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Analog Devices Inc./Maxim Integrated MAX6832HXRD3+T
- Part No.:
- MAX6832HXRD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6832HXRD3+T.pdf
- Description:
- IC MPU SUPERVISOR SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,008
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Product details
Overview
MAX6832HXRD3+T from Maxim Integrated is a 3-pin SC70 ultra-low-voltage microprocessor reset circuit with active-low push-pull RESET output, 1.313V factory-set reset threshold, and 210ms reset timeout period. It monitors +1.2V to +1.8V supply rails in portable systems and asserts reset during brownout or power-down events. Designed for battery-powered µP applications requiring guaranteed reset validity down to VCC = 0.55V.
For engineers reviewing the MAX6832HXRD3+T datasheet, MAX6832HXRD3+T pinout, MAX6832HXRD3+T application, or MAX6832HXRD3+T equivalent, key selection criteria include its fixed 1.313V threshold accuracy (±2.5% over temperature), 7.5µA typical supply current, SC70-3 package footprint, and immunity to short negative VCC transients - all critical for low-power embedded power monitoring.
Technical Context
The MAX6832HXRD3+T implements a precision bandgap-based voltage comparator with hysteresis (0.75% of VTH) to detect VCC drops below 1.313V. Its internal reset timer generates a fixed 210ms active-low assertion after VCC recovers or manual reset deassertion.
No MR input is present on this variant (MAX6832 series uses SC70-3 with GND/VCC/RESET only); reset is triggered solely by VCC monitoring. The push-pull output drives low with ≤0.15V VOL at 15µA sink, ensuring reliable interface with CMOS µP reset inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.313V ±2.5% over -40°C to +85°C - ensures accurate brownout detection for 1.3V-core systems |
| Reset Timeout Period | 210ms - guarantees µP reset hold time exceeds boot initialization requirements |
| Supply Current | 7.5µA typical at +25°C - enables multi-year operation in coin-cell–powered devices |
| VCC Operating Range | +0.55V to +3.6V - supports valid reset assertion even during deep discharge |
| Output Type | Push-pull active-low RESET - eliminates external pullup, simplifies PCB layout |
| Reset Validity Limit | VCC ≥ 0.55V - RESET remains functional down to near-zero supply, preventing undetermined logic states |
| Package | SC70-3 - 2.0mm × 2.1mm footprint, compatible with high-density portable designs |
Pinout & Package
MAX6832HXRD3+T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm, 0.65mm pitch). Pin 1 is GND, Pin 2 is RESET (active-low push-pull), Pin 3 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for reset comparator and output stage; must be low-impedance connection |
| 2 | RESET | Active-low push-pull output; sinks current when asserted, floats high when inactive |
| 3 | VCC | Monitored supply input and device power rail; also defines reset comparator reference |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.313V threshold | Eliminates external resistor networks and calibration, reducing BOM count and board space |
| ±2.5% threshold accuracy over temp | Guarantees consistent brownout response across industrial temperature range without derating |
| 210ms timeout period | Meets JEDEC JESD79-4 DDR4 initialization timing and most ARM Cortex-M boot sequences |
| 7.5µA supply current | Enables integration into always-on subsystems without compromising battery life |
| Immunity to <100ns VCC glitches | Prevents spurious resets in noisy DC/DC converter environments without added filtering |
Applications
| Wearable Health Monitors | Industrial Sensor Nodes |
|---|---|
Use Scenario: Coin-cell–powered ECG patch continuously samples biopotentials and transmits via BLE. IC Role / Device Role / Timing Role: Voltage detector supervising 1.3V LDO output powering MCU and analog front-end. Use Value: 7.5µA quiescent current extends battery life beyond 12 months; 210ms reset ensures clean boot after cold-start from depleted cell. |
Use Scenario: Wireless vibration sensor deployed in factory machinery with intermittent solar charging. IC Role / Device Role / Timing Role: Brownout protector for 1.35V core rail feeding ARM Cortex-M0+ and MEMS accelerometer. Use Value: 1.313V threshold matches nominal supply; ±2.5% accuracy prevents false resets during thermal cycling in uncontrolled environments. |
| Medical Infusion Pumps | Smart Metering Modules |
Use Scenario: Battery-backed infusion controller maintains precise dosing during AC power loss. IC Role / Device Role / Timing Role: Primary reset supervisor asserting on 1.3V system rail collapse. Use Value: Guaranteed reset validity down to VCC = 0.55V ensures deterministic shutdown before EEPROM corruption occurs. |
Use Scenario: PLC-connected electricity meter with isolated RS-485 interface and real-time clock. IC Role / Device Role / Timing Role: Power-fail detector for 1.3V RTC backup domain and flash memory write protection. Use Value: Push-pull RESET eliminates need for external pullup, reducing component count in safety-critical metering BOM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector and µP reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6381XR24+T | 2.4V reset threshold, 200ms timeout, SC70-3, same 7.5µA ICC | Designed for higher-voltage I/O domains (2.5V/3.3V), not 1.2V–1.8V core rails | Select when monitoring 2.4V supplies; not interchangeable due to threshold mismatch |
| TPS3123E13DBVR | 1.3V threshold (±0.5%), 200ms timeout, SOT-23-3, 1.6µA ICC | Lower quiescent current but tighter threshold tolerance; different pinout (VCC/GND/RESET vs. GND/RESET/VCC) | Consider for ultra-low-power designs where pin compatibility is verified; requires layout change |
Compared with MAX6832HXRD3+T, MAX6381XR24+T serves higher supply voltages and cannot replace it in 1.3V systems, while TPS3123E13DBVR offers lower ICC but demands PCB redesign due to reversed pin assignment and lacks identical transient immunity specs.
Availability
MAX6832HXRD3+T is available at Aetrix Electronics and suitable for portable medical devices, industrial wireless sensors, and battery-backed smart meters requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6832HXRD3+T 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
Maxim Integrated is a semiconductor company specializing in analog and mixed-signal ICs for power management, sensing, and interface applications.
The MAX6832–MAX6840 family was designed specifically for ultra-low-voltage microprocessor supervision in space-constrained, battery-operated systems requiring sub-1.8V reset thresholds and nanowatt-level quiescent power.
FAQ
What is the exact reset threshold voltage of MAX6832HXRD3+T and how stable is it over temperature?
The MAX6832HXRD3+T has a factory-set reset threshold of 1.313V with ±2.5% accuracy over the full -40°C to +85°C operating range. This specification is guaranteed by design and confirmed in the Electrical Characteristics table of the datasheet. The threshold exhibits minimal drift, with normalized plots showing <±0.5% variation across temperature, making it suitable for precision low-voltage monitoring where stability is critical.
Does MAX6832HXRD3+T include a manual reset (MR) input?
No, the MAX6832HXRD3+T does not feature a manual reset input. As a member of the MAX6832 series in SC70-3 package, it contains only three pins: GND, RESET, and VCC. Manual reset capability is exclusive to the 4-pin variants (e.g., MAX6835/MAX6836/MAX6837) which include an MR pin. The MAX6832HXRD3+T relies solely on VCC monitoring for reset assertion.
What is the function of the RESET pin on MAX6832HXRD3+T and what load can it drive?
The RESET pin on MAX6832HXRD3+T is an active-low push-pull output that sinks current when asserted. It guarantees a maximum VOL of 0.15V at 15µA sink current and remains functional down to VCC = 0.55V. It directly interfaces with standard CMOS µP reset inputs without external components, eliminating the need for pullup resistors required by open-drain alternatives.
Can MAX6832HXRD3+T monitor supply voltages below 1.2V?
No, the MAX6832HXRD3+T is specified for operation with VCC from +0.55V to +3.6V, but its reset comparator is optimized for nominal supplies between +1.2V and +1.8V. While it asserts reset down to VCC = 0.55V, the 1.313V threshold is not intended for sub-1.2V monitoring. For lower thresholds (e.g., 0.6V), the MAX6838/MAX6839/MAX6840 series with RESET-IN pin should be used instead.
Is MAX6832HXRD3+T RoHS-compliant and what does the "+T" suffix indicate?
Yes, MAX6832HXRD3+T is RoHS-compliant. The "+T" suffix explicitly denotes lead-free, halogen-free packaging per Maxim Integrated's ordering conventions. It replaces the standard "-T" tape-and-reel suffix to indicate compliance with environmental regulations, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 specifications for surface-mount assembly.
MAX6832HXRD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.313V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6832HXRD3+T FAQ
1.How can I place an order for MAX6832HXRD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6832HXRD3+T 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 MAX6832HXRD3+T reliable?
The price and inventory of MAX6832HXRD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6832HXRD3+T is usually 5 days.
3.What payment methods are accepted for MAX6832HXRD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6832HXRD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6832HXRD3+T?
MAX6832HXRD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6832HXRD3+T 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 MAX6832HXRD3+T?
For technical support, including MAX6832HXRD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6832HXRD3+T requirements.
6.How does Aetrix verify that MAX6832HXRD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6832HXRD3+T 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 MAX6832HXRD3+T meets industry standards.
7.What is the process for return or replacement of MAX6832HXRD3+T?
All MAX6832HXRD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6832HXRD3+T, 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 MAX6832HXRD3+T part is unused and in its original packaging.
Return procedure for MAX6832HXRD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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