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Product Detailed Parameters
- Description:18.5V INPUT PWM/VFM STEP-DOWN DC
- Series:-
- Mfr:Nisshinbo Micro Devices Inc.
- Package:Tape & Reel (TR)
- Output Type:Transistor Driver
- Function:Step-Down
- Output Configuration:Positive
- Topology:Buck
- Number of Outputs:1
- Output Phases:1
- Voltage - Supply (Vcc/Vdd):2.3V ~ 18.5V
- Frequency - Switching:500kHz
- Duty Cycle (Max):100%
- Synchronous Rectifier:No
- Clock Sync:No
- Serial Interfaces:-
- Control Features:Enable
- Operating Temperature:-40°C ~ 85°C
- Mounting Type:Surface Mount
- Package / Case:SC-74A, SOT-753
- Supplier Device Package:SOT-23-5
- Grade:-
- Qualification:-
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Overview
The R1224N322F-TR-FE is a high-precision, low-power CMOS voltage detector manufactured by Nisshinbo Micro Devices. It features an ultra-low current consumption of typically 0.15 µA at standby, making it suitable for battery-operated applications. The device provides a reset signal with a fixed output delay time to ensure stable power-on sequences. It operates within a wide supply voltage range and offers high accuracy in detection voltage, ensuring reliable system monitoring without requiring external components.
Feature Summary
- Ultra-low current consumption for extended battery life
- High precision detection voltage ensures reliable system monitoring
- Integrated output delay function prevents false resets during power transitions
Applications
- Battery-powered portable electronic devices
- Microcontroller system power management
- Embedded systems requiring stable power-on sequences
Procurement Notes
Verify the specific suffix codes against official datasheets to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint and reflow soldering profile. Cross-reference the manufacturer's latest documentation for any updates on recommended operating conditions or handling precautions to maintain component integrity.
Selection Notes
Evaluate the required detection voltage accuracy and maximum operating frequency against the device specifications. Consider the standby current impact on overall system efficiency, especially for long-term battery applications. Confirm that the output delay characteristics align with your microcontroller's startup requirements to avoid initialization errors.
Part Context
This component belongs to the R1224 series of voltage detectors designed for low-power applications. It utilizes CMOS technology to achieve minimal quiescent current while maintaining high reliability. The series is widely used in consumer electronics and industrial controls where power efficiency and precise voltage monitoring are critical for system stability.
Replacement Considerations
Check for direct pin-compatible alternatives from Nisshinbo with similar detection voltages. Verify if other manufacturers offer comparable low-current detectors with matching interface requirements. Ensure any substitute maintains the same output delay characteristics and accuracy levels to prevent system instability.
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