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參數(shù)資料
| 型號(hào)： | MAX690ACSA-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Microprocessor Supervisory Circuits |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 661K |
| 代理商： | MAX690ACSA-T |
MAX690A/MAX692A/MAX802L/MAX802M/MAX805L
Microprocessor Supervisory Circuits
_______________________________________________________________________________________
5
______________________________________________________________Pin Description
NAME
FUNCTION
MAX805L
1
VOUT
2
VCC
+5V Supply Input
3
GND
Ground
4
PFI
5
PFO
6
WDI
7
RESET
8
VBATT
Power-Fail Comparator Input. When PFI is less than 1.25V, PFO goes
low. Connect PFI to GND or VCC when not used.
Power-Fail Output. When PFI is less than 1.25V, PFO goes low;
otherwise PFO stays high.
Watchdog Input. If WDI remains high or low for 1.6sec, the internal
watchdog timer runs out and reset is triggered. If WDI is left floating or
connected to a high-impedance three-state buffer, the watchdog
feature is disabled. The internal watchdog timer clears whenever reset
is asserted, WDI is three-stated, or WDI sees a rising or falling edge.
PIN
MAX690A/MAX692A
MAX802L/MAX802M
Reset Output. Whenever RESET is triggered, it pulses low for 200ms. It
stays low when VCC is below the reset threshold (4.65V in the
MAX690A/MAX802L and 4.4V in the MAX692A/MAX802M) and remains
low for 200ms after VCC rises above the reset threshold. A watchdog
timeout also triggers RESET.
Supply Output for CMOS RAM. When VCC is above the reset threshold,
VOUT connects to VCC through a P-channel MOSFET switch. When VCC
is below the reset threshold, the higher of VCC or VBATT will be
connected to VOUT.
Backup-Battery Input. When VCC falls below the reset threshold, VBATT
will be switched to VOUT if VBATT is 20mV greater than VCC. When VCC
rises to 20mV above VBATT, VOUT will be reconnected to VCC. The 40mV
hysteresis prevents repeated switching if VCC falls slowly.
–
7
RESET
Active-High Reset Output is the inverse of RESET. When RESET is
asserted, the RESET output voltage = VCC or VBATT, whichever is
higher.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX690AEJA | Microprocessor Supervisory Circuits |
| MAX690AESA-T | Microprocessor Supervisory Circuits |
| MAX690AMJA/883B | Microprocessor Supervisory Circuits |
| MAX690MJA/883B | Microprocessor Supervisory Circuits |
| MAX690RCSA-T | 3.0V/3.3V Microprocessor Supervisory Circuits |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX690AEJA | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)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 |
| MAX690AEPA | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)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 |
| MAX690AEPA+ | 功能描述:監(jiān)控電路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)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 |
| MAX690AESA | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)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 |
| MAX690AESA/GG8 | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)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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