Micrel MIC803-26D2VC3, MIC803-26D2VM3, MIC803-26D3VC3, MIC803-26D3VM3, MIC803-26D4VC3 Schematic [ru]
...
August 3, 2015
V
CC
100k
V
CC
RESET
V
CC
µPMIC803
GND
GND
RESET
General Description
MIC803
3-Pin Microprocessor Supervisor Circuit
with Open-Drain Reset Output
Features
The MIC803 is a single-vol tage supervisor with open-drain
reset output that provides accurate power supply
monitoring and reset generation in microprocessor-based
systems. The function of the device is to assert a reset
signal if the power supply voltage drops below the reset
threshold voltage, and retain this reset for the reset
timeout period once the po wer suppl y increases abo ve the
reset threshold voltage.
The MIC803 consumes only 4.5µA of supply current and
offers three reset delay periods of 20ms, 140ms, and
1120ms (minimum). It features factory-programmed reset
threshold levels from 2.63V to 4.63V to accommodate
3.0V, 3.3V, and 5.0 V power supplies. It is available in the
compact 3-pin SC-70 and SOT-23 packages.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com
.
Typical Application
• 4.5μA supply current (typical) at 3.6V
• Open-drain /RESET output
• /RESET remains valid with V
as low as 1V
CC
• 20ms, 140ms, or 1120ms (minimum) reset timeout
options
• 2.63V to 4.63V preset voltage threshold options
• 2.5% voltage threshold accuracy over temperature
• 3-pin SC70-3 package (2.0mm × 2.1mm)
• 3-pin SOT-23 package (2.3mm × 2.9mm)
• -40˚C to +125˚C junction temperature range
Applications
• Critical microcomputer power monitoring
• Portable equipment
• Solid state drives
• Printers/computers
• Embedded controllers
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
Revision 1.2
Micrel, Inc.
MIC803
August 3, 2015
Ordering Information
(1)
Part Number Marking
(2)
Nominal
V
(V)
TH
Minimum
(3)
t
RESET
(ms)
Junction Temperature Range Package
MIC803-46D2VC3 AS 4.63 20 –40° to +125°C SC70-3
MIC803-44D2VC3 AP 4.38 20 –40° to +125°C SC70-3
MIC803-41D2VC3 AK 4.10 20 –40° to +125°C SC70-3
MIC803-40D2VC3 A2 4.00 20 –40° to +125°C SC70-3
MIC803-31D2VC3 AG 3.08 20 –40° to +125°C SC70-3
MIC803-30D2VC3 AV 3.00 20 –40° to +125°C SC70-3
MIC803-29D2VC3 AD 2.93 20 –40° to +125°C SC70-3
MIC803-26D2VC3 AA 2.63 20 –40° to +125°C SC70-3
MIC803-46D3VC3 AT 4.63 140 –40° to +125°C SC70-3
MIC803-44D3VC3 AQ 4.38 140 –40° to +125°C SC70-3
MIC803-41D3VC3 AM 4.10 140 –40° to +125°C SC70-3
MIC803-40D3VC3 A5 4.00 140 –40° to +125°C SC70-3
MIC803-31D3VC3 A4 3.08 140 –40° to +125°C SC70-3
MIC803-30D3VC3 AX 3.00 140 –40° to +125°C SC70-3
MIC803-29D3VC3 AE 2.93 140 –40° to +125°C SC70-3
MIC803-26D3VC3 AB 2.63 140 –40° to +125°C SC70-3
MIC803-46D4VC3 AU 4.63 1120 –40° to +125°C SC70-3
MIC803-44D4VC3 AR 4.38 1120 –40° to +125°C SC70-3
MIC803-41D4VC3 AN 4.10 1120 –40° to +125°C SC70-3
MIC803-40D4VC3 A6 4.00 1120 –40° to +125°C SC70-3
MIC803-31D4VC3 AJ 3.08 1120 –40° to +125°C SC70-3
MIC803-30D4VC3 AZ 3.00 1120 –40° to +125°C SC70-3
MIC803-29D4VC3 A3 2.93 1120 –40° to +125°C SC70-3
MIC803-26D4VC3 AC 2.63 1120 –40° to +125°C SC70-3
MIC803-46D2VM3 AS 4.63 20 –40° to +125°C SOT23-3
MIC803-44D2VM3 AP 4.38 20 –40° to +125°C SOT23-3
MIC803-41D2VM3 AK 4.10 20 –40° to +125°C SOT23-3
MIC803-40D2VM3 A2 4.00 20 –40° to +125°C SOT23-3
MIC803-31D2VM3 AG 3.08 20 –40° to +125°C SOT23-3
MIC803-30D2VM3 AV 3.00 20 –40° to +125°C SOT23-3
MIC803-29D2VM3 AD 2.93 20 –40° to +125°C SOT23-3
MIC803-26D2VM3 AA 2.63 20 –40° to +125°C SOT23-3
MIC803-46D3VM3 AT 4.63 140 –40° to +125°C SOT23-3
Note:
1. All devices available in tape and reel only. (Order entry PN, add TR. Example: MIC803-26D4VM3 TR)
Standard/full reel quantity is 3,000 pieces.
Reel diameter is 7 inches. Hub diameter is 2 inches. Width is 8mm.
2. Underbar symbol (_) may not be to scale.
3. –40° to +85°C temperature range.
2
Revision 1.2
Micrel, Inc.
MIC803
August 3, 2015
Ordering Information
(1)
(Continued)
Nominal
Part Number Marking
MIC803-44D3VM3 AQ 4.38 140 –40° to +125°C SOT23-3
MIC803-41D3VM3 AM 4.10 140 –40° to +125°C SOT23-3
MIC803-40D3VM3 A5 4.00 140 –40° to +125°C SOT23-3
MIC803-31D3VM3 A4 3.08 140 –40° to +125°C SOT23-3
MIC803-30D3VM3 AX 3.00 140 –40° to +125°C SOT23-3
MIC803-29D3VM3 AE 2.93 140 –40° to +125°C SOT23-3
MIC803-26D3VM3 AB 2.63 140 –40° to +125°C SOT23-3
MIC803-46D4VM3 AU 4.63 1120 –40° to +125°C SOT23-3
MIC803-44D4VM3 AR 4.38 1120 –40° to +125°C SOT23-3
MIC803-41D4VM3 AN 4.10 1120 –40° to +125°C SOT23-3
MIC803-40D4VM3 A6 4.00 1120 –40° to +125°C SOT23-3
MIC803-31D4VM3 AJ 3.08 1120 –40° to +125°C SOT23-3
MIC803-30D4VM3 AZ 3.00 1120 –40° to +125°C SOT23-3
MIC803-29D4VM3 A3 2.93 1120 –40° to +125°C SOT23-3
MIC803-26D4VM3 AC 2.63 1120 –40° to +125°C SOT23-3
(2)
(V)
V
TH
Minimum
(3)
t
RESET
(ms)
Junction Temperature Range Package
Part Numbering Convention
3
Revision 1.2
Micrel, Inc.
MIC803
August 3, 2015
(Top View)
(Top View)
Pin Configuration
3-Pin SC70
Pin Description
Pin Number Pin Name Pin Function
1 GND Ground Pin.
2 /RESET
3 VCC Power Supply Input and Monitored Voltage.
/RESET goes low if VCC falls below the reset threshold (VTH), and remains asserted for one timeout
period after V
exceeds VTH.
CC
3-Pin SOT-23
4
Revision 1.2
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