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Analog Devices Inc./Maxim Integrated MAX16016LTBM+T
- Part No.:
- MAX16016LTBM+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX16016LTBM+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,055
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Product details
Overview
MAX16016LTBM+T from Maxim Integrated is a low-power microprocessor supervisory circuit with integrated battery-backup switchover, chip-enable (CE) gating, and reset generation for 3.0V systems. It monitors VCC for power-up, brownout, and power-down conditions; provides VCC-to-battery switchover to maintain SRAM/RTC operation during main power loss; and gates CE signals with 1.5ns propagation delay to prevent memory corruption. Designed for industrial control and portable equipment requiring reliable power monitoring.
For engineers reviewing the MAX16016LTBM+T datasheet, MAX16016LTBM+T pinout, MAX16016LTBM+T application, or MAX16016LTBM+T equivalent, key selection criteria include its 3.08V fixed reset threshold (suffix T), 10-pin TDFN-EP package, 145ms minimum reset timeout, battery-freshness seal, and push-pull RESET output - all critical for fail-safe memory write protection in battery-backed systems.
Technical Context
The MAX16016LTBM+T implements a dual-path power-switching architecture: an internal MOSFET connects VCC to OUT during normal operation, and switches to BATT when VCC falls below 3.08V and VBATT > VCC. Its reset logic combines voltage monitoring, debounced manual reset (MR), and watchdog timer (1.2s timeout) with independent assertion of RESET on any fault condition.
It integrates a dedicated low-line comparator (LL) with threshold ~2.5% above reset threshold for early-warning NMI generation, plus PFI/PFO for external power-fail detection down to 0.6V. Battery-related indicators - BATTON (active-high battery-on), BATTOK (battery-OK), and BATT_TEST (periodic test pulse) - enable full backup-system health monitoring without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V (typical), fixed for 3.0V systems - ensures deterministic reset initiation before SRAM data retention fails. |
| Reset Timeout Period | 145ms (min), 215ms (typ) - guarantees sufficient hold time for µP initialization and memory stabilization after power recovery. |
| Supply Current | 5µA (typ) at VCC = 5.5V; 0.25µA in battery-backup mode - enables multi-year operation on coin-cell batteries. |
| VCC-to-OUT On-Resistance | 2.6Ω (min) at VCC = 1.91V, IOUT = 10mA - minimizes voltage drop and power loss during main-supply operation. |
| Battery Switchover Threshold | VCC rising: VCC − VBATT ≥ 0.1 × VCC; VCC falling: VCC − VBATT ≤ 0mV - prevents oscillation during transition and ensures clean handover. |
| CEIN-to-CEOUT Propagation Delay | 1.5ns (typ) - supports high-speed µP/DSP interfaces without timing violation in CE-gated memory access. |
| Operating Temperature Range | −40°C to +85°C - qualified for industrial and automotive-adjacent embedded applications. |
Pinout & Package
MAX16016LTBM+T is housed in a 10-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) connected internally to GND. The compact footprint supports high-density PCB layouts while enabling efficient thermal dissipation via the EP.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Main supply input | Accepts 1.53V–5.5V; powers internal circuitry and drives RESET/PFO outputs; requires 0.1µF bypass to GND. |
| 2 BATT | Backup battery input | Connects to coin cell or supercap; supplies OUT during VCC failure; monitored for freshness and OK status. |
| 3 MR | Manual reset input | Active-low, internally pulled up to VCC (30kΩ); initiates reset on logic-low pulse; debounced internally. |
| 4 PFI | Power-fail comparator input | Monitors external voltage divider; triggers PFO when input falls below 0.590V (typ); referenced to internal 0.6V threshold. |
| 5 WDI | Watchdog timer input | Edge-sensitive; resets watchdog on rising/falling edge; timeout = 1.235s (typ); disabled if left floating. |
| 6 BATTON | Battery-on indicator | Active-high open-drain output; asserts high only when device is in battery-backup mode (VCC < VTH and VBATT > VCC). |
| 7 PFO | Power-fail comparator output | Active-low open-drain; asserts low when PFI input drops below VPFT; used for system-level power-fail signaling. |
| 8 GND | Ground reference | Primary return path; EP must be soldered to large ground plane for thermal and electrical integrity. |
| 9 RESET | Reset output | Active-low push-pull; asserts during VCC brownout, MR activation, or watchdog timeout; drives µP reset pin directly. |
| 10 OUT | Switched output | Delivers regulated VCC or BATT to SRAM/RTC; automatically selects source based on voltage and reset state; bypass with ≥0.1µF capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Battery freshness seal | Prevents premature discharge during storage by isolating BATT until first power-up; extends shelf life of backup power source. |
| On-board CE gating | Hardware-enforced write protection: CEIN-to-CEOUT path disables during reset, eliminating need for external logic or software intervention. |
| Low-line comparator (LL) | Provides early warning (2.5% above reset threshold) to trigger nonmaskable interrupt for orderly shutdown before reset occurs. |
| UL® certification (IEC 60950-1) | Validated safety compliance for end-equipment in industrial and commercial applications without additional system-level certification burden. |
| 1.5ns CE propagation delay | Enables use with high-speed processors (e.g., ARM Cortex-M7, DSPs) without violating CE setup/hold timing in memory subsystems. |
Applications
| Real-Time Clock (RTC) Backup | Industrial CMOS Memory Protection |
|---|---|
|
Use Scenario: Maintaining timekeeping and calendar data in GPS modules during vehicle ignition-off periods or grid outages. IC Role / Device Role / Timing Role: Supervisory controller that switches RTC power from main rail to backup battery and asserts RESET to halt writes during voltage instability. Use Value: Guarantees uninterrupted RTC operation for >10 years on CR2032; eliminates time drift and data loss during brownouts. |
Use Scenario: Protecting configuration registers and calibration data in programmable logic controllers (PLCs) during factory power fluctuations. IC Role / Device Role / Timing Role: Dual-role supervisor: monitors VCC for reset, gates CE signal to SRAM to block writes during power collapse. Use Value: Prevents memory corruption without firmware changes; reduces field failures caused by partial writes during undervoltage events. |
| Point-of-Sale Terminal Data Retention | Portable Medical Device Memory Safety |
|
Use Scenario: Preserving transaction logs and tax tables in retail terminals during battery swaps or AC adapter disconnection. IC Role / Device Role / Timing Role: Power sequencer and memory protector: manages VCC/BATT handover, asserts RESET, and holds CE inactive during switchover. Use Value: Ensures atomic write completion before power loss; meets PCI-DSS requirements for non-volatile data integrity. |
Use Scenario: Safeguarding patient history and sensor calibration in handheld ECG monitors operating on rechargeable Li-ion cells. IC Role / Device Role / Timing Role: Fault-tolerant supervisor: monitors main supply, detects battery degradation via BATTOK, and initiates graceful shutdown via LL-triggered NMI. Use Value: Complies with IEC 62304 Class B software safety requirements by eliminating uncontrolled memory writes during power transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16020ATEZ+ | 16-pin TQFN; includes CEIN/CEOUT gating, LL output, and BATT_TEST; same 3.08V reset threshold (suffix T) | Supports higher pin-count designs requiring explicit low-line warning and periodic battery self-test | Select when CE gating, early brownout warning (LL), and automated battery health verification are required alongside reset supervision. |
| TPS3808G33DBVR | Single-function reset IC (no battery switchover, no CE gating, no BATTOK/BATTON); 3.08V threshold; SOT-23-6 package | Limited to basic reset generation in space-constrained, cost-sensitive applications without backup power needs | Choose only if battery backup, memory write protection, and multi-output supervision are unnecessary - reduces BOM count but sacrifices system resilience. |
Compared with MAX16020ATEZ+, MAX16016LTBM+T offers identical reset behavior and battery management but in a smaller 10-pin TDFN, trading CE/LL/BATT_TEST functionality for footprint reduction. Versus TPS3808G33DBVR, it delivers comprehensive power-fail resilience at the cost of higher integration complexity and package size.
Availability
MAX16016LTBM+T is available at Aetrix Electronics and suitable for industrial control, portable medical devices, and point-of-sale terminals requiring stable component supply across extended product lifecycles.
Supply support for MAX16016LTBM+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, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX16016 belongs to Maxim's µP supervisory product line, engineered specifically to consolidate power monitoring, battery backup control, and memory write protection into a single IC for reliability-critical embedded systems.
FAQ
What is the reset threshold voltage of the MAX16016LTBM+T?
The MAX16016LTBM+T has a fixed reset threshold of 3.08V (typical), corresponding to the "T" suffix in its ordering code. This value is guaranteed over temperature (−40°C to +85°C) with ±3% tolerance, making it ideal for supervising 3.0V nominal systems where deterministic reset timing is essential for memory data integrity.
Does the MAX16016LTBM+T support battery backup for SRAM applications?
Yes, the MAX16016LTBM+T actively manages battery backup for SRAM. When VCC falls below 3.08V and VBATT exceeds VCC, it automatically switches the OUT pin from VCC to BATT. Its low 0.25µA battery-backup current (IBATT) enables multi-year operation on standard coin cells, and BATTON output confirms active backup mode.
Can the MAX16016LTBM+T replace the MAX16020 or MAX16021 in existing designs?
No - the MAX16016LTBM+T is not a drop-in replacement for MAX16020/MAX16021. It lacks CEIN/CEOUT pins, LL output, BATT_TEST, and the second RESET variant. Its 10-pin TDFN pinout and functional set differ fundamentally; redesign is required to migrate from MAX16020/MAX16021 to MAX16016LTBM+T.
What is the purpose of the battery freshness seal in the MAX16016LTBM+T?
The battery freshness seal in the MAX16016LTBM+T electrically isolates the BATT pin until the device receives its first VCC power-up. This prevents parasitic discharge during long-term storage, preserving battery capacity and extending shelf life - critical for medical and industrial equipment with multi-year deployment cycles before commissioning.
How does the MAX16016LTBM+T handle manual reset assertion and release?
The MAX16016LTBM+T features a debounced MR input with internal 30kΩ pullup. Pulling MR low asserts RESET immediately; RESET remains asserted for the full reset timeout period (≥145ms) after MR returns high. No external RC network is needed, simplifying board design while ensuring noise-immune reset initiation in electrically noisy environments.
MAX16016LTBM+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:
- 4.38V
- Output:
- Push-Pull, Totem Pole
- 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)
MAX16016LTBM+T FAQ
1.How can I place an order for MAX16016LTBM+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16016LTBM+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 MAX16016LTBM+T reliable?
The price and inventory of MAX16016LTBM+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16016LTBM+T is usually 5 days.
3.What payment methods are accepted for MAX16016LTBM+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16016LTBM+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16016LTBM+T?
MAX16016LTBM+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16016LTBM+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 MAX16016LTBM+T?
For technical support, including MAX16016LTBM+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16016LTBM+T requirements.
6.How does Aetrix verify that MAX16016LTBM+T is sourced from the original manufacturer or authorized distributors?
All MAX16016LTBM+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 MAX16016LTBM+T meets industry standards.
7.What is the process for return or replacement of MAX16016LTBM+T?
All MAX16016LTBM+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16016LTBM+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 MAX16016LTBM+T part is unused and in its original packaging.
Return procedure for MAX16016LTBM+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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