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參數資料
| 型號： | DS1834 |
| 英文描述： | Dual EconoReset with Pushbutton |
| 文件頁數： | 1/7頁 |
| 文件大小： | 106K |
| 代理商： | DS1834 |
1 of 7
071700
FEATURES
5V power-on reset
3.3V power-on reset
Internal power is drawn from higher of either
the 5V
IN
input or the 3.3V
IN
input
Excellent for systems designed to operate
with dual power supplies
Asserts resets during power transients
Pushbutton reset input for system override
Maintains reset for 350 ms after V
CC
returns
to an in-tolerance condition
Reduces need for discrete components
Precision temperature-compensated voltage
reference and voltage sensor
8-pin DIP, 8-pin SOIC, and 8-pin
μ
-SOP
available
CMOS output for low current operation on
the DS1834 and DS1834D
Operating temperature of -40
°
C to +85
°
C
PIN ASSIGNMENT
PIN DESCRIPTION
5V
IN
5V
RST
(*RST) - 5V Reset Output
5V TOL
GND
PBRST
3.3V TOL
3.3V
RST
(*RST) - 3.3V Reset Output
3.3V
IN
- 3.3V Power Supply Input
*DS1834D Active High Reset
- 5V Power Supply Input
- Selects 5V Input Tolerance
- Ground
- Pushbutton Reset
- Selects 3.3V Input Tolerance
DESCRIPTION
The DS1834 Dual EconoResets monitors three vital system conditions: 5-volt supply, 3.3-volt supply,
and an external override. First a precision temperature reference and comparator circuit monitor the status
of the 5-volt supply and the 3.3-volt supply. When an out-of-tolerance condition is detected, an internal
power-fail signal is generated which forces the reset of the affected supply to an active state.
Lastly, the DS1834 supports an external reset via an internally debounced pushbutton input. When the
pushbutton is pulled low both resets will be asserted for approximately 350 ms after the pushbutton is
released.
DS1834/A/D
Dual EconoReset with Pushbutton
www.dalsemi.com
DS1834 8-Pin SOIC (150-mil)
1
2
3
4
8
7
6
5
5V
IN
5V RST
5V TOL
GND
3.3V
IN
3.3V RST
3.3V TOL
PBRST
DS1834 8-Pin
μ
-SOP (118-mil)
5V
IN
5V RST (*RST)
5V TOL
GND
3.3V
IN
3.3V RST (*RST)
3.3V TOL
PBRST
1
2
3
4
8
7
6
5
DS1834 8-Pin DIP (300-mil)
5V
IN
5V RST
5V TOL
GND
3.3V
IN
3.3V RST
3.3V TOL
PBRST
1
2
3
4
8
7
6
5
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1834/A/D | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual EconoReset with Pushbutton |
| DS1834+ | 功能描述:監控電路 Dual EconoReset w/Pushbutton RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| DS1834A | 功能描述:監控電路 Dual EconoReset w/Pushbutton RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| DS1834A+ | 功能描述:監控電路 Dual EconoReset w/Pushbutton RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| DS1834A+T&R | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 4.63V/2.88V 50UA 8PDIP - Tape and Reel |
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