CXDR75115 CXDR75116 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 140ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The CXDR75116L has an open-drain output stage, while the CXDR75115 have push-pull outputs. The CXDR75116’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The CXDR75115 have an active-low RESET output, while the CXDR75115 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 CXDR75115/CXDR75116 ideal for use in portable equipment. The CXDR75115/CXDR75116 are available in 3-pin SOT-23 and SC-70-3(SOT-323) packages
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产品概述 返回TOP
The CXDR75115/CXDR75116 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 140ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The CXDR75116L has an open-drain output stage, while the CXDR75115 have push-pull outputs. The CXDR75116’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The CXDR75115 have an active-low RESET output, while the CXDR75115 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 CXDR75115/CXDR75116 ideal for use in portable equipment. The CXDR75115/CXDR75116 are available in 3-pin SOT-23 and SC-70-3(SOT-323) 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 Three Output Configurations Push-Pull RESET Output (CXDR75115L) Push-Pull RESET Output (CXDR75115H) Open-Drain RESET Output (CXDR75116L)
„ 140ms 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 and SC-70-3(SOT-323) 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 |
