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Analog Devices Inc./Maxim Integrated MAX16016PTBZ+T
- Part No.:
- MAX16016PTBZ+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX16016PTBZ+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,861
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Product details
Overview
MAX16016PTBZ+T from Maxim Integrated is a low-power microprocessor supervisory circuit with integrated battery-backup switchover, chip-enable (CE) gating, and power-fail monitoring. It provides active-low reset output, 145ms minimum timeout, 1.2µA supply current, and operates from 1.53V to 5.5V to protect SRAM/RTC in brownout conditions. Used in GPS modules and point-of-sale terminals for reliable memory write protection during main power loss.
For engineers reviewing the MAX16016PTBZ+T datasheet, MAX16016PTBZ+T pinout, MAX16016PTBZ+T application, or MAX16016PTBZ+T equivalent, key selection criteria include its fixed 2.243V–2.425V reset threshold (suffix Z), 10-pin TDFN-EP package, battery-freshness seal, and CE gating capability - all critical for industrial backup-power integrity and memory safety design.
Technical Context
The MAX16016PTBZ+T implements a dual-path power-switching architecture: VCC-to-OUT connection during normal operation and automatic BATT-to-OUT switchover when VCC falls below both reset threshold and VBATT. Its internal MOSFET-based switchover ensures <0.55µA standby battery drain at VBATT = 3V and VCC = 0V.
It integrates four core supervisory functions: µP reset generation with 20µs falling-edge delay and 145–285ms timeout; power-fail detection via PFI input referenced to 0.590V ±30mV; debounced manual reset with 30kΩ internal pullup; and battery status signaling via BATTON and BATTOK outputs - all operating across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.243V (min) to 2.425V (max); precise brownout detection for 2.5V systems with ±1.5% typical accuracy over temperature |
| Supply Current | 3.4µA (typ) at VCC = 5.5V; enables ultra-low-power operation in always-on backup circuits |
| Battery-Backup Current | 0.25µA (typ) at VCC = 0V; minimizes battery depletion during extended main-power outages |
| Reset Timeout Period | 145ms (min) to 285ms (max); guarantees sufficient hold time for µP initialization and memory stabilization |
| VCC-to-OUT On-Resistance | 2.6Ω (typ) at VCC = 1.91V, IOUT = 10mA; ensures low-voltage drop and minimal power loss during main-supply operation |
| Operating Temperature | –40°C to +85°C; fully specified for industrial and embedded environments without derating |
| Package | 10-pin TDFN-EP (3mm × 3mm); exposes thermal pad for enhanced heat dissipation in compact layouts |
Pinout & Package
MAX16016PTBZ+T uses a 10-pin TDFN-EP (3mm × 3mm, 0.5mm pitch) with exposed pad (EP) internally connected to GND. Thermal resistance θJA = 41°C/W supports reliable operation up to 70°C ambient without forced airflow.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Main supply input | Accepts 1.53V–5.5V; bypassed with 0.1µF capacitor to GND for noise immunity and transient response |
| 2 BATT | Backup battery input | Connects to lithium or coin-cell battery; enables automatic switchover when VCC drops below reset threshold and VBATT > VCC |
| 3 MR | Manual reset input | Active-low; internally pulled up to VCC via 30kΩ resistor; triggers reset on logic-low pulse ≥120ns |
| 4 PFI | Power-fail comparator input | Monitors external voltage divider; asserts PFO when input falls below 0.590V ±30mV hysteresis |
| 5 WDI | Watchdog timer input | Edge-sensitive; resets internal watchdog on rising/falling transitions; timeout = 1.235s (typ) |
| 6 BATTON | Battery-on indicator | Active-high open-drain output; signals battery-backup mode activation to system controller |
| 7 PFO | Power-fail output | Active-low open-drain; asserts when PFI input falls below VPFT; used for early warning of supply collapse |
| 8 GND | Ground reference | Primary return path; EP must be soldered to large ground plane for thermal and electrical stability |
| 9 RESET | Reset output | Active-low push-pull; drives µP reset pin directly; VOL ≤0.3V at ISINK = 3.2mA |
| 10 OUT | Switched output | Delivers regulated VCC or BATT to load; connects to BATT only when RESET is asserted and VBATT > VCC |
Key Features
| Feature | Design Value |
|---|---|
| Battery freshness seal | Prevents premature battery discharge before first use via internal leakage control (<20nA at VBATT = 5.5V) |
| On-board CE gating | Not applicable to MAX16016 - CEIN/CEOUT functionality is exclusive to MAX16020/MAX16021 variants |
| UL® certification | Complies with IEC 60950-1 for safety-critical industrial and commercial equipment |
| Low-line indicator (LL) | Not implemented in MAX16016 - LL output is available only on MAX16020/MAX16021 |
| Debounced manual reset | Internal 30kΩ pullup and 100ns glitch immunity eliminate need for external RC debounce circuitry |
| Watchdog timer | 1.235s (typ) timeout with edge-triggered clear; prevents firmware lockup without software intervention |
Applications
| GPS Module Power Management | Point-of-Sale Memory Protection |
|---|---|
|
Use Scenario: Maintains RTC and configuration memory during vehicle ignition cycling or battery disconnection. IC Role / Device Role / Timing Role: Supervisory circuit providing VCC/BATT switchover, active-low reset, and battery-status signaling. Use Value: Prevents data corruption in GPS log buffers and real-time clock registers during 100ms–500ms main-power interruptions. |
Use Scenario: Safeguards transaction logs and firmware state in retail terminals during AC power flicker or UPS transition. IC Role / Device Role / Timing Role: System monitor generating reset pulse and disabling memory writes via CE gating (not applicable to MAX16016; uses PFO/RESET coordination instead). Use Value: Ensures EEPROM/SRAM integrity by asserting RESET before VCC drops below 2.3V and holding it for ≥145ms. |
| Industrial RTC Backup | Portable Medical Device Power Sequencing |
|
Use Scenario: Powers real-time clock and nonvolatile registers in programmable logic controllers during factory mains failure. IC Role / Device Role / Timing Role: Battery switchover controller with BATTON indication and ultra-low IBATT (0.25µA typ). Use Value: Extends CR2032 battery life to >5 years in standby while guaranteeing RTC continuity across –40°C to +85°C. |
Use Scenario: Manages power sequencing and fault recovery in handheld diagnostic tools with Li-ion backup. IC Role / Device Role / Timing Role: Dual-supply supervisor detecting brownout, initiating orderly shutdown via PFO/NMI, and asserting RESET. Use Value: Enables deterministic firmware save-and-halt within 200ms of VCC droop onset, preventing sensor calibration loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16020PTEZ+ | 16-pin TQFN; adds CEIN/CEOUT gating (1.5ns propagation delay) and LL output; same Z-suffix reset threshold range | Required where CMOS memory write-protection during brownout is mandatory; supports higher pin-count designs | Select MAX16020PTEZ+ when CE gating and low-line warning are needed; not pin-compatible with MAX16016PTBZ+T |
| TPS3808G33DBVR | TI device; 3.3V fixed reset threshold; no battery switchover or BATTOK/BATTON outputs; 350ms timeout | Limited to single-supply monitoring; unsuitable for RTC/battery-backed memory systems | Choose TPS3808G33DBVR only for basic 3.3V reset supervision without backup power management |
Compared with MAX16016PTBZ+T, MAX16020PTEZ+ adds hardware-level memory write protection but requires PCB redesign due to 16-pin TQFN layout and different pin mapping; TPS3808G33DBVR offers lower cost and simpler integration but lacks battery-handling features essential for persistent memory applications.
Availability
MAX16016PTBZ+T is available at Aetrix Electronics and suitable for GPS systems, point-of-sale terminals, and industrial RTC modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX16016PTBZ+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 in industrial, automotive, and communications markets.
The MAX16016PTBZ+T belongs to Maxim's µP supervisory product line, engineered specifically for high-reliability memory backup and brownout resilience in space-constrained embedded systems.
FAQ
What is the reset threshold voltage range for MAX16016PTBZ+T?
The MAX16016PTBZ+T has a reset threshold range of 2.243V (min) to 2.425V (max), corresponding to the "Z" suffix in its part number. This range is optimized for 2.5V systems and is guaranteed over the full –40°C to +85°C operating temperature range with ±1.5% typical accuracy.
Does MAX16016PTBZ+T support chip-enable (CE) gating like MAX16020/MAX16021?
No, MAX16016PTBZ+T does not include CEIN/CEOUT pins or internal CE gating functionality. That feature is exclusive to the MAX16020 and MAX16021 variants. MAX16016PTBZ+T relies on RESET assertion and PFO signaling to coordinate memory protection in external logic.
What is the maximum battery voltage supported at the BATT pin of MAX16016PTBZ+T?
The MAX16016PTBZ+T supports battery voltages up to 6V at the BATT pin, as specified in Absolute Maximum Ratings. However, optimal switchover performance and low standby current are achieved with standard 3V lithium or 3.6V rechargeable batteries.
How does the battery freshness seal function in MAX16016PTBZ+T?
The battery freshness seal in MAX16016PTBZ+T limits initial battery leakage to <20nA at VBATT = 5.5V, preventing premature discharge during storage or before first power-up. This extends shelf life and ensures full battery capacity is available at system deployment.
Can MAX16016PTBZ+T operate with VCC = 1.62V?
Yes, MAX16016PTBZ+T operates down to VCC = 1.53V. At VCC = 1.62V, it delivers full functionality including reset generation, PFI monitoring, and battery switchover, with supply current of 1.2µA (typ) and reset threshold accuracy maintained per datasheet specifications.
MAX16016PTBZ+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- 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)
MAX16016PTBZ+T FAQ
1.How can I place an order for MAX16016PTBZ+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16016PTBZ+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 MAX16016PTBZ+T reliable?
The price and inventory of MAX16016PTBZ+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16016PTBZ+T is usually 5 days.
3.What payment methods are accepted for MAX16016PTBZ+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16016PTBZ+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16016PTBZ+T?
MAX16016PTBZ+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16016PTBZ+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 MAX16016PTBZ+T?
For technical support, including MAX16016PTBZ+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16016PTBZ+T requirements.
6.How does Aetrix verify that MAX16016PTBZ+T is sourced from the original manufacturer or authorized distributors?
All MAX16016PTBZ+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 MAX16016PTBZ+T meets industry standards.
7.What is the process for return or replacement of MAX16016PTBZ+T?
All MAX16016PTBZ+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16016PTBZ+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 MAX16016PTBZ+T part is unused and in its original packaging.
Return procedure for MAX16016PTBZ+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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