APX803-23SAG-7 Diodes Inc, APX803-23SAG-7 Datasheet

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APX803-23SAG-7

Manufacturer Part Number
APX803-23SAG-7
Description
IC MPU RESET CIRC 2.25V SOT23-3
Manufacturer
Diodes Inc
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of APX803-23SAG-7

Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
2.25V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
Overvoltage Threshold
2.25 V
Power-up Reset Delay (typ)
200 ms
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.1 V
Supply Current (typ)
20 uA
Maximum Power Dissipation
400 mW
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Output Type
Open Collector / Drain
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
APX803-23SAG-7DITR
Features
Applications
Typical Application Circuit
APX803
Document number: DS32132 Rev. 1 – 2
Precision Monitoring of +2.5V, +3V, +3.3V, and +5V
Power-Supply Voltages
Fully Specified Over Temperature
Available in three Output Configurations
Open-drain
200ms Typ Power-On Reset Pulse Width
30µA Supply Current (Typ.)
Guaranteed Reset Valid to V
No External Components
SOT23 and SOT23R: Available in “Green” Molding
Compound (No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable/Battery Powered Equipment
RESET
100nF
C
IN
Active Low
Vcc
CC
= +1V
APX803
GND
Vcc
RESET
www.diodes.com
1 of 10
3-PIN MICROPROCESSOR RESET CIRCUIT
General Description
The APX803 is used for microprocessor (µP) supervisory circuits
to monitor the power supplies in µP and digital systems. They
provide excellent circuit reliability and low cost by eliminating
external components and adjustments when used with +5V,
+3.3V, +3.0V powered circuits.
These circuits perform a single function: they assert a reset
signal on power up and whenever the V
declines below a preset threshold, keeping it asserted for at least
140ms after V
thresholds suitable for operation with a variety of supply voltages
are available. The APX803 have an open collector active low
fast transients on V
the correct logic state for V
makes the APX803 ideal for use in portable equipment. The
APX803 is available in two pin out variants of the 3-pin SOT23
and SOT23R packages.
RESET
INPUT
RESET
output. The reset comparator is designed to ignore
Microprocessor
CC
has risen above the reset threshold. Reset
Vcc
GND
CC
, and the outputs are guaranteed to be in
CC
down to 1V. Low supply current
©
APX803
Diodes Incorporated
CC
MARCH 2010
supply voltage

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APX803-23SAG-7 Summary of contents

Page 1

... The APX803 have an open collector active low RESET output. The reset comparator is designed to ignore fast transients on V the correct logic state for V makes the APX803 ideal for use in portable equipment. The APX803 is available in two pin out variants of the 3-pin SOT23 and SOT23R packages. Vcc APX803 Microprocessor RESET ...

Page 2

... RESET Pin Descriptions Pin Name Description GND Ground Reset Output Pin RESET Active Low Open Drain V Operating Voltage Input CC APX803 Rev. 1 Document number: DS32132 Rev. 1 – 2 3-PIN MICROPROCESSOR RESET CIRCUIT APX Voltage Package Green SOT23 G : Green SR : SOT23R ...

Page 3

... Recommended Operating Conditions Symbol V Supply Voltage CC V Input Voltage IN V RESET output voltage RESET T Operating Ambient Temperature Range A dV /dt V Rate of rise ( APX803 Rev. 1 Document number: DS32132 Rev. 1 – 2 3-PIN MICROPROCESSOR RESET CIRCUIT Parameter = +70°C), A Parameter = 0 www.diodes.com APX803 Rating Unit 2 kV 200 V -0 ...

Page 4

... Junction-to-Case Notes: 3. Test condition for SOT23 and SOT23R: Devices mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout. 4. Final datasheet limits to be determined by characterization and correlation. APX803 Rev. 1 Document number: DS32132 Rev. 1 – 2 3-PIN MICROPROCESSOR RESET CIRCUIT (T = 25ºC) A =+25 ° ...

Page 5

... Functional Description Microprocessors (µPs) and microcontrollers (µC) have a reset input to ensure that it starts known state. The APX803 drive the µP’s reset input to prevent code-execution errors during power-up, power-down, or brownout conditions. They assert a reset signal whenever the V supply voltage declines below a ...

Page 6

... APX803-26 2.5 2.0 -50 - Temperature (°C) Figure 1 Supply Current vs. Temperature 30 Vcc=3. -50 - Temperature (°C) Figure 3 APX803 Rev. 1 Document number: DS32132 Rev. 1 – 2 3-PIN MICROPROCESSOR RESET CIRCUIT RESET Timeout Period vs. Temperature 250 240 230 220 210 200 190 180 170 160 150 - 100 ...

Page 7

... Figure 5 Nch Driver Output Current vs APX803- Vcc= 2.0V 10 Vcc= 1.5V 0 0.0 0.5 1.0 1.5 V (V) DS Figure 7 APX803 Rev. 1 Document number: DS32132 Rev. 1 – 2 3-PIN MICROPROCESSOR RESET CIRCUIT (Continued) 60 APX803- -40º 85º 2.0 2.5 3.0 0.0 Nch Driver Output Current vs 100 APX803-44 ...

Page 8

... APX803-44SA APX803-40SA APX803-31SA APX803-29SA APX803-26SA APX803-23SA APX803-46SR APX803-44SR APX803-40SR APX803-31SR APX803-29SR APX803-26SR APX803-23SR APX803 Rev. 1 Document number: DS32132 Rev. 1 – 2 3-PIN MICROPROCESSOR RESET CIRCUIT T Delay T Delay XX : Identification code Y : Year 0 Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green ...

Page 9

... Package Type: SOT23 and SOT23R Notes: 5. Package outline dimensions as shown on Diodes Inc. package outline dimensions document AP02002, which can be found on our website at http://www.diodes.com/datasheets/ap02002.pdf APX803 Document number: DS32132 Rev. 1 – 2 3-PIN MICROPROCESSOR RESET CIRCUIT (All Dimensions in mm www.diodes.com APX803 MARCH 2010 © Diodes Incorporated ...

Page 10

... Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2010, Diodes Incorporated www.diodes.com APX803 Document number: DS32132 Rev. 1 – 2 3-PIN MICROPROCESSOR RESET CIRCUIT IMPORTANT NOTICE LIFE SUPPORT www.diodes.com APX803 MARCH 2010 © Diodes Incorporated ...

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