APX825A4-44W6G-7 [DIODES]
Power Management Circuit, PDSO6;
| 型号： | APX825A4-44W6G-7 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Power Management Circuit, PDSO6 光电二极管 |
| 文件： | 总12页 (文件大小：177K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Description
Pin Assignments
(Top View)
The APX823/APX824/APX825A family of supervisors
provides circuit initialization and timing supervision, primarily
for DSP and processor-based systems.
5
4
1
2
3
VCC
RESET
GND
During power-on,
is asserted when supply voltage
RESET
APX823
VCC becomes higher than 1.1V. Thereafter, the supply
voltage supervisor monitors VCC and keeps active as
RESET
WDI
MR
long as VCC remains below the threshold voltage VTH-. An
internal timer delays the return of the output to the inactive
state (high) to ensure proper system reset. The delay time, td
SOT25
starts after VCC has risen above the threshold voltage VTH-
When the supply voltage drops below the threshold voltage
TH-, the output becomes active (low) again. No external
components are required. All the devices of this family have a
fixed-sense threshold voltage VTH- set by an internal voltage
divider.
.
(Top View)
V
5
4
1
2
3
VCC
RESET
GND
APX824
The APX823/APX825A devices incorporate a manual reset
WDI
RESET
input,
. A low level at
causes
MR
to become
RESET
MR
active. The APX824/APX825A devices include a high-level
output RESET. APX823/APX824/APX825A have a watchdog
timer that is periodically triggered by a positive or negative
transition at WDI. When the supervising system fails to
retrigger the watchdog circuit within the time-out interval,
SOT25
(Top View)
6
1
VCC
ttout,
becomes active for the time period td. This
RESET
GND
RESET
event also reinitializes the watchdog timer. Leaving WDI
unconnected disables the watchdog.
2
3
APX825A
SOT26
5
4
WDI
In applications where the input to the WDI pin may be active
(transitioning high and low) when the APX823/APX824/APX8
RESET
MR
25A asserting
the APX823/APX824/APX825A does
RESET
not return to a non-reset state when the input voltage is
above Vt. The product spectrum is designed for supply
voltage of 2.5V, 3V, 3.3V and 5V. The circuits are available in
a
SOT25
and
SOT26
packages.
The
APX823/APX824/APX825A devices are characterized for
operation over a temperature range of -40oC to 105oC.
Applications
Features
•
Applications Using DSPs, Microcontrollers, or
Microprocessors
•
Power-on reset generator with fixed delay time of 200ms
Typ
•
•
•
•
•
•
•
Industrial Equipment
Programmable Controls
Automotive Systems
Portable/Battery-Powered Equipment
Intelligent Instruments
•
•
Manual reset input (APX823/APX825A)
Reset output available in active-low
(APX823/APX824/APX825A), active-high
(APX824/APX825A)
Supply voltage supervision range 2.5V, 3V, 3.3V, 5V
Watchdog timer
•
•
•
•
•
Wireless Communications Systems
Notebook/Desktop Computers
Supply current of 30μA (Typ.)
Temperature range: -40°C to 85°C
SOT25 and SOT26: Available in “Green” Molding
Compound (No Br, Sb)
•
Lead Free Finish/RoHS Compliant (Note 1)
Note:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes.
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Typical Application Circuit
VCC
CIN
100nF
VCC
RESET
VCC
RESET
APX8XX
WDI
Microprocessor
I/O
MR
GND
GND
Pin Descriptions
Pin Name
Description
GND
Ground
RESET
(RESET)
VCC
Reset output pin
Operating voltage input
Watchdog input
WDI
Manual reset
MR
Functional Block Diagram
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© Diodes Incorporated
APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Absolute Maximum Ratings (Over operating ambient temperature range, unless otherwise noted)*
Symbol
Parameter
Rating
5
Unit
KV
V
ESD HBM Human Body Model ESD Protection
ESD MM Machine Model ESD Protection
200
6.0
VCC
Supply Voltage
V
VRESET
-0.3 to (VCC+0.3)
V
RESET, RESET , MR , WDI
Input Current VCC
ICC
IO
20
20
mA
mA
Maximum High Output Current
Derating Factor Above
SOT25
SOT26
SOT25
SOT26
SOT25
SOT26
SOT25
SOT26
6.2
mW/°C
mW
TA = 25oC
5.8
500
TA = 25oC Power Rating
470
Continuous Total Power
Dissipation
PD
220
TA = 70oC Power Rating
TA = 85oC Power Rating
mW
210
125
mW
120
TOP
TST
Operating Junction Temperature Range
Storage Temperature Range
-40 to 105
-65 to 150
°C
°C
* Stresses beyond 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-rated conditions for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
VCC
Parameter
Min
1.1
0
Max
5.5
Unit
V
Supply Voltage
Input Voltage
VIN
(VCC+0.3)
V
VIH
VIL
0.7×VCC
-
V
V
High-level Input Voltage at MR and WDI
Low-level Voltage
-
0.3×VCC
100
Δt/ΔV
-
ns/V
oC
Input Transition Rise and Fall Rate at MR or WDI
Operating Ambient Temperature Range
VCC Rising Time (VCC = 0~VT)
TA
TR
-40
-
85
100
V/ uS
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Electrical Characteristics (Over recommended operating ambient temperature range, unless otherwise noted)
Symbol
Parameter
APX823/APX824/APX825A -
Test Conditions
VCC= VTH-+0.2V
IOH=-20μA
Min
Typ.
Max
Unit
29/26/23
0.8×VCC
-
-
V
VCC= VTH-+0.2V
IOH=-30μA
APX823/APX824/APX825A -
40/31
RESET
V
CC= VTH-+0.2V
APX823/APX824/APX825A
–46/44
High-level
Output Voltage
VOH
VCC-1.5V
-
-
-
-
V
V
I
OH=-120μA
CC > 1.8V,
OH = -100μA
V
APX824/APX825A
-29/26/23
I
RESET
0.8×VCC
VCC > 1.8V,
APX824/APX825A -
46/44/40/31
IOH = -150μA
VCC= VTH-+0.2V
APX824/APX825A
-29/26/23
I
OL=1mA
CC= VTH-+0.2V
OL=1.2mA
CC= VTH-+0.2V
IOL=3mA
CC= VTH--0.2V
V
RESET APX824/APX825A -40/31
APX824/APX825A -46/44
-
-
0.4
V
I
V
Low-level
Output Voltage
VOL
V
APX823/APX824/APX825A -
29/26/23
IOL=1mA
VCC= VTH--0.2V
APX823/APX824/APX825A -
-
-
-
-
0.4
0.4
V
V
RESET
40/31
I
OL=1.2mA
VCC= VTH--0.2V
IOL=3mA
APX823/APX824/APX825A -
46/44
VCC > 1.1V,
IOL=20μA
VRESET Power-up Reset Voltage (see Note 2)
APX823/APX824/APX825A -23
2.21
2.59
2.88
3.02
3.93
4.31
4.56
2.20
2.57
2.86
3.00
3.92
4.29
4.54
2.25
2.63
2.93
3.08
4.00
4.38
4.63
2.25
2.63
2.93
3.08
4.00
4.38
4.63
2.30
2.69
3.00
3.15
4.08
4.47
4.72
2.30
2.69
3.00
3.15
4.08
4.47
4.72
APX823/APX824/APX825A -26
APX823/APX824/APX825A -29
APX823/APX824/APX825A -31
APX823/APX824/APX825A -40
APX823/APX824/APX825A -44
APX823/APX824/APX825A -46
APX823/APX824/APX825A -23
APX823/APX824/APX825A -26
APX823/APX824/APX825A -29
APX823/APX824/APX825A -31
APX823/APX824/APX825A -40
APX823/APX824/APX825A -44
APX823/APX824/APX825A -46
TA = 0oC -85oC
V
Negative-going
Input Threshold
Voltage
VTH-
(see Note 3)
TA= -40oC -85oC
V
Note:
2. The lowest supply voltage at which
becomes active. TR , VCC > 15μs/V.
RESET
3. To ensure best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1μF) should be placed near the supply terminals.
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Electrical Characteristics (cont.)
Symbol
Parameter
Test Conditions
Min
Typ.
Max
Unit
APX823/APX824/APX825A -23
APX823/APX824/APX825A -26
APX823/APX824/APX825A -29
APX823/APX824/APX825A -31
APX823/APX824/APX825A -40
APX823/APX824/APX825A -44
APX823/APX824/APX825A -46
VCC = VTH to (VTH – 100mV)
-
50
-
Hysteresis at VCC
Input
Vhys
mV
-
50
20
-
TS
Set-up Time
μs
WDI=VCC
,
Average High-
level Input
Current
IIH(AV)
-
-
120
-
-
μA
Time average
(dc=88%)
WDI
WDI=0.3V,
Average Low-
IIL(AV) level Input
Current
VCC=5.5V time
average (dc=12%)
-15
μA
High-level Input
Current
IIH
IIL
WDI
WDI
WDI=VCC
-
-
120
120
160
160
μA
μA
WDI=0.3V,
Low-level Input
Current
V
CC=5.5V
WDI and MR
Unconnected, Outputs
unconnected
ICC
Supply Current
V
CC = VTH-+0.2V
-
-
30
40
μA
60
50
5
-
-
-
kΩ
ppm/oC
pF
Internal Pull-up Resistor at MR
OUT Temperature Coefficient
TC
Ci
V
VI = 0V to 5.5V
-
Input Capacitance at MR , WDI
SOT25 (Note 4)
SOT26 (Note 4)
SOT25 (Note 4)
SOT26 (Note 4)
161
169
27
θJA
θJC
Thermal Resistance Junction-to-Ambient
oC/W
oC/W
Thermal Resistance Junction-to-Case
28
Note:
4. Test condition for SOT25 and SOT26: Devices mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Timing Requirements (@ RL = 1mΩ, CL = 50pF, TA = 25°C)
Symbol
Parameter
at MR
Test Conditions
Min
100
50
Typ.
Max
Unit
ns
V
CC> VTH-+0.2V, VIL=0.3×VCC, VIH=0.7×VCC
CC> VTH-+0.2V, VIL=0.3×VCC, VIH=0.7×VCC
-
-
-
-
tW
Pulse Width
at WDI
V
ns
Switching Characteristics (@ RL = 1mΩ, CL = 50pF, TA = 25°C)
Symbol
Parameter
Test Conditions
Min Typ. Max
Unit
VCC> VTH-+0.2V,
ttout
Watchdog Time Out
Delay Time
APX823/APX824/APX825A
1.12
140
1.6
2.4
s
See timing diagram
VCC> VTH-+0.2V,
td
APX823/APX824/APX825A
200 280
ms
μs
μs
μs
μs
See timing diagram
VCC> VTH-+0.2V,
MR to RESET
VIL=0.3×VCC
,
-
-
-
-
-
-
-
-
0.1
25
Propagation (Delay)
Time, High-to-low-level
Output
delay (APX823/APX825A)
VIH=0.7×VCC
tPHL
VIL= VTH--0.2V,
VIH= VTH-+0.2V
VCC> VTH-+0.2V,
VCC to RESET delay
MR to RESET delay
(APX824/APX825A)
VIL=0.3×VCC
,
0.1
25
Propagation (Delay)
Time, Low-to-high-level
Output
VIH=0.7×VCC
VIL= VTH--0.2V,
VIH= VTH-+0.2V
tPLH
VCC to RESET delay
(APX824/APX825A)
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Timing Diagram
RESET vs Vcc Timing Diagram
Vth
Vcc
Vth
td
td
td
/RESET
RESET
Vth
td
RESET vs /MR Timing Diagram
Vth
Vcc
/MR
td
td
/RESET
RESET vs WDI Timing Diagram
Vth
Vcc
WDI
td
tWD
td
tWD
td
/RESET
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Typical Characteristics
RESET Threshold Voltage vs. Temperature
RESET Timeout Period vs. Temperature
3.2
250
240
230
220
210
200
190
180
170
160
150
3.15
3.1
3.05
3
2.95
2.9
2.85
2.8
-40℃ -25℃ 0℃
25℃ 50℃ 85℃ 105℃ 125℃
-40℃ -25℃ 0℃
25℃ 50℃ 85℃ 105℃ 125℃
Temperature
Temperature
Vcc Supply Current vs. Temperature
(Vcc=3.3V Vth=2.93V)
Supply Curreny vs. Vcc
40
35
30
25
20
15
10
5
35
34
33
32
31
30
29
28
27
26
25
0
1.5V
2.5V
3.3V
4.0V
5.0V
5.5V
-40℃ -25℃ 0℃
25℃ 50℃ 85℃ 105℃ 125℃
Vcc
Temperature
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Ordering Information
APX82 XX - XX XX G - 7
Part No.
Voltage
Package
Green
Packing
46 : 4.63
44 : 4.38
40 : 4.00
31 : 3.08
29 : 2.93
26 : 2.63
23 : 2.25
3 : APX823
4 : APX824
5A : APX825A
G : Green
W5 : SOT25
W6 : SOT26
7 : Tape & Reel
7” Tape and Reel
Packaging
(Note 5)
SOT25
Device
Package Code
Quantity
Part Number Suffix
APX823-XXW5G-7
APX824-XXW5G-7
APX825A-XXW6G-7
W5
W5
W6
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
-7
-7
-7
SOT25
SOT26
Notes:
5. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
Marking Information
(1) SOT25
( Top View )
5
4
XX : Identification code
Y : Year 0~9
W X
XX Y
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
X : A~Z : Green
1
2
3
(2) SOT26
( Top View )
5
6
4
XX : Identification code
Y : Year 0~9
W X
XX Y
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
X : A~Z : Green
1
2
3
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Marking Information (cont.)
Marking Table
Device
Package Type
Identification Code
APX823-46W5
APX823-44W5
APX823-40W5
APX823-31W5
APX823-29W5
APX823-26W5
APX823-23W5
APX824-46W5
APX824-44W5
APX824-40W5
APX824-31W5
APX824-29W5
APX824-26W5
APX824-23W5
APX825A-46W6
APX825A-44W6
APX825A-40W6
APX825A-31W6
APX825A-29W6
APX825A-26W6
APX825A-23W6
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT26
SOT26
SOT26
SOT26
SOT26
SOT26
SOT26
W1
W2
W3
W4
W5
W6
W7
T2
T3
T4
T5
T6
T7
T8
T9
TA
TB
TC
TD
TE
TF
Package Outline Dimensions (All Dimensions in mm)
(1) Package Type: SOT25
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© Diodes Incorporated
APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
Package Outline Dimensions (cont.) (All Dimensions in mm)
(2) Package Type: SOT26
Notes:
6. 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
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APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
APX823/APX824/APX825A
PROCESSOR SUPERVISORY CIRCUITS
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS
DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
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changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability
arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any
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herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies
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Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall
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Products described herein may be covered by one or more United States, international or foreign patents pending. Product names
and markings noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without
the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided
in the labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected
to cause the failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or
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concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems,
notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further,
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 © 2011, Diodes Incorporated
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© Diodes Incorporated
APX823/APX824/APX825A
Document number: DS31323 Rev. 4 - 2
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