參數(shù)資料
型號(hào)： MAX792RMJE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： Power Supply Supervisor
中文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, CDIP16
封裝： CERAMIC, DIP-16
文件頁(yè)數(shù)： 10/16頁(yè)
文件大?。?/td> 272K
代理商： MAX792RMJE
M
Microprocessor and Nonvolatile
Memory Supervisory Circuits
10
______________________________________________________________________________________
Low-Line Output
In internal threshold mode, the low-line comparator
monitors V
CC
with a threshold voltage typically 120mV
above the reset threshold, and with 15mV of hysteresis.
For normal operation (V
CC
above the reset threshold),
LOWLINE
is pulled to V
CC
. Use
LOWLINE
to provide an NMI
to the μP, as described in the previous section, when
V
CC
begins to fall (Figure 4).
Reset Function
The MAX792/MAX820 provide both RESET and
RESET
outputs. The RESET and
RESET
outputs ensure that the
μP powers up in a known state, and prevent code-exe-
cution errors during power-up, power-down, or
brownout conditions.
The reset function will be asserted during the following
conditions:
1) V
CC
less than the programmed reset threshold.
2)
MR
less than 1.30V typ.
3) Reset remains asserted for 200ms typ after V
CC
rises above the reset threshold or after
MR
has
exceeded 1.30V typ.
When reset is asserted, all the internal counters are
reset, the watchdog output (
WDO
)
and watchdog-pulse
output
(
WDPO
)
are set high, and the set watchdog-time-
out input (SWT) is set to (V
CC
- 0.6V) if it is not already
connected to V
CC
(for internal timeouts). The chip-
enable transmission gate is also disabled while reset is
asserted; the chip-enable input (
CE
IN) becomes high
impedance and the chip-enable output (
CE
OUT) is
pulled up to V
CC
.
MR
RESET
CE IN OV
CE OUT
25
μ
s MIN
12
μ
s TYP
15
μ
s TYP
Figure 2. Manual-Reset Timing Diagram
MAX792
MAX820
MANUAL RESET
OTHER
RESET
SOURCES
9
MR
*
*
*
.
DIODES NOT REQUIRED ON OPEN-DRAIN OUTPUTS
Figure 3. Diode "OR" connections allow multiple reset sources
to connect to
MR
.
MAX792
12
GND
3
V
CC
LLIN/REFOUT
RESET
RESET
LOW LINE
RESET IN/INT
4
5
2
10
1
TO
μ
P
TO
μ
P
TO
μ
P NMI
V
IN
Figure 4a. Connection for Internal Threshold Mode
MAX792
GND
V
CC
TO
μ
P
TO
μ
P
TO
μ
P NMI
2
1
10
RESET IN/INT
LLIN/REFOUT
RESET
RESET
LOW LINE
12
V
IN
R3 = 1.30V x V
CC
MAX
V
LOW LINE
x I
MAX
R2 = 1.30V x V
CC
MAX
V
RESET
x I
MAX
–
R3
R1 = V
CC
MAX
I
MAX
–
(R2 + R3)
I
MAX
= THE MAXIMUM DESIRED CURRENT
THROUGH THE VOLTAGE DIVIDED.
3
R3
R2
R1
Figure 4b. Connection for External Threshold Programming Mode
相關(guān)PDF資料
PDF描述
MAX792SCPE Power Supply Supervisor
MAX792SCSE Power Supply Supervisor
MAX792SEJE Power Supply Supervisor
MAX792SEPE Power Supply Supervisor
MAX792SESE Power Supply Supervisor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX792SC/D 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(guò)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(kāi)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
MAX792SCPE 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(guò)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(kāi)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
MAX792SCPE+ 功能描述:監(jiān)控電路 MPU & NV Memory 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(guò)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(kāi)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
MAX792SCSE 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(guò)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(kāi)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
MAX792SCSE+ 功能描述:監(jiān)控電路 MPU & NV Memory 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(guò)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(kāi)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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*