MIC826
Voltage Supervisor with Watchdog Timer,
Manual Reset, and Dual Outputs
Features
General Description
• Precision 1.8V to 5V Power Supply Monitor
• ±0.5% Threshold Accuracy at TA = +25°C
• ±1.5% Threshold Accuracy from TA = –40°C to
+125°C
• 3.8 µA Supply Current (MIC826S/R/T/W/Y/Z)
• 4.8 µA Supply Current (MIC826L/M)
• Manual Reset Input
• 140 ms (min.) Reset Timeout Period
• 1.6s (typ.) Watchdog Timeout Period
• Float Watchdog Timer Input to Disable Watchdog
Timer
• Active-High and Active-Low Push-Pull Outputs
• Ensured Reset Output Valid to VCC = 1V
• –40°C to +125°C Junction Temperature Range
• 6-Lead 1.6 mm x 1.6 mm x 0.5 mm UDFN
Package
• 50% Smaller Version of MAX823/MAX824/
MAX825/ADM823/ADM824/ADM825
• 8x Lower Watchdog Input Current than the
Competition
The MIC826 is a low-current, ultra-small, voltage
supervisor with manual reset input, watchdog timer,
and active-high and active-low push-pull outputs. The
reset outputs are asserted and held when the supply
voltage falls below the factory-programmed threshold
voltage, when the /MR pin is pulled low, or if the
watchdog times out. Reset is asserted for the reset
timeout delay after the supply voltage increases above
the rising threshold voltage or when manual reset input
is asserted high.
Applications
• Microprocessor Systems
• Computers
• Intelligent Instruments
2022 Microchip Technology Inc. and its subsidiaries
The MIC826 features an integrated pull-up resistor on
the /MR. An active-low push-pull reset output (/RESET)
and an active-high reset output (RESET) provide
flexibility
when
interfacing
with
various
microcontrollers, PMICs, or load switches. The
watchdog input can be left unconnected for
applications that do not require watchdog monitoring.
The MIC826 consumes a quiescent current of only
3.8 µA and is offered in a tiny, space-saving, 6-lead
1.6 mm x 1.6 mm UDFN package. It is rated for the
–40°C to +125°C temperature range.
Package Type
MIC826
6-Lead 1.6 mm x 1.6 mm UDFN (MT)
(Top View)
/RESET
1
GND
2
RESET
3
EP
6
VCC
5
/MR
4
WDI
DS20006668A-page 1
MIC826
Typical Application Circuit
Functional Block Diagram
VCC
RESET
GENERATOR
/RESET
RESET
VCC
1.2V
REFERENCE
/MR
WATCHDOG
EDGE
DETECTOR
WATCHDOG
TIMER
WDI
WATCHDOG
INPUT
MONITOR
GND
DS20006668A-page 2
2022 Microchip Technology Inc. and its subsidiaries
MIC826
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Voltage (VCC) ................................................................................................................................ –0.3V to +6.0V
/MR, WDI, RESET, /RESET ..............................................................................................................–0.3V to VCC + 0.3V
Input Current, All Pins except (RESET, /RESET)....................................................................................................20 mA
Output Current (RESET, /RESET) ..........................................................................................................................20 mA
ESD Rating (Note 1) Human Body Model............................................................................................................... 1.5 kV
ESD Rating (Note 1) Machine Model ........................................................................................................................200V
Operating Ratings ‡
Supply Voltage (VCC) ................................................................................................................................... +1V to +5.5V
Watchdog Input (WDI) .................................................................................................................................... 0V to +VCC
† Notice: Stresses above those listed under “Absolute 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 sections of this specification is not intended. Exposure to maximum rating conditions for extended
periods may affect device reliability.
‡ Notice: The device is not guaranteed to function outside its operating ratings.
Note 1: Devices are ESD sensitive; use proper handling precautions. Human body model, 1.5 kΩ in series with
100 pF.
ELECTRICAL CHARACTERISTICS
Electrical Characteristics: VCC = 4.7V to 5.5V for MIC826L, VCC = 4.5V to 5.5V for MIC826M, VCC = 3.15V to 3.6V
for MIC826T, VCC = 3.0V to 3.6V for MIC826S, VCC = 2.7V to 3.6V for MIC826R, VCC = 2.38V to 2.75V for MIC826Z,
VCC = 2.25V to 2.75V for MIC826Y, VCC = 1.75V to 2.0V for MIC826W; TJ = +25˚C, bold values (Note 2) valid for
–40˚C ≤ TJ ≤ +125˚C, unless otherwise noted. (Note 1)
Parameter
Symbol
Min.
Typ.
Max.
Units
VCC
1.0
—
5.5
V
—
4.8
14
—
3.8
8.4
4.602
4.625
4.648
4.556
—
4.694
4.353
4.375
4.397
4.309
—
4.441
Conditions
Power Supply Input
Supply Voltage
Supply Current
IVCC
µA
—
MIC826L/M (WDI and /MR
unconnected)
MIC826T/S/R/Z/Y/W (WDI and /MR
unconnected)
Reset Threshold Voltage
Reset Threshold Voltage
VRST
L (falling) TA = 25°C
L (falling) –40°C ≤ TA ≤ +125°C
M (falling) TA = 25°C
M (falling) –40°C ≤ TA ≤ +125°C
T (falling) TA = 25°C
3.060
3.075
3.090
3.029
—
3.121
T (falling) –40°C ≤ TA ≤ +125°C
2.910
2.925
2.940
2.881
2.969
S (falling) TA = 25°C
—
2.612
2.625
2.638
2.586
—
2.664
2.303
2.315
2.327
2.280
—
2.350
2.177
2.188
2.199
2.155
—
2.221
1.657
1.665
1.673
1.640
—
1.690
2022 Microchip Technology Inc. and its subsidiaries
V
S (falling) –40°C ≤ TA ≤ +125°C
R (falling) TA = 25°C
R (falling) –40°C ≤ TA ≤ +125°C
Z (falling) TA = 25°C
Z (falling) –40°C ≤ TA ≤ +125°C
Y (falling) TA = 25°C
Y (falling) –40°C ≤ TA ≤ +125°C
W (falling) TA = 25°C
W (falling) –40°C ≤ TA ≤ +125°C
DS20006668A-page 3
MIC826
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics: VCC = 4.7V to 5.5V for MIC826L, VCC = 4.5V to 5.5V for MIC826M, VCC = 3.15V to 3.6V
for MIC826T, VCC = 3.0V to 3.6V for MIC826S, VCC = 2.7V to 3.6V for MIC826R, VCC = 2.38V to 2.75V for MIC826Z,
VCC = 2.25V to 2.75V for MIC826Y, VCC = 1.75V to 2.0V for MIC826W; TJ = +25˚C, bold values (Note 2) valid for
–40˚C ≤ TJ ≤ +125˚C, unless otherwise noted. (Note 1)
Parameter
Reset Threshold Hysteresis
Symbol
Min.
Typ.
Max.
—
10
—
—
5
—
—
40
—
tRP
140
200
280
ms
—
tRD
—
10
—
µs
—
VCC –
1.5
—
—
0.8 x
VCC
—
—
0.8 x
VCC
—
—
W: VCC = VRST(MAX),
ISOURCE = 20 µA
—
—
0.4
L, M: VCC = VRST(MIN),
ISINK = 3.2 mA
—
—
0.3
—
—
0.3
—
—
0.3
—
—
800
VRST_HYS
Reset Threshold Temperature
Coefficient
Reset Timeout Period
Reset Time
VCC to /RESET Delay
Reset Outputs (/RESET, RESET)
/RESET Output Voltage High
/RESET Output Voltage Low
VOH
VOL
/RESET Output Short-Circuit
Current (Note 3)
ISC
RESET Output Voltage High
VOH
RESET Output Voltage Low
VOL
Units
mV
tWD
Watchdog Pulse Width
L, M
T, S, R, Z, Y, W
ppm/°C —
L, M: VCC = VRST(MAX),
ISOURCE = 120 µA
V
V
T, S, R, Z, Y: VCC = VRST(MAX),
ISOURCE = 30 µA
T, S, R, Z, Y, W: VCC = VRST(MIN),
ISINK = 1.2 mA
TA = 0˚C to +70˚C, VCC = 1V,
ISINK = 50 µA
VCC = 1.2V, ISINK =100 µA
µA
L, M: /RESET = 0V, VCC = 5.5V
T, S, R, Z, Y, W: /RESET = 0V,
VCC = 3.6V
—
—
400
0.8 x
VCC
—
—
—
—
0.4
—
—
0.3
1.12
1.60
2.40
sec.
—
50
—
—
ns
—
V
V
Watchdog Input (WDI) (Note 4)
Watchdog Timeout Period
Conditions
VCC > 1.6V, ISOURCE = 150 µA
L, M: VCC = VRST(MAX),
ISINK = 3.2 mA
T, S, R, Z, Y, W: VCC = VRST(MAX),
ISINK = 1.2 mA
Watchdog Input Low Voltage
VIL
—
—
V
—
Watchdog Input High Voltage
VIH
0.7 x
VCC
0.3 x
VCC
—
—
V
—
Watchdog Input Current
IIN
—
15
25
–25
–15
—
µA
WDI = VCC
WDI = 0V
Manual Reset Input (/MR)
Input Low Voltage
VIL
—
—
V
—
Input High Voltage
VIH
0.7 x
VCC
0.3 x
VCC
—
—
V
—
DS20006668A-page 4
2022 Microchip Technology Inc. and its subsidiaries
MIC826
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics: VCC = 4.7V to 5.5V for MIC826L, VCC = 4.5V to 5.5V for MIC826M, VCC = 3.15V to 3.6V
for MIC826T, VCC = 3.0V to 3.6V for MIC826S, VCC = 2.7V to 3.6V for MIC826R, VCC = 2.38V to 2.75V for MIC826Z,
VCC = 2.25V to 2.75V for MIC826Y, VCC = 1.75V to 2.0V for MIC826W; TJ = +25˚C, bold values (Note 2) valid for
–40˚C ≤ TJ ≤ +125˚C, unless otherwise noted. (Note 1)
Parameter
Min.
Typ.
Max.
Units
/MR Pulse Width
1.0
—
—
µs
—
/MR Noise Immunity (pulse
width with no reset)
—
100
—
ns
—
/MR to RESET Delay
—
500
—
ns
—
/MR Internal Pull-Up Resistor
35
52
75
kΩ
—
Note 1:
2:
3:
4:
Symbol
Conditions
Specifications are for packaged products only.
Overtemperature limits are ensured by design and not product tested.
The /RESET short-circuit current is the maximum pull-up current when /RESET is driven low by µP bidirectional reset pin.
The WDI input is designed to drive a three-state output device with a 10 µA maximum leakage current and
a maximum capacitance of 200 pF.
TEMPERATURE SPECIFICATIONS
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Maximum Junction Temperature Range TJ(MAX)
–40
—
+150
°C
—
Operating Junction Temperature
Range
TJ
–40
—
+125
°C
Note 1
Storage Temperature Range
TS
–65
—
+150
°C
—
JA
—
92.4
—
°C/W
—
JC
—
56.4
—
°C/W
—
Temperature Ranges
Package Thermal Resistances
Thermal Resistance, UDFN 6-Ld
Note 1:
The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable
junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the
maximum allowable power dissipation will cause the device operating junction temperature to exceed the
maximum +125°C rating. Sustained junction temperatures above +125°C can impact the device reliability.
VCC
VRST
VRST
1V
1V
/RESET
RESET
tRP
tRD
tRP
tRD
GND
FIGURE 1-1:
Timing Diagram.
2022 Microchip Technology Inc. and its subsidiaries
DS20006668A-page 5
MIC826
2.0
TYPICAL PERFORMANCE CURVES
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.
14
/MR =OPEN
WDI = OPEN
SUPPLY CURRENT (μA)
6
VCC TO RESET DELAY (μs)
7
MIC826W
5
4
3
MIC826L
MIC826Y
2
1
0
12
10
8
6
4
VCC
FALLING
/MR = OPEN
WDI = OPEN
2
0
0
1
2
3
4
5
6
-40
-15
10
FIGURE 2-1:
Voltage.
Supply Current vs. Input
FIGURE 2-4:
Temperature.
/MR = OPEN
WDI = OPEN
6
/MR TO RESET DELAY (ns)
SUPPLY CURRENT (μA)
60
85
VCC to RESET Delay vs.
800
7
MIC826L, VCC = 5.5V
5
4
3
MIC826Y, VCC = 2.75V
2
MIC826W, VCC = 2V
1
700
600
500
400
300
200
/MR = SWITCH
WDI = OPEN
100
0
0
-40
-15
10
35
60
-40
85
-15
TEMPERATURE (°C)
FIGURE 2-2:
Temperature.
10
35
60
85
TEMPERATURE (°C)
FIGURE 2-5:
Temperature.
Supply Current vs.
/MR to RESET Delay vs.
2.0
WATCHDOG TIMEOUT PERIOD (s)
250
RESET TIMEOUT PERIOD (ms)
35
TEMPERATURE (°C)
INPUT VOLTAGE (V)
200
150
100
50
/MR=OPEN
WDI = OPEN
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
-40
-15
10
35
60
85
-40
FIGURE 2-3:
Temperature.
DS20006668A-page 6
RESET Timeout Period vs.
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
FIGURE 2-6:
vs. Temperature.
Watchdog Timeout Period
2022 Microchip Technology Inc. and its subsidiaries
MIC826
RESET THRESHOLD VOLTAGE(V)
1.060
1.040
1.020
1.000
0.980
0.960
0.940
0.920
-40
-15
10
35
60
85
TEMPERATURE (°C)
FIGURE 2-7:
Normalized Reset
Threshold vs. Temperature.
TRANSIENT DURATION (μs)
25
/MR = OPEN
WDI = OPEN
C1 = OPEN
FVCC = 10kHz
20
15
MIC826Y
10
MIC826L
MIC826W
5
0
0
50 100 150 200 250 300 350 400 450 500
OVERDRIVE (mV)
FIGURE 2-8:
vs. Overdrive.
Supply Transient Duration
2022 Microchip Technology Inc. and its subsidiaries
DS20006668A-page 7
MIC826
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
Pin Number
PIN FUNCTION TABLE
Pin Name
Description
1
/RESET
Active-Low Reset Output. Pulses low for 200 ms when triggered, and remains low
whenever VCC is below the reset threshold or when /MR is a logic low. It remains low
for 200 ms after one of the following occurs: VCC rises above the reset threshold, the
watchdog triggers a reset, or /MR goes low to high.
2
GND
Supply Ground.
RESET
Active-High Reset Output. Pulses high for 200 ms when triggered, and remains high
whenever VCC is below the reset threshold or when /MR is a logic low. It remains
high for 200 ms after one of the following occurs: VCC rises above the reset
threshold, the watchdog triggers a reset, or /MR goes low to high. RESET is the
inverse of /RESET.
WDI
Watchdog Input. If WDI remains either high or low for longer than the watchdog
timeout period, the internal watchdog timer runs out and a reset is triggered. The
internal watchdog timer clears whenever reset is asserted, or whenever WDI sees a
rising or falling edge. If WDI is left unconnected or is connected to a three-stated
buffer output, the watchdog feature is disabled.
/MR
Manual Reset Input. A logic low on /MR asserts reset. Reset remains asserted as
long as /MR is held low and for 200 ms after /MR returns high. The active-low input
has an internal 52 kΩ pull-up resistor. It can be driven from a CMOS logic line or
shorted to ground with a switch. Leave open or connect to VCC if unused.
6
VCC
Supply Voltage Pin. VCC is the input to the supply voltage monitor. When the supply
voltage falls below the reset threshold voltage, reset outputs (/RESET and RESET)
are triggered immediately. When the supply voltage rises above the reset threshold
plus hysteresis voltage, the reset outputs remain asserted for the duration of the
reset timeout period. A decoupling ceramic capacitor (minimum 0.1 μF) must be
connected between VCC and GND close to the pins.
EP
ePAD
Exposed Pad. Connect to GND.
3
4
5
DS20006668A-page 8
2022 Microchip Technology Inc. and its subsidiaries
MIC826
4.0
FUNCTIONAL DESCRIPTION
4.1
Design and Product Advantages
The MIC826 is a voltage supervisor reset IC with a
manual reset input, watchdog input, and dual reset
outputs. The MIC826 asserts and holds a reset when
the supply voltage falls below the factory-programmed
threshold voltage, when /MR is at low logic level, or
when watchdog input times out. Reset is asserted for a
fixed reset timeout period after the supply voltage
increases above the rising threshold voltage or when
the manual reset input is asserted high.
The MIC826 features an active-low, push-pull reset
output (/RESET) and an active-high, push-pull reset
output (RESET). It also contains 52 kΩ pull-up
resistors on the /MR input to make it easy to connect to
pushbutton inputs. The MIC826 also features a
watchdog (WDI) input.
4.2
Manual Reset Input (/MR)
The /MR input pin has integrated pull-up resistors to
keep the current consumption low when the pushbutton
switch is pressed.
4.3
Reset Outputs (/RESET and
RESET)
There are two reset outputs: /RESET and RESET. Both
outputs are push-pull, which eliminates the need for
pull-up resistors. The RESET output is the inverse of
the /RESET output.
4.4
4.4.1
FIGURE 4-1:
4.4.2
Manual Reset Function.
WHEN FUNCTIONING AS A
VOLTAGE SUPERVISOR
The /RESET pin is asserted whenever VCC falls below
the reset threshold voltage, VRST (VCC < VRST). The
VCC pin circuitry includes hysteresis to prevent
/RESET or RESET pin chattering due to noise. The
/RESET pin remains asserted for the duration of the
reset timeout delay (tRP) after VCC has risen above the
reset threshold voltage plus the hysteresis. The reset
function ensures that a microprocessor is properly
reset and powers up in a known condition after a power
failure. The /RESET remains valid with VCC as low as
1V. The RESET output is a complement of the /RESET
output.
Asserting /RESET and RESET
Outputs
WHEN FUNCTIONING AS A
MANUAL RESET
The reset outputs /RESET and RESET are asserted
while the /MR pin is driven low. Both reset outputs
remain asserted for a factory-programmed reset
timeout delay time, tRP. The typical value of a reset
timeout period is 200 ms. The /RESET pin is driven low
while the RESET pin is driven high whenever /MR is
pulled low.
FIGURE 4-2:
Function.
4.4.3
Voltage Supervisor
WATCHDOG INPUT
The MIC826 has an on-chip watchdog timer that can
reset the microprocessor if it fails to strobe the WDI
input within a preset timeout period (tWD). If the WDI pin
is left unconnected, this function is disabled. The
watchdog timeout period starts when either of the reset
outputs becomes inactive and either a high-to-low or
low-to-high transition occurs before the watchdog
timeout period (tWD). If the watchdog timer times out,
then the reset outputs will assert and stay asserted for
a reset timeout period (tRP). The watchdog timer is also
cleared whenever the reset outputs are asserted by
2022 Microchip Technology Inc. and its subsidiaries
DS20006668A-page 9
MIC826
/MR, or if VCC falls below VRST. The watchdog timer
starts again whenever the reset outputs are
de-asserted.
VRST
4.7
The MIC826 is a supervisory circuit that monitors the
power supply voltage level. If the power supply voltage
level falls below the factory-programmed threshold
level, then the reset signals are asserted. The MIC826
maintains the reset states with VCC as low as 1V.
4.8
/RESET*
tRP
tWD
tRP
Supply Bypass Capacitor
An optional 0.1 µF input bypass capacitor can be
placed from VCC (Pin 6) to GND (Pin 2) to increase
glitch rejection.
5.0
WDI
*RESET ON THE MIC826 IS THE INVERSE OF /RESET
FIGURE 4-3:
4.5
Reset Valid Up to VCC = 1V
TYPICAL APPLICATIONS
VCC
Watchdog Timing.
U1
4.6
4
WDI
/RESET
The MIC826 is relatively immune to small
negative-going VCC glitches below the reset threshold.
As shown in Figure 4-4, the overdrive voltage is the
difference between the threshold voltage and the
minimum point of the VCC glitch. Typically, an overdrive
of 100 mV with duration of 2 μs or less will not cause a
reset.
OUT
EN
GND
5
/MR
RESET
/MR
3
GND
2
FIGURE 5-1:
Good Function.
MIC826 for Precision Power
VCC
U1
6
VIN
VCC
4
WDI
/RESET
MIC94044
1
OUT
EN
GND
MIC826
VRST + VHYST
OVERDRIVE
VCC
5
/MR
RESET
3
GLITCH DURATION
0V
/MR
GND
SW1
/RESET
VOL
MIC5365
1
MIC826
SW1
VCC Transient
VIN
VCC
Watchdog Input Current
The WDI input current is the current sourced or sinked
by the WDI pin when the WDI input is driven low or
high, respectively. The WDI input is designed to drive a
tri-state output device with a 10 µA maximum leakage
current and a maximum capacitance of 200 pF.
6
tRP
FIGURE 4-4:
VCC Transient.
2
FIGURE 5-2:
Switch.
MIC826 Used for Load
VCC
U1
6
VCC
RESET
5
/MR
MIC826
WDI
3
4
VIN
RESET
I/O
μP
GND
/MR
/RESET
SW1
1
GND
2
FIGURE 5-3:
MIC826 Used for
Microcontroller Reset with Watchdog Input.
DS20006668A-page 10
2022 Microchip Technology Inc. and its subsidiaries
MIC826
6.0
EVALUATION BOARD SCHEMATIC
VCC
1V to 5.5V
TP9
U1
6
VCC
C1
0.1μF
VCC
5
J5
/RESET
/MR
GND
TP8
/MR
J2
MIC826
J12
J6
4
WDI
WDI
SW1
J3
RESET
J7
GND
2
FIGURE 6-1:
6.1
1
3
J4
RESET
MIC826 Evaluation Board Schematic.
Bill of Materials
TABLE 6-1:
BILL OF MATERIALS
Item
Part Number
Manufacturer
C1
GRM188R71C104KA01D
Murata
U1
MIC826xYMT
Microchip
2022 Microchip Technology Inc. and its subsidiaries
Description
Qty.
0.1 µF, 16V capacitor, X7R, 0603
1
Voltage Supervisor with Watchdog Timer, Manual
Reset, and Dual Outputs
1
DS20006668A-page 11
MIC826
7.0
PCB LAYOUT RECOMMENDATIONS
FIGURE 7-1:
Top Layer.
FIGURE 7-2:
Bottom Layer.
DS20006668A-page 12
2022 Microchip Technology Inc. and its subsidiaries
MIC826
8.0
PACKAGING INFORMATION
8.1
Package Marking Information
6-Lead UDFN*
Example
XXX
TABLE 8-1:
82L
MARKING CODES
Part Number
Marking Code
Nominal Threshold Voltage
MIC826LYMT
82L
4.625
MIC826MYMT
82M
4.375
MIC826TYMT
82T
3.075
MIC826SYMT
82S
2.925
MIC826RYMT
82R
2.625
MIC826ZYMT
82Z
2.315
MIC826YYMT
82Y
2.188
MIC826WYMT
82W
1.665
Legend: XX...X
Y
YY
WW
NNN
e3
*
Product code or customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC® designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( e3 )
can be found on the outer packaging for this package.
●, ▲, ▼ Pin one index is identified by a dot, delta up, or delta down (triangle
mark).
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. Package may or may not include
the corporate logo.
Underbar (_) symbol may not be to scale.
Note:
If the full seven-character YYWWNNN code cannot fit on the package, the following truncated codes are
used based on the available marking space:
6 Characters = YWWNNN; 5 Characters = WWNNN; 4 Characters = WNNN; 3 Characters = NNN;
2 Characters = NN; 1 Character = N
2022 Microchip Technology Inc. and its subsidiaries
DS20006668A-page 13
MIC826
6-Lead 1.6 mm x 1.6 mm UDFN Package Outline and Recommended Land Pattern
DS20006668A-page 14
2022 Microchip Technology Inc. and its subsidiaries
MIC826
2022 Microchip Technology Inc. and its subsidiaries
DS20006668A-page 15
MIC826
DS20006668A-page 16
2022 Microchip Technology Inc. and its subsidiaries
MIC826
APPENDIX A:
REVISION HISTORY
Revision A (April 2022)
• Converted Micrel document MIC826 to Microchip
data sheet DS20006668A.
• Minor text changes throughout.
2022 Microchip Technology Inc. and its subsidiaries
DS20006668A-page 17
MIC826
NOTES:
DS20006668A-page 18
2022 Microchip Technology Inc. and its subsidiaries
MIC826
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, contact your local Microchip representative or sales office.
Part Number
X
X
XX
-XX
Device
Nominal
Threshold
Voltage
Temp.
Range
Package
Media Type
Device:
MIC826:
Voltage Supervisor with Watchdog Timer,
Manual Reset, and Dual Outputs
L = 4.625
M = 4.375
T = 3.075
Nominal Thresh- S = 2.925
old Voltage:
R = 2.625
Z = 2.315
Y = 2.188
W = 1.665
Temperature
Range:
Y
Package:
MT =
6-Lead 1.6 mm x 1.6 mm UDFN
Media Type:
TR
T5
5,000/Reel
500/Reel
=
=
=
–40°C to +125°C
Examples:
a) MIC826LYMT-TR:
MIC826, 4.625 Nom. Threshold Voltage, –40°C to +125°C
Temp. Range, 6-Lead UDFN,
5,000/Reel
b) MIC826MYMT-T5:
MIC826, 4.375 Nom. Threshold Voltage, –40°C to +125°C
Temp. Range, 6-Lead UDFN,
500/Reel
c) MIC826TYMT-TR:
MIC826, 3.075 Nom. Threshold Voltage, –40°C to +125°C
Temp. Range, 6-Lead UDFN,
5,000/Reel
d) MIC826SYMT-T5:
MIC826, 2.925 Nom. Threshold Voltage, –40°C to +125°C
Temp. Range, 6-Lead UDFN,
500/Reel
e) MIC826RYMT-TR:
MIC826, 2.625 Nom. Threshold Voltage, –40°C to +125°C
Temp. Range, 6-Lead UDFN,
5,000/Reel
f) MIC826ZYMT-T5:
MIC826, 2.315 Nom. Threshold Voltage, –40°C to +125°C
Temp. Range, 6-Lead UDFN,
500/Reel
g) MIC826YYMT-TR:
MIC826, 2.188 Nom. Threshold Voltage, –40°C to +125°C
Temp. Range, 6-Lead UDFN,
5,000/Reel
h) MIC826WYMT-T5:
MIC826, 1.665 Nom. Threshold Voltage, –40°C to +125°C
Temp. Range, 6-Lead UDFN,
500/Reel
Note 1:
2022 Microchip Technology Inc. and its subsidiaries
Tape and Reel identifier only appears in the
catalog part number description. This identifier is
used for ordering purposes and is not printed on
the device package. Check with your Microchip
Sales Office for package availability with the Tape
and Reel option.
DS20006668A-page 19
MIC826
NOTES:
DS20006668A-page 20
2022 Microchip Technology Inc. and its subsidiaries
Note the following details of the code protection feature on Microchip products:
•
Microchip products meet the specifications contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is secure when used in the intended manner, within operating specifications, and
under normal conditions.
•
Microchip values and aggressively protects its intellectual property rights. Attempts to breach the code protection features of
Microchip product is strictly prohibited and may violate the Digital Millennium Copyright Act.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of its code. Code protection does not
mean that we are guaranteeing the product is “unbreakable”. Code protection is constantly evolving. Microchip is committed to
continuously improving the code protection features of our products.
This publication and the information herein may be used only
with Microchip products, including to design, test, and integrate
Microchip products with your application. Use of this information in any other manner violates these terms. Information
regarding device applications is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your
specifications. Contact your local Microchip sales office for
additional support or, obtain additional support at https://
www.microchip.com/en-us/support/design-help/client-supportservices.
THIS INFORMATION IS PROVIDED BY MICROCHIP "AS IS".
MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED,
WRITTEN OR ORAL, STATUTORY OR OTHERWISE,
RELATED TO THE INFORMATION INCLUDING BUT NOT
LIMITED TO ANY IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A
PARTICULAR PURPOSE, OR WARRANTIES RELATED TO
ITS CONDITION, QUALITY, OR PERFORMANCE.
IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL, OR CONSEQUENTIAL LOSS, DAMAGE, COST, OR EXPENSE OF ANY
KIND WHATSOEVER RELATED TO THE INFORMATION OR
ITS USE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS
BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES
ARE FORESEEABLE. TO THE FULLEST EXTENT
ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON
ALL CLAIMS IN ANY WAY RELATED TO THE INFORMATION
OR ITS USE WILL NOT EXCEED THE AMOUNT OF FEES, IF
ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP
FOR THE INFORMATION.
Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to
defend, indemnify and hold harmless Microchip from any and
all damages, claims, suits, or expenses resulting from such
use. No licenses are conveyed, implicitly or otherwise, under
any Microchip intellectual property rights unless otherwise
stated.
Trademarks
The Microchip name and logo, the Microchip logo, Adaptec,
AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud,
CryptoMemory, CryptoRF, dsPIC, flexPWR, HELDO, IGLOO,
JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus,
maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo,
MOST, MOST logo, MPLAB, OptoLyzer, PIC, picoPower,
PICSTART, PIC32 logo, PolarFire, Prochip Designer, QTouch,
SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash,
Symmetricom, SyncServer, Tachyon, TimeSource, tinyAVR, UNI/O,
Vectron, and XMEGA are registered trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
AgileSwitch, APT, ClockWorks, The Embedded Control Solutions
Company, EtherSynch, Flashtec, Hyper Speed Control, HyperLight
Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3,
Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, QuietWire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub,
TimePictra, TimeProvider, TrueTime, WinPath, and ZL are
registered trademarks of Microchip Technology Incorporated in the
U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, Augmented Switching, BlueSky,
BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive,
CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net,
Dynamic Average Matching, DAM, ECAN, Espresso T1S,
EtherGREEN, GridTime, IdealBridge, In-Circuit Serial
Programming, ICSP, INICnet, Intelligent Paralleling, Inter-Chip
Connectivity, JitterBlocker, Knob-on-Display, maxCrypto, maxView,
memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo,
MPLIB, MPLINK, MultiTRAK, NetDetach, NVM Express, NVMe,
Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,
PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple
Blocker, RTAX, RTG4, SAM-ICE, Serial Quad I/O, simpleMAP,
SimpliPHY, SmartBuffer, SmartHLS, SMART-I.S., storClad, SQI,
SuperSwitcher, SuperSwitcher II, Switchtec, SynchroPHY, Total
Endurance, TSHARC, USBCheck, VariSense, VectorBlox, VeriPHY,
ViewSpan, WiperLock, XpressConnect, and ZENA are trademarks
of Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.
The Adaptec logo, Frequency on Demand, Silicon Storage
Technology, Symmcom, and Trusted Time are registered
trademarks of Microchip Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany
II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in
other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2022, Microchip Technology Incorporated and its subsidiaries.
All Rights Reserved.
For information regarding Microchip’s Quality Management Systems,
please visit www.microchip.com/quality.
2022 Microchip Technology Inc. and its subsidiaries
ISBN: 978-1-6683-0272-9
DS20006668A-page 21
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DS20006668A-page 22
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09/14/21
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