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Analog Devices Inc./Maxim Integrated MAX6806UA23
- Part No.:
- MAX6806UA23
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6806UA23.pdf
- Description:
- IC SUPERVISOR 1 CHAN 8UMAX/USOP
- Quantity:
- Payment:
- Shipping:
Inventory:12,162
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Product details
Overview
MAX6806UA23 from Maxim Integrated is a precision voltage detector IC designed for power-supply monitoring in microprocessor-based systems. It features a factory-preset 2.3V ±2% reset threshold, active-low push-pull RESET output, and guaranteed operation down to VCC = 1.0V - enabling reliable brownout detection in battery-powered embedded controllers and intelligent instrumentation.
For engineers reviewing the MAX6806UA23 datasheet, MAX6806UA23 pinout, MAX6806UA23 application, or MAX6806UA23 equivalent, this device serves as a low-quiescent-current (35µA typical), hysteresis-equipped supervisory circuit for critical µP power sequencing, portable equipment power monitoring, and industrial controller reset assertion under supply droop.
Technical Context
The MAX6806UA23 implements a precision bandgap-based voltage comparator with internal hysteresis (VHYST = 0.02–0.03 × VTH−) to prevent output chatter near the 2.3V threshold. Its push-pull output drives logic-level RESET directly without external pull-up, supporting immediate assertion/deassertion with <30µs delay during VCC transients.
It operates across −40°C to +85°C with supply current stable from 1.0V to 5.5V VCC, and includes no external component requirements. The 8-pin µMAX package supports manual reset via MR input only in SOT143 variants - not applicable to MAX6806UA23.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.30V ±2% (VTH− at +25°C); ensures reset assertion before system ICs drop below minimum operating voltage |
| Supply Voltage Range | 1.0V to 5.5V; enables valid RESET output even during deep brownout or single-cell Li-ion discharge |
| Supply Current | 35µA typical at VCC = 3.6V; minimizes battery drain in portable equipment |
| RESET Delay | 30µs max (VCC falling at 1mV/µs); provides fast response to supply collapse without false triggering |
| Output Type | Active-low push-pull; eliminates need for external pull-up resistor and supports direct µP reset pin drive |
| Threshold Tempco | 30ppm/°C; maintains accuracy over full industrial temperature range |
| Reset Hysteresis | 0.02–0.03 × VTH−; prevents oscillation during slow-rising/falling VCC near trip point |
Pinout & Package
MAX6806UA23 is housed in an 8-pin µMAX package (outline 21-0036), pin-compatible with MC33064/MC34064 series. This thermally enhanced, surface-mount package measures 3.0mm × 3.0mm × 1.1mm and supports reflow soldering.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low push-pull reset output; sinks current when VCC < 2.3V, sources weakly when deasserted |
| 2 | VCC | Main supply input; powers internal comparator and output stage; valid from 1.0V to 5.5V |
| 3 | N.C. | No internal connection; must be left unconnected or tied to GND per layout best practice |
| 4 | GND | Analog and digital ground reference; requires low-impedance connection to system ground plane |
| 5–8 | N.C. | All four pins are not internally connected; must remain floating or grounded per PCB design rules |
Key Features
| Feature | Design Value |
|---|---|
| ±2% accurate reset threshold | Guarantees deterministic reset timing across voltage and temperature without calibration |
| 35µA supply current | Extends battery life in portable scanners and handheld instruments by minimizing quiescent load |
| RESET valid to VCC = 1.0V | Ensures fail-safe reset assertion even during severe undervoltage conditions |
| Internal hysteresis | Eliminates need for external hysteresis components and prevents metastability near threshold |
| No external components required | Reduces BOM count, PCB area, and qualification effort in space-constrained designs |
Applications
| Bar-Code Scanners | Intelligent Instruments |
|---|---|
Use Scenario: Battery-powered handheld scanner experiences rapid VCC sag during laser activation or RF transmission. IC Role / Device Role / Timing Role: Voltage detector asserting active-low RESET to halt processor execution until supply recovers. Use Value: Prevents corrupted memory writes or firmware lockup during transient brownout, using only 35µA quiescent current. |
Use Scenario: Portable multimeter or data logger powered by two AA cells discharging from 3.2V to 1.8V. IC Role / Device Role / Timing Role: Monitors supply rail and triggers controlled shutdown before ADC or display ICs malfunction. Use Value: 2.3V threshold aligns with 2.5V ±10% system spec; 1.0V operational floor ensures reset remains asserted to final battery depletion. |
| Critical µP Systems | Portable/Battery-Powered Equipment |
Use Scenario: Industrial controller must guarantee clean boot after power interruption or ripple-induced droop. IC Role / Device Role / Timing Role: Provides deterministic power-on reset and brownout detection independent of µP internal reset logic. Use Value: 30µs delay and ±2% threshold ensure reset meets JEDEC JESD84-B51 tRST timing requirements for ARM Cortex-M boot sequences. |
Use Scenario: Wearable health monitor operating from coin-cell battery with steep discharge curve. IC Role / Device Role / Timing Role: Detects end-of-life battery voltage and initiates graceful save-and-hibernate sequence. Use Value: Push-pull output drives µP reset pin directly; no pull-up needed - conserves board space and leakage-sensitive design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UT23D3+ | 2.32V threshold, 1.8µA supply current, open-drain output, SC70-3 package | Ultra-low-power IoT sensors requiring <5µA quiescent current; lacks push-pull drive | Select when minimizing standby current is critical and external pull-up is acceptable |
| TPS3808G33DBVR | 3.3V threshold, 2.8µA supply current, active-low push-pull, SOT23-5 package | Designed for 3.3V systems; incompatible threshold for 2.3V monitoring use case | Use only if redesigning for higher supply rail; not a functional substitute for MAX6806UA23 |
Compared with MAX6806UA23, MAX6326UT23D3+ trades higher noise immunity and lower IQ for open-drain interface complexity, while TPS3808G33DBVR serves a different voltage domain entirely - neither offers pin-compatible or functionally equivalent replacement without circuit modification.
Availability
MAX6806UA23 is available at Aetrix Electronics and suitable for critical µP power monitoring, portable/battery-powered equipment, and intelligent instrumentation requiring stable component supply and long-term industrial lifecycle support.
Supply support for MAX6806UA23 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, computing, and communications markets.
The MAX6806 family delivers precision voltage supervision for microprocessor systems - engineered for minimal external components, low IQ, and robust transient immunity in space- and power-constrained embedded applications.
FAQ
What is the exact reset threshold voltage of the MAX6806UA23?
The MAX6806UA23 has a factory-trimmed nominal reset threshold of 2.30V with ±2% accuracy over temperature (−40°C to +85°C). At +25°C, the guaranteed range is 2.254V to 2.346V (VTH−), and hysteresis adds ~0.046V to the rising threshold (VTH+).
Does the MAX6806UA23 support manual reset functionality?
No, the MAX6806UA23 in the 8-pin µMAX package does not include a manual reset (MR) input. Manual reset is only available on the 4-pin SOT143 variants (e.g., MAX6806US23-T); pins 5–8 of the MAX6806UA23 are N.C. and unused.
What is the minimum supply voltage at which MAX6806UA23 guarantees RESET assertion?
The MAX6806UA23 guarantees RESET remains asserted (low) for VCC ≥ 1.0V. Below 1.0V, the output becomes high-impedance; for applications requiring validity down to GND, a 100kΩ pulldown resistor on the RESET line is recommended.
Can MAX6806UA23 replace MC34064P-23 in existing designs?
No - although both are 2.3V reset detectors, MAX6806UA23 uses an 8-pin µMAX package with different pinout and no MR pin, whereas MC34064P-23 is an 8-pin SO device with MR functionality. They are not pin-compatible; layout revision is required.
What is the typical supply current of MAX6806UA23 at 3.6V VCC?
The typical supply current of MAX6806UA23 is 35µA at VCC = 3.6V and TA = +25°C. Maximum supply current is specified as 60µA over the full temperature range (−40°C to +85°C), making it suitable for ultra-low-power portable applications.
MAX6806UA23 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.6V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 30µs Typical
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-µMAX
MAX6806UA23 FAQ
1.How can I place an order for MAX6806UA23 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6806UA23 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 MAX6806UA23 reliable?
The price and inventory of MAX6806UA23 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6806UA23 is usually 5 days.
3.What payment methods are accepted for MAX6806UA23?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6806UA23 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6806UA23?
MAX6806UA23 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6806UA23 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 MAX6806UA23?
For technical support, including MAX6806UA23 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6806UA23 requirements.
6.How does Aetrix verify that MAX6806UA23 is sourced from the original manufacturer or authorized distributors?
All MAX6806UA23 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 MAX6806UA23 meets industry standards.
7.What is the process for return or replacement of MAX6806UA23?
All MAX6806UA23 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6806UA23, 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 MAX6806UA23 part is unused and in its original packaging.
Return procedure for MAX6806UA23:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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