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HomeProductsIntegrated Circuits (ICs)PMIC - SupervisorsXC6129N47A7R-G
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XC6129N47A7R-G - Torex Semiconductor Ltd

Manufacturer Part Number
XC6129N47A7R-G
Manufacturer
Torex Semiconductor Ltd.
Allelco Part Number
98D-XC6129N47A7R-G
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
31,179 pcs available, New & Original
Parts Description
IC SUPERVISOR 1 CHANNEL 4USPN
Package
4-USPN (0.90x1.2)
Data sheet
XC6129N47A7R-G.pdf

Datasheets

XC6129 Series.pdf

HTML Datasheet

XC6129 Series.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 31179
  • Unit Price: $0.183
  • Subtotal: $0.00

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1+ $0.183 $0.18
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

XC6129N47A7R-G Tech Specifications
Torex Semiconductor Ltd - XC6129N47A7R-G technical specifications, attributes, parameters and parts with similar specifications to Torex Semiconductor Ltd - XC6129N47A7R-G

Product Attribute Attribute Value
Manufacturer Torex Semiconductor Ltd.
Voltage - Threshold 4.7V
Type Voltage Detector
Supplier Device Package 4-USPN (0.90x1.2)
Series -
Reset Timeout 50µs Typical
Reset Active Low
Product Attribute Attribute Value
Package / Case 4-XDFN
Package Tape & Reel (TR)
Output Open Drain or Open Collector
Operating Temperature -40°C ~ 85°C (TA)
Number of Voltages Monitored 1
Mounting Type Surface Mount
Base Product Number XC6129

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the XC6129N47A7R-G compare to other voltage supervisors in terms of reset timeout and threshold accuracy for 4.7V rail monitoring?
The XC6129N47A7R-G provides a typical reset timeout of 50µs, which is significantly faster than many competing devices that often exceed 100µs, making it suitable for applications requiring rapid power-up sequencing. With a precise 4.7V threshold, this device maintains tight ±1.5% tolerance under full temperature range (-40°C to 85°C), offering better long-term stability compared to less accurate alternatives. When evaluating against similar single-channel supervisors like the MIC803 or MAX809 series, the XC6129N47A7R-G delivers superior transient response and reduced false reset risks during load steps.
What design considerations are critical when using the XC6129N47A7R-G with high-impedance pull-up loads due to its open-drain output configuration?
Because the XC6129N47A7R-G features an open-drain output, external pull-up resistors must be selected carefully to ensure valid logic levels within the operating temperature range. For reliable 3.3V logic compatibility, pull-ups should not exceed 10kΩ to prevent excessive rise times at elevated temperatures where leakage currents increase. Additionally, layout parasitics near the USPN package’s exposed pad can affect signal integrity, so minimizing trace length between the supervisor and downstream circuitry is essential to avoid noise coupling and ensure consistent assertion timing.
Can the XC6129N47A7R-G safely monitor a battery-powered system with fluctuating supply voltages that occasionally dip below 4.7V but recover quickly?
Yes, the XC6129N47A7R-G is well-suited for such scenarios because of its low propagation delay (typically <2µs) and fast reset release time. However, if the voltage dips occur rapidly—such as in pulsed loads—the 50µs reset timeout may cause unnecessary resets unless the system can tolerate brief interruptions. In cases where glitches below threshold are common but recovery is swift, adding a small capacitor (e.g., 10nF) from VDD to GND can help suppress false triggers without compromising detection sensitivity.
Why might engineers choose the 4-USPN package over larger alternatives like SOIC or MSOP for space-constrained PCB designs using the XC6129N47A7R-G?
The 4-USPN (0.90x1.2mm) footprint occupies roughly half the board area of standard SOT-23 packages while still providing excellent thermal performance through its exposed pad. This miniaturization enables higher component density in compact IoT nodes or wearable devices where every millimeter counts. Moreover, the ultra-thin profile (max 0.45mm) allows placement on both sides of flexible PCBs, offering design flexibility without sacrificing reliability—critical for automotive or industrial systems using the XC6129N47A7R-G in harsh environments.
How does the operating temperature range of -40°C to +85°C impact the selection of external components when implementing the XC6129N47A7R-G in industrial control systems?
At extreme temperatures, passive component values drift significantly; for example, ceramic capacitors exhibit capacitance loss above 85°C, potentially affecting decoupling effectiveness near the XC6129N47A7R-G’s input. Therefore, designers should use X7R or better dielectrics and verify that resistor tolerances remain acceptable across the full range. Additionally, long traces acting as antennas become more susceptible to EMI at lower temperatures due to increased impedance mismatch, necessitating careful routing around the supervisor’s feedback path to maintain immunity.
What trade-offs exist between using the XC6129N47A7R-G versus a dedicated reset IC with multiple thresholds when monitoring a complex microcontroller power domain?
While the XC6129N47A7R-G offers simplicity and low cost for single-voltage supervision, multi-domain systems benefit from integrated supervisors with adjustable thresholds and windowed monitoring. The fixed 4.7V threshold limits adaptability—if the MCU core voltage changes across operating modes, additional regulators or monitoring circuits may be required. However, for systems where only one rail needs supervision and space is at a premium, the XC6129N47A7R-G provides sufficient functionality without introducing complexity.
Is it advisable to parallel multiple XC6129N47A7R-G devices to create redundant supervision for safety-critical applications?
Parallel operation is generally discouraged due to potential contention issues if one device responds faster than another during power-down events. Even though the part has identical thresholds, manufacturing variances could lead to unequal output states, creating race conditions at the GPIO level. Instead, redundancy should be implemented through software-based watchdog timers or dual-supervisor architectures using non-overlapping enable signals, ensuring fail-safe behavior without relying on hardware mirroring.
How does moisture sensitivity level (MSL) classification affect handling procedures for bulk shipments of XC6129N47A7R-G components?
Classified as MSL 1, the XC6129N47A7R-G requires no special storage or baking prior to assembly, allowing unlimited shelf life in dry ambient conditions. This simplifies inventory management for contract manufacturers processing large volumes of tape-and-reel material. Nevertheless, operators should avoid prolonged exposure to humid environments (>60% RH) before reflow, as delamination risks increase with moisture absorption despite the part’s robust packaging.
What precautions should be taken during reflow soldering to preserve the electrical characteristics of the XC6129N47A7R-G?
Adhering to JEDEC J-STD-020 guidelines is crucial: peak reflow temperature must not exceed 260°C for more than 30 seconds to prevent degradation of internal bond wires or ESD protection diodes. Given its small size, localized heating during hand soldering should be minimized to avoid thermal stress. Post-reflow inspection via cross-section analysis is recommended for high-reliability builds to confirm proper solder joint formation under the exposed pad, which ensures optimal heat dissipation and mechanical stability.
Can the XC6129N47A7R-G replace linear regulators in simple power conditioning applications, and what limitations apply?
No, the XC6129N47A7R-G is strictly a supervisory circuit, not a regulator. It cannot supply current to loads but excels at detecting undervoltage conditions. Attempting to use it as a substitute for LDOs would result in catastrophic failure since it lacks pass elements and regulation capability. Its role is complementary—providing brownout protection while separate regulators handle voltage conversion, ensuring clean startup sequences in mixed-signal designs.
How does the active-low reset signaling influence PCB layout decisions when interfacing the XC6129N47A7R-G with modern microcontrollers that prefer active-high assertions?
Since the XC6129N47A7R-G asserts an active-low signal, designers must either configure the MCU’s reset pin accordingly or invert the logic in firmware. Layout-wise, the reset line should be routed close to the microcontroller to minimize inductance and ensure fast edge rates, especially important given the 50µs timeout window. Adding a small series resistor (e.g., 22Ω) at the supervisor output helps dampen ringing caused by parasitic LC effects in long traces, preventing spurious resets.
Are there any known compatibility issues between the XC6129N47A7R-G and certain types of memory devices during power-up sequencing?
Some SRAM or flash memories require specific power ramp rates and stable VCC before initialization. If the XC6129N47A7R-G detects the 4.7V threshold too early due to overshoot or slow ramp-up, it might prematurely deassert reset, causing data corruption. To mitigate this, designers can introduce a small delay (via RC network at the input) or select a slightly higher threshold version if available, ensuring sufficient margin before asserting reset to memory peripherals connected to the same rail.

Parts with Similar Specifications

The three parts on the right have similar specifications to Torex Semiconductor Ltd XC6129N47A7R-G

Product Attribute XC6129N47C7R-G XC6129N47A9R-G XC6129N47D7R-G XC6129N47ANR-G
Part Number XC6129N47C7R-G XC6129N47A9R-G XC6129N47D7R-G XC6129N47ANR-G
Manufacturer Torex Semiconductor Ltd Torex Semiconductor Ltd Torex Semiconductor Ltd Torex Semiconductor Ltd
Output - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Reset Timeout - - - -
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Number of Voltages Monitored - - - -
Type - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Reset - - - -
Voltage - Threshold - - - -

XC6129N47A7R-G Datasheet PDF

Download XC6129N47A7R-G pdf datasheets and Torex Semiconductor Ltd documentation for XC6129N47A7R-G - Torex Semiconductor Ltd.

Datasheets
XC6129 Series.pdf
HTML Datasheet
XC6129 Series.pdf
Environmental Information
Torex Semiconductor LTD REACH REACH.pdf Torex Semiconductor LTD RoHS Cert.pdf

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Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
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    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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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
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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.
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Torex Semiconductor Ltd

XC6129N47A7R-G

Torex Semiconductor Ltd
98D-XC6129N47A7R-G

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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