CXDR75103这些电路执行单一功能：每当VCC电源电压下降到预设阈值以下时，它们就断言一个重置信号，在VCC上升到重置阈值以上后，将其保持至少220ms。适用于各种电源电压操作的重置阈值可用。CXDR75103具有推挽和主动低复位输出。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CXDR75103非常适合用于便携式设备。CXDR75103有SOT-143封装，CXDR75103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。CXDR75103还提供了一个去噪手动复位输入
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[ CXDR75103 ]
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产品概述 返回TOP
These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 220ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The CXDR75103 have a push-pull and active-low 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 CXDR75103 ideal for use in portable equipment. The CXDR75103 are available in a SOT-143 packages.The CXDR75103 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. The CXDR75103 also provides a debounced manual reset input
产品特点 返回TOP
„Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages
„ Fully Specified Over Temperature
„ Push-Pull Active-low RESET Output
„ 220ms Min Power-On Reset Pulse Width
„ 10μA Supply Current
„ Guaranteed Reset Valid to VCC = +1V
„ Power Supply Transient Immunity
„ No External Components
„ Manual Reset Input
„ SOT-143 Package
„ 2% Threshold Accuracy
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
电路原理图 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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