The CXDR75101/CXDR75102 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, 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 CXDR75102 has an open-drain output stage, while the CXDR75101 have push-pull outputs. The CXDR75102s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The CXDR75101have an 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 CXDR75101 CXDR75102ideal for use in portable equipment
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[ CXDR75101/2 ]"
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产品概述 返回TOP
The CXDR75101/CXDR75102 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, 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 CXDR75102 has an open-drain output stage, while the CXDR75101 have push-pull outputs. The CXDR75102s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The CXDR75101have an 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 CXDR75101 CXDR75102ideal for use in portable equipment. The CXDR75101 CXDR75102are available in 3-pin SOT-23 packages.
产品特点 返回TOP
„ Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages
„ Fully Specified Over Temperature
„ Available in two Output Configurations Push-Pull RESET Output (CXDR75101) Open-Drain RESET Output (CXDR75102)
„ 220ms min Power-On Reset Pulse Width
„ 10μA Supply Current
„ Guaranteed Reset Valid to VCC = +1V
„ Power Supply Transient Immunity
„ No External Components
„ 3-Pin SOT-23 Packages
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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|
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 |
