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

Diodes Incorporated AZ7029RTR-E1

Name: AZ7029RTR-E1
Brand: Diodes Incorporated
SKU: AZ7029RTR-E1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AZ7029RTR-E1

Manufacturer:: Diodes Incorporated

Category:: Supervisors

Package:: TO-243AA

Datasheet:: AZ7029RTR-E1.pdf

Description:: IC SUPERVISOR 1 CHANNEL SOT89

Quantity:: RFQ Add To RFQ list

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Inventory:1,243

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Product details

Overview

AZ7029RTR-E1 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 supply monitoring in CPU reset and low-battery detection circuits. It operates from 0.8V minimum supply voltage, consumes only 30µA typical quiescent current at V_CC = 5.25V, and functions across –40°C to +85°C.

For engineers reviewing the AZ7029RTR-E1 datasheet, AZ7029RTR-E1 pinout, AZ7029RTR-E1 application, or AZ7029RTR-E1 equivalent, key selection criteria include detect voltage accuracy (±0.15V), hysteresis stability, open-collector drive capability (16mA min over temperature), and SOT-89 package thermal performance (θ_JC = 74°C/W).

Technical Context

The AZ7029RTR-E1 integrates a precision on-chip voltage reference and comparator to monitor V_CC against a fixed 2.9V threshold (V_DET− = 2.75V min, 3.05V max). Its hysteresis (V_HYS = 30–100mV) ensures noise immunity during voltage transients.

It features an open-collector output that pulls low when V_CC falls below V_DET− (tp_HL = 10µs), and releases high when V_CC rises above V_DET+ = V_DET− + V_HYS (tp_LH = 15µs), with valid operation maintained down to V_OPR = 0.8V.

Key Specifications

Parameter	Value and Actual Design Meaning
Detect Voltage	2.9V nominal (2.75–3.05V range); sets precise power-fail trigger point for system reset
Hysteresis Voltage	50mV typical (30–100mV); prevents chatter during noisy or slowly ramping supply conditions
Quiescent Current	30µA typical at 5.25V; enables ultra-low-power battery-backed monitoring
Min Operating Voltage	0.8V typical; guarantees functional output down to near-dead-battery levels
Output Sink Current	16mA min over –40°C to +85°C; drives standard pull-up resistors and logic inputs directly
Low-Level Output	≤0.4V at I_OL = 20mA; ensures clean TTL/CMOS-compatible reset assertion
Temp Coefficient	±0.01%/°C; maintains threshold stability across industrial temperature range

Pinout & Package

SOT-89 package: 3-pin surface-mount, thermally enhanced plastic case with exposed tab (θ_JC = 74°C/W), footprint compatible with JEDEC TO-243AA standard.

Pin/Terminal	Circuit Role	Design Meaning
1 (OUT)	Open-collector output	Active-low reset signal; requires external pull-up; sinks up to 16mA
2 (GND)	Ground reference	Return path for internal circuitry and output current; connects to system ground plane
3 (V_CC)	Supply input	Monitored voltage rail; powers internal reference and comparator; operates down to 0.8V

Key Features

Feature	Design Value
Precision threshold accuracy	±0.15V tolerance at 2.9V ensures consistent reset timing across production lots
Ultra-low standby current	30µA typical at 5.25V extends battery life in always-on monitoring applications
Robust noise immunity	50mV typical hysteresis suppresses false triggers from supply ripple or EMI
Wide operating voltage range	Valid function from 0.8V to 18V enables use across diverse rail voltages (1.8V–12V systems)
Industrial temperature support	–40°C to +85°C operation validated per JEDEC JESD22-A104, suitable for embedded control

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 detector asserting active-low reset when battery drops below 2.9V.

Use Value: Prevents data corruption by halting microcontroller operation before brownout-induced instability occurs.

Use Scenario: Power-on and brownout reset generation for 3.3V ARM Cortex-M0 microcontrollers.

IC Role / Device Role / Timing Role: System supervisor providing tp_HL = 10µs reset pulse delay and tp_LH = 15µs release timing.

Use Value: Guarantees clean, glitch-free reset assertion independent of supply ramp rate or noise.

Power Fail Indicator

Battery Backup Control

Use Scenario: Early-warning indicator in smart metering systems detecting AC/DC converter sag.

IC Role / Device Role / Timing Role: Open-collector output driving LED or optocoupler to signal imminent power loss.

Use Value: Enables 100ms+ warning window via RC timing on pull-up node before full shutdown.

Use Scenario: Enabling backup power switchover in real-time clock (RTC) modules during main supply failure.

IC Role / Device Role / Timing Role: Threshold detector enabling backup battery path when V_CC falls below 2.9V.

Use Value: Maintains RTC timekeeping integrity with no gap during transition between primary and backup sources.

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage detector applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV803EB29DPWR	2.93V threshold, 350nA max I_Q, SOT-23-3 package, no hysteresis programmability	Lower power but tighter threshold tolerance (±0.5% vs ±5.2%); lacks user-adjustable hysteresis	Select for ultra-low-power battery applications where 2.93V match suffices and hysteresis margin is design-controlled externally
MAX809SEUR+T	2.93V threshold, 12µA I_Q, SOT-23-3, fixed 240ms reset timeout	Includes built-in reset timer; incompatible for immediate-reset applications requiring sub-µs response	Select when deterministic reset pulse width >200ms is required, not for instantaneous voltage tracking

Compared with TLV803EB29DPWR and MAX809SEUR+T, AZ7029RTR-E1 offers higher sink current (16mA vs ≤10mA), wider supply range (0.8–18V vs 1–6V), and guaranteed hysteresis-making it optimal for industrial power rails with variable noise profiles and legacy reset architectures.

Availability

AZ7029RTR-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 infotainment, industrial PLCs, and smart home appliances.

Supply support for AZ7029RTR-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 mixed-signal IC designer and foundry, specializing in high-reliability power management and sensing solutions for industrial and consumer markets.

The AZ70XX series belongs to BCD's precision voltage supervisor product line, engineered specifically for cost-sensitive, high-volume applications demanding accurate, low-power supply monitoring without external components.

FAQ

What is the exact detect voltage tolerance for AZ7029RTR-E1?

The AZ7029RTR-E1 has a specified detect voltage range of 2.75V to 3.05V at 25°C (±0.15V around nominal 2.9V), with ±0.01%/°C temperature coefficient. This tolerance is verified per BCD's datasheet Table 1 under "Detect Voltage" parameter with RL = 200Ω load and VOL ≤ 0.4V condition.

Can AZ7029RTR-E1 drive a 10kΩ pull-up resistor directly?

Yes - with its 16mA minimum sink current over temperature and ≤0.4V low-level output voltage at 20mA, the AZ7029RTR-E1 easily pulls down a 10kΩ pull-up to <0.1V at 3.3V rail, ensuring robust logic-low assertion for MCU reset inputs without additional buffering.

Is the SOT-89 package lead-free and RoHS compliant?

Yes - the "E1" suffix in AZ7029RTR-E1 explicitly denotes BCD's RoHS-compliant, lead-free construction per EU Directive 2011/65/EU, with green molding compound and matte-tin lead finish meeting JEDEC J-STD-020 moisture sensitivity level 3 requirements.

Does AZ7029RTR-E1 require an external capacitor for stability?

No - the AZ7029RTR-E1 is internally compensated and requires no external capacitor. Its functional block diagram shows no compensation pin, and the datasheet specifies stable operation with CL ≤ 100pF (tested per Figure 12), making it suitable for direct connection to PCB traces and logic inputs without added components.

AZ7029RTR-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:: 2.9V

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-E1 FAQ

1.How can I place an order for AZ7029RTR-E1 through Aetrix?

Please submit a Request for Quotation (RFQ) for AZ7029RTR-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 AZ7029RTR-E1 reliable?

The price and inventory of AZ7029RTR-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ7029RTR-E1 is usually 5 days.

3.What payment methods are accepted for AZ7029RTR-E1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ7029RTR-E1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AZ7029RTR-E1?

AZ7029RTR-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AZ7029RTR-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 AZ7029RTR-E1?

For technical support, including AZ7029RTR-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ7029RTR-E1 requirements.

6.How does Aetrix verify that AZ7029RTR-E1 is sourced from the original manufacturer or authorized distributors?

All AZ7029RTR-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 AZ7029RTR-E1 meets industry standards.

7.What is the process for return or replacement of AZ7029RTR-E1?

All AZ7029RTR-E1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ7029RTR-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 AZ7029RTR-E1 part is unused and in its original packaging.

Return procedure for AZ7029RTR-E1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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