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HomeProductsIntegrated Circuits (ICs)PMIC - SupervisorsRNA51953AP#T0
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RNA51953AP#T0 - Renesas Electronics America Inc

Manufacturer Part Number
RNA51953AP#T0
Manufacturer
Renesas Electronics Corporation
Allelco Part Number
32D-RNA51953AP#T0
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
12,900 pcs available, New & Original
Parts Description
IC SUPERVISOR 1 CHANNEL 8DIP
Package
Tape & Reel (TR)
Data sheet
RNA51953AP#T0.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 12900

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Specifications

RNA51953AP#T0 Tech Specifications
Renesas Electronics America Inc - RNA51953AP#T0 technical specifications, attributes, parameters and parts with similar specifications to Renesas Electronics America Inc - RNA51953AP#T0

Product Attribute Attribute Value
Manufacturer Renesas Electronics Corporation
Series -
Product Attribute Attribute Value
Package Tape & Reel (TR)
Base Product Number RNA51953

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN OBSOLETE
HTSUS 0000.00.0000

Parts Introduction

Manufacturer Part Number

RNA51953AP#T0

Manufacturer

Renesas Electronics America

Introduction

The RNA51953AP#T0 is a power management integrated circuit (PMIC) supervisor that provides comprehensive monitoring and protection for electronic systems. It offers a wide range of features to ensure reliable and safe operation of various electronic devices.

Product Features and Performance

Monitors supply voltages with precision to detect under-voltage, over-voltage, and power-on reset conditions

Provides accurate reset and watchdog timer functions to ensure system reliability

Includes brown-out detection and power-on reset capabilities

Operates over a wide range of supply voltages from 2.7V to 5.5V

Available in a small, space-saving SSOP package

Product Advantages

Comprehensive power management and monitoring capabilities

Robust protection against voltage fluctuations and power failures

Reliable reset and watchdog timer functions for system stability

Wide operating voltage range for versatile applications

Compact packaging for efficient board design

Key Reasons to Choose This Product

Ensures reliable and safe operation of electronic systems

Helps prevent damage to sensitive components due to power issues

Simplifies system design and reduces the need for additional components

Offers a cost-effective solution for power management and monitoring

Quality and Safety Features

Rigorous quality control and testing procedures

Compliance with industry safety standards

Robust design to withstand harsh operating conditions

Compatibility

The RNA51953AP#T0 is designed to be compatible with a wide range of electronic devices and systems that require comprehensive power management and monitoring capabilities.

Application Areas

Automotive electronics

Industrial control systems

Consumer electronics

Telecommunications equipment

Medical devices

Product Lifecycle

The RNA51953AP#T0 is an obsolete product, and Renesas Electronics America no longer manufactures this specific model. However, there are equivalent or alternative models available from Renesas that provide similar functionality and features. Customers are advised to contact our website's sales team for more information on suitable replacement options.

Frequently Asked Questions(FAQ)

What is the primary function of the RNA51953AP#T0 supervisor IC in a power management system?
The RNA51953AP#T0 is a single-channel voltage supervisor designed to monitor the integrity of a primary power rail and assert a reset signal when the supply voltage falls below a precise threshold. It ensures system stability by holding the processor or microcontroller in reset during brownout conditions or power-up sequencing, preventing erratic behavior during voltage transients.
How does the RNA51953AP#T0 compare to integrated PMICs with built-in supervisory functions in terms of design flexibility?
Unlike monolithic PMICs that bundle regulation and supervision in a fixed configuration, the RNA51953AP#T0 provides a dedicated, standalone supervisory function that can be paired with any regulator topology. This allows engineers to decouple supervision logic from power conversion, enabling tailored threshold selection, independent layout optimization, and easier compliance with safety-critical power sequencing requirements without redesigning the entire power tree.
What are the implications of the RNA51953AP#T0’s 8DIP package for prototyping and low-volume production?
The 8DIP (dual in-line package) form factor of the RNA51953AP#T0 facilitates manual soldering, breadboard prototyping, and in-circuit testing—advantages not typically available with modern SMD-only supervisors. While less suitable for high-volume automated assembly, it remains practical for development, repair, or niche applications where through-hole mounting simplifies integration and debugging.
How does the reset threshold accuracy of the RNA51953AP#T0 influence margining strategies in low-voltage digital systems?
The RNA51953AP#T0 features a ±1.5% typical threshold tolerance, which allows designers to set tighter voltage margins without risking nuisance resets. For example, in a 3.3V system, this precision enables a reset assertion near 3.0V while still maintaining sufficient headroom above the minimum operating voltage of most 3.3V logic families, improving noise immunity and reducing reliance on additional filtering components.
Can the RNA51953AP#T0 be used in automotive applications despite not being AEC-Q100 qualified?
While the RNA51953AP#T0 is not AEC-Q100 certified, its industrial-grade temperature range and RoHS3 compliance may support non-safety-critical automotive subsystems such as infotainment or lighting control, provided the system-level design includes redundancy and derating. However, for engine control, braking, or ADAS functions, a qualified automotive supervisor should be selected instead.
How does the RNA51953AP#T0 handle power-on reset timing relative to processor startup requirements?
The RNA51953AP#T0 incorporates a built-in delay (typically 140 ms) after the monitored voltage exceeds the threshold before deasserting the reset output. This ensures that the supply rail has stabilized and provides sufficient time for downstream logic to initialize properly—critical for microcontrollers requiring stable clocks and core voltages before execution begins.
What design considerations arise from the RNA51953AP#T0’s open-drain reset output configuration?
The open-drain output of the RNA51953AP#T0 requires an external pull-up resistor to the logic voltage level, typically 10 kΩ to 100 kΩ. This configuration allows wired-AND connections with other supervisory devices or fault signals, enabling centralized system reset control. However, designers must ensure the pull-up voltage does not exceed the IC’s maximum rating and account for rise time delays in high-capacitance systems.
How does the RNA51953AP#T0’s quiescent current impact battery-powered designs?
With a typical quiescent current of 12 µA, the RNA51953AP#T0 imposes minimal load on battery supplies, making it suitable for always-on monitoring in low-power applications such as remote sensors or portable medical devices. Over a 10-year lifespan on a 2000 mAh battery, this current draw would consume less than 1% of total capacity, preserving energy for primary system functions.
What are the risks of using the RNA51953AP#T0 in systems with fast voltage ramp rates during power-up?
In systems where the supply voltage rises rapidly (e.g., >1 V/ms), the RNA51953AP#T0 may briefly assert a reset even if the final voltage is within tolerance, due to internal comparator response dynamics. To mitigate this, a small bypass capacitor (10 nF to 100 nF) placed close to the VCC pin can slow the effective ramp rate at the IC, ensuring reliable detection without false triggers.
How does the RNA51953AP#T0 perform under transient voltage conditions such as load dumps or inductive switching?
The RNA51953AP#T0 includes internal hysteresis (typically 50 mV) to prevent oscillation during slow or noisy voltage transitions near the threshold. However, it does not provide active clamping or surge protection. In environments with high-energy transients, external TVS diodes or RC filters should be used to condition the input voltage and protect the supervisor from overstress.
Is the RNA51953AP#T0 suitable for multi-rail systems requiring coordinated power sequencing?
While the RNA51953AP#T0 monitors only one voltage rail, it can be combined with additional supervisors or a sequencer IC to implement multi-rail control. Its open-drain output allows integration into a daisy-chained reset bus, where the last rail to stabilize releases the system reset—enabling simple sequencing logic without complex digital interfaces.
What layout practices are recommended to maintain the accuracy of the RNA51953AP#T0’s voltage monitoring function?
To preserve threshold accuracy, the VCC and GND pins of the RNA51953AP#T0 should be connected directly to the monitored supply rail with short, low-impedance traces. A 0.1 µF ceramic capacitor placed adjacent to the IC reduces high-frequency noise, while avoiding routing sensitive traces under the package minimizes coupling from switching nodes or clock lines.
How does the RNA51953AP#T0 compare to windowed voltage supervisors in safety-critical applications?
Unlike windowed supervisors that monitor both upper and lower voltage bounds, the RNA51953AP#T0 only detects undervoltage conditions. In safety-critical systems where overvoltage must also trigger a reset, a windowed device or additional overvoltage protection circuit is required. The RNA51953AP#T0 is best suited for applications where undervoltage is the dominant failure mode.
What is the significance of the RNA51953AP#T0’s MSL 3 rating for storage and handling?
The Moisture Sensitivity Level 3 (MSL 3) rating indicates that the RNA51953AP#T0 can be exposed to ambient conditions for up to 168 hours before requiring dry baking. This allows flexibility in assembly scheduling but necessitates proper moisture barrier packaging during storage to prevent popcorning during reflow, especially in high-humidity environments.
Can the RNA51953AP#T0 be used to monitor negative supply rails with minor modifications?
The RNA51953AP#T0 is designed for positive voltage monitoring and cannot directly supervise negative rails. To monitor a negative supply (e.g., -5V), a level-shifting circuit or a dedicated negative-voltage supervisor must be used. Attempting to bias the IC outside its specified operating range risks damage or incorrect threshold behavior.

Parts with Similar Specifications

The three parts on the right have similar specifications to Renesas Electronics America Inc RNA51953AP#T0

Product Attribute RNA51953AFP#H0 RNA51953BP#T0 RNA51957AFP#H0 RNA51953BFP#H0
Part Number RNA51953AFP#H0 RNA51953BP#T0 RNA51957AFP#H0 RNA51953BFP#H0
Manufacturer Renesas Electronics America Inc Renesas Electronics America Inc Renesas Electronics America Inc Renesas Electronics America Inc
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

RNA51953AP#T0 Datasheet PDF

Download RNA51953AP#T0 pdf datasheets and Renesas Electronics America Inc documentation for RNA51953AP#T0 - Renesas Electronics America Inc.

PCN Packaging
Label Change-All Devices 01/Dec/2022.pdf
PCN Obsolescence/ EOL
Mult Dev EOL 15/Dec/2020.pdf

Customer Reviews

Evaluation: 10 Articles

  • Embe***dMotion
    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • Nord***mbedded
    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Payment Support

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Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
Renesas Electronics America Inc

RNA51953AP#T0

Renesas Electronics America Inc
32D-RNA51953AP#T0

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