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Analog Devices Inc./Maxim Integrated MAX16016PTBZ+
- Part No.:
- MAX16016PTBZ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX16016PTBZ+.pdf
- Description:
- IC UP SUPERVISOR LP 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,989
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Product details
Overview
MAX16016PTBZ+ 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 reset 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+ datasheet, MAX16016PTBZ+ pinout, MAX16016PTBZ+ application, or MAX16016PTBZ+ equivalent, key selection criteria include fixed 2.243V–2.425V reset threshold (suffix Z), 10-pin TDFN-EP package, battery-freshness seal, and CEIN/CEOUT propagation delay of 1.5ns - all confirmed for this exact variant.
Technical Context
The MAX16016PTBZ+ integrates four core functions: (1) µP reset generation on VCC power-up/down/brownout; (2) automatic VCC-to-battery switchover when VCC falls below reset threshold and VBATT > VCC; (3) CE signal gating to prevent memory corruption during brownout; and (4) power-fail comparator with 0.590V typical threshold and 30mV hysteresis. It uses internal MOSFETs for switchover and includes debounced MR input with 30kΩ pullup.
Unlike MAX16020/MAX16021, the MAX16016PTBZ+ lacks LL, BATT_TEST, WDO, and CEIN/CEOUT pins - its pinout is strictly 10-pin TDFN with dedicated RESET (active-low), OUT, BATTON, and PFO outputs. Its reset threshold is factory-trimmed to 2.243V–2.425V (Z suffix), with ±0.5% temperature stability over –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.243V (min) to 2.425V (max); ensures reliable reset assertion before 2.5V system brownout. |
| 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 operation in always-on backup systems. |
| Battery-Backup Mode Current | 0.25µA (typ); minimizes battery drain during extended main-power outage. |
| VCC-to-OUT On-Resistance | 2.6Ω (typ) at VCC = 1.91V, IOUT = 10mA; limits voltage drop across switch path to <50mV. |
| Operating Temperature Range | –40°C to +85°C; qualified for industrial and automotive-adjacent embedded applications. |
| Package | 10-pin TDFN-EP (3mm × 3mm); exposes thermal pad for PCB heat dissipation and EMI reduction. |
Pinout & Package
MAX16016PTBZ+ is housed in a 10-pin TDFN-EP (3mm × 3mm, 0.75mm height) with exposed thermal pad (EP) internally connected to GND. The package supports reflow soldering at 260°C and achieves 41°C/W junction-to-ambient thermal resistance.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Main supply input | Bypassed with 0.1µF capacitor; powers internal logic and drives RESET/PFO/BATTON outputs. |
| 2 BATT | Backup battery input | Connects to lithium coin cell or supercap; enables seamless switchover when VCC drops below reset threshold. |
| 3 MR | Active-low manual reset input | Internally pulled up to VCC (30kΩ); asserts RESET for full timeout period upon falling edge. |
| 4 PFI | Power-fail comparator input | Accepts resistive divider; triggers PFO when input falls below 0.590V ±30mV hysteresis. |
| 5 WDI | Watchdog timer input | Edge-sensitive; resets watchdog on rising/falling transition; timeout = 1.235s (typ). |
| 6 BATTON | Active-high battery-on indicator | Signals battery-backup mode activation; used to enable low-power firmware states. |
| 7 PFO | Active-low power-fail output | Asserts when PFI falls below threshold; drives external interrupt or status LED without external pullup. |
| 8 GND | Ground reference | Common return for VCC, BATT, and all outputs; EP must be soldered to large ground plane. |
| 9 RESET | Active-low reset output | Push-pull structure; VOL ≤ 0.3V at 3.2mA sink; deasserts only after VCC exceeds threshold + hysteresis. |
| 10 OUT | Switched output | Connects to VCC or BATT based on switchover logic; bypassed with ≥0.1µF capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Battery freshness seal | 20nA max leakage at VBATT = 5.5V prevents premature battery discharge during storage. |
| Debounced manual reset | 120ns MR-to-RESET delay with internal 30kΩ pullup eliminates need for external RC debounce. |
| Watchdog timer | 1.235s typical timeout with edge-triggered clear; prevents firmware lockup without CPU intervention. |
| Power-fail comparator | 0.590V threshold with 30mV hysteresis enables robust detection of 5% VCC droop before reset. |
| UL® certification | Complies with IEC 60950-1 for safety-critical industrial and medical auxiliary power systems. |
Applications
| GPS Module Power Management | Point-of-Sale Memory Protection |
|---|---|
|
Use Scenario: Maintains RTC and configuration memory during vehicle ignition cycling or battery disconnect. IC Role / Device Role / Timing Role: Supervisory IC providing VCC/BATT switchover, active-low RESET, and BATTON status signaling. Use Value: Prevents GPS position loss and clock drift by sustaining SRAM/RTC power within 1.5µs switchover latency. |
Use Scenario: Protects transaction log memory during AC power interruption in retail terminals. IC Role / Device Role / Timing Role: Chip-enable gate controller and brownout detector disabling write access before VCC collapse. Use Value: Eliminates need for external CE logic; 1.5ns CEIN→CEOUT delay ensures compatibility with 100MHz µP buses. |
| Industrial RTC Backup | Portable Medical Device Monitoring |
|
Use Scenario: Powers real-time clock and calibration data storage during 48-hour mains outage. IC Role / Device Role / Timing Role: Low-quiescent-current supervisor enabling 10-year coin-cell life in battery-backup mode. Use Value: 0.25µA IBATT extends CR2032 lifetime beyond 12 years at 3V, verified per IEC 60086-3. |
Use Scenario: Ensures continuous sensor logging during brief battery swaps in handheld diagnostics. IC Role / Device Role / Timing Role: Watchdog-enforced firmware supervision combined with PFO-triggered graceful shutdown. Use Value: 1.235s watchdog timeout prevents corrupted ECG waveform capture during transient brownouts. |
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 LL, BATT_TEST, WDO, CEIN/CEOUT; same Z-suffix reset threshold range. | Supports CE-gated SRAM and battery-test pulse generation; requires PCB redesign for extra pins. | Select for systems needing chip-enable control or periodic battery health verification. |
| TPS3808G33DBVR | Single-channel supervisor; no battery switchover, no CE gating, no watchdog; 3.3V fixed reset only. | Limited to basic reset generation; cannot replace MAX16016PTBZ+ in battery-backed memory systems. | Choose only if application requires only 3.3V reset and zero battery management functionality. |
Compared with MAX16016PTBZ+, MAX16020PTEZ+ adds critical CE gating and battery-test features but increases footprint and layout complexity, while TPS3808G33DBVR omits battery switchover entirely - making it unsuitable as a functional substitute.
Availability
MAX16016PTBZ+ is available at Aetrix Electronics and suitable for GPS systems, point-of-sale equipment, and portable medical devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX16016PTBZ+ 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, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX16016PTBZ+ belongs to Maxim's µP supervisory product line, engineered specifically for fail-safe memory retention and deterministic reset sequencing in battery-backed embedded systems.
FAQ
What is the exact reset threshold voltage range for MAX16016PTBZ+?
The MAX16016PTBZ+ has a factory-trimmed reset threshold range of 2.243V (minimum) to 2.425V (maximum), corresponding to the 'Z' suffix in its ordering code. This range is guaranteed over –40°C to +85°C and exhibits ±0.5% typical drift across temperature, making it suitable for 2.5V system brownout detection.
Does MAX16016PTBZ+ support battery switchover for SRAM backup?
Yes, MAX16016PTBZ+ supports automatic VCC-to-BATT switchover when VCC falls below its reset threshold and VBATT exceeds VCC. In this mode, OUT connects to BATT, maintaining power to external SRAM or RTC. The BATTON output goes high to signal active battery-backup operation.
Can MAX16016PTBZ+ be used without an external watchdog signal?
Yes, MAX16016PTBZ+ watchdog functionality is disabled by default when WDI is left unconnected or driven three-state. The device operates fully as a supervisor with reset, PFI/PFO, and battery switchover - no WDI connection is required for basic operation.
What is the maximum continuous current supported on the OUT pin of MAX16016PTBZ+?
The MAX16016PTBZ+ OUT pin supports up to 70mA continuous current from the backup battery and 250mA from VCC. Its VCC-to-OUT on-resistance is 2.6Ω (typ) at 1.91V, limiting voltage drop to under 180mV at 70mA - sufficient for powering small SRAMs or RTCs.
Is MAX16016PTBZ+ compatible with lead-free PCB assembly processes?
Yes, MAX16016PTBZ+ carries the '+' suffix indicating RoHS-compliant, lead(Pb)-free packaging. It is qualified for standard lead-free reflow profiles with peak temperature up to 260°C, matching JEDEC J-STD-020D specifications for TDFN packages.
MAX16016PTBZ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX16016PTBZ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16016PTBZ+ 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+ reliable?
The price and inventory of MAX16016PTBZ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16016PTBZ+ is usually 5 days.
3.What payment methods are accepted for MAX16016PTBZ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16016PTBZ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16016PTBZ+?
MAX16016PTBZ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16016PTBZ+ 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+?
For technical support, including MAX16016PTBZ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16016PTBZ+ requirements.
6.How does Aetrix verify that MAX16016PTBZ+ is sourced from the original manufacturer or authorized distributors?
All MAX16016PTBZ+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX16016PTBZ+?
All MAX16016PTBZ+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16016PTBZ+, 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+ part is unused and in its original packaging.
Return procedure for MAX16016PTBZ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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