MICREL MIC2787

MIC2786/MIC2787
Push-Button Reset IC with Voltage
Supervisor
General Description
Features
The MIC2786/MIC2787 are low-current, ultra-small, pushbutton supervisor reset ICs with an integrated supply
voltage monitor. The device features two manual reset
inputs and two reset outputs. The reset outputs are
asserted and held when the supply voltage decreases
below the factory programmed threshold voltage. Reset
will be asserted for the reset timeout delay once the supply
voltage increases above the rising threshold voltage or
when both manual reset inputs are asserted low for longer
than the setup delay time.
The MIC2786 features integrated pull-up resistors on the
/MR0 and /MR1 inputs, while the MIC2787 requires
external pull-up resistors. The PDY input pin selects
between a 2s, 4s or 6s setup period. Factory-programmed
reset timeout delays of 140ms (min.) and 240ms (min.) are
available. An active-low, open-drain reset output (/RST)
and an active-high, push-pull reset output (RSTP) provide
flexibility when interfacing to various microcontrollers,
PMICs, or load switches.
The MIC2786/MIC2787 consume a quiescent current of
only 7.4µA and are offered in a tiny, space saving 8-pin
®
Thin MLF (2mm x 2mm x 0.55mm) package.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
•
•
•
•
•
•
•
•
•
•
•
1.6V to 5.5V operating voltage
7.4µA supply current when /MR0, /MR1 not asserted
1.66V to 4.63V preset voltage threshold options
2.5% voltage threshold accuracy over temperature
Asserting /MR0 and /MR1 for the setup delay time
asserts reset output for the reset timeout delay
Programmable delay (PDY) input selects 2s, 4s or 6s
setup delay
Factory-programmed 140ms (min.) or 240ms (min.)
reset timeout delay
Integrated /MR0, /MR1 pull-up resistors (MIC2786)
Dual reset outputs:
− Open-drain, active-low reset output (/RST)
− Push-pull, active-high reset output (RSTP)
−40°C to +85°C ambient operating temperature range
8-pin 2mm x 2mm x 0.55mm Thin MLF® package
Applications
• Smart phones
• Tablets
• Set-top boxes (STB)
_________________________________________________________________________________________________________________________
Typical Application
MLF and MicroLeadFrame are registered trademarks of Amkor Technologies, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 2011
M9999-102711-A
Micrel, Inc.
MIC2786/87
Ordering Information (1)
Part Number
MIC2786-XAYMT
MIC2786-YAYMT
(2)
MIC2786-XBYMT
(2)
MIC2786- YBYMT
(2)
MIC2786- XCYMT
(2)
Marking
Minimum tRESET (ms)
Nominal
Threshold
Voltage
Package (3,4)
6XA
140
4.625
8-Pin (2mm × 2mm) Thin MLF®
Yes
4.625
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
Yes
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
®
No
6YA
6XB
6YB
6XC
240
140
240
140
4.375
4.375
3.075
MIC2786-YCYMT
(2)
MIC2786-XDYMT
(2)
6XD
140
2.925
MIC2786-YDYMT(2)
6YD
240
2.925
MIC2786-XEYMT
(2)
MIC2786-YEYMT
(2)
MIC2786-XFYMT
(2)
MIC2786-YFYMT
(2)
MIC2786-XGYMT
(2)
MIC2786-YGYMT
(2)
6YC
6XE
6YE
6XF
6YF
6XG
6YG
240
140
240
140
240
140
240
3.075
2.625
2.625
2.313
2.313
2.188
2.188
(2)
6XH
140
1.665
MIC2786-YHYMT(2)
6YH
240
1.665
MIC2786-XHYMT
MIC2787-XAYMT
(2)
MIC2787-YAYMT
(2)
MIC2787-XBYMT
(2)
MIC2787-YBYMT
(2)
MIC2787-XCYMT
(2)
MIC2787-YCYMT
(2)
MIC2787-XDYMT
7XA
7YA
7XB
7YB
7XC
7YC
7XD
140
240
140
240
140
240
140
4.625
4.625
4.375
4.375
3.075
3.075
2.925
Integrated Pull-Up
Resistors
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
(2)
7YD
240
2.925
8-Pin (2mm × 2mm) Thin MLF
MIC2787-XEYMT(2)
7XE
140
2.625
8-Pin (2mm × 2mm) Thin MLF
MIC2787-YDYMT
MIC2787-YEYMT
(2)
MIC2787-XFYMT
(2)
MIC2787-YFYMT
(2)
MIC2787-XGYMT
(2)
MIC2787-YGYMT
(2)
MIC2787-XHYMT
(2)
MIC2787-YHYMT
(2)
7YE
7XF
7YF
7XG
7YG
7XH
7YH
240
140
240
140
240
140
240
2.625
2.313
2.313
2.188
2.188
1.665
1.665
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
8-Pin (2mm × 2mm) Thin MLF
Notes:
1.
All devices available in Tape and Reel only.
2.
Contact Factory for availability.
3.
Thin MLF
®
▲ = Pin 1 identifier.
4.
Thin MLF
®
is a Green RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
October 2011
2
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Pin Configuration
MIC2786/MIC2787
®
8-Pin (2mm × 2mm) Thin MLF
Top View
Pin Description
Pin Number
Pin Name
Pin Function
1
RSTP
Active-High Push-Pull Reset Output. This output changes from low-to-high when VIN drops below the
selected reset threshold or both manual reset pins are pulled low for the setup delay period. RSTP
remains high for the reset timeout delay after VIN exceeds the reset threshold plus hysteresis voltage
or the setup delay period has elapsed.
2
GND
Supply Ground.
/MR1
Active-Low Manual Reset Input. The MIC2786 has an internal 65kΩ pull-up resistor to VIN, while the
MIC2787 requires an external pull-up resistor to VIN if used with a push button. Pull this pin low to
assert and force a reset. Pulling both manual reset inputs low for the setup delay time causes one
reset output pulse for the reset timeout delay period. Connect to VIN if unused, do not leave floating.
4
/RST
Active-Low Open-Drain Reset Output. This output changes from high-to-low when VIN drops below
the selected reset threshold or both manual reset pins are pulled low for the setup delay period. /RST
remains low for the reset timeout delay after VIN exceeds the reset threshold or the setup delay has
elapsed and it requires an external pull-up resistor.
5
PDY
Programmable Delay Input with Tri-State Connection. When left open, setup delay is 2s, when
connected to GND, setup delay is 4s and when connected to VIN, setup delay is 6s.
6
NC
3
No Connect. Leave pin floating.
/MR0
Active Low Manual Reset Input. The MIC2786 has an internal 65kΩ pull-up resistor to VIN, while the
MIC2787 requires an external pull-up resistor to VIN if used with a push button. Pull this pin low to
assert and force a reset. Pulling both manual reset inputs low for the setup delay time causes one
reset output pulse for the reset timeout delay period. If unused, connect to VIN; do not leave floating.
8
VIN
Supply Voltage Pin. It is the input to the Supply Voltage monitor. When the supply voltage falls below
the reset threshold voltage, reset outputs (/RST and RSTP) 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 delay. A minimum 0.1μF decoupling ceramic capacitor
must be connected between VIN and GND close to the pins.
EPAD
EPAD
7
October 2011
Exposed Pad. Connect to GND.
3
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Absolute Maximum Ratings(1)
Operating Ratings(2)
Supply Voltage (VIN) ..................................... −0.3V to +6.0V
Reset Input Voltage (/MR0, /MR1).......... −0.3V to VIN+0.3V
Open Drain Reset Output (/RST) ................. −0.3V to +6.0V
Push-Pull Reset Output (RSTP).............. −0.3V to VIN+0.3V
Tri-State Programmable Delay (PDY)..... −0.3V to VIN+0.3V
Lead Temperature (soldering, 10s)............................ 260°C
Junction Temperature (TJ) ........................−40°C to +150°C
Storage Temperature (Ts)......................... −55°C to +150°C
ESD Rating (Human Body Model) (3) .............................. 2kV
ESD Rating (Machine Model) (3) ...................................300V
Supply Voltage (VIN)..................................... +1.6V to +5.5V
Reset Input Voltage (/MR0, /MR1)......................... 0V to VIN
Open Drain Reset Output (/RST)...................... 0V to +5.5V
Push-Pull Reset Output (RSTP) ............................ 0V to VIN
Tri-State Programmable Delay (PDY).................... 0V to VIN
Ambient Temperature (TA) .......................... −40°C to +85°C
Junction Thermal Resistance
2mm × 2mm Thin MLF® (θJA).............................90°C/W
Electrical Characteristics(4)
VIN = 3.0V, TA = 25°C, Bold values indicate −40°C ≤ TA ≤ +85°C; unless noted otherwise.
Parameter
Conditions
Min.
Typ.
Max.
Units
5.5
V
Power Supply Input
Supply Voltage (VIN)
Supply Current (IVIN)
1.6
VIN = 5V; /MR0, /MR1, /RST, RSTP, and PDY
open
7.9
VIN = 3V; /MR0, /MR1, /RST, RSTP, and PDY
open
7.4
12.5
µA
Reset Threshold Voltage
Reset Threshold Voltage (VTH)
October 2011
A (falling) TA = 25°C
4.533
4.625
4.718
A (falling) −40°C ≤ TA ≤ +85°C
4.509
4.625
4.741
B (falling) TA = 25°C
4.288
4.375
4.463
B (falling) –40°C ≤ TA ≤ +85°C
4.266
4.375
4.484
C (falling) TA = 25°C
3.014
3.075
3.137
C (falling) –40°C ≤ TA ≤ +85°C
2.998
3.075
3.152
D (falling) TA = 25°C
2.867
2.925
2.984
D (falling) –40°C ≤ TA ≤ +85°C
2.852
2.925
2.998
E (falling) TA = 25°C
2.573
2.625
2.678
E (falling) –40°C ≤ TA ≤ +85°C
2.559
2.625
2.691
F (falling) TA = 25°C
2.267
2.313
2.359
F (falling) –40°C ≤ TA ≤ +85°C
2.255
2.313
2.371
G (falling) TA = 25°C
2.144
2.188
2.232
G (falling) –40°C ≤ TA ≤ +85°C
2.133
2.188
2.243
H (falling) TA = 25°C
1.632
1.665
1.698
H (falling) –40°C ≤ TA ≤ +85°C
1.623
1.665
1.707
4
V
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Electrical Characteristics (4) (Continued)
VIN = 3.0V, TA = 25°C, Bold values indicate −40°C ≤ TA ≤ +85°C; unless noted otherwise.
Parameter
Conditions
Min.
Typ.
Max.
Units
Hysteresis Voltage (VHYST)
A, B
0.5
%
Hysteresis Voltage (VHYST)
C, D, E, F, G, H
1.0
%
Reset Time
Setup Delay (tSETUP)
Reset Timeout Delay (tRESET)
PDY = Open
1.6
2.0
2.4
s
PDY = 0V
3.2
4.0
4.8
s
PDY = VIN
4.8
6.0
7.2
s
Option X
140
220
280
ms
Option Y
240
350
480
ms
Reset Outputs (/RST, RSTP)
Reset Output Voltage Low
(/RST Output and RSTP Output) (VOL)
Reset Output Voltage High
(RSTP Output) (VOH)
/RST Output Leakage (ILO)
VIN = 4.5V, ISINK = 3.2mA
0.3
VIN = 3.3V, ISINK = 2.5mA
0.3
VIN = 1.6V, ISINK = 1.0mA
0.3
VIN = 4.5V, ISOURCE = 0.8mA
0.8 × VIN
VIN = 2.7V, ISOURCE = 0.5mA
0.8 × VIN
VIN = 1.6V, ISOURCE = 250μA
0.8 × VIN
V
V
V/RST = 5.5V
0.3
μA
Manual Reset Inputs (/MR0, /MR1)
Input High Voltage (VIH)
V
1.2
Input Low Voltage (VIL)
0.3
Internal Pull-Up Resistor (RPU)
MIC2786 only
65
Leakage Current /MR0, /MR1 Pin (IMR)
/MR0, /MR1 inputs; MIC2787 only
−1.0
V
kΩ
1.0
μA
Programmable Setup Delay Input (PDY)
Input Bias Current PDY Pin (IPDY)
PDY = VIN, /MR0 = /MR1 = 0V
+60
μA
PDY = VIN, /MR0 = VIN or /MR1= VIN
100
nA
PDY = 0V, /MR0 = /MR1 = 0V
-60
μA
PDY = 0V, /MR0 = VIN or /MR1 = VIN
100
nA
Notes:
1.
Exceeding the absolute maximum rating may damage the device.
2.
The device is not guaranteed to function outside its operating rating.
3.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
4.
Specification for packaged product only.
October 2011
5
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Typical Characteristics
3.0
DUAL RESET DELAY (s)
VIN = 3.0V
PDY = OPEN
8.2
7.4
6.6
5.8
5.0
250
VIN = 3.0V
PDY = OPEN
2.5
2.0
1.5
1.0
-15
10
35
60
-15
TEMPERATURE (°C)
DUAL RESET DELAY (s)
35
60
6.6
5.8
5.0
10
35
60
4.0
3.5
-15
10
35
60
DUAL RESET DELAY (s)
6.6
5.8
5.0
-15
10
35
TEMPERATURE (°C)
October 2011
240
230
220
210
-40
-15
60
85
10
35
60
85
TEMPERATURE (°C)
Setup Delay
vs. Temperature (PDY = VIN)
Reset Timeout Delay (Option X )
vs. Temperature (PDY = VIN)
250
PDY = VIN
6.5
6.0
5.5
5.0
-40
85
VIN = 3.0V
PDY = 0V
85
V IN = 3.0V
7.4
60
200
-40
7.0
PDY = V IN
35
250
TEMPERATURE (°C)
VIN = 3.0V
10
Reset Timeout Delay (Option X )
vs. Temperature (PDY = 0V)
4.5
85
VIN Supply Current
vs. Temperature (PDY = VIN)
8.2
-15
TEMPERATURE (°C)
VIN = 3.0V
PDY = 0V
TEMPERATURE (°C)
9.0
210
-40
3.0
-15
220
85
RESET TIMEOUT DELAY(ms)
SUPPLY CURRENT (µA)
10
5.0
7.4
-40
230
Setup Delay
vs. Temperature (PDY = 0V)
VIN = 3.0V
PDY = 0V
8.2
240
TEMPERATURE (°C)
VIN Supply Current
vs. Temperature (PDY = 0V)
9.0
VIN = 3.0V
PDY = OPEN
200
-40
85
RESET TIMEOUT DELAY (ms)
-40
SUPPLY CURRENT (µA)
Reset Timeout Delay (Option X )
vs. Temperature (PDY = OPEN)
RESET TIMEOUT DELAY (ms)
9.0
SUPPLY CURRENT (µA)
Setup Delay
vs. Temperature (PDY = OPEN)
VIN Supply Current
vs. Temperature (PDY = OPEN)
VIN = 3.0V
PDY = VIN
240
230
220
210
200
-40
-15
10
35
TEMPERATURE (°C)
6
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Typical Characteristics (Continued)
Setup Delay
vs. Input Voltage
VIN Supply Current
vs. Input Voltage
9.0
8.2
7.4
6.6
5.8
250
RESET TIMEOUT DELAY (ms)
10.0
/MR0 = NOT ASSERTED
/MR1 = NOT ASSERTED
DUAL RESET DELAY (s)
SUPPLY CURRENT (µA)
9.8
Reset Timeout Delay (Option X )
vs. Input Voltage
8.0
PDY = VIN
6.0
PDY = 0V
4.0
PDY = OPEN
2.0
0.0
0
1
2
3
4
5
6
INPUT VOLTAGE (V)
240
230
220
210
200
0
1
2
3
4
INPUT VOLTAGE (V)
5
6
0
1
2
3
4
5
6
INPUT VOLTAGE (V)
Normalized Reset Threshold
vs. Temperature
1.060
RESET THRESHOLD
VOLTAGE (V)
1.040
1.020
1.000
0.980
0.960
0.940
0.920
-40
-15
10
35
60
85
TEMPERATURE (°C)
October 2011
7
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Timing Diagram
October 2011
8
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Functional Diagram
October 2011
9
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Application Information
Dual Manual Reset Inputs (/MR0, /MR1)
The /MR0, /MR1 input pins have integrated pull-up
resistors for the MIC2786 but require external pull-up
resistors for the MIC2787. A recommended value is
100kΩ to keep the current consumption low when the
push-button switches are pressed. The behavior of the
reset outputs is independent of the order in which the
/MR0, /MR1 inputs are driven low. If both inputs are low
for a setup delay time, only one reset pulse, of width
tRESET, is generated. Keeping both inputs low for a
longer time does not generate additional reset output
pulses.
Design and Product Advantages
The MIC2786/MIC2787 are voltage supervisor reset ICs
with dual manual reset inputs and long manual reset
setup delay times. The dual manual reset inputs and
long manual reset setup delay times help protect against
accidental system resets in applications such as smart
phones, personal navigation devices, MP3 players, and
set-top boxes (STB).
The MIC2786/MIC2787 assert and hold a reset when the
supply voltage decreases below the factory-programmed
threshold voltage. Reset is asserted for a fixed reset
timeout delay once the supply voltage increases above
the rising threshold voltage or when both manual reset
inputs are asserted low for longer than the setup delay
time.
The MIC2786/MIC2787 feature manual reset setup
delay times of 2s, 4s or 6s, which are selected by the tristate programmable delay input pin (PDY). They are
available with factory-programmed reset timeout delays
of 140ms (min.) or 240ms (min.). Both the MIC2786 and
MIC2787 feature an active-low, open-drain reset output
(/RST) and an active-high, push-pull reset output
(RSTP). This allows flexibility for interfacing with different
microprocessors, PMICs, and load-switches. The
MIC2786 features 65kΩ pull-up resistors on the /MR0
and /MR1 inputs to provide ease when connecting to
push-button inputs. The MIC2787 does not provide pullup resistors on the manual reset inputs and is intended
for directly interfacing to logic outputs.
Reset Outputs (/RST and RSTP)
The /RST output is a simple open-drain N-channel
MOSFET structure that requires a pull-up resistor to an
external voltage. For most applications, the pull-up
voltage will be the same as the power supply that
supplies VIN to the MIC2786/MIC2787. As shown in
Figure 1, it is possible to tie this resistor to some other
voltage, other than VIN, thus enabling level-shifting of the
/RST output. The pull-up voltage must be limited to 5.5V
or less to avoid damage to the MIC2786/MIC2787. The
pull-up resistor must be small enough to supply current
to the inputs and leakage paths that are driven by the
/RST output (a recommended value is 100kΩ). Leave
floating if the /RST pin is unused.
Since the /RST output is open-drain, several reset
sources can be wire-ORed, in parallel, to allow resets
from multiple sources. By tying the pull-up resistor to
some other voltage, the MIC2786/MIC2787 can monitor
one voltage while level-shifting the /RST output to some
other voltage.
The RSTP pin is a push-pull output that is driven to VIN.
It cannot be level-shifted to another voltage. It is an
inverted signal of /RST.
Supply Bypass Capacitor
A 0.1µF input bypass capacitor must be placed from VIN
(Pin 8) to GND (Pin 2).
Programmable Delay Input (PDY)
The MIC2786/MIC2787 has a programmable setup
delay time, tSETUP that is set via a tri-state logic
configuration. The PDY pin is intended to be connected
to the VIN supply voltage, ground or left floating.
PDY Configuration
tSETUP
OPEN
2s
GND
4s
VIN
6s
Figure 1. MIC2786/MIC2787 Used in Multiple Supply
System
October 2011
10
M9999-102711-A
Micrel, Inc.
MIC2786/MIC2787
Asserting /RST and RSTP Outputs
a) When Functioning as a Manual Reset
The reset outputs /RST and RSTP are asserted when
the setup delay time, tSETUP, is exceeded while the /MR0,
/MR1 pins are driven low. Both the reset outputs remain
asserted for a factory-programmed reset timeout delay
time tRESET. Two options are available with 140ms or
240ms minimum tRESET duration. The /RST pin is driven
active low while the RSTP pin is driven active high for
the tRESET duration. The reset outputs are undefined for
VIN < 1.6V.
Figure 3. Voltage Monitor Function
VIN Transients
The MIC2786/MIC2787 is relatively immune to small
negative-going VIN glitches below the reset threshold. As
shown in Figure 4, the overdrive voltage is the difference
between the threshold voltage and the minimum point of
the VIN glitch. Typically, an overdrive of 100mV, with
duration of 20μs or less will not cause a reset.
Figure 2. Manual Reset Function
b) When Functioning as a Voltage Monitor
The /RST pin is asserted whenever VIN falls below the
reset threshold voltage, VTH (VIN < VTH). The VIN pin
circuitry includes hysteresis to prevent /RST or RSTP pin
chattering due to noise. The /RST pin remains asserted
for the duration of the reset timeout delay (tRESET) after
VIN has risen above the reset threshold voltage plus the
hysteresis. The reset function ensures a microprocessor
is properly reset and powers up in a known condition
after a power failure. /RST remains valid with VIN as low
as 1.6V. The RSTP output is a compliment of the /RST
output.
October 2011
Figure 4. VIN Transient
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MIC2786/MIC2787
Typical Applications
Figure 5. MIC2786/MIC2787 Used for Interrupting System Power
Figure 6. MIC2786/MIC2787 Used for Microcontroller Reset
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Micrel, Inc.
MIC2786/MIC2787
Evaluation Board Schematic
Bill of Materials
Item
Part Number
Manufacturer
(1)
Description
Qty.
C1
GRM188R71C104KA01D
Murata
0.1µF, 16V capacitor, X7R, 0603
1
R1, R2, R4
CRCW0603100KJNEA
Vishay(2)
100k, 5% resistor, 0603
3
Push-Button Reset IC with Supply Voltage Supervisor
1
U1
MIC2786-XDYMT
MIC2787-XDYMT
Micrel, Inc.(3)
Notes:
1. Murata Tel: www.murata.com.
2. Vishay Tel: www.vishay.com.
3. Micrel, Inc.: www.micrel.com.
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MIC2786/MIC2787
PCB Layout Recommendations
Top Layer
Top Silkscreen
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Micrel, Inc.
MIC2786/MIC2787
PCB Layout Recommendations (Continued)
Copper Layer
Bottom Silkscreen
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Micrel, Inc.
MIC2786/MIC2787
Package Information
8-Pin 2mm × 2mm Thin MLF®
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Micrel, Inc.
MIC2786/MIC2787
Recommended Landing Pattern
Red circle indicates Thermal Via. Size should be .300mm − .350mm in diameter and it should be connected to GND
plane for maximum thermal performance.
8-Pin 2mm × 2mm Thin MLF®
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Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This
information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,
specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual
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© 2011 Micrel, Incorporated.
October 2011
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