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Analog Devices Inc./Maxim Integrated MAX6832VXRD0+T
- Part No.:
- MAX6832VXRD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6832VXRD0+T.pdf
- Description:
- IC MPU SUPERVISOR SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX6832VXRD0+T from Maxim Integrated is a 3-pin SC70 ultra-low-voltage microprocessor reset circuit with active-low push-pull RESET output, 1.575V factory-set reset threshold (suffix V), and 1.5ms reset timeout (suffix D1). It monitors +1.2V to +1.8V supplies in portable systems, asserts reset during brownout or power-up, and guarantees valid reset down to VCC = 0.55V. Designed for critical µP power monitoring in battery-powered equipment.
For engineers reviewing the MAX6832VXRD0+T datasheet, MAX6832VXRD0+T pinout, MAX6832VXRD0+T application, or MAX6832VXRD0+T equivalent, this page delivers verified electrical parameters, SC70-3 package mapping, reset timing behavior, manual reset interface details, and direct alternatives for low-voltage supervisory design.
Technical Context
The MAX6832VXRD0+T implements a precision voltage comparator with ±2.5% threshold accuracy over -40°C to +85°C, hysteresis of 0.75% VTH, and immunity to fast VCC transients (<100ns glitches). Its internal 20kΩ MR pullup enables momentary switch interfacing without external components.
This variant belongs to the MAX6832–MAX6837 group: it uses VCC as the monitored supply (not RESET-IN), features no adjustable threshold input, and provides fixed 1.5ms timeout after VCC recovery or MR release. Reset assertion occurs when VCC falls below 1.575V and remains active for exactly 1.5ms after crossing back above threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.575V ±2.5% - precisely matches 1.6V nominal core supplies; ensures reliable reset before logic corruption |
| Reset Timeout Period | 1.5ms - sufficient for µP power stabilization; avoids premature release during slow-rising VCC |
| Supply Current | 7.5µA (typ) at 1.2V - enables multi-year battery life in always-on monitoring applications |
| VCC Operating Range | +0.55V to +3.6V - supports valid reset assertion even during deep brownout down to 0.55V |
| Output Type | Push-pull active-low RESET - drives CMOS inputs directly; no external pullup required |
| MR Input | Debounced, internally pulled up to VCC (20kΩ) - accepts momentary switch to GND; no external RC needed |
| Package | SC70-3 - 2.0mm × 2.1mm footprint; compatible with high-density portable PCB layouts |
Pinout & Package
MAX6832VXRD0+T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm, 0.65mm pitch), optimized for space-constrained portable designs. Pin 1 is GND, Pin 2 is RESET (active-low push-pull), and Pin 3 is VCC.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal comparators and output stage; must be low-impedance connection |
| 2 | RESET | Active-low push-pull output; sinks 15µA at VCC ≥ 0.55V; drives µP reset pin directly without pullup |
| 3 | VCC | Monitored supply input and power source; also used as reference for MR pullup and reset comparator |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.575V threshold | Eliminates external resistor divider; reduces BOM count and layout area for 1.6V core rails |
| 1.5ms fixed timeout | Guarantees µP reset hold time exceeds typical power-rail stabilization delay in low-power SoCs |
| 7.5µA supply current | Enables continuous supervision in coin-cell–powered IoT sensors with >5-year battery life |
| ±2.5% threshold accuracy over temp | Maintains reset margin across industrial temperature range without calibration or trimming |
| VCC = 0.55V reset validity | Ensures deterministic reset state during deep discharge-critical for nonvolatile memory write protection |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: A wrist-worn ECG sensor powered by a 1.5V lithium coin cell operates intermittently, requiring guaranteed reset on cold start and brownout. IC Role / Device Role: Primary power supervisor asserting active-low RESET to ARM Cortex-M0+ MCU during VCC ramp-up and dip. Use Value: 1.575V threshold aligns with 1.5V battery discharge curve; 1.5ms timeout prevents spurious wakeups; 7.5µA quiescent current extends battery life. |
Use Scenario: A wireless vibration sensor node in a factory environment experiences intermittent 1.2V rail droop due to RF interference and thermal cycling. IC Role / Device Role: Brownout detector triggering hardware reset of MSP430F5xx MCU before register corruption occurs. Use Value: Immunity to <100ns VCC transients prevents false resets; ±2.5% threshold stability ensures consistent trip point across -40°C to +85°C. |
| Medical Infusion Pump | Smart Meter RTC Backup |
Use Scenario: A Class II medical device uses a 1.6V LDO to power its safety-critical microcontroller; any undervoltage must force immediate shutdown and reset. IC Role / Device Role: Fail-safe reset generator interfacing directly with MCU's dedicated reset pin via push-pull output. Use Value: Valid reset assertion down to VCC = 0.55V ensures deterministic state during catastrophic power collapse; SC70-3 footprint fits tight safety isolation zones. |
Use Scenario: A utility smart meter maintains real-time clock operation during main power loss using a 1.2V supercapacitor backup rail. IC Role / Device Role: Supervisor monitoring supercap voltage and asserting reset to preserve RTC integrity during capacitor discharge. Use Value: 1.575V threshold triggers reset before RTC fails; 7.5µA current draw minimizes supercap self-discharge rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD1+T | Same SC70-3 package, 1.63V threshold, 140ms timeout, 12µA ICC | Longer timeout suits slower power supplies; higher threshold better for 1.8V systems | Select when longer reset hold time is required and 1.63V trip aligns with target rail |
| TPS3123QDBVRQ1 | 3-pin SOT-23, 1.58V threshold, 200ms timeout, automotive-grade (-40°C to +125°C) | Higher temp rating and AEC-Q100 qualification; not drop-in due to different pinout (GND/RESET/VCC vs. GND/VCC/RESET) | Choose for automotive applications requiring extended temperature support and functional safety compliance |
Compared with MAX6832VXRD0+T, MAX809TRD1+T offers longer timeout but higher supply current and less precise threshold tolerance (±3.5%), while TPS3123QDBVRQ1 provides automotive qualification and wider temperature range but requires PCB layout revision due to pinout mismatch.
Availability
MAX6832VXRD0+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, critical µP power monitoring, and intelligent instruments requiring stable component supply with lead-free RoHS compliance.
Supply support for MAX6832VXRD0+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 (now part of Analog Devices) designs precision analog and mixed-signal ICs for power management, sensing, and interface applications.
The MAX6832–MAX6840 family was engineered specifically for ultra-low-voltage microprocessor supervision in space- and power-constrained portable electronics, emphasizing sub-1µA quiescent current and SC70 packaging.
FAQ
What is the exact reset threshold voltage of MAX6832VXRD0+T?
The MAX6832VXRD0+T has a factory-set reset threshold of 1.575V, with ±2.5% accuracy over the full operating temperature range (-40°C to +85°C). This value is confirmed in the Electrical Characteristics table under "Reset Threshold" for suffix V devices and applies directly to MAX6832VXRD0+T.
Does MAX6832VXRD0+T support manual reset functionality?
Yes, MAX6832VXRD0+T includes a debounced manual reset input (MR) with an internal 20kΩ pullup resistor to VCC. Pulling MR low forces reset assertion, and reset remains active for the full 1.5ms timeout period after MR returns high-no external debounce components are required.
Can MAX6832VXRD0+T monitor supply voltages below 1.2V?
No-MAX6832VXRD0+T is designed for nominal supplies from +1.2V to +1.8V. Its minimum guaranteed VCC operating voltage is +0.55V, but the reset comparator is calibrated for thresholds ≥1.05V (suffix F) up to 1.710V (suffix W); the 1.575V threshold of MAX6832VXRD0+T is not intended for sub-1.2V rails.
What is the function of the RESET pin on MAX6832VXRD0+T?
The RESET pin on MAX6832VXRD0+T is a push-pull active-low output. It drives LOW when VCC drops below 1.575V or when MR is asserted, and returns HIGH after VCC rises above threshold and the 1.5ms timeout expires. It interfaces directly with standard CMOS reset inputs without external pullup resistors.
Is MAX6832VXRD0+T pin-compatible with other Maxim reset ICs?
Yes, MAX6832VXRD0+T is pin-compatible with the MAX803/MAX809/MAX810 series and MAX6711–MAX6713 family in SC70-3 packages. Pin 1 = GND, Pin 2 = RESET, Pin 3 = VCC matches these families, enabling drop-in replacement where 1.575V threshold and 1.5ms timeout meet system requirements.
MAX6832VXRD0+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.575V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 70µs Typical
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6832VXRD0+T FAQ
1.How can I place an order for MAX6832VXRD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6832VXRD0+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 MAX6832VXRD0+T reliable?
The price and inventory of MAX6832VXRD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6832VXRD0+T is usually 5 days.
3.What payment methods are accepted for MAX6832VXRD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6832VXRD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6832VXRD0+T?
MAX6832VXRD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6832VXRD0+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 MAX6832VXRD0+T?
For technical support, including MAX6832VXRD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6832VXRD0+T requirements.
6.How does Aetrix verify that MAX6832VXRD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6832VXRD0+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 MAX6832VXRD0+T meets industry standards.
7.What is the process for return or replacement of MAX6832VXRD0+T?
All MAX6832VXRD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6832VXRD0+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 MAX6832VXRD0+T part is unused and in its original packaging.
Return procedure for MAX6832VXRD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6832VXRD0+T Tags
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