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參數資料
| 型號： | MXD1816 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | LEAD FREE A3949SLB-T WITH TAPE & REEL |
| 中文描述： | 低功耗、微處理器復位電路，3引腳SC70/SOT23封裝 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 198K |
| 代理商： | MXD1816 |
General Description
The MXD1810–MXD1813/MXD1815–MXD1818 family of
microprocessor (μP) reset circuits monitor power sup-
plies in μP and digital systems. These devices provide
excellent circuit reliability and low cost by eliminating
external components and adjustments when used with
+2.5V/+3.0V/+3.3V (MXD1815–MXD1818), and +5V
(MXD1810–MXD1813) systems.
These circuits assert a reset signal whenever the V
CC
supply voltage declines below a preset threshold,
keeping reset asserted for at least 100ms after V
CC
rises above the reset threshold. The MXD1813/
MXD1818 also keep reset asserted for at least 100ms
after the output is momentarily pulled to GND by an
external push-button switch.
The MXD1812/MXD1817 have an active-high push-pull
RESET output. The MXD1810/MXD1815 (push-pull) and
MXD1811/MXD1813/MXD1816/MD1818 (open-drain)
have an active-low
RESET
output. The open-drain
devices (MXD1811/MXD1813/MXD1816/MXD1818)
have an internal pullup resistor to V
CC
. The
MXD1813/MXD1818 feature a debounced manual reset
feature that asserts a reset if the
RESET
pin is pulled
low for more than 1.5μs. When used to initiate manual
reset,
RESET
debounces signals from devices such as
mechanical switches. For devices with this feature, the
release of the external switch triggers the reset period.
The MXD1810–MXD1813/MXD1815–MXD1818 are
guaranteed to output the correct logic state for V
CC
down to +1V. These ICs provide a reset comparator
designed to ignore fast transients on V
CC
. Reset
thresholds are available between +2.18V and +4.62V.
These small, low-power (4μA) devices are ideal for use
in portable equipment. All are available in space-saving
3-pin SC70 and SOT23 packages, and are specified
from -40°C to +105°C.
Applications
Computers and Controllers
Intelligent Instruments
Set-Top Boxes
Printers
Automotive Systems
Critical μP and μC Monitoring
Portable/Battery-Powered Equipment
*
Patent pending
Features
o
Precision Monitoring of +2.5V, +3V, +3.3V, and
+5V Power-Supply Voltages
o
Available in Four Reset Output Configurations
o
Factory-Set Reset Threshold Voltages: 2.18V,
2.31V, 2.55V, 2.88V, 3.06V, 4.12V, 4.37V, 4.62V
o
±2.5% Reset Threshold Accuracy Over
Temperature
o
Fixed Reset Timeout Period: 100ms (min)
o
Guaranteed RESET/
RESET
Valid to V
CC
= +1V
o
Debounced Manual Reset Detect
(MXD1813/MXD1818)
o
Power-Supply Transient Immunity
o
No External Components
o
Low Power Consumption (4μA)
o
Pin Compatible with DS181_ Products (SOT23)
o
3-Pin SC70 and SOT23 Packages
M
Low-Power μP Reset Circuits in 3-Pin
SC70/SOT23
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
RESET
(RESET)
1
3
GND
V
CC
MXD181_X
SC70-3
TOP VIEW
2
() ARE FOR THE MXD1812/MXD1817
RESET
(RESET)
1
3
GND
V
CC
MXD181_U
SOT23-3
2
Pin Configurations
Ordering Information
19-2243; Rev 0; 10/01
Ordering Information continued at end of data sheet.
PART
TEMP. RANGE
-40
o
C to +105
o
C
-40
o
C to +105
o
C
PIN-PACKAGE
3 SOT23-3
3 SC70-3
MXD1810
UR_ _-T
MXD1810XR_ _-T
The MXD1810–MXD1813/MXD1815–MXD1818 are available
with factory-set V
CC
reset thresholds from +2.18V to +3.06V
(MXD1815–MXD1818) and +4.12V to +4.62V (MXD1810–
MXD1813). Choose the desired reset-threshold suffix from the
Reset Threshold Table and insert it in place of the “_ _” follow-
ing “R” in the part number. All devices are available in tape-
and-reel only in 2500 unit increments. Other threshold voltages
may be available. Contact factory for availability.
相關PDF資料 |
PDF描述 |
|---|---|
| MXD1816UR | Driver IC; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes RoHS Compliant: Yes |
| MXD1816XR | SEE A3950SLPTR-T |
| MXD1817 | A3950 4X4 QFN |
| MXD1817UR | A3950SEU-T WITH TAPE AND REEL |
| MXD1817XR | DMOS Driver; No. of Drivers:1; Supply Voltage Max:36V; Output Current Max:2.8A; Package/Case:16-TSSOP; Peak Reflow Compatible (260 C):Yes RoHS Compliant: Yes |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MXD1816UR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Power UP Reset Circuits in 3-Pin |
| MXD1816UR22 | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product 制造商:Rochester Electronics LLC 功能描述: |
| MXD1816UR22+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.18V 9UA 3PIN SOT-23 - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MXD1816UR22+T | 功能描述:監控電路 3-Pin uPower Reset Circuit 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 |
| MXD1816UR22-T | 功能描述:監控電路 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 |
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