MIC803-46D2VC3 TR Micrel Inc, MIC803-46D2VC3 TR Datasheet

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MIC803-46D2VC3 TR

Manufacturer Part Number
MIC803-46D2VC3 TR
Description
IC MPU SUPERVISOR SC70-3
Manufacturer
Micrel Inc
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of MIC803-46D2VC3 TR

Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active Low
Reset Timeout
20 ms Minimum
Voltage - Threshold
4.63V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SC-70, SOT-323
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-3837-2
General Description
The MIC803 is a single-voltage 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 power supply increases above
the Reset Threshold voltage.
The MIC803 consumes only 4.5μA of supply current and
offers three reset delay periods of 20ms, 140ms and
1120ms (min). It features factory programmed reset
threshold levels from 2.63V to 4.63V to accommodate
3.0V, 3.3V, and 5.0V power supplies. It is available in the
compact 3-pin SC-70 and SOT-23 packages.
____________________________________________________________________________________________________________
Typical Application
December 2010
V
CC
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 •
MIC803
GND
V
CC
RESET
100k
RESET
GND
V
µP
CC
Features
• 4.5μA supply current (typical) at 3.6V
• Open-Drain /RESET output
• /RESET remains valid with V
• 20ms, 140ms, or 1120ms (min) 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 x 2.1mm)
• 3-pin SOT-23 package (2.3mm x 2.9mm)
• -40˚C to +125˚C Junction Temperature Range
Applications
• Critical microcomputer power monitoring
• Portable equipment
• Solid state drives
• Printers/computers
• Embedded controllers
3-Pin Microprocessor Supervisor Circuit
with Open-Drain Reset Output
MIC803
CC
as low as 1V
http://www.micrel.com
M9999-122310-A

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MIC803-46D2VC3 TR Summary of contents

Page 1

... Threshold voltage, and retain this reset for the Reset Timeout Period once the power supply increases above the Reset Threshold voltage. The MIC803 consumes only 4.5μA of supply current and offers three reset delay periods of 20ms, 140ms and 1120ms (min). It features factory programmed reset threshold levels from 2 ...

Page 2

... MIC803-46D3VC3 AT MIC803-44D3VC3 AQ MIC803-41D3VC3 AM MIC803-40D3VC3 A5 MIC803-31D3VC3 A4 MIC803-30D3VC3 AX MIC803-29D3VC3 AE MIC803-26D3VC3 AB MIC803-46D4VC3 AU MIC803-44D4VC3 AR MIC803-41D4VC3 AN MIC803-40D4VC3 A6 MIC803-31D4VC3 AJ MIC803-30D4VC3 AZ MIC803-29D4VC3 A3 MIC803-26D4VC3 AC MIC803-46D2VM3 AS MIC803-44D2VM3 AP MIC803-41D2VM3 AK MIC803-40D2VM3 A2 MIC803-31D2VM3 AG MIC803-30D2VM3 AV MIC803-29D2VM3 AD MIC803-26D2VM3 AA MIC803-46D3VM3 AT MIC803-44D3VM3 AQ MIC803-41D3VM3 AM MIC803-40D3VM3 A5 MIC803-31D3VM3 A4 MIC803-30D3VM3 AX MIC803-29D3VM3 AE MIC803-26D3VM3 AB December 2010 (2) Nominal V Min RESET (V) (ms) 4.63 20 4. ...

Page 3

... Micrel, Inc. Part Number Marking MIC803-46D4VM3 AU MIC803-44D4VM3 AR MIC803-41D4VM3 AN MIC803-40D4VM3 A6 MIC803-31D4VM3 AJ MIC803-30D4VM3 AZ MIC803-29D4VM3 A3 MIC803-26D4VM3 AC Notes All devices available in Tape and Reel only –40° to +85°C Temp. Range Part Numbering Convention: Pin Configuration Pin Description Pin Number Pin Name 1 GND 2 /RESET December 2010 ...

Page 4

... -40˚C to +85˚C J MIC803- -40˚C to +125˚ MIC803 (2) )........................................ 1. ........................ –40°C to +125° ..............................................260°C/W JA )............................................203°C 3.0V for MIC803-26 25°C, Bold CC J Min Typ Max 1.0 5.5 1.2 5.5 5 4.50 4.63 4.75 4.44 4 ...

Page 5

... T = +85˚C to +125˚C J ≥ 4.0V 3.2mA CC SINK > 2.5V 1.2mA CC SINK ≥ 1.0V 50μA CC SINK V > /RESET deasserted MIC803 = 3.0V for MIC803-26 25°C, Bold CC J Min Typ Max Units 140 230 360 112 420 1120 1800 2400 900 3200 0.4 0.3 ...

Page 6

... Supply Voltage 2.93V 130 SUPPLY VOLTAGE (V) 6 Reset Timeout Period (D3) vs. Temperature 300 V = 5.5V CC 280 260 240 220 200 70 100 130 -50 -20 TEMPERATURE (°C) Maximum Transient Duration 2.93V 200 OVERDRIVE VOLTAGE, V MIC803 100 130 vs Overdrive 400 600 800 1000 - V (mV M9999-122310-A ...

Page 7

... Micrel, Inc. Timing Diagram Functional Diagram V December 2010 MIC803 (3) CC GENERATOR + RESET (2) RESET GND (1) MIC803 M9999-122310-A ...

Page 8

... Figure 1. MIC803 used in a Multiple Supply System /RESET Valid at Low Voltage As V drops to 0V, the MIC803 will no longer be able to CC pull the /RESET output low, and the pull-up resistor will pull the output high. The value of the pull-up resistor and the voltage it is connected to will affect the point at which this happens ...

Page 9

... Micrel, Inc. Package Information December 2010 3-Pin SC-70 (C3) 9 MIC803 M9999-122310-A ...

Page 10

... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully December 2010 3-Pin SOT-23 (M3) indemnify Micrel for any damages resulting from such use or sale. © 2010 Micrel, Incorporated. 10 MIC803 M9999-122310-A ...

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