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參數(shù)資料
| 型號： | DS1836D |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | 電源管理 |
| 英文描述： | 3.3V MicroManager(3.3V微管理器) |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8 |
| 封裝： | 0.300 INCH, DIP-8 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大小： | 66K |
| 代理商： | DS1836D |
DS1836A/B/C/D
022698 2/9
OPERATION
Power Monitor
The DS1836 provides the functions of detecting out–of–
tolerance conditions on a 3.3 volt or 5 volt power supply
and warning a processor based system of impending
power failure. When V
CC
is detected as out–of–toler-
ance; the RST will be forced active. When V
CC
returns
to a valid state the RST will remain active for about 350
ms and then return to an inactive state until the next V
CC
out–of–tolerance condition.
On power–up reset is kept active for approximately 350
ms after the power supply input has reached the
selected tolerance. This allows the power supply and
system power to stabilize before RST is released.
Power Switch (DS1836A & B)
The DS1836 switches the V
OUT
output between V
CC
and V
BAT
. On the initial power up V
OUT
draws current
from the V
BAT
input until V
CC
exceeds 3.9 volts. When
V
CC
exceeds 3.9 volts V
OUT
switches from V
BAT
to V
CC
and will not switch back to V
BAT
until V
CC
drops below
3.8 volts. When V
CC
is below 3.8 volts, power will be
drawn from the supply with the highest voltage either
V
CC
or V
BAT
.
Power Switch (DS1836C & D)
The DS1836 switches the V
OUT
output between V
CC
and V
BAT
. On the initial power up V
OUT
draws current
from the V
BAT
input until V
CC
exceeds 2.8 volts. When
V
CC
exceeds 2.8 volts V
OUT
switches from V
BAT
to V
CC
and will not switch back to V
BAT
until V
CC
drops below
2.6 volts. When V
CC
is below 2.6 volts, power will be
drawn from the supply with the highest voltage either
V
CC
or V
BAT
.
BLOCK DIAGRAM
Figure 1
V
CC
+
–
V
TOLERANCE
BIAS
T.C.
REFERENCE
350 ms
DELAY
LEVEL
SENSE AND
CONTROL
V
OUT
RST
(*RST)
V
BAT
IN
GND
+
–
NMI
* DS1836B and DS1836D
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1836D05 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC |
| DS1836D-10 | 功能描述:監(jiān)控電路 3.3/5V MicroManager 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 |
| DS1836D-10+ | 功能描述:監(jiān)控電路 3.3/5V MicroManager 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 |
| DS1836D-20 | 功能描述:監(jiān)控電路 3.3/5V MicroManager 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 |
| DS1836D-20+ | 功能描述:監(jiān)控電路 3.3/5V MicroManager 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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