fast tran-
sient glitches on the V
DD
line. Low supply current of
9 A (typ., V
DD
= 3.3V) makes these devices suitable
for battery powered applications.
Pin Configurations
- Commercial, SC-70(E):
-40
C to +85
C
- Industrial, SOT-23, SC-70(V):
-40
C to +125
C
1
TCM809
V
DD
V
DD
V
DD
RESET
RESET
INPUT
(Active Low)
GND
GND
PIC
Microcontroller
3
2
SOT-23B/SC-70
Note: 3-Pin SOT-23B is equivalent to JEDEC TO-236
V
DD
TCM809 RESET
GND
TCM
809
TCM
810
1
2
TCM810 (RESET)
3
or
TCM809/TCM810
3-Pin Microcontroller Reset Monitors
TCM809/TCM810
DS21661B-page 2
2002 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (V
DD
to GND) ..........................................6.0V
RESET, RESET.................................... 0.3V to (V
DD
+0.3V)
Input Current, V
DD
.........................................................20 mA
Output Current, RESET, RESET...................................20 mA
dV/dt (V
DD
)............................................................. 100V/sec
Operating Temperature Range.................... 40C to +125C
Power Dissipation (T
A
= 70C):
3-Pin SOT-23B (derate 4 mW/C above +70C) ......320 mW
3-Pin SC-70 (derate 2.17 mW/C above +70C)......174 mW
Storage Temperature Range....................... 65C to +150C
Maximum Junction Temperature, T
J
.............................. 150C
*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 device at those or any other conditions
above those indicated in the operational listings of this specification is
not implied. Exposure to maximum rating conditions for extended peri-
ods may affect device reliability.
PIN FUNCTION TABLE
ELECTRICAL CHARACTERISTICS
NAME
FUNCTION
GND
Ground
RESET (TCM809) RESET push-pull output
remains low while V
DD
is below
the reset voltage threshold and
for 240 msec (140 msec min.)
after V
DD
rises above reset
threshold.
RESET (TCM810) RESET push-pull output
remains high while V
DD
is below
the reset voltage threshold and
for 240 msec (140 msec min.)
after V
DD
rises above reset
threshold.
V
DD
Supply voltage (+2.5V, +3.0V,
+3.3V, +5.0V)
V
DD
= Full Range, T
A
= Operating Temperature Range, unless otherwise noted. Typical values are at T
A
= +25C, V
DD
= 5V for L/M/J, 3.3V for T/S,
3.0V for R, and 2.5V for Z (Note 1).
Parameter
Sym
Min
Typ
Max
Units
Test Conditions
V
DD
Range
1.0
1.2
--
--
5.5
5.5
V
T
A
= 0C to +70C
T
A
= 40C to +125C
Supply Current (SOT-23)
I
CC
--
--
24
17
60
50
A
TCM8xxL/M:
V
DD
< 5.5V
TCM8xxR/S/T/Z: V
DD
< 3.6V
Supply Current (SC-70)
I
CC
--
--
12
9
30
25
A
TCM8xxL/M/J:
V
DD
< 5.5V
TCM8xxR/S/T/Z: V
DD
< 3.6V
Reset Threshold (Note 2)
V
TH
4.56
4.50
4.63
--
4.70
4.75
V
TCM8xxL:
T
A
= +25C
T
A
= 40C to +125C
4.31
4.25
4.38
--
4.45
4.50
TCM8xxM:
T
A
= +25C
T
A
= 40C to +125C
3.93
3.89
4.00
--
4.06
4.10
TCM809J:
T
A
= +25C
T
A
= 40C to +125C
3.04
3.00
3.08
--
3.11
3.15
TCM8xxT:
T
A
= +25C
T
A
= 40C to +125C
2.89
2.85
2.93
--
2.96
3.00
TCM8xxS:
T
A
= +25C
T
A
= 40C to +125C
2.59
2.55
2.63
--
2.66
2.70
TCM8xxR:
T
A
= +25C
T
A
= 40C to +125C
2.28
2.25
2.32
--
2.35
2.38
TCM8xxZ:
T
A
= +25C
T
A
= 40C to +125C
Reset Threshold Tempco
--
30
--
ppm/C
V
DD
to Reset Delay, SOT-23
--
20
--
sec
V
DD
= V
TH
to (V
TH
100 mV) (Note 2)
V
DD
to Reset Delay, SC-70
--
65
--
sec
V
DD
= V
TH
to (V
TH
100 mV) (Note 2)
Reset Active Time-out
Period, SOT-23
140
240
560
msec
Reset Active Time-out
Period, SC-70
140
320
560
msec
RESET Output Voltage Low
(TCM809)
V
OL
--
--
--
--
--
--
0.3
0.4
0.3
V
TCM809R/S/T/Z: V
DD
= V
TH
min, I
SINK
= 1.2 mA
TCM809L/M/J:
V
DD
= V
TH
min, I
SINK
= 3.2 mA
V
DD
> 1.0V, I
SINK
= 50 A
RESET Output Voltage High
(TCM809)
V
OH
0.8 V
DD
V
DD
1.5
--
--
--
--
V
TCM809R/S/T/Z: V
DD
> V
TH
max, I
SOURCE
= 500 A
TCM809L/M/J:
V
DD
> V
TH
max, I
SOURCE
= 800 A
Note
1:
Production testing done at T
A
= +25C, over temperature limits ensured by QC screen.
2:
RESET Output for TCM809, RESET Output for TCM810.
2002 Microchip Technology Inc.
DS21661B-page 3
TCM809/TCM810
RESET Output Voltage Low
(TCM810)
V
OL
--
--
--
--
0.3
0.4
V
TCM810R/S/T/Z: V
DD
= V
TH
max, I
SINK
= 1.2 mA
TCM810L/M:
V
DD
= V
TH
max, I
SINK
= 3.2 mA
RESET Output Voltage High
(TCM810)
V
OH
0.8 V
DD
--
--
V
1.8 < V
DD
< V
TH
min, I
SOURCE
= 150 A
V
DD
= Full Range, T
A
= Operating Temperature Range, unless otherwise noted. Typical values are at T
A
= +25C, V
DD
= 5V for L/M/J, 3.3V for T/S,
3.0V for R, and 2.5V for Z (Note 1).
Parameter
Sym
Min
Typ
Max
Units
Test Conditions
Note
1:
Production testing done at T
A
= +25C, over temperature limits ensured by QC screen.
2:
RESET Output for TCM809, RESET Output for TCM810.
TCM809/TCM810
DS21661B-page 4
2002 Microchip Technology Inc.
2.0
APPLICATIONS INFORMATION
2.1
V
DD
Transient Rejection
The TCM809/TCM810 provides accurate V
DD
monitor-
ing and reset timing during power-up, power-down, and
brownout/sag conditions. These devices also reject
negative-going transients (glitches) on the power sup-
ply line. Figure 2-1 shows the maximum transient dura-
tion vs. maximum negative excursion (overdrive) for
glitch rejection. Any combination of duration and over-
drive which lies under the curve will not generate a
reset signal.
FIGURE 2-1:
Maximum Transient Duration vs.
Overdrive for Glitch Rejection at 25C.
Combinations above the curve are detected as a
brownout or power-down condition. Transient immunity
can be improved by adding a capacitor in close proxim-
ity to the V
DD
pin of the TCM809/TCM810.
2.2
RESET Signal Integrity During
Power-Down
The TCM809 RESET output is valid to V
DD
= 1.0V.
Below this voltage the output becomes an "open cir-
cuit" and does not sink current. This means CMOS
logic inputs to the microcontroller will be floating at an
undetermined voltage. Most digital systems are com-
pletely shutdown well above this voltage. However, in
situations where RESET must be maintained valid to
V
DD
= 0V, a pull-down resistor must be connected from
RESET to ground to discharge stray capacitances and
hold the output low (Figure 2-2). This resistor value,
though not critical, should be chosen such that it does
not appreciably load RESET under normal operation
(100 k
will be suitable for most applications). Simi-
larly, a pull-up resistor to V
DD
is required for the
TCM810 to ensure a valid high RESET for V
DD
below
1.0V.
FIGURE 2-2:
The addition of R
1
at the RESET
output of the TCM809 ensures that the RESET output
is valid to V
DD
= 0V.
Reset Comparator Overdrive
[V
TH
- V
DD
] (mv)
400
240
160
320
80
0
1
5
100
1000
T
A
= +25C
V
TH
Duration
Overdrive
V
DD
TCM8XXL/M/J (SOT-23)
Maxi
m
u
m
T
r
an
sien
t
D
u
r
a
t
i
o
n
(
sec
)
TCM8XXZ/R/S/T
(SOT-23)
[V
TH
- V
DD
] (mv)
30
40
50
60
70
80
90
100
110
120
130
1
10
100
1000
Reset Comparator Overdrive (mV)
V
DD
to Reset Delay ( sec)
TCM8XXL/M/J (SC-70)
TCM8XXZ/R/S/T (SC-70)
TCM809
V
DD
V
DD
R
1
100 k
RESET
GND
2002 Microchip Technology Inc.
DS21661B-page 5
TCM809/TCM810
2.3
Controllers and Processors With
Bidirectional I/O Pins
Some microcontrollers have bi-directional reset pins.
Depending on the current drive capability of the control-
ler pin, an indeterminate logic level may result if there
is a logic conflict. This can be avoided by adding a
4.7 k
resistor in series with the output of the TCM809/
TCM810 (Figure 2-3). If there are other components in
the system which require a reset signal, they should be
buffered so as not to load the reset line. If the other
components are required to follow the reset I/O of the
microcontroller, the buffer should be connected as
shown with the solid line.
FIGURE 2-3:
Interfacing the TCM809 to a
Bidirectional RESET I/O.
TCM809
V
DD
RESET
GND
RESET
GND
Buffered RESET
To Other System
Components
Micro
4.7 k
controller
BUFFER
TCM809/TCM810
DS21661B-page 6
2002 Microchip Technology Inc.
3.0
TYPICAL PERFORMANCE CHARACTERISTICS
FIGURE 3-1:
Supply Current vs. Temperature,
SOT-23.
FIGURE 3-2:
Supply Current vs. Temperature,
SC-70.
FIGURE 3-3:
Power-Down Reset Delay vs.
Temperature, SOT-23.
FIGURE 3-4:
Supply Current vs. Temperature,
SOT-23.
FIGURE 3-5:
Supply Current vs. Temperature,
SC-70.
FIGURE 3-6:
Power-Down Reset Delay vs.
Temperature, SOT-23.
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Temperature (
C)
20
25
30
15
10
5
0
-40
0
20
-20
40
60
125
Supply Current (A)
35
VDD = 5V
VDD = 3V
VDD = 1V
100
80
TCM8xxZ/R/S/T, No Load
0
2
4
6
8
10
12
14
16
18
-40
-20
0
20
40
60
80
100
120
Temperature (C)
Supply Current ( A)
V
DD
= 1V
V
DD
= 3V
V
DD
= 5V
TCM8xx/R/S/T/Z, No Load
Temperature (C)
60
80
100
40
20
0
-40
0
20
-20
40
60
125
Power-Down Reset Delay (sec)
VOD = VTH VDD
VOD = 10 mV
VOD = 20 mV
VOD = 100 mV
VOD = 200 mV
100
80
TCM8xxZ/R/S/T
20
25
30
15
10
5
0
Temperature (
C)
-40
0
20
-20
40
60
125
Supply Current (A)
VDD = 5V
VDD = 3V
VDD = 1V
100
80
TCM8xxL/M/J, No Load
0
2
4
6
8
10
12
14
16
-40
-20
0
20
40
60
80
100
120
Temperature (C)
Supply Current ( A)
V
DD
= 5V
V
DD
= 3V
V
DD
= 1V
TCM8xx/L/M/J, No Load
Temperature (
C)
100
120
80
60
40
20
0
-40
0
20
-20
40
60
125
Power-Down Reset Delay (sec
)
140
VOD = VTH VDD
VOD = 10 mV
VOD = 20 mV
VOD = 100 mV
VOD = 200 mV
100
80
TCM8xxL/M/J
2002 Microchip Technology Inc.
DS21661B-page 7
TCM809/TCM810
FIGURE 3-7:
Power-Up Reset Time-out vs.
Temperature, SOT-23.
FIGURE 3-8:
Power-up Reset Time-out vs.
Temperature, SC-70.
FIGURE 3-9:
Normalized Reset Threshold vs.
Temperature, SOT-23.
FIGURE 3-10: Normalized Reset Threshold vs.
Temperature, SC-70.
Temperature (C)
240
245
250
235
230
225
-40
0
20
-20
40
80
125
Power-up Reset Timeout (sec)
TCM8xxL/M/J
TCM8xxZ/R/S/T
60
100
0
50
100
150
200
250
300
350
400
450
-40
-20
0
20
40
60
80
100
120
Temperature (C)
Power-up Reset Timeout (sec)
1.001
1.002
1.003
1.000
0.999
0.998
0.997
Temperature (
C)
-40
0
20
-20
40
60
125
Normalized Reset Threshold
100
80
0.997
0.998
0.999
1
1.001
-40
-20
0
20
40
60
80
100
120
Temperature (C)
Normalized Reset Threshold
SC-70
TCM809/TCM810
DS21661B-page 8
2002 Microchip Technology Inc.
4.0
PACKAGING INFORMATION
4.1
Package Marking Information
Part Number
SOT-23/SC-70
TCM809LENB
J1
TCM809MENB
J2
TCM809TENB
J3
TCM809SENB
J4
TCM809RENB
J5
TCM809JENB
J6
TCM809ZENB
J7
TCM809LVNB/TCM809LVLB
JZ
TCM809MVNB/TCM809MVLB
JY
TCM809TVNB/TCM809TVLB
JX
TCM809SVNB/TCM809SVLB
JV
TCM809RVNB/TCM809RVLB
JU
TCM809JVNB/TCM809JVLB
JT
TCM809ZVNB/TCM809ZVLB
JS (SC-70 package only)
Part Number
SOT-23/SC-70
TCM810LENB
K1
TCM810MENB
K2
TCM810TENB
K3
TCM810SENB
K4
TCM810RENB
K5
TCM810ZENB
K6
TCM810LVNB/TCM810LVLB
KZ
TCM810MVNB/TCM810MVLB
KY
TCM810TVNB/TCM810TVLB
KX
TCM810SVNB/TCM810SVLB
KV
TCM810RVNB/TCM810RVLB
KU
TCM810ZVNB/TCM810ZVLB
KT (SC-70 package only)
Legend: 1
Part Number + temperature range and voltage (two-digit code)
2
Part Number + temperature range and voltage (two-digit code)
3
Lot ID number
4
Year and work week
5
Year and work week
6
Year and work week
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.
3-Pin SOT-23B
3-Pin SC-70
Top Side
Bottom Side
2002 Microchip Technology Inc.
DS21661B-page 9
TCM809/TCM810
4.2
Taping Form
Component Taping Orientation for 3-Pin SOT-23 (JEDEC TO-236) Devices
PIN 1
Standard Reel Component Orientation
for 713 Suffix Device
(Mark Right Side Up)
W
P
User Direction of Feed
Carrier Tape, Number of Components Per Reel and Reel Size:
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
3-Pin SOT-23B
8 mm
4 mm
3000
7 in.
Device
Marking
Component Taping Orientation for 3-Pin SC-70 (EIAJ) Devices
PIN 1
Device
Marking
Standard Reel Component Orientation
for 713 Suffix Device
(Mark Right Side Up)
W
P
User Direction of Feed
Carrier Tape, Number of Components Per Reel and Reel Size:
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
3-Pin SC-70
8 mm
4 mm
3000
7 in.
TCM809/TCM810
DS21661B-page 10
2002 Microchip Technology Inc.
4.3
Packaging Information
.021 (0.54)
.015 (0.37)
.055 (1.40)
.047 (1.20)
.104 (2.64)
.083 (2.10)
.120 (3.05)
.105 (2.67)
.007 (0.18)
.003 (0.08)
.010 (0.25)
.005 (0.13)
.024 (0.60)
.017 (0.44)
.004 (0.10)
.001 (0.02)
.040 (1.02)
.031 (0.79)
.081 (2.05)
.070 (1.78)
8 MAX.
3-Pin SOT-23B
3-Pin SC-70
.053 (1.35)
.045 (1.15)
PIN 1
.094 (2.40)
.071 (1.80)
.016 (0.40)
.010 (0.25)
.051 (1.30)
REF.
.087 (2.20)
.071 (1.80)
.039 (1.00)
.031 (0.80)
.004 (0.10)
.000 (0.00)
.012 (0.30)
.004 (0.10)
10 MAX.
.007 (0.18)
.004 (0.10)
2002 Microchip Technology Inc.
DS21661B-page 11
TCM809/TCM810
Systems Information and Upgrade Hot Line
The Systems Information and Upgrade Line provides
system users a listing of the latest versions of all of
Microchip's development systems software products.
Plus, this line provides information on how customers
can receive any currently available upgrade kits.The
Hot Line Numbers are:
1-800-755-2345 for U.S. and most of Canada, and
1-480-792-7302 for the rest of the world.
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013001
TCM809/TCM810
DS21661B-page 12
2002 Microchip Technology Inc.
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DS21661B
TCM809/TCM810
2002 Microchip Technology Inc.
DS21661B-page13
TCM809/TCM810
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mended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1.
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PART NO.
X
X
Temperature
V
DD
Reset
Device
Device:
TCM809: Supervisor circuit with active-low RESET output
TCM810: Supervisor circuit with active-high RESET output
V
DD
Reset Threshold: L
= 4.63V
M
= 4.38V
J
= 4.00V
T
= 3.08V
S
= 2.93V
R
= 2.63V
Z
= 2.32V
Temperature Range:
E
= -40C to +85C
V
= -40C to +125C
Package:
NB713 = SOT-23B, 3-pin (Tape and Reel)
LB713 = SC-70, 3-pin (Tape and Reel)
Examples:
a)
TCM809
LENB713: SOT-23B-3-TR, Microcon-
troller 4.63V Reset Monitor, -40C to +85C,
Tape and Reel.
b)
TCM809
LVLB713: SC-70-3-TR, Microcontrol-
ler 4.63V Reset Monitor, -40C to +125C, Tape
and Reel.
c)
TCM809
LVNB713: SOT-23B-3-TR, Microcon-
troller 4.63V Reset Monitor, -40C to +125C,
Tape and Reel.
a)
TCM810MENB713: SOT-23B-3-TR, Microcon-
troller 2.63V Reset Monitor, -40
C to +85
C,
Tape and Reel.
b)
TCM810RVLB713: SOT-23B-3-TR, Microcon-
troller 2.63V Reset Monitor, -40C to +125C,
Tape and Reel.
c)
TCM810TVLB713: SC-70-3-TR, Microcontrol-
ler 2.63V Reset Monitor, -40C to +125C, Tape
and Reel.
Range
Threshold
XXXXX
Package
TCM809/TCM810
DS21661B-page 14
2002 Microchip Technology Inc.
NOTES:
2002 Microchip Technology Inc.
DS21661B - page 15
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip's products as critical com-
ponents in life support systems is not authorized except with
express written approval by Microchip. No licenses are con-
veyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, FilterLab,
K
EE
L
OQ
, MPLAB, PIC, PICmicro, PICMASTER, PICSTART,
PRO MATE, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, microID,
microPort, Migratable Memory, MPASM, MPLIB, MPLINK,
MPSIM, MXDEV, PICC, PICDEM, PICDEM.net, rfPIC, Select
Mode and Total Endurance are trademarks of Microchip
Technology Incorporated in the U.S.A.
Serialized Quick Term Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
2002, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999. The
Company's quality system processes and
procedures are QS-9000 compliant for its
PICmicro
8-bit MCUs, K
EE
L
OQ
code hopping
devices, Serial EEPROMs and microperipheral
products. In addition, Microchip's quality
system for the design and manufacture of
development systems is ISO 9001 certified.
DS21661B-page 16
2002 Microchip Technology Inc.
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*DS21661B*
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