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Diodes Incorporated AZ7023RTR-E1
- Part No.:
- AZ7023RTR-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-243AA
- Datasheet:
-
AZ7023RTR-E1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:4,324
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Product details
Overview
AZ7023RTR-E1 from BCD Semiconductor Manufacturing Limited is a precision voltage detector IC with 2.3V 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, and operates down to 0.8V supply-enabling reliable CPU reset generation in embedded microcontrollers and battery-powered appliances.
For engineers reviewing the AZ7023RTR-E1 datasheet, AZ7023RTR-E1 pinout, AZ7023RTR-E1 application, or AZ7023RTR-E1 equivalent, key selection criteria include detect voltage accuracy (±0.15V), hysteresis (50mV typ), low quiescent current (30µA off / 300µA on), and operation across –40°C to +85°C industrial temperature range.
Technical Context
The AZ7023RTR-E1 integrates a precision bandgap reference and comparator to compare VCC against a fixed 2.3V detection threshold (VDET− = 2.3V, VDET+ = 2.35V). Its open-collector output requires an external pull-up and asserts active-low when VCC falls below VDET−, with 10µs propagation delay (tpHL) and 15µs release delay (tpLH).
Hysteresis of 50mV prevents chatter near threshold under noisy supply conditions. The device remains functional down to 0.8V VCC (minimum operating voltage), ensuring valid reset assertion even during deep brown-out events before full rail collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detect Voltage | 2.3V ±0.15V - sets precise power-fail trigger point for system reset initiation |
| Hysteresis Voltage | 50mV typical - eliminates false triggering due to supply ripple or noise | Circuit Current (Off) | 30µA typical at 5.25V - enables ultra-low standby power in battery-backed systems |
| Minimum Operating Voltage | 0.8V typical - guarantees output validity during severe brown-out before rail collapse |
| Output Type | Open-collector - allows flexible pull-up voltage selection and wired-OR reset bus configuration |
| Propagation Delay | tpHL = 10µs, tpLH = 15µs - ensures timely reset assertion and release aligned with CPU timing requirements |
| Temperature Range | –40°C to +85°C - supports industrial and consumer appliance deployment without derating |
Pinout & Package
SOT-89 package: 3-pin surface-mount, 1.5mm height, 4.6mm × 2.6mm footprint, thermal resistance θJC = 74°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Open-collector output | Active-low reset signal; sinks up to 16mA; requires external pull-up resistor |
| 2 (GND) | Ground reference | Return path for internal circuitry and output current; must be low-impedance |
| 3 (VCC) | Supply input | Monitored voltage rail; powers internal reference and comparator; valid from 0.8V to 18V |
Key Features
| Feature | Design Value |
|---|---|
| Precision threshold accuracy | 2.3V ±0.15V over temperature - eliminates need for external trimming in cost-sensitive reset circuits |
| Ultra-low off-state current | 30µA typical - extends battery life in always-on monitoring applications like smoke detectors |
| Built-in hysteresis | 50mV typical - removes requirement for external positive feedback components |
| Robust low-voltage operation | Valid output down to 0.8V VCC - ensures reset remains asserted through final stages of power collapse |
Applications
| Battery-Powered IoT Sensor Node | Smart Home Appliance Control Board |
|---|---|
Use Scenario: Monitors coin-cell or Li-ion supply in wireless sensor nodes to prevent corrupted memory writes during low-battery operation. IC Role / Device Role / Timing Role: Voltage detector generating active-low reset pulse to halt MCU execution until safe restart condition is met. Use Value: Prevents firmware corruption by asserting reset before VCC drops below MCU minimum operating voltage (e.g., 1.8V). | Use Scenario: Detects AC adapter failure or brown-out in washing machine control boards to initiate safe shutdown sequence. IC Role / Device Role / Timing Role: System supervisor providing clean reset signal to main MCU and display driver ICs. Use Value: Ensures motor drivers disable before logic misbehavior occurs, meeting IEC 60335 safety requirements. |
| Industrial PLC I/O Module | Medical Portable Monitor |
Use Scenario: Supervises 3.3V logic rail in programmable logic controller modules exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Precision voltage monitor enabling deterministic reset behavior across –40°C to +85°C. Use Value: Guarantees consistent reset timing regardless of temperature-induced VDET drift (±0.01%/°C coefficient). | Use Scenario: Monitors backup supercapacitor voltage in portable ECG monitors to maintain real-time data logging during main power interruption. IC Role / Device Role / Timing Role: Low-power voltage supervisor maintaining reset state while transitioning to backup power source. Use Value: Enables uninterrupted waveform capture by holding MCU in reset until backup rail stabilizes above 2.3V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803DBZT | 2.32V threshold, 350nA max IQ, SOT-23-3 package | Lower supply current but higher cost; lacks hysteresis specification clarity | Preferred where nanoamp standby dominates design priority over cost |
| MAX809SEUR+T | 2.3V threshold, 15µA IQ, SC-70-3 package, ±1.5% accuracy | Higher accuracy tolerance (±1.5% vs ±6.5%), smaller footprint, no hysteresis spec provided | Selected when tighter threshold tolerance required and board space is constrained |
Compared with TLV803DBZT and MAX809SEUR+T, AZ7023RTR-E1 offers best balance of cost, hysteresis guarantee (50mV), and industrial temperature support-making it optimal for high-volume consumer and industrial reset applications where robustness under noise and wide temperature operation are critical.
Availability
AZ7023RTR-E1 is available at Aetrix Electronics and suitable for battery-powered IoT sensor nodes, smart home appliance control boards, and industrial PLC I/O modules requiring stable component supply with RoHS-compliant lead-free packaging.
Supply support for AZ7023RTR-E1 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 power IC designer specializing in high-reliability, cost-optimized semiconductor solutions for consumer, industrial, and automotive markets.
The AZ70XX series belongs to BCD's precision voltage supervisor product line, engineered specifically for accurate, low-power supply monitoring and reset generation in resource-constrained embedded systems.
FAQ
What is the recommended pull-up resistor value for the open-collector output?
A 10kΩ pull-up to the target logic rail (e.g., 3.3V or 5V) is recommended. This ensures sufficient rise time (<1µs with 100pF load) while limiting current to <0.33mA during active-low assertion, preserving low-power operation and compatibility with standard CMOS inputs.
Does AZ7023RTR-E1 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 stability-especially in switching power supply environments.
Can AZ7023RTR-E1 monitor negative voltages or dual supplies?
No. AZ7023RTR-E1 is designed exclusively for single positive supply monitoring (0.8V to 18V). It does not support negative rail supervision, split-rail configurations, or inverted logic outputs. For dual-supply monitoring, two separate AZ7023RTR-E1 devices are required-one per rail.
How does hysteresis improve system reliability in noisy environments?
Hysteresis creates a 50mV voltage window (2.3V detect → 2.35V release) preventing rapid output toggling when VCC oscillates near threshold due to ripple or transient noise-ensuring clean, glitch-free reset pulses essential for deterministic MCU boot sequences and data integrity.
AZ7023RTR-E1 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:
- 2.3V
- 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
AZ7023RTR-E1 FAQ
1.How can I place an order for AZ7023RTR-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ7023RTR-E1 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 AZ7023RTR-E1 reliable?
The price and inventory of AZ7023RTR-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ7023RTR-E1 is usually 5 days.
3.What payment methods are accepted for AZ7023RTR-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ7023RTR-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ7023RTR-E1?
AZ7023RTR-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ7023RTR-E1 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 AZ7023RTR-E1?
For technical support, including AZ7023RTR-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ7023RTR-E1 requirements.
6.How does Aetrix verify that AZ7023RTR-E1 is sourced from the original manufacturer or authorized distributors?
All AZ7023RTR-E1 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 AZ7023RTR-E1 meets industry standards.
7.What is the process for return or replacement of AZ7023RTR-E1?
All AZ7023RTR-E1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ7023RTR-E1, 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 AZ7023RTR-E1 part is unused and in its original packaging.
Return procedure for AZ7023RTR-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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