概述
规格参数
数据手册MP6411GS 概述
Analog Circuit, 其他模拟IC
MP6411GS 规格参数
| 是否Rohs认证： | 符合 | 生命周期： | Active |
| 包装说明： | SOIC-8 | Reach Compliance Code： | compliant |
| HTS代码： | 8542.39.00.01 | 风险等级： | 5.57 |
| 模拟集成电路 - 其他类型： | ANALOG CIRCUIT | JESD-30 代码： | R-PDSO-G8 |
| 长度： | 4.9 mm | 信道数量： | 1 |
| 功能数量： | 1 | 端子数量： | 8 |
| 最高工作温度： | 125 °C | 最低工作温度： | -40 °C |
| 封装主体材料： | PLASTIC/EPOXY | 封装代码： | SOP |
| 封装等效代码： | SOP8,.23 | 封装形状： | RECTANGULAR |
| 封装形式： | SMALL OUTLINE | 峰值回流温度（摄氏度）： | NOT SPECIFIED |
| 座面最大高度： | 1.75 mm | 最大供电电压 (Vsup)： | 5.5 V |
| 最小供电电压 (Vsup)： | 4.5 V | 标称供电电压 (Vsup)： | 5 V |
| 表面贴装： | YES | 温度等级： | AUTOMOTIVE |
| 端子形式： | GULL WING | 端子节距： | 1.27 mm |
| 端子位置： | DUAL | 处于峰值回流温度下的最长时间： | NOT SPECIFIED |
| 宽度： | 3.9 mm | Base Number Matches： | 1 |
MP6411GS 数据手册
通过下载MP6411GS数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载MP6411
Windowed Watchdog Timer
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MP6411 is a windowed watchdog timer. It
is used to reset and monitor the microcontroller.
In normal operation, the MCU sends a trigger
signal to the MP6411 in a defined time window
cyclically. A missing or fault trigger signal
causes the watchdog to reset the MCU.
Windowed Watchdog
Power-On Reset during Power-Up and
Under Voltage
Programmable Short Window Mode or
Long Window Mode
Watchdog Disable Function
Low Shutdown Mode Current
SOIC8 Package
The MP6411 provides a reset signal (low-level
voltage) to the MCU during power-up or under
voltage. Its power supply (VCC) has 5V and
3.3V options.
APPLICATIONS
Automotive Systems
Industrial Systems
By setting MODE to high or low, the watchdog
operates in long window mode or short window
mode; the window is programmable.
All MPS parts are lead-free, halogen-free, and adhere to the RoHS
directive. For MPS green status, please visit the MPS website under
Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are registered
trademarks of Monolithic Power Systems, Inc.
The MP6411 is available in SOIC8 package.
TYPICAL APPLICATION
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
1
MP6411―WINDOWED WATCHDOG TIMER
ORDERING INFORMATION
Part Number*
MP6411GS
Package
SOIC-8
SOIC-8
Top Marking
See Below
MP6411GS-33
* For Tape & Reel, add suffix –Z (e.g. MP6411GS–Z);
TOP MARKING (MP6411GS)
MP6411: Product code of MP6411GS
LLLLLLLL: Lot number
MPS: MPS prefix
Y: Year code
WW: Week code
TOP MARKING (MP6411GS-33)
M6411-33: Product code of MP6411GS-33
LLLLLLLL: Lot number
MPS: MPS prefix
Y: Year code
WW: Week code
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
2
MP6411―WINDOWED WATCHDOG TIMER
PACKAGE REFERENCE
TOPVIEW
WDO
WDI
/WD_DIS
TIMER
VCC
MODE
GND
NC
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance (3)
SOIC-8…..………………………96……45…C/W
θJA
θJC
All pins ……………………...............-0.3V to +6V
(2)
Continuous power dissipation (TA = +25°C)
Notes:
SOIC8
…………........…………1.3W
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause an excessive die temperature, causing
the regulator to go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
Junction temperature…………... …………150°C
Lead temperature …………...... …………260°C
Storage temperature………….. -65°C to +150°C
Recommended Operating Conditions
Supply voltage (VCC)
MP6411 …………………………………………5V
MP6411-33 ……………………………………3.3V
Operating junction temp. (TJ)..... -40°C to 125°C
3) Measured on JESD51-7, 4-layer PCB.
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
3
MP6411―WINDOWED WATCHDOG TIMER
ELECTRICAL CHARACTERISTICS
VCC = 5V for MP6411, VCC = 3.3V for MP6411-33, TJ = +25C, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
Max Units
Power Supply
Timer voltage
RTIMER = 51k
0.3
16
10
25
14
V
MP6411, RTIMER = 100k
19
MP6411-33, RTIMER = 100k
MP6411, RTIMER = 51k
14
µA
32
Quiescent current
IQ
MP6411-33, RTIMER = 51k
18
MP6411,
WDO goes high with rising VCC
4.4
2.9
4.3
2.8
4.6
3
4.8
VPOR-HIGH
MP6411-33,
WDO goes high with rising VCC
3.1
V
4.7
Power on reset
threshold
MP6411,
WDO goes low with falling VCC
4.5
2.9
VPOR-LOW
MP6411-33,
WDO goes low with falling VCC
3
Timing
Single period
Power on delay(4)
T
t0
RTIMER = 51k
RTIMER = 51k
-10%
880
10
+10%
µs
cycle
Sync signal monitoring
time(5)
t1
t2
t3
t4
RTIMER = 51k
450
15
cycle
cycle
cycle
cycle
cycle
Watchdog window close
time (short mode)(4)
RTIMER = 51k, mode = low
RTIMER = 51k, mode = low
RTIMER = 51k, mode = high
RTIMER = 51k, mode = high
RTIMER = 51k
Watchdog window open
time (short mode) (4)
10
Watchdog window close
time (long mode) (4)
1500
1000
4
Watchdog window open
time (long mode) (4)
t5
t6
WDO reset pulse
width(4)
cycle
WDI_OK pulse width
10
5000
μs
Input and Output
MP6411
3.2
2.1
WDI logic high
WDI logic low
V
V
V
V
MP6411-33
MP6411
0.8
0.6
MP6411-33
MP6411
3.2
2.1
MODE logic high
MODE logic low
MP6411-33
MP6411
0.8
0.6
MP6411-33
MP6411 Rev. 1.1
www.MonolithicPower.com
4
1/24/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
MP6411―WINDOWED WATCHDOG TIMER
ELECTRICAL CHARACTERISTICS (continued)
VCC = 5V for MP6411, VCC = 3.3V for MP6411-33, TJ = +25C, unless otherwise noted.
Parameter
Symbol Condition
MP6411, MODE = 5V
Min
Typ
Max Units
0.1
1
MP6411-33, MODE = 3.3V
MP6411, MODE = 0V
MP6411-33, MODE = 0V
MP6411
MODE input Current
μA
5
8
3.3
6
3.2
2.1
/WD_DIS logic high
/WD_DIS logic low
V
MP6411-33
MP6411
0.8
V
MP6411-33
0.6
MP6411, WD_DIS = 5V
MP6411-33, WD_DIS = 3.3V
MP6411, WD_DIS = 0V
MP6411-33, WD_DIS = 0V
0.1
1
μA
μA
/WD_DIS input Current
WDO high
5
8
6
3.3
MP6411,
VCC = 5V, IWDO = 1mA
VCC-0.2
3.29
V
V
MP6411-33,
VCC=3.3V,RPull-Up=100K
MP6411,
VCC = 5V, IWDO = 1mA
0.2
0.1
0.1
MP6411,
VCC = 1V, IWDO = 300µA
WDO low
MP6411-33,
Sink 1mA Current
Notes:
4) Derived from bench characterization. Not tested in production.
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
5
MP6411―WINDOWED WATCHDOG TIMER
TYPICAL CHARATERISTICS
VCC=5V for MP6411, VCC=3.3V for MP6411-33, unless otherwise noted.
Quiescent Current vs.
Junction Temperature
MP6411, RTIMER=51k
Quiescent Current vs.
Junction Temperature
MP6411, RTIMER=100k
Quiescent Current vs.
Junction Temerature
MP6411-33, RTIMER=51k
28.5
28.0
27.5
27.0
26.5
26.0
25.5
25.0
18.0
16.0
14.0
12.0
17.0
16.8
16.6
16.4
16.2
16.0
-50 -25
0
25 50 75 100 125
-50 -25
0
25 50 75 100 125
-50 -25
0
25 50 75 100 125
Quiescent Current vs.
Junction Temerature
MP6411-33, RTIMER=100k
Single Period vs.
Junction Temperature
RTIMER=51k
Single Period vs. RTIMER
TA=25 C
11.0
10.0
9.0
910
900
890
880
870
860
850
8000
7000
6000
5000
4000
3000
2000
1000
0
8.0
-50 -25
-50 -25
0
25 50 75 100 125
0
25 50 75 100 125
0
100 200 300 400 500
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
6
MP6411―WINDOWED WATCHDOG TIMER
PIN FUNCTION
Pin #
Name
Description
Watchdog output. WDO outputs a reset signal to the MCU.
MP6411 WDO is the output of a inverter, it is not must to connect WDO to VCC or
another voltage source through a resistor.
1
WDO
MP6411-33 WDO is the open drain of a MOSFET and should be connected to VCC
or another voltage source through a resistor (e.g.100kΩ).
2
3
WDI
Watchdog input. WDI receives the trigger signal from the MCU.
Mode switching pin. Pull MODE high to make the watchdog operate in long window
mode; pull MODE low to make it work in short window mode. MODE has a weak
internal pull-up.
MODE
4
5
6
7
GND
NC
Ground.
Not connected.
VCC
Power input.
TIMER
Watchdog timer pin. TIMER sets the time-out with an external resistor
Watchdog disable pin. Pull /WD_DIS low to disable the watchdog; pull /WD_DIS
high to enable the watchdog. It has a weak internal pull-up.
8
/WD_DIS
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
7
MP6411―WINDOWED WATCHDOG TIMER
FUNCTIONAL BLOCK DIAGRAM
Figure 1: Functional Block Diagram
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
8
MP6411―WINDOWED WATCHDOG TIMER
TIMING DIAGRAM
Power-on reset and no sync signal
Synchronized by WDI and triggered in open window (MODE=0, short window mode)
t0
VCC
WDO
t2
t3
t1
t2
WDI_OK
WDI_OK
1
0
WDI
MODE
0
Synchronized by WDI and no trigger signal (MODE=0, short window mode)
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
9
MP6411―WINDOWED WATCHDOG TIMER
Synchronized by WDI and triggered in closed window (MODE=0, short window mode)
t6
t0
VCC
WDO
t2
WDI_OK
t1
t1
WDI_OK
1
0
WDI
0
MODE
Note: When the WDI_OK rising edge that comes at WDO is low, the t6 timer will be reset. Therefore, in
the situation above, the WDO reset signal maintains a t6+WDI_OK time.
Synchronized by WDI and triggered in open window (MODE=1, long window mode)
Synchronized by WDI and no trigger signal (MODE=1, long window mode)
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
10
MP6411―WINDOWED WATCHDOG TIMER
Synchronized by WDI and triggered in closed window (MODE=1, long window mode)
Note: When the WDI_OK rising edge that comes at WDO is low, the t6 timer will be reset. Therefore, in
the situation above, the WDO reset signal maintains a t6+WDI_OK time.
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
11
MP6411―WINDOWED WATCHDOG TIMER
STATE DIAGRAM
time-out t0
Sync signal
monitoring state
WDO reset state
WDI_OK &
MODE=1
WDI_OK &
MODE=0
MODE=1
Short window
close state
Long window
close state
MODE=0
MODE=1
MODE=0
WDI_OK
WDI_OK
time-out t2
time-out t4
time-out t6
WDI=0
Short window
open state
Long window
open state
time-out t1
WDI=0
time-out t5
time-out t3
WDO reset pulse
state
Note: The state diagram above does not include if a WDI error occurs.
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
12
MP6411―WINDOWED WATCHDOG TIMER
OPERATION
Supply Voltage
If no WDI_OK signal is received in t2+t3, the
watchdog outputs a reset signal and goes
into a sync signal monitoring state.
VCC= 5V10% is recommended for MP6411
normal operation; while VCC= 3.3V10% is
recommended for MP6411-33 normal operation.
WDO is pulled low when VCC rises to 1V or
above. After VCC rises to 90% (typically), WDO
will remain at a low level for t0 to reset the MCU.
If MODE is pulled high during short window
mode, the watchdog will go into long
window mode.
Long Window Mode
TIMER
If the MCU and watchdog are synchronized
correctly and MODE is high, the watchdog will
operate in long window mode, and the following
will occur:
Period T (s):
T s 15.75R
k 73.5
TIMER
RTIMER (k):
If WDI_OK is received in a window close
state (t4), the watchdog outputs a reset
signal and goes into a sync signal
monitoring state.
RTIMER k 0.063T s 4.67
For example: RTIMER=51kΩ, T0.88ms
Monitor MCU Synchronization Signal
When the watchdog is in a “sync signal
monitoring state,” the following will occur:
If WDI_OK is received in a window open
state (t5), the watchdog goes into a window
close state. The MCU works in normal
operation in this situation.
If the watchdog IC receives a WDI_OK
signal from the MCU within t1 (WDI remains
low for 10µs to 5ms), the timer will be reset,
and the watchdog works in normal
operation.
If no WDI_OK signal is received in t4+t5, the
watchdog outputs a reset signal and goes
into a sync signal monitoring state.
If MODE is pulled low during a long window
mode, the watchdog will go into a short
window mode.
If the watchdog does not receive the
WDI_OK signal from the MCU during t1, it
will generate a reset signal and go into
“sync signal monitor state” again.
Watchdog Disable
Short Window Mode
Pull /WD_DIS low to disable the watchdog; pull
it high to enable the watchdog. /WD_DIS has a
weak internal pull-up, so the watchdog is
enabled if /WD_DIS is left open.
If the MCU and watchdog are synchronized
correctly and MODE is low, the watchdog will
work in short window mode:
If WDI_OK is received in a window close
state (t2), the watchdog outputs a reset
signal and goes into a sync signal
monitoring state.
WDI Error
If a WDI signal remains at a low level for longer
than the maximum WDI_OK pulse width, it is
regarded as an error. When this error occurs,
WDO is pulled down until WDI returns to a high
level.
If WDI_OK is received in a window open
state (t3), the watchdog goes into a window
close state. The MCU works in normal
operation in this situation.
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
13
MP6411―WINDOWED WATCHDOG TIMER
PACKAGE INFORMATION
SOIC-8
0.189(4.80)
0.197(5.00)
0.050(1.27)
0.024(0.61)
0.063(1.60)
8
5
0.150(3.80)
0.157(4.00)
0.228(5.80)
0.244(6.20)
0.213(5.40)
PIN 1 ID
1
4
TOP VIEW
RECOMMENDED LAND PATTERN
0.053(1.35)
0.069(1.75)
SEATING PLANE
0.004(0.10)
0.010(0.25)
0.0075(0.19)
0.0098(0.25)
0.013(0.33)
0.020(0.51)
SEE DETAIL "A"
0.050(1.27)
BSC
SIDE VIEW
FRONT VIEW
0.010(0.25)
0.020(0.50)
x 45o
NOTE:
1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN
BRACKET IS IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS.
GAUGE PLANE
0.010(0.25) BSC
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH
OR PROTRUSIONS.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.004" INCHES MAX.
0.016(0.41)
0.050(1.27)
0o-8o
5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION AA.
6) DRAWING IS NOT TO SCALE.
DETAIL "A"
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MP6411 Rev. 1.1
1/24/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
14
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