Diodes AZ809, AZ810 User Manual

Data Sheet

3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810

General Description

The AZ809/810 microprocessor supervisory circuits
can be used to monitor the power supplies in micropro­cessor and digital systems. They provide a reset to the
microprocessor in power-up, power-down and brown­out conditions. The function of the AZ809/810 is to
monitor the V

nal whenever this voltage declines below the factory­programmed reset threshold. The reset signal remains
asserted for 240ms after V

The AZ809 has an active-low RESET output, while
the AZ810 has an active-high RESET output. Seven
standard reset voltage options are available, suitable
for monitoring 3.0V, 3.3V and 5.0V supply voltages.
With a typical supply current of only 8

3.3V, the AZ809/810 are ideal for use in portable
equipment.

These ICs are available in SOT-23 package.

supply voltage, and assert a reset sig-

CC

rises above the threshold.

CC

μA when V

CC

is

Features

· Precise Monitoring of 3.0V, 3.3V and 5.0V Sup­ply Voltages

· Improved Maxim MAX809/MAX810 Replace­ment

· 140ms Min. Reset Pulse Width

Active-low Reset Output (AZ809)

Active-high Reset Output (AZ810)

· No External Components

· Specified Over Full Temperature Range: -40 to

o

C

105

Applications

· Embedded Controllers

· Battery Operated Systems

· Intelligent Instruments

· Wireless Communication Systems

· PDAs and Handheld Equipment

SOT-23

Figure 1. Package Type of AZ809/810

Dec. 2012 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

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Data Sheet

3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810

Pin Configuration

N Package

(SOT-23)

1

Figure 2. Pin Configuration of AZ809/810 (Top View)

Pin Description

Pin Number

AZ809 AZ810

1 1 GND Ground pin

2RESET

Pin Name Function

RESET is asserted LOW if V

the 240ms typical reset timeout period (140ms minimum) after V

threshold

2

V

CC

3

RESET/RESET

GND

falls below the reset threshold and remains LOW for

CC

exceeds the

CC

2 RESET RESET is asserted HIGH if V

33 V

CC

Power supply input voltage (3.0V, 3.3V, 5.0V)

falls below the reset threshold

CC

Dec. 2012 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

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Data Sheet

Reference

Voltage

Reset

Logic

+

Timer

Oscillator

1A LOW DROPOUT LINEAR REGULATOR AP2218

3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810

Functional Block Diagram

CC

3

1

Figure 3. Functional Block Diagram of AZ809/810

V

GND

Ordering Information

AZ8XX -

2

RESET/RESET

Circuit Type

09: AZ809
10: AZ810

Package

N: SOT-23

E1: Lead Free
G1: Green

TR: Tape and Reel

Detect Voltage:
L: 4.63V S: 2.93V
T: 3.08V

R: 2.63V

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Data Sheet

3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810

Ordering Information (Continued)

Package

Te mp er a tu re

Range

Lead Free Green Lead Free Green

AZ809NLTR-E1 AZ809NLTR-G1 EC1 GC1 Tape & Reel

o

-40 to 105

AZ809NTTR-E1 AZ809NTTR-G1 EC4 GC4 Tape & Reel

C

AZ809NSTR-E1 AZ809NSTR-G1 EC5 GC5 Tape & Reel

SOT-23

-40 to 105

AZ809NRTR-E1 AZ809NRTR-G1 EC6 GC6 Tape & Reel

AZ810NLTR-E1 AZ810NLTR-G1 ED1 GD1 Tape & Reel

o

AZ810NTTR-E1 AZ810NTTR-G1 ED4 GD4 Tape & Reel

C

AZ810NSTR-E1 AZ810NSTR-G1 ED5 GD5 Tape & Reel

AZ810NRTR-E1 AZ810NRTR-G1 ED6 GD6 Tape & Reel

BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.

Part Number Marking ID

Packing Type

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Supply Voltage V

CC

RESET, RESET -0.3 to V

Input Current, V

Pin 20 mA

CC

-0.3 to 6 V

+0.3 V

CC

Output Current, RESET, RESET Pin 20 mA

Rate of Rise, V

CC

100 V/μs

Continuous Power Dissipation 320 mW

Junction Temperature T

Storage Temperature T

Lead Temperature (Soldering, 10sec) T

LEAD

J

STG

125

-65 to 150

300

o

C

o

C

o

C

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max­imum Ratings" for extended periods may affect device reliability.

Recommended Operating Conditions

Parameter Symbol Min Max Unit

Operating Junction Temperature Range T

J

-40 105

o

C

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Data Sheet

1A LOW DROPOUT LINEAR REGULATOR AP2218

3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810

Electrical Characteristics

(T

=-40oC to 105oC, Typical values at TA=25oC, VCC=5V for L devices, VCC=3.3V for T/S devices and VCC=3V

A

for R devices, unless otherwise specified.)

Parameter Symbol Conditions Min Typ Max Unit

Input Voltage (V

) Range V

CC

Supply Current I

Detect Voltage V

Detect Voltage Temperature
Coefficient

CC

CC

TH

TA=0oC to 70oC

T

=-40oC to 105oC

A

TA=-40oC to 85oC, VCC<5.5V,

L

=-40oC to 85oC, VCC<3.6V,

T

A

R/S/T

=85oC to 105oC, VCC<5.5V,

T

A

L

=85oC to 105oC, VCC<3.6V,

T

A

R/S/T

=25oC

T

L Devices
L: 4.63V

T Devices
T: 3.08V

S Devices
S: 2.93V

R Devices
R: 2.63V

A

T

=-40oC to 85oC

A

T

=85oC to 105oC

A

=25oC

T

A

T

=-40oC to 85oC

A

T

=85oC to 105oC

A

T

=25oC

A

T

=-40oC to 85oC

A

T

=85oC to 105oC

A

T

=25oC

A

T

=-40oC to 85oC

A

T

=85oC to 105oC

A

1.1 5.5

1.2 5.5

11 20

816

25

20

4.56 4.63 4.70

4.50 4.75

4.40 4.86

3.04 3.08 3.11

3.00 3.15

2.92 3.23

2.89 2.93 2.96

2.85 3.00

2.78 3.08

2.59 2.63 2.66

2.55 2.70

2.50 2.76

±0.003

%/

V

μA

V

o

C

to Reset Delay VCC=VTH to VTH-100mV 20 μs

V

CC

Dec. 2012 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

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Data Sheet

3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810

Electrical Characteristics (Continued)

(TA=-40oC to 105oC, Typical values at TA=25oC, VCC=5V for L devices, VCC=3.3V for T/S devices and VCC=3V
for R devices, unless otherwise specified.)

Parameter Symbol Conditions Min Typ Max Unit

Reset Active Timeout Period

Low RESET Output Voltage
(AZ809)

High RESET Output Voltage
(AZ809)

Low RESET Output Voltage
(AZ810)

High RESET Output Voltage
(AZ810)

V

V

T

=-40oC to 85oC

A

T

=85oC to 105oC

A

OL

VCC=VTH min, I

SINK

=1.2mA,

AZ809R/S/T

V

CC=VTH

min, I

SINK

=3.2mA,

AZ809L

>1.1V, I

V

CC

V

CC>VTH

=50μA0.3

SINK

max, I

SOURCE

=500μA,

AZ809R/S/T

V

CC>VTH

max, I

SOURCE

=800μA,

AZ809L

V

OL

VCC=VTH max, I

SINK

=1.2mA,

AZ810R/S/T

V

CC=VTH

max, I

SINK

=3.2mA,

AZ810L

OH

1.8V<VCC<V

SOURCE

=150μA

I

TH

min,

140 240 560 ms

100 840

0.3 V

0.4

0.8V

CC

VCC-1.5

0.3 V

0.4

0.8V

CC

V

V

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Data Sheet

V

CC

V

CC

AZ809

(AZ810)

RESET

(RESET)

GND

V

CC

RESET
INPUT

GND

5V

0V

5V

0V

5V

0V

RESET

RESET

V

CC

AZ809

AZ810

Active Reset

Timeout Period

V

TH

240ms

typical

20μs

typical

3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810

Operating Diagram

Note: The reset signal is asserted LOW for the AZ809 and HIGH for the AZ810 when the VCC signal falls below

the threshold trip voltage and remains asserted for 240ms typical after the V

has risen above the threshold.

CC

Typical Application

Figure 4. Reset Timing Diagram of AZ809/810

Figure 5. Typical Application of AZ809/810

Dec. 2012 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

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Data Sheet

2.300(0.091)

2.500(0.098)

1.200(0.047)

1.400(0.055)

0.920(0.036)

0.980(0.039)

0.300(0.012)

0.500(0.020)

1.900(0.075)REF

2.800(0.110)

3.000(0.118)

2.0°

3.0 °

0.500(0.020)

0.700(0.028)

1.050(0.041)REF

0.020(0.001)

0.100(0.004)

0.900(0.035)

1.100(0.043)

4×

R0.100(0.004)

7.0°

7.0°

0.550(0.022)REF

0.200(0.008)MIN

0.100(0.004) GAUGE PLANE

0.080(0.003)

0.150(0.006)

R0.100(0.004)

0.0°~10.0°

3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810

Mechanical Dimensions

SOT-23

Unit: mm(inch)

Dec. 2012 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

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BCD Semiconductor Manufacturing Limited

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particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or

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