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Analog Devices Inc./Maxim Integrated MAX16016PTBR+T
- Part No.:
- MAX16016PTBR+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX16016PTBR+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,234
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Product details
Overview
MAX16016PTBR+T from Maxim Integrated is a low-power microprocessor supervisory circuit that monitors VCC supply voltage, provides battery-backup switchover for SRAM/RTC retention, and gates chip-enable (CE) signals to prevent memory corruption during brownout. It features a 145ms reset timeout, 1.2µA supply current, open-drain RESET output, and fixed 2.549V–2.755V reset threshold (suffix R). Used in GPS modules and point-of-sale terminals requiring reliable power-fail response.
For engineers reviewing the MAX16016PTBR+T datasheet, MAX16016PTBR+T pinout, MAX16016PTBR+T application, or MAX16016PTBR+T equivalent, key selection criteria include its 10-pin TDFN package, battery-freshness seal, integrated watchdog timer (1.2s timeout), power-fail comparator (0.590V threshold), and CE gating with 1.5ns propagation delay - all validated for -40°C to +85°C operation.
Technical Context
The MAX16016PTBR+T implements a dual-path power-switching architecture: when VCC falls below its reset threshold (2.63V typ) and VBATT > VCC, it disconnects VCC from OUT and connects BATT to maintain memory backup. Its internal watchdog timer triggers reset if WDI remains static beyond 1.235s (max), while the PFI comparator monitors auxiliary rails down to 0.590V with 30mV hysteresis.
It integrates a debounced manual reset input (MR) with 30kΩ internal pullup, active-low open-drain RESET output with 20µs falling-edge delay, and battery-status indicators (BATTON, BATTOK). The device operates from 1.53V to 5.5V and draws only 0.25µA in battery-backup mode - enabling long-term RTC/SRAM retention on coin cells.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.549V (min) to 2.755V (max); ensures reliable µP reset before VCC drops below 3.0V logic margin |
| Reset Timeout Period | 145ms (min); guarantees sufficient hold time for µP initialization after power recovery |
| Supply Current | 3.4µA (typ) at VCC = 5.5V; enables ultra-low-power system monitoring without burdening main rail |
| Battery-Backup Current | 0.25µA (typ) at VCC = 0V; extends CR2032 battery life to >10 years in RTC applications |
| Power-Fail Threshold | 0.590V (typ); supports precise low-voltage monitoring of auxiliary supplies via resistive divider |
| Watchdog Timeout | 1.235s (max); detects firmware hangs in embedded systems without external timing components |
| VCC-to-OUT On-Resistance | 2.6Ω (typ) at VCC = 1.91V; minimizes voltage drop during main-supply operation |
Pinout & Package
MAX16016PTBR+T is housed in a 10-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) connected to GND for thermal management. Pin 1 is VCC; pin 10 is OUT; pin 8 is GND; pin 9 is RESET (open-drain).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Main supply input | Bypassed with 0.1µF capacitor; powers internal circuitry and drives RESET/PFO outputs |
| 2 BATT | Backup battery input | Connects to coin cell; sources OUT during VCC brownout with <0.55µA standby leakage |
| 3 MR | Manual reset input | Active-low; internally pulled up to VCC (30kΩ); initiates reset independent of VCC level |
| 4 PFI | Power-fail comparator input | Accepts resistive divider; referenced to 0.590V internal threshold for auxiliary rail monitoring |
| 5 WDI | Watchdog timer input | Rising/falling edge clears timer; static state >1.235s triggers reset pulse |
| 6 BATTON | Battery-on indicator | Active-high; signals valid battery-backup mode for system-level power-state awareness |
| 7 PFO | Power-fail output | Active-low open-drain; asserts when PFI falls below threshold, enabling NMI or alert signaling |
| 8 GND | Ground reference | Primary return path; EP must be soldered to large ground plane for thermal performance |
| 9 RESET | Reset output | Open-drain; pulls low during VCC brownout, MR assertion, or watchdog timeout |
| 10 OUT | Switched output | Connected to VCC or BATT based on switchover logic; powers SRAM/RTC in backup mode |
Key Features
| Feature | Design Value |
|---|---|
| Battery freshness seal | Prevents premature discharge during storage by isolating BATT until first power-up |
| Integrated CE gating | 1.5ns propagation delay enables use with high-speed µPs; prevents memory write errors during brownout |
| Debounced manual reset | No external RC required; 120ns MR-to-RESET delay ensures noise immunity in industrial environments |
| Low-line output (LL) | Asserts 2.5% above reset threshold to provide early warning for orderly software shutdown |
| UL® certification | IEC 60950-1 compliance simplifies safety approval for end equipment in industrial and consumer markets |
Applications
| GPS Systems | Point-of-Sale Equipment |
|---|---|
Use Scenario: Maintaining real-time clock and last-known position data during vehicle ignition cycling or battery disconnection. IC Role / Device Role / Timing Role: Supervisory IC providing VCC brownout detection, battery-backed SRAM retention, and reset coordination for GPS baseband processor. Use Value: Enables instant location fix on restart by preserving RTC time and almanac data without external backup controller. | Use Scenario: Securing transaction logs and configuration settings in retail terminals during AC power interruption or battery swap. IC Role / Device Role / Timing Role: Memory protection supervisor asserting CE gating and reset to prevent partial writes to flash/NVRAM during power collapse. Use Value: Eliminates data corruption risk during brownout by blocking CE signals for 12µs after reset assertion. |
| Industrial Control | Portable/Battery Equipment |
Use Scenario: Preserving PLC register states and sensor calibration data during factory line power fluctuations. IC Role / Device Role / Timing Role: Dual-rail supervisor monitoring both 5V control bus and 3.3V logic supply, with coordinated reset and battery switchover. Use Value: Guarantees deterministic recovery after voltage sag by holding reset for ≥145ms and enabling watchdog-triggered fail-safe routines. | Use Scenario: Extending runtime of handheld medical devices using coin-cell backup for critical parameter storage. IC Role / Device Role / Timing Role: Ultra-low-power supervisor drawing 0.25µA in battery mode to sustain RTC and EEPROM for >10 years. Use Value: Reduces bill-of-materials by integrating battery switchover, reset, watchdog, and status indicators in one 3mm × 3mm package. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16020PTEZ+ | 16-pin TQFN; adds CEIN/CEOUT gating, LL output, and BATT_TEST; push-pull RESET | Required for systems needing chip-enable control and low-line early-warning interrupt | Select when CE signal protection and dual reset outputs (RESET/WDO) are mandatory |
| TPS3808G33DBVR | Single-supply reset IC; no battery switchover, no CE gating, no watchdog; 3.3V fixed threshold | Suitable only for basic reset generation without backup or memory protection functions | Choose only for cost-sensitive designs where battery backup and CE control are omitted |
Compared with MAX16020PTEZ+, MAX16016PTBR+T offers smaller footprint and lower quiescent current but lacks CE gating and low-line warning. Versus TPS3808G33DBVR, it delivers full battery-backup supervision and integrated watchdog - essential for data-critical portable systems.
Availability
MAX16016PTBR+T is available at Aetrix Electronics and suitable for GPS systems, point-of-sale terminals, and portable medical devices requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX16016PTBR+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 connectivity in industrial, automotive, and computing applications.
The MAX16016 belongs to Maxim's µP supervisory family, engineered specifically for robust power-monitoring and battery-backed memory retention in space-constrained, low-power embedded systems.
FAQ
What is the reset threshold voltage range for MAX16016PTBR+T?
The MAX16016PTBR+T has a reset threshold range of 2.549V (min) to 2.755V (max), with a typical value of 2.63V. This fixed threshold is defined by the "R" suffix in the part number and is guaranteed over the full -40°C to +85°C operating temperature range. The threshold exhibits ±0.5% variation across temperature, ensuring consistent reset behavior in varying environmental conditions. MAX16016PTBR+T uses this precise trip point to initiate reset before VCC drops below safe logic levels for connected microprocessors.
Does MAX16016PTBR+T support battery backup for SRAM retention?
Yes, MAX16016PTBR+T provides automatic battery-backup switchover for SRAM retention. When VCC falls below its reset threshold and VBATT exceeds VCC, the device disconnects VCC from OUT and connects the backup battery (BATT pin) to OUT. It draws only 0.25µA in battery-backup mode, enabling multi-year retention on standard coin cells. The BATTON output signals active backup mode, and the BATT freshness seal prevents discharge during storage. MAX16016PTBR+T maintains this function without external MOSFETs or control logic.
What is the function of the WDI pin on MAX16016PTBR+T?
WDI (Watchdog Input) on MAX16016PTBR+T resets the internal watchdog timer on each rising or falling edge. If WDI remains static (high or low) longer than the timeout period (0.83s to 1.64s), the watchdog triggers a reset pulse for the full 145ms timeout duration. This detects firmware lockups in µP-based systems. To disable the watchdog, leave WDI unconnected or drive it with a three-state output. MAX16016PTBR+T requires no external components to implement this safety-critical function.
Can MAX16016PTBR+T monitor auxiliary power rails besides VCC?
Yes, MAX16016PTBR+T includes a dedicated power-fail comparator with PFI input and PFO output. PFI accepts a resistive divider from any auxiliary rail (e.g., 1.8V, 2.5V) and compares it to a precise 0.590V internal reference. When the divided voltage falls below this threshold, PFO asserts low - enabling non-maskable interrupts or system alerts. The comparator features 30mV hysteresis for noise immunity and draws less than 1µA. MAX16016PTBR+T thus supports multi-rail monitoring without additional comparators.
What package type and thermal characteristics does MAX16016PTBR+T use?
MAX16016PTBR+T uses a 10-pin 3mm × 3mm TDFN-EP package with an exposed pad (EP) internally connected to GND. Its junction-to-ambient thermal resistance (θJA) is 41°C/W, and junction-to-case (θJC) is 9°C/W, measured per JEDEC JESD51-7 on a four-layer board. The EP must be soldered to a large PCB ground plane to achieve rated power dissipation (1951mW at +70°C). This compact, thermally efficient package suits dense portable and industrial layouts. MAX16016PTBR+T operates reliably from -40°C to +85°C with full specification.
MAX16016PTBR+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 145ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
MAX16016PTBR+T FAQ
1.How can I place an order for MAX16016PTBR+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16016PTBR+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 MAX16016PTBR+T reliable?
The price and inventory of MAX16016PTBR+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16016PTBR+T is usually 5 days.
3.What payment methods are accepted for MAX16016PTBR+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16016PTBR+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16016PTBR+T?
MAX16016PTBR+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16016PTBR+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 MAX16016PTBR+T?
For technical support, including MAX16016PTBR+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16016PTBR+T requirements.
6.How does Aetrix verify that MAX16016PTBR+T is sourced from the original manufacturer or authorized distributors?
All MAX16016PTBR+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 MAX16016PTBR+T meets industry standards.
7.What is the process for return or replacement of MAX16016PTBR+T?
All MAX16016PTBR+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16016PTBR+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 MAX16016PTBR+T part is unused and in its original packaging.
Return procedure for MAX16016PTBR+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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