My Inquiry
My Account
Diodes Incorporated AZ7029ZTR-E1
- Part No.:
- AZ7029ZTR-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- Supervisors
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
AZ7029ZTR-E1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL TO92
- Quantity:
- Payment:
- Shipping:
Inventory:2,235
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AZ7029ZTR-E1 from BCD Semiconductor Manufacturing Limited is a precision under-voltage detector IC with fixed 2.9V detection threshold, open-collector output, and TO-92 (ammo packing) package. It monitors VCC in real time, asserts active-low reset when supply drops below 2.9V (±0.15V), and features 50mV hysteresis to suppress noise-induced false triggering. Designed for CPU reset generation and battery backup control in embedded systems operating from -40°C to +85°C.
For engineers reviewing the AZ7029ZTR-E1 datasheet, AZ7029ZTR-E1 pinout, AZ7029ZTR-E1 application, or AZ7029ZTR-E1 equivalent, key selection criteria include its 2.9V detect accuracy, 0.8V minimum operating voltage, 300µA typical on-current, open-collector drive capability up to 20mA, and TO-92 ammo-pack compatibility for automated assembly.
Technical Context
The AZ7029ZTR-E1 integrates a precision bandgap voltage reference and comparator to continuously compare VCC against a trimmed 2.9V threshold. Its internal hysteresis (50mV typical) ensures stable output transitions during slow-rising/falling supply edges.
Operation relies on two defined voltage thresholds: VDET− = 2.9V (falling edge detection) and VDET+ = 2.95V (rising edge release), enabling reliable power-on reset assertion and noise-immune hold-off during brownout recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detect Voltage | 2.9V ±0.15V - precise threshold for 3.3V rail monitoring with guaranteed trip point across temperature. |
| Hysteresis Voltage | 50mV typical - prevents oscillation during noisy or slowly varying supply conditions. |
| Output Type | Open-collector - enables flexible pull-up to any logic rail (e.g., 3.3V or 5V) and wired-OR reset bus implementation. |
| Minimum Operating Voltage | 0.8V typical - ensures valid reset assertion down to ultra-low battery levels before system shutdown. |
| Supply Current (On) | 300µA typical - low quiescent draw preserves battery life in always-on monitoring applications. |
| Supply Current (Off) | 30µA typical - minimal leakage during normal operation reduces standby power overhead. |
| Propagation Delay | tpHL = 10µs, tpLH = 15µs - fast response supports tight reset timing budgets in microcontroller systems. |
Pinout & Package
Package: TO-92 (ammo packing), 3-pin through-hole, lead-free (E1 suffix), RoHS compliant. Dimensions per datasheet: 4.3–4.7mm body width, 12.5–14.5mm length, 1.27mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Open-collector output | Active-low reset signal; requires external pull-up resistor to define logic-high level and sink current during fault condition. |
| 2 (GND) | Ground reference | Return path for internal circuitry and output current; must be connected directly to system ground plane. |
| 3 (VCC) | Supply input | Monitored voltage rail; powers internal reference and comparator; operates from 0.8V to 18V. |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage detection | 2.9V threshold with ±0.15V tolerance over -40°C to +85°C - eliminates need for external trimming in cost-sensitive designs. |
| Ultra-low minimum operating voltage | 0.8V typical - enables reliable reset assertion even as primary battery depletes below 1V. |
| No external components required | Self-contained reference, comparator, and hysteresis - reduces BOM count and PCB area versus discrete solutions. |
| Robust noise immunity | 50mV hysteresis + internal filtering - prevents spurious resets in electrically noisy environments like motor-driven appliances. |
Applications
| Low Battery Voltage Detector | Processor Reset Generator |
|---|---|
Use Scenario: Monitoring lithium coin-cell or alkaline battery voltage in portable medical devices. IC Role / Device Role / Timing Role: Voltage detector asserting active-low reset when battery falls below 2.9V to prevent data corruption. Use Value: Ensures safe shutdown before brownout-induced memory loss, leveraging 0.8V minimum operating voltage to maximize usable battery capacity. |
Use Scenario: Providing power-on and brownout reset to ARM Cortex-M0 microcontrollers in industrial sensors. IC Role / Device Role / Timing Role: System supervisor generating clean, debounced reset pulse with 10µs fall-time delay. Use Value: Guarantees MCU starts only after stable 3.3V rail is established, eliminating boot failures due to marginal supply rise times. |
| Power Fail Indicator | Battery Backup Control |
Use Scenario: Detecting AC/DC adapter failure in smart home hubs to trigger graceful firmware save before backup battery takeover. IC Role / Device Role / Timing Role: Real-time VCC monitor driving LED or interrupt line upon sustained drop below 2.9V. Use Value: Enables user-visible alert and controlled state preservation using open-collector output compatible with 3.3V logic interfaces. |
Use Scenario: Enabling SRAM retention during main power loss in point-of-sale terminals using supercapacitor backup. IC Role / Device Role / Timing Role: Switching backup power path by controlling MOSFET gate via open-collector output. Use Value: Supports seamless transition with no gap in supply, thanks to fast 10µs response and ability to operate down to 0.8V during switchover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803DBZT | 2.93V threshold, SOT-23-3 package, 0.5µA max quiescent current | Lower power but higher minimum operating voltage (0.9V), no hysteresis specified in base variant | Prefer for ultra-low-power battery-only systems where 0.1V higher trip point and absence of hysteresis are acceptable. |
| MAX809SEUR+T | 2.93V threshold, SOT-23-3, 12µA quiescent current, built-in 240ms reset timeout | Includes fixed reset timeout; lacks adjustable hysteresis and has higher minimum operating voltage (1.0V) | Choose when deterministic reset pulse width is required and TO-92 form factor is not mandatory. |
Compared with TLV803DBZT and MAX809SEUR+T, the AZ7029ZTR-E1 offers superior noise immunity via guaranteed 50mV hysteresis, lower minimum operating voltage (0.8V vs ≥0.9V), and TO-92 ammo-pack compatibility for high-volume through-hole manufacturing - critical for cost-sensitive consumer appliance designs.
Availability
AZ7029ZTR-E1 is available at Aetrix Electronics and suitable for low-battery detection, processor reset generation, power fail indication, and battery backup control requiring stable component supply across automotive-grade temperature ranges and long-lifecycle production programs.
Supply support for AZ7029ZTR-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 China-based analog and mixed-signal IC designer specializing in power management, protection, and sensing solutions for industrial, consumer, and automotive markets.
The AZ70XX series is part of BCD's voltage supervisor product line, engineered for high-accuracy, low-power supply monitoring in cost-sensitive embedded systems where reliability and manufacturability are prioritized over programmability.
FAQ
What is the exact detect voltage tolerance for AZ7029ZTR-E1 across temperature?
The AZ7029ZTR-E1 has a detect voltage of 2.9V with ±0.15V tolerance over the full -40°C to +85°C operating range, as confirmed in the Electrical Characteristics table (VDET min/max = 2.75V/3.05V). Its temperature coefficient is ±0.01%/°C, ensuring stable trip points in thermal cycling environments.
Can AZ7029ZTR-E1 drive a 10kΩ pull-up resistor to 5V while maintaining valid logic-low output?
Yes. With 20mA output sink capability and ≤0.4V low-level output voltage at rated load, the AZ7029ZTR-E1 can reliably pull down a 10kΩ pull-up to 5V, resulting in <0.05V output voltage - well within standard TTL/CMOS low-level thresholds and providing ample noise margin.
Is the TO-92 ammo pack version compatible with standard wave soldering profiles?
Yes. The AZ7029ZTR-E1 uses Pb-free (RoHS-compliant) leads and meets JEDEC J-STD-020 moisture sensitivity level 1. Its TO-92 ammo packaging supports standard wave soldering with peak temperatures up to 260°C for ≤10 seconds, verified per BCD's mechanical dimensions and thermal ratings documentation.
How does hysteresis improve system reliability in brownout recovery scenarios?
Hysteresis creates a 50mV gap between detection (2.9V) and release (2.95V) thresholds, preventing rapid toggling of the reset signal when VCC lingers near the trip point during unstable power recovery. This eliminates repeated MCU resets and ensures clean, single-pulse assertion essential for deterministic firmware initialization.
AZ7029ZTR-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Cut Tape (CT)
- 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:
- Through Hole
- Supplier Device Package:
- TO-92
AZ7029ZTR-E1 FAQ
1.How can I place an order for AZ7029ZTR-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ7029ZTR-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 AZ7029ZTR-E1 reliable?
The price and inventory of AZ7029ZTR-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ7029ZTR-E1 is usually 5 days.
3.What payment methods are accepted for AZ7029ZTR-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ7029ZTR-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ7029ZTR-E1?
AZ7029ZTR-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ7029ZTR-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 AZ7029ZTR-E1?
For technical support, including AZ7029ZTR-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ7029ZTR-E1 requirements.
6.How does Aetrix verify that AZ7029ZTR-E1 is sourced from the original manufacturer or authorized distributors?
All AZ7029ZTR-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 AZ7029ZTR-E1 meets industry standards.
7.What is the process for return or replacement of AZ7029ZTR-E1?
All AZ7029ZTR-E1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ7029ZTR-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 AZ7029ZTR-E1 part is unused and in its original packaging.
Return procedure for AZ7029ZTR-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AZ7029ZTR-E1 Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
