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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) - Supervisors > XC6129N17G9R-G
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XC6129N17G9R-G

In Stock 356173 pcs Reference Price(In US Dollars)
1+
$0.1847
200+
$0.0715
500+
$0.069
1000+
$0.0677
Manufacturer Part Number:
XC6129N17G9R-G
Manufacturer / Brand
Torex Semiconductor Ltd
Part of Description:
IC SUPERVISOR 1 CHAN USPQ-4B05
Datasheets:
XC6129N17G9R-G(1).pdfXC6129N17G9R-G(2).pdfXC6129N17G9R-G(3).pdfXC6129N17G9R-G(4).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 356173 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number XC6129N17G9R-G
Manufacturer / Brand Torex Semiconductor Ltd
Stock Quantity 356173 pcs Stock
Category Integrated Circuits (ICs) > Power Management (PMIC) - Supervisors
Description IC SUPERVISOR 1 CHAN USPQ-4B05
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Threshold 1.7V
Type Voltage Detector
Supplier Device Package USPQ-4B05
Series -
Reset Timeout 50µs Typical
Reset Active High
Package / Case 4-XDFN Exposed Pad
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

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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Frequently Asked Questions

Can the XC6129N17G9R-G be used to monitor a 1.8V power rail in a battery-powered IoT device, and what are the key design considerations for ensuring reliable reset behavior during brownout conditions?
Yes, the XC6129N17G9R-G is suitable for monitoring a 1.8V rail due to its 1.7V threshold, providing a 100mV guard band. However, designers must account for supply voltage ramp rates and noise; the 50µs typical reset timeout may not fully debounce slow voltage decays, so external RC filtering or hysteresis may be needed to prevent spurious resets during brownouts.
What happens if the monitored voltage on the XC6129N17G9R-G drops below 1.7V but recovers within the 50µs timeout period—will the reset signal still assert?
The XC6129N17G9R-G triggers a reset only if the voltage remains below the 1.7V threshold for longer than the 50µs typical timeout. Transient dips shorter than this duration will not generate a reset pulse, which may be acceptable in noise-tolerant systems but could pose risks in safety-critical applications requiring immediate response.
Is it safe to replace a MAX809T (1.7V threshold, push-pull output) with the XC6129N17G9R-G in an existing design without modifying the PCB or firmware?
No, direct replacement is not recommended. The XC6129N17G9R-G has an open-drain output requiring a pull-up resistor, whereas the MAX809T uses a push-pull structure. Additionally, the XC6129N17G9R-G provides an active-high reset, while the MAX809T outputs active-low—requiring logic inversion in firmware or hardware.
Can the XC6129N17G9R-G operate reliably in an industrial environment with ambient temperatures reaching 85°C, and are there any long-term reliability concerns related to its MSL rating?
Yes, the XC6129N17G9R-G is rated for operation from -40°C to 85°C, making it suitable for industrial use. With an MSL of 1 (unlimited floor life), there are no moisture-related reliability risks during storage or assembly, reducing handling complexity in high-volume production.
What pull-up resistor value should be used with the open-drain output of the XC6129N17G9R-G when interfacing with a 3.3V microcontroller input, and how does this affect reset signal rise time?
A 10kΩ pull-up resistor is typical for 3.3V systems, providing a balance between power consumption and rise time. With the XC6129N17G9R-G’s output capacitance and PCB parasitics, this yields a rise time of approximately 1–2µs, which is sufficient for most MCU reset inputs. Lower values (e.g., 4.7kΩ) improve edge speed but increase quiescent current.
Can the XC6129N17G9R-G be used in a multi-rail system where one supervisor must monitor a 1.7V core voltage while another monitors a 3.3V I/O rail, and what synchronization issues might arise?
Yes, but the XC6129N17G9R-G only monitors a single rail. In multi-rail systems, staggered power-up sequences may cause the 1.7V rail to drop before the 3.3V rail during shutdown, leading to undefined MCU states. Designers should implement a power-good cascade or use a multi-channel supervisor to ensure coordinated reset timing.
Is the XC6129N17G9R-G a suitable drop-in replacement for the Torex XC6130N17G9R-G in a legacy design, and what functional differences must be evaluated?
The XC6129N17G9R-G and XC6130N17G9R-G share the same threshold and package, but the XC6130 series includes built-in hysteresis, while the XC6129 does not. In noisy environments, the lack of hysteresis in the XC6129N17G9R-G may cause output oscillation near the threshold, requiring external noise filtering for stable operation.
How does the absence of built-in hysteresis in the XC6129N17G9R-G affect its performance in automotive applications with high electrical noise on the power rail?
Without internal hysteresis, the XC6129N17G9R-G is more susceptible to false triggering from voltage ripple or transient noise near the 1.7V threshold. In automotive environments, this necessitates careful PCB layout, local decoupling, and possibly an external RC filter to ensure the input signal remains stable during cranking or load-dump events.
Can the XC6129N17G9R-G be powered from the same 1.8V rail it is monitoring, and what is the minimum operating voltage required for correct reset assertion?
The XC6129N17G9R-G can be powered from the monitored 1.8V rail, but correct operation requires the supply voltage to remain above the minimum specified operating voltage (typically ~1.0V). However, once the rail drops below 1.7V, the device will assert reset. Ensure the downstream logic remains in a known state during this transition.
What layout considerations are critical when placing the XC6129N17G9R-G in a high-density PCB with switching regulators nearby to avoid false resets?
Place the XC6129N17G9R-G as close as possible to the monitored IC’s power pin, with a low-ESR ceramic capacitor (e.g., 100nF) directly at its input. Route the sense trace away from switching nodes and inductors to minimize coupling. The exposed pad must be properly grounded to reduce thermal and electrical noise susceptibility.

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XC6129N17G9R-G

Torex Semiconductor Ltd

IC SUPERVISOR 1 CHAN USPQ-4B05

In Stock: 356173

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