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Diodes Incorporated AZ7025RTR-G1
- Part No.:
- AZ7025RTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-243AA
- Datasheet:
-
AZ7025RTR-G1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:3,712
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Product details
Overview
AZ7025RTR-G1 from BCD Semiconductor Manufacturing Limited is a precision voltage detector IC with 2.5V detection threshold, open-collector output, and SOT-89 package. It monitors supply rails in low-power systems, delivers reset signals during brown-out or power-up events, and features 50mV typical hysteresis and 0.8V minimum operating voltage for reliable operation down to near-dead-battery conditions - used in CPU reset generation and battery backup control circuits.
For engineers reviewing the AZ7025RTR-G1 datasheet, AZ7025RTR-G1 pinout, AZ7025RTR-G1 application, or AZ7025RTR-G1 equivalent, this device is selected for its low quiescent current (30µA typical at VCC=5.25V), stable temperature coefficient (±0.01%/°C), and guaranteed reset assertion below 2.5V with hysteresis - critical for deterministic system initialization in embedded microcontrollers and portable electronics.
Technical Context
The AZ7025RTR-G1 integrates a precision bandgap voltage reference and comparator to compare VCC against a fixed 2.5V threshold (2.35V min / 2.65V max). Its open-collector output requires an external pull-up and asserts low when VCC falls below VDET−, releasing high only after VCC rises above VDET+ (2.55V typical), ensuring noise immunity via 50mV hysteresis.
It operates across −40°C to +85°C with supply voltage range up to 20V, draws only 30µA in inactive state (ICCH), and sinks up to 16mA output current over full temperature range. The internal circuit remains functional down to 0.8V VCC, enabling valid reset signaling even during deep discharge or soft-start sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detect Voltage | 2.5V nominal (2.35–2.65V range); defines precise supply rail threshold for reset assertion |
| Hysteresis Voltage | 50mV typical; prevents oscillation during noisy or slowly ramping supply transitions |
| Output Type | Open-collector; enables wired-OR logic, flexible pull-up voltage selection, and interface with diverse logic families |
| Quiescent Current | 30µA typical at 5.25V; minimizes standby power in battery-powered systems |
| Min Operating Voltage | 0.8V typical; guarantees valid output behavior during ultra-low-voltage brown-out recovery |
| Delay Times | tpHL = 10µs, tpLH = 15µs; ensures timely reset deassertion after power stabilization |
| Temp Range | −40°C to +85°C; supports industrial-grade operation without derating |
Pinout & Package
SOT-89 package: 3-pin surface-mount, thermally enhanced plastic case with exposed tab (pin 3 connected to GND per datasheet Figure 2 and mechanical drawing).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Open-collector output | Sinks current when active low; requires external pull-up for logic-high state |
| 2 (GND) | Ground reference | Return path for internal circuitry and output sink current; connects to PCB ground plane |
| 3 (VCC) | Supply input | Monitored voltage rail; powers internal reference and comparator; accepts up to 20V |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage detection | 2.5V threshold with ±0.1V tolerance and ±0.01%/°C tempco - enables accurate supply monitoring without external calibration |
| Ultra-low standby current | 30µA typical ICCH at 5.25V - extends battery life in always-on monitoring applications |
| Noise-immune hysteresis | 50mV typical VHYS - eliminates false resets caused by ripple or transient noise on VCC |
| Robust low-voltage operation | Valid output down to 0.8V VCC - ensures reset integrity during deep brown-out recovery |
Applications
| Low Battery Voltage Detector | Processor Reset Generator |
|---|---|
|
Use Scenario: Monitoring single-cell Li-ion or alkaline battery packs in portable medical devices. IC Role / Device Role / Timing Role: Voltage threshold comparator that asserts reset when cell voltage drops below 2.5V, preventing data corruption or unsafe operation. Use Value: Enables graceful shutdown before battery depletion, using only 30µA quiescent current to preserve remaining capacity. |
Use Scenario: Providing clean power-on reset to ARM Cortex-M microcontrollers in industrial PLC modules. IC Role / Device Role / Timing Role: Generates synchronized active-low reset pulse after VCC exceeds 2.55V (VDET+), with 15µs delay to ensure stable supply. Use Value: Guarantees deterministic MCU initialization by eliminating marginal reset timing due to supply ramp rate variation. |
| Power Fail Indicator | Battery Backup Control |
|
Use Scenario: Detecting AC/DC adapter failure in smart home gateways with dual-supply architecture. IC Role / Device Role / Timing Role: Triggers failover to backup battery by pulling OUT low when main 3.3V rail dips below 2.5V. Use Value: Provides 10µs response to supply collapse, enabling seamless switchover before system brown-out. |
Use Scenario: Managing RTC backup power switching in set-top boxes during main power loss. IC Role / Device Role / Timing Role: Controls MOSFET gate via open-collector output to disconnect main supply and enable coin-cell backup when VCC < 2.5V. Use Value: Leverages 0.8V minimum operating voltage to maintain control signal integrity even as main rail collapses to near-zero. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803DBZT | 2.5V threshold, SOT-23-3, push-pull output, 1.8–6V supply range | Requires no external pull-up; lower max supply voltage (6V vs. 20V) | Prefer where board space is constrained and supply stays ≤6V; not suitable for 12V/20V monitoring |
| MAX809SEUR+T | 2.5V threshold, SOT-23-3, push-pull output, −40°C to +125°C rating | Wider temperature range but higher quiescent current (12µA min, typically >20µA) | Choose for automotive under-hood use; AZ7025RTR-G1 preferred for ultra-low-power industrial battery apps |
Compared with TLV803DBZT and MAX809SEUR+T, the AZ7025RTR-G1 offers superior high-voltage tolerance (20V), lowest quiescent current in inactive state (30µA typ), and SOT-89 thermal performance - making it optimal for cost-sensitive, wide-input industrial systems requiring long battery life and robust brown-out response.
Availability
AZ7025RTR-G1 is available at Aetrix Electronics and suitable for CPU reset generation, low-battery detection, power-fail indication, and battery backup control requiring stable component supply across industrial temperature ranges and multi-year production cycles.
Supply support for AZ7025RTR-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 and consumer markets.
The AZ70XX series was developed specifically for precision supply monitoring in resource-constrained embedded systems - emphasizing low power, wide supply range, and noise-immune reset generation without external components.
FAQ
What is the function of the open-collector output in AZ7025RTR-G1?
The open-collector output allows the AZ7025RTR-G1 to sink current when active low, requiring an external pull-up resistor to define the high-state voltage level. This configuration supports wired-OR logic, interface with multiple voltage domains (e.g., 3.3V MCU with 5V pull-up), and simplifies integration into existing reset networks without level-shifting components.
Can AZ7025RTR-G1 operate with a 12V supply rail?
Yes - the AZ7025RTR-G1 supports supply voltages from 0.8V up to 20V per Absolute Maximum Ratings. At 12V, it maintains full functionality including 2.5V detection accuracy, 50mV hysteresis, and 16mA output sink capability across −40°C to +85°C, making it suitable for 12V automotive auxiliary systems and industrial power supplies.
How does hysteresis improve system reliability?
Hysteresis (50mV typical) creates separate detect (2.5V) and release (2.55V) thresholds, preventing rapid output toggling when VCC fluctuates near the trip point due to noise or ripple. This eliminates false resets during marginal supply conditions and ensures clean, single-event reset assertion - critical for deterministic microcontroller startup.
Is AZ7025RTR-G1 RoHS and green-compliant?
Yes - the "G1" suffix denotes BCD Semiconductor's green packaging (halogen-free, lead-free, RoHS-compliant). The device meets JEDEC J-STD-020 moisture sensitivity level 1 and is qualified per AEC-Q200 stress test requirements for passive components, supporting industrial and extended-temperature applications.
AZ7025RTR-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:
- 2.5V
- 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
AZ7025RTR-G1 FAQ
1.How can I place an order for AZ7025RTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ7025RTR-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 AZ7025RTR-G1 reliable?
The price and inventory of AZ7025RTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ7025RTR-G1 is usually 5 days.
3.What payment methods are accepted for AZ7025RTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ7025RTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ7025RTR-G1?
AZ7025RTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ7025RTR-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 AZ7025RTR-G1?
For technical support, including AZ7025RTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ7025RTR-G1 requirements.
6.How does Aetrix verify that AZ7025RTR-G1 is sourced from the original manufacturer or authorized distributors?
All AZ7025RTR-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 AZ7025RTR-G1 meets industry standards.
7.What is the process for return or replacement of AZ7025RTR-G1?
All AZ7025RTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ7025RTR-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 AZ7025RTR-G1 part is unused and in its original packaging.
Return procedure for AZ7025RTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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