CXDR75108 CXDR75109具有开漏输出级，而CXDR75108具有推拉输出。CXDR75109L的开漏复位输出需要一个上拉电阻器，该电阻器可以连接到高于VCC的电压。GCXDR75108具有激活的低复位输出，而CXDR75108具有激活的高复位输出。复位比较器被设计成忽略VCC上的快速瞬变，并且输出保证在VCC低至1V的正确逻辑状态。低电源电流使CXDR75108 CXDR75109非常适合用于便携式设备。CXDR75108 CXDR75109有3针SOT-23、TO-92、SC-70-3（SOT-323）和SOT-89封装。CXDR75108 CXDR75109是微处理器（μP）监控电路，用于监控μP和数字系统中的电源。当与+5V，+3.3V，+3.0V供电的电路一起使用时，通过消除外部元件和调整，它们提供了卓越的电路可靠性和低成本。这些电路执行一个单一的功能：每当VCC电源电压下降到预设阈值以下时，它们就断言一个复位信号。适用于各种电源电压操作的重置阈值可用。
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[ CXDR75108/9 ]
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7.相关产品
产品概述 返回TOP
The CXDR75109L has an open-drain output stage, while the CXDR75108 have push-pull outputs. The CXDR75109L’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The GCXDR75108 have an active-low RESET output, while the CXDR75108 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Low supply current makes the CXDR75108 CXDR75109 ideal for use in portable equipment. The CXDR75108 CXDR75109 are available in 3-pin SOT-23, TO-92, SC-70-3(SOT-323) and SOT-89 packages The CXDR75108 CXDR75109 are microprocessor (μP) supervisory circuits used to monitor the power supplies in μP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V- powered circuits. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available.
产品特点 返回TOP
„ Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages
„ Fully Specified Over Temperature
„ Available in Three Output Configurations Push-Pull RESET Output (CXDR75108L) Push-Pull RESET Output (CXDR75108H) Open-Drain RESET Output (CXDR75109L)
„ 2ms max Power-On Reset Pulse Width
„ 14μA Supply Current
„ Guaranteed Reset Valid to VCC = +1V
„ Power Supply Transient Immunity
„ No External Components
„ 3-Pin SOT-23,TO-92, SC-70-3(SOT-323) and SOT-89 Packages
„ 2% Reset Threshold Accuracy with 5% Hysteresis
应用范围 返回TOP
„ Computers
„ Controllers
„ Intelligent Instruments
„ Critical μP and μC Power Monitoring
„ Portable / Battery-Powered Equipment
„ Automotive
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产品封装图 返回TOP
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|
Part NO. |
VCC(V min |
VCC(V max |
Detecting Voltage(V) |
Manual |
Delay (ms) |
VthAcc uracy(%) |
Isupply (μA) |
Note |
Package |
|
1 |
5.5 |
2.93 |
N |
360 |
-- |
9 |
CXDR75101 is a Push-Pull Reset CXDR75102 is an OpenDrain Reset |
SOT23 |
|
|
1 |
5.5 |
3/3.3/5 |
Y |
360 |
2 |
10 |
Push-Pull Active-low RESET Output Manual Reset Input |
SOT143 |
|
|
1.1 |
5.5 |
2.25/2.63 2.93/4.55 |
Y |
200 |
2 |
10 |
CXDR75104/5/6 has a watchdog output CXDR75104/5 has MR# |
SOT23-5 |
|
|
1.1 |
5.5 |
2.25/2.63 2.93/4.55 |
Y |
200 |
2 |
10 |
Push-Pull Output,Dual outputs |
SOT23-5 |
|
|
1 |
5.5 |
2.6/2.9/3.1 3.3/3.9/4.3 |
N |
2 |
2 |
16.5 |
CXDR75108H/L is a Push-Pull High/Low Reset CXDR75109L is an Open-drain Low Reset |
SOT23 SC70-3 TO92/SOT89 |
|
|
1 |
5.5 |
2.3/2.5 |
N |
0.06 |
1.5 |
3.3 |
CXDR75110H is an Open-Drain High Reset CXDR75110L is an Open-Drain Low Reset |
SC70-4 SC82 SOT343 |
|
|
2.5 |
5.5 |
Individual Set by Resistor |
N |
140 |
2.5 |
4 |
CXDR75111H/L is a Push-Pull High/Low Reset CXDR75112L is an Open-Drain Low Reset |
SOT23-5 |
|
|
2.7 |
5.5 |
Individual Se tby Resistor |
Y |
200 |
2 |
18 |
CXDR75113H/L is a Push-Pull High/Low Reset CXDR75114L is an Open-Drain Low Reset |
SOT23-5 |
|
|
1 |
5.5 |
2.63/2.93/ 3.08/4.0/ 4.38/4.63 |
N |
140 |
2 |
10 |
CXDR75115H/L is a Push-Pull High/Low Reset CXDR75116L is an Open-Drain Low Reset |
SOT23 SC70-3 |
|
|
1 |
5.5 |
2.64/2.91/3.1 3.96/4.32/4.6 |
Y |
230 |
2 |
14 |
CXDR75117H/L is a Push-Pull High/Low Reset CXDR75118L is an Open-Drain Low Reset |
SOT25 SC70-5 SOT143 |
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