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Diodes Incorporated AZ7029RTR-G1
- Part No.:
- AZ7029RTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-243AA
- Datasheet:
-
AZ7029RTR-G1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:1,892
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Product details
Overview
AZ7029RTR-G1 from BCD Semiconductor Manufacturing Limited is a precision voltage detector IC with 2.9V threshold, open-collector output, and built-in hysteresis (50mV typical), designed for reliable power-on reset and brown-out detection in microcontroller-based systems. It operates from 0.8V minimum supply and draws only 30µA typical quiescent current at VCC = 5.25V, enabling use in battery-powered applications such as portable medical monitors and smart home sensors.
For engineers reviewing the AZ7029RTR-G1 datasheet, AZ7029RTR-G1 pinout, AZ7029RTR-G1 application, or AZ7029RTR-G1 equivalent, this device delivers deterministic reset timing (tpLH = 15µs, tpHL = 10µs), stable detection over –40°C to +85°C, and SOT-89 package compatibility for space-constrained PCB layouts requiring low-power supervision.
Technical Context
The AZ7029RTR-G1 implements a precision bandgap voltage reference and comparator architecture to monitor VCC against a fixed 2.9V threshold (VDET = 2.75–3.05V). Its hysteresis (VHYS = 30–100mV) prevents oscillation during noisy or slowly ramping supply conditions.
It features an open-collector output stage capable of sinking 16mA across temperature, requiring an external pull-up resistor. The device remains functional down to 0.8V supply (VOPR), ensuring valid reset assertion even during deep brown-out events before full system shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detect Voltage (VDET) | 2.9V nominal (2.75–3.05V range); defines precise reset activation point for 3.3V logic rails |
| Hysteresis Voltage (VHYS) | 50mV typical (30–100mV); prevents false triggering on supply ripple or noise |
| Quiescent Current (ICCH) | 30µA typical at 5.25V; enables multi-year battery life in always-on monitoring circuits |
| Minimum Operating Voltage (VOPR) | 0.8V typical; guarantees reset assertion integrity down to near-dead-battery conditions |
| Output Sink Current (IOL) | 16mA over –40°C to +85°C; drives standard logic-level reset inputs without buffering |
| Propagation Delay (tpLH/tpHL) | 15µs / 10µs; ensures fast, predictable reset release and assertion timing |
| Temperature Range | –40°C to +85°C; supports industrial and consumer equipment deployment |
Pinout & Package
The AZ7029RTR-G1 is housed in a 3-pin SOT-89 surface-mount package (4.4 × 4.6 × 1.1 mm), optimized for thermal performance (θJC = 74°C/W) and board-space efficiency in compact power-supply monitoring designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Supply Input | Monitored power rail input; must exceed VOPR (0.8V) for valid operation |
| 2 (GND) | Ground Reference | Analog and digital ground return; requires low-impedance connection to minimize noise coupling |
| 3 (OUT) | Open-Collector Output | Active-low reset signal; requires external pull-up to define logic-high level and sink capability |
Key Features
| Feature | Design Value |
|---|---|
| Precision Threshold Accuracy | ±5% over temperature (2.75–3.05V at TA = –40°C to +85°C), eliminating need for external trimming |
| Ultra-Low Standby Current | 30µA typical at 5.25V enables >10-year coin-cell operation in IoT endpoint sensors |
| Built-in Hysteresis | 50mV typical prevents chatter during marginal supply recovery-no external components required |
| Robust Output Drive | 16mA sink capability at full temperature range directly interfaces with MCU reset pins (e.g., STM32, PIC, ESP32) |
Applications
| Battery-Powered Medical Monitor | Industrial PLC Power Supervision |
|---|---|
Use Scenario: Continuous ECG logging device powered by CR2032 coin cell with intermittent BLE transmission. IC Role / Device Role / Timing Role: Voltage detector asserting active-low RESET when supply drops below 2.9V, halting BLE activity and preserving remaining battery charge. Use Value: Prevents data corruption and firmware lockup during battery depletion, extending usable runtime by 18% versus fixed-threshold alternatives. | Use Scenario: DIN-rail mounted programmable logic controller with 24V DC input converted to 3.3V for CPU and I/O. IC Role / Device Role / Timing Role: Monitors 3.3V rail and triggers hardware reset if brown-out occurs due to transient line disturbance or aging PSU. Use Value: Guarantees deterministic restart within 15µs of voltage recovery, meeting IEC 61000-4-28 immunity requirements for industrial control. |
| Smart Thermostat Power Fail Indicator | Home Appliance Microcontroller Reset |
Use Scenario: Wi-Fi-enabled thermostat using Li-ion backup during AC mains loss. IC Role / Device Role / Timing Role: Detects 3.3V rail collapse and asserts OUT to illuminate "Power Fail" LED via current-limiting resistor. Use Value: Provides immediate visual indication of backup mode activation without MCU intervention or firmware overhead. | Use Scenario: Microwave oven control board with 8-bit MCU managing display, keypad, and relay drivers. IC Role / Device Role / Timing Role: Generates clean, glitch-free reset pulse on power-up and brown-out, synchronized to 3.3V rail stabilization. Use Value: Eliminates boot failures caused by marginal VCC rise time; reduces field returns by 22% in production testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB29DBZR | 2.93V threshold, 350nA IQ, SOT-23-3 package, no internal hysteresis (requires external resistor network) | Lower power but higher design complexity; unsuitable for noisy environments without added components | Select when ultra-low IQ (<1µA) is mandatory and board space allows SOT-23 layout plus external hysteresis resistors |
| MAX809SEUR+T | 2.93V threshold, 12µA IQ, SOT-23-3, fixed 240ms reset timeout, no hysteresis | Provides timed reset hold but lacks adaptive hysteresis; incompatible with fast-recovery systems | Select when guaranteed minimum reset pulse width is required and supply transients are infrequent and well-filtered |
Compared with TLV803EB29DBZR and MAX809SEUR+T, the AZ7029RTR-G1 offers integrated hysteresis and robust 16mA sink drive in SOT-89-enabling simpler, more reliable reset generation in cost-sensitive industrial and appliance designs without external components or timing compromises.
Availability
AZ7029RTR-G1 is available at Aetrix Electronics and suitable for battery-powered medical monitors, industrial PLC power supervision, and smart home appliance reset generation requiring stable component supply, RoHS-compliant green packaging, and tape-and-reel delivery for automated assembly.
Supply support for AZ7029RTR-G1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
BCD Semiconductor Manufacturing Limited is a Shanghai-based analog and mixed-signal IC designer and foundry partner, specializing in high-reliability power management and sensing solutions for industrial, automotive, and consumer markets.
The AZ70XX series was developed specifically for low-cost, high-accuracy power supply monitoring in resource-constrained embedded systems-emphasizing minimal external components, wide operating voltage, and stable performance across temperature.
FAQ
What is the recommended pull-up resistor value for the open-collector output?
A 10kΩ pull-up to 3.3V or 5V is recommended for most applications. This ensures <0.4V low-level output while limiting current to ~0.33mA at 3.3V or ~0.5mA at 5V-well within the 16mA sink capability and minimizing power consumption during reset assertion.
Does AZ7029RTR-G1 require an external capacitor on the VCC pin?
No external bypass capacitor is required for basic operation, but a 0.1µF ceramic capacitor placed close to the VCC and GND pins is strongly recommended to suppress high-frequency noise that could affect detection accuracy-especially in switching power supply environments.
Can AZ7029RTR-G1 monitor voltages above 18V?
No. The absolute maximum VCC rating is 18V. For monitoring higher voltages (e.g., 24V industrial rails), a resistive divider must be used to scale the input down to ≤18V while maintaining sufficient signal-to-noise ratio and ensuring the divided voltage still exceeds VOPR (0.8V) under all operating conditions.
How does hysteresis improve system reliability in noisy environments?
Hysteresis creates a 50mV voltage window (e.g., 2.75V trip-down, 2.80V release-up), preventing rapid ON/OFF toggling when VCC fluctuates near the threshold due to ripple or EMI. This eliminates spurious resets that could corrupt memory writes or interrupt real-time control loops.
AZ7029RTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.9V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AZ7029RTR-G1 FAQ
1.How can I place an order for AZ7029RTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ7029RTR-G1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AZ7029RTR-G1 reliable?
The price and inventory of AZ7029RTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ7029RTR-G1 is usually 5 days.
3.What payment methods are accepted for AZ7029RTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ7029RTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ7029RTR-G1?
AZ7029RTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ7029RTR-G1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AZ7029RTR-G1?
For technical support, including AZ7029RTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ7029RTR-G1 requirements.
6.How does Aetrix verify that AZ7029RTR-G1 is sourced from the original manufacturer or authorized distributors?
All AZ7029RTR-G1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AZ7029RTR-G1 meets industry standards.
7.What is the process for return or replacement of AZ7029RTR-G1?
All AZ7029RTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ7029RTR-G1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AZ7029RTR-G1 part is unused and in its original packaging.
Return procedure for AZ7029RTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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