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參數(shù)資料
| 型號： | MAX6735KASDD6-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | FETs - Nch 700V<VDSS; Surface Mount Type: N; Package: PW-MOLD; R DS On (Ω): (max 20); P D (W): (max 1) |
| 中文描述： | 3-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | MO-178BA, SOT-23, 8 PIN |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 244K |
| 代理商： | MAX6735KASDD6-T |
M
Overdrive, for which reset pulses are not generated.
The graph was produced using falling V
CC
_ pulses,
starting above V
TH
and ending below the reset thresh-
old by the magnitude indicated (reset threshold over-
drive). The graph shows the maximum pulse width that
a falling V
CC
transient typically might have without
causing a reset pulse to be issued. As the amplitude of
the transient increases (i.e., goes further below the
reset threshold), the maximum allowable pulse width
decreases. A 0.1μF bypass capacitor mounted close to
V
CC
_ provides additional transient immunity.
Watchdog Software Considerations
Setting and resetting the watchdog input at different
points in the program rather than
“
pulsing
”
the watch-
dog input high-low-high or low-high-low helps the
watchdog timer closely monitor software execution.
This technique avoids a
“
stuck
”
loop, in which the
watchdog timer continues to be reset within the loop,
preventing the watchdog from timing out. Figure 6
shows an example flow diagram in which the I/O dri-
ving the watchdog input is set high at the beginning of
the program, set low at the beginning of every subrou-
tine or loop, and then set high again when the program
returns to the beginning. If the program
“
hangs
”
in any
subroutine, the I/O continually asserts low (or high),
and the watchdog timer expires, issuing a reset or
interrupt.
Single-/Dual-/Triple-Voltage μP Supervisory
Circuits with Independent Watchdog Output
12
______________________________________________________________________________________
START
SET WDI
HIGH
PROGRAM
CODE
RETURN
SUBROUTINE
COMPLETED
HANG IN
SUBROUTINE
SUBROUTINE OR
PROGRAM LOOP
SET WDI LOW
Figure 6. Watchdog Flow Diagram
MAX6730–
MAX6735
V
REF
RESET
TIMEOUT
PERIOD
RESET
OUTPUT
DRIVER
WATCHDOG
TIMER
REF
V
CC
1
V
REF
/ 2
GND
V
CC
1
MR
V
CC
1
V
CC
1
V
CC
1
V
CC
2
MR
PULLUP
V
CC
1
V
CC
2
RSTIN
RST
WDO
WDI
Functional Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX6735KASFD1-T | FETs - Nch 700V<VDSS; ; Package: TO-220SIS; R DS On (Ω): (max 4.3); P D (W): (max 3) |
| MAX6735KASFD2-T | Single-/Dual-/Triple-Voltage µ.P Supervisory Circuits with Independent Watchdog Output |
| MAX6735KASVD2-T | Pch Power MOSFET; ; Package: TPS; R DS On (Ω): (max 0.28) (max 0.19); I_S (A): (max -5) |
| MAX6735KASVD3-T | Pch Power MOSFET; Surface Mount Type: N; Package: TO-220NIS; R DS On (Ω): (max 0.32) (max 0.21); I_S (A): (max -12) |
| MAX6735KASVD4-T | Pch Power MOSFET; Surface Mount Type: N/Y; Package: TO-220FL/SM; R DS On (Ω): (max 0.06) (max 0.038); I_S (A): (max -30) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6735KASFD1+T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6735KASFD1-T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6735KASFD2+T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6735KASFD2-T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6735KASFD3+T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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