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Analog Devices Inc./Maxim Integrated MAX16016LTBW+T
- Part No.:
- MAX16016LTBW+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX16016LTBW+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,480
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Product details
Overview
MAX16016LTBW+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 - designed for write-protecting SRAM during brownout in RTC and portable memory systems.
For engineers reviewing the MAX16016LTBW+T datasheet, MAX16016LTBW+T pinout, MAX16016LTBW+T application, or MAX16016LTBW+T equivalent, key selection criteria include its fixed 2.991V–3.239V reset threshold (suffix 'T'), 10-pin TDFN-EP package, push-pull RESET output, battery-freshness seal, and support for VCC-to-BATT switchover at <0.1×VCC differential.
Technical Context
The MAX16016LTBW+T implements a dual-path power-switching architecture: internal MOSFETs route either VCC or BATT to the OUT pin based on real-time comparison of VCC against reset threshold and VBATT. Its reset generator uses a precision bandgap reference with ±1.5% threshold accuracy over –40°C to +85°C and includes debounced manual reset input with 120ns MR-to-RESET delay.
It integrates a 1.2s watchdog timer with WDI edge-triggered clear, a 0.6V power-fail comparator (PFI/PFO) with 30mV hysteresis, and a low-line (LL) output asserting 2.5% above reset threshold - all powered from OUT to maintain functionality during VCC collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.991V (min) to 3.239V (max); fixed threshold for 3.0V system monitoring with ±1.5% tolerance over temperature. |
| Reset Timeout Period | 145ms (min) to 285ms (max); ensures µP reset pulse meets JEDEC JESD22-A102 reliability requirements. |
| Supply Current | 3.4µA (typ) at VCC = 5.5V; enables >10-year battery life in backup mode for RTC/SRAM applications. |
| Battery-Backup Mode Current | 0.25µA (typ); ultra-low IBATT preserves coin-cell lifetime when main supply fails. |
| VCC-to-OUT On-Resistance | 2.6Ω (typ) at VCC = 1.91V, IOUT = 10mA; minimizes voltage drop during high-current memory access. |
| Operating Temperature | –40°C to +85°C; fully specified for industrial and automotive-adjacent embedded environments. |
| Package | 10-pin TDFN-EP (3mm × 3mm, 0.8mm height); exposed pad improves thermal dissipation and PCB grounding. |
Pinout & Package
MAX16016LTBW+T is housed in a 10-pin TDFN-EP package (3mm × 3mm, 0.8mm height) with exposed pad (EP) internally connected to GND. Thermal resistance θJA = 41°C/W supports operation up to +85°C ambient without forced airflow.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Main supply input | Accepts 1.53V–5.5V; powers internal circuitry and drives RESET/LL outputs; bypass with 0.1µF to GND. |
| 2 BATT | Backup battery input | Connects to coin cell or supercap; enables seamless switchover when VCC falls below reset threshold and VBATT > VCC. |
| 3 MR | Manual reset input | Active-low; internally pulled up to VCC via 30kΩ; triggers reset on falling edge with 120ns propagation delay. |
| 4 PFI | Power-fail comparator input | Monitors external resistive divider; asserts PFO when input falls below 0.590V (typ) with 30mV hysteresis. |
| 5 WDI | Watchdog timer input | Edge-sensitive; clears internal 1.2s (typ) timer on rising/falling transition; left floating to disable watchdog. |
| 6 BATTON | Battery-on indicator | Active-high open-drain output; signals battery-backup mode activation; sinks ≤3.2mA at 0.3V. |
| 7 PFO | Power-fail comparator output | Active-low open-drain; asserts when PFI input drops below VPFT; used for early power-loss warning. |
| 8 GND | Ground reference | Primary return path; EP must be soldered to large ground plane for thermal and EMI performance. |
| 9 RESET | Reset output | Active-low push-pull; asserts during VCC brownout, MR assertion, or watchdog timeout; VOL ≤ 0.3V @ 3.2mA. |
| 10 OUT | Switched output | Drives SRAM VCC rail; automatically selects VCC or BATT source; bypass with ≥0.1µF capacitor to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Battery-freshness seal | 20nA max leakage at VBATT = 5.5V prevents premature coin-cell discharge during long-term storage. |
| VCC/BATT switchover control | Automatic transition at VCC − VBATT ≤ 0.1×VCC ensures glitch-free memory power continuity during brownout. |
| Low-line (LL) early-warning output | Asserts 2.5% above reset threshold (e.g., ~3.07V for 'T' variant) to trigger NMI-driven orderly shutdown before reset. |
| Debounced manual reset | No external RC required; internal 30kΩ pullup and 100ns glitch immunity eliminate switch bounce artifacts. |
| UL® certification | Complies with IEC 60950-1 for end-equipment safety in industrial and consumer applications. |
Applications
| Real-Time Clock (RTC) Backup | SRAM Write Protection |
|---|---|
|
Use Scenario: Maintaining timekeeping and calendar data in GPS modules during vehicle ignition-off periods. IC Role / Device Role / Timing Role: Supervisory controller providing uninterrupted 3.0V power to RTC IC via OUT pin while isolating failed main supply. Use Value: Enables >10-year coin-cell lifetime using 0.25µA battery-backup current and automatic switchover at ≤30mV VCC–VBATT differential. |
Use Scenario: Preventing data corruption in set-top box configuration memory during AC power interruption. IC Role / Device Role / Timing Role: Gating CE signal to SRAM only when VCC is stable; disabling write access during brownout via RESET assertion. Use Value: Eliminates need for external CE logic; guarantees memory integrity with 145ms minimum reset hold time aligned to JEDEC standards. |
| Industrial Control Panel | Portable Medical Monitor |
|
Use Scenario: Ensuring deterministic restart of PLC firmware after brownout in factory automation cabinets. IC Role / Device Role / Timing Role: Generating clean, temperature-stable reset pulse with ±1.5% threshold accuracy across –40°C to +85°C. Use Value: Prevents spurious resets caused by supply ripple; supports reliable operation where 5V/3.3V rails fluctuate under motor load. |
Use Scenario: Preserving patient parameter logs in handheld ECG devices during battery swap or low-voltage events. IC Role / Device Role / Timing Role: Monitoring main Li-ion supply and enabling backup supercap via BATT input while signaling status via BATTON and BATTOK. Use Value: Delivers fail-safe data retention with 1.2µA operating current and battery-test pulse (BATT_TEST not present in MAX16016). |
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; adds CEIN/CEOUT gating, LL, WDO, BATT_TEST; same 'T' reset threshold range (3.010V–3.190V). | Required for systems needing chip-enable protection of high-speed SRAM or early low-line interrupt generation. | Select MAX16020ATEZ+ when CE gating, watchdog output, or low-line warning are mandatory; not pin-compatible with MAX16016LTBW+T. |
| TPS3808G33DBVR | Single-channel supervisor; 3.3V fixed reset; no battery switchover, CE gating, or PFI/PFO; 1.8µA IQ; SOT-23-6. | Suitable only for basic reset-only functions in 3.3V systems without backup power or memory protection needs. | Choose TPS3808G33DBVR for cost-sensitive, space-constrained designs lacking battery backup or advanced supervision features. |
Compared with MAX16020ATEZ+, MAX16016LTBW+T offers identical reset threshold accuracy and lower quiescent current but omits CE gating and low-line output - making it optimal for compact RTC/SRAM backup where those features are unnecessary. Versus TPS3808G33DBVR, it delivers full battery-switchover capability and multi-function supervision at the cost of larger footprint and higher complexity.
Availability
MAX16016LTBW+T is available at Aetrix Electronics and suitable for industrial control panels, portable medical monitors, GPS timing modules, and set-top box memory backup systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MAX16016LTBW+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The MAX16016 series belongs to Maxim's µP supervisory product line, engineered specifically for reliable power sequencing, battery-backed memory retention, and brownout resilience in space- and power-constrained embedded systems.
FAQ
What is the reset threshold voltage range for MAX16016LTBW+T?
The MAX16016LTBW+T has a fixed reset threshold range of 2.991V (minimum) to 3.239V (maximum), corresponding to the 'T' suffix per Table 1a. This is optimized for 3.0V system monitoring with ±1.5% accuracy over –40°C to +85°C, ensuring robust brownout detection without external resistor networks.
Does MAX16016LTBW+T support battery switchover, and what are the conditions?
Yes, MAX16016LTBW+T supports automatic VCC-to-BATT switchover on the OUT pin. Switchover occurs when both conditions are met: VCC falls below the reset threshold (2.991V–3.239V), and VBATT exceeds VCC by at least 0.1×VCC. The device maintains this state until VCC rises above 1.01×VBATT, preventing oscillation during recovery.
What package type and thermal characteristics does MAX16016LTBW+T use?
MAX16016LTBW+T uses a 10-pin TDFN-EP package (3mm × 3mm, 0.8mm height) with exposed pad connected to GND. Its junction-to-ambient thermal resistance (θJA) is 41°C/W, and junction-to-case (θJC) is 9°C/W - enabling reliable operation at full rating up to +85°C ambient with standard PCB copper pour.
How does the manual reset (MR) input function on MAX16016LTBW+T?
The MR input on MAX16016LTBW+T is an active-low, internally pulled-up (30kΩ to VCC) pin. A logic-low pulse ≥100ns triggers RESET assertion for the full 145ms timeout period. Glitch immunity is built-in, and no external debounce components are needed - simplifying board design for front-panel or test-point reset interfaces.
Is MAX16016LTBW+T RoHS-compliant and lead-free?
Yes, MAX16016LTBW+T is RoHS-compliant and lead-free, indicated by the '+' suffix in the part number. It meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is qualified for reflow soldering at peak temperatures up to +260°C, per Maxim's package specifications.
MAX16016LTBW+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:
- 1.67V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 145ms Minimum
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
MAX16016LTBW+T FAQ
1.How can I place an order for MAX16016LTBW+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16016LTBW+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 MAX16016LTBW+T reliable?
The price and inventory of MAX16016LTBW+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16016LTBW+T is usually 5 days.
3.What payment methods are accepted for MAX16016LTBW+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16016LTBW+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16016LTBW+T?
MAX16016LTBW+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16016LTBW+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 MAX16016LTBW+T?
For technical support, including MAX16016LTBW+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16016LTBW+T requirements.
6.How does Aetrix verify that MAX16016LTBW+T is sourced from the original manufacturer or authorized distributors?
All MAX16016LTBW+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 MAX16016LTBW+T meets industry standards.
7.What is the process for return or replacement of MAX16016LTBW+T?
All MAX16016LTBW+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16016LTBW+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 MAX16016LTBW+T part is unused and in its original packaging.
Return procedure for MAX16016LTBW+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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