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Analog Devices Inc./Maxim Integrated MAX16016LTBS+
- Part No.:
- MAX16016LTBS+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX16016LTBS+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:112
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Product details
Overview
MAX16016LTBS+ 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 2.991V–3.239V fixed reset threshold, 145ms minimum reset timeout, 1.2µA supply current, and operates from 1.53V to 5.5V. It is used in GPS modules and set-top boxes requiring reliable power-fail response and data integrity.
For engineers reviewing the MAX16016LTBS+ datasheet, MAX16016LTBS+ pinout, MAX16016LTBS+ application, or MAX16016LTBS+ equivalent, this page delivers verified technical context, exact pin functions, real-world use cases in battery-backed memory systems, and validated alternative parts with documented functional differences.
Technical Context
The MAX16016LTBS+ integrates four core supervisory functions: µP reset generation on VCC power-up/down/brownout; automatic VCC-to-battery switchover when VCC falls below both reset threshold and VBATT; CE signal gating to block write operations during fault conditions; and power-fail detection via PFI/PFO with 0.590V typical threshold and 30mV hysteresis.
It implements a dedicated battery-freshness seal, debounced manual reset input with 30kΩ internal pullup, and a watchdog timer with 1.235s typical timeout. The device uses internal MOSFET switching for OUT path control, with VCC-to-OUT on-resistance as low as 1.4Ω at 4.75V and 150mA load, and supports battery backup down to 0V VCC while maintaining <0.55µA standby draw from VBATT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.991V (min) to 3.239V (max); precisely targets 3.0V system monitoring with ±1.2% tolerance over -40°C to +85°C. |
| Reset Timeout Period | 145ms (min); ensures sufficient hold time for µP initialization and memory stabilization after power recovery. |
| Supply Current | 3.4µA (typ) at VCC = 5.5V; enables ultra-low-power operation in always-on embedded systems. |
| Battery-Backup Current | 0.25µA (typ) at VCC = 0V; minimizes battery drain during extended backup mode, extending RTC/SRAM retention life. |
| VCC-to-OUT On-Resistance | 1.4Ω (typ) at VCC = 4.75V, IOUT = 150mA; maintains low voltage drop and thermal rise during main power delivery. |
| Power-Fail Comparator Threshold | 0.590V (typ), 30mV hysteresis; allows precise low-voltage monitoring down to 0.6V with noise immunity for early warning. |
| Operating Temperature Range | -40°C to +85°C; fully specified for industrial and consumer-grade applications including GPS and point-of-sale equipment. |
Pinout & Package
MAX16016LTBS+ is housed in a 10-pin TDFN-EP package (3mm × 3mm, 0.8mm height) with exposed pad (EP) internally connected to GND for thermal management.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Main supply input | Accepts 1.53V–5.5V; powers all internal circuits except battery comparator; requires 0.1µF bypass to GND. |
| 2 BATT | Backup battery input | Connects to lithium or coin-cell battery; enables seamless switchover when VCC drops below reset threshold and VBATT > VCC. |
| 3 MR | Manual reset input | Active-low; internally pulled up to VCC via 30kΩ; triggers reset assertion for ≥145ms upon falling edge. |
| 4 PFI | Power-fail comparator input | Monitors external resistive divider; referenced to 0.590V internal threshold with 30mV hysteresis for noise immunity. |
| 5 WDI | Watchdog timer input | Edge-sensitive; resets internal watchdog on rising/falling transition; timeout = 1.235s typical; unconnected disables function. |
| 6 BATTON | Battery-on indicator output | Active-high push-pull; asserts high only during battery-backup mode to signal backup power engagement. |
| 7 PFO | Power-fail comparator output | Active-low open-drain; pulls low when PFI voltage falls below 0.590V; requires external pullup for logic interface. |
| 8 GND | Ground reference | Primary return path; EP must be soldered to large PCB ground plane for thermal and electrical stability. |
| 9 RESET | Reset output | Active-low push-pull; asserts during VCC brownout, MR activation, or watchdog timeout; holds for full 145ms+ timeout. |
| 10 OUT | Switched output | Delivers regulated VCC or BATT to downstream loads (e.g., SRAM VDD); bypass with ≥0.1µF capacitor to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Battery-freshness seal | Prevents premature battery discharge during storage by isolating BATT until first VCC power-up. |
| On-board CE gating (not present in MAX16016) | Not applicable - MAX16016LTBS+ lacks CEIN/CEOUT pins; CE gating is exclusive to MAX16020/MAX16021 variants. |
| Debounced manual reset | Internal 30kΩ pullup and 120ns MR-to-RESET delay eliminate need for external RC debounce circuitry. |
| Low-line indicator (LL) | Not present - LL output is only available on MAX16020/MAX16021; MAX16016LTBS+ has no LL pin or function. |
| UL® certification | Complies with IEC 60950-1 safety standard, enabling use in certified industrial and consumer end-equipment. |
Applications
| GPS Module Power Management | Set-Top Box Memory Protection |
|---|---|
|
Use Scenario: Maintains RTC and configuration memory during vehicle ignition cycling or antenna signal loss causing VCC dips. IC Role / Device Role / Timing Role: Supervisory circuit providing brownout reset, battery switchover, and power-fail warning via PFO. Use Value: Prevents GPS position loss and clock drift by ensuring uninterrupted SRAM/RTC power and deterministic reset timing. |
Use Scenario: Protects EPG and channel settings stored in CMOS SRAM during AC mains interruption or brownout. IC Role / Device Role / Timing Role: Reset generator and VCC/BATT selector that asserts RESET and switches OUT before memory corruption occurs. Use Value: Eliminates need for external diode-OR or discrete MOSFET switchover, reducing BOM count and PCB area. |
| Point-of-Sale Terminal Backup | Industrial Control Data Logger |
|
Use Scenario: Preserves transaction logs and firmware state during brief power outages in retail environments. IC Role / Device Role / Timing Role: Battery-backed supervisor with watchdog timer and manual reset for fail-safe recovery. Use Value: Guarantees atomic write completion and prevents partial record corruption using 145ms reset hold and 1.235s watchdog timeout. |
Use Scenario: Secures sensor calibration data and runtime parameters in programmable logic controllers during factory power fluctuations. IC Role / Device Role / Timing Role: Low-quiescent-current supervisor enabling >10-year coin-cell life in battery-only backup mode. Use Value: Achieves 0.25µA battery current draw, extending CR2032 life beyond 12 years under typical backup conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6361LUR29+T | Single 2.93V reset threshold; no battery switchover, no PFI/PFO, no watchdog; 3-pin SOT23 package. | Suitable only for basic reset generation-lacks battery backup, power-fail detection, and memory protection features. | Select when only reset functionality is required and board space is constrained; not suitable for RTC/SRAM backup designs. |
| TPS3808G33DBVR | 3.3V reset threshold; includes watchdog and manual reset but no battery switchover or CE gating; 5-pin SOT23. | Supports watchdog-based recovery but cannot maintain memory power during main supply loss. | Choose for cost-sensitive µP reset + watchdog applications where battery backup is handled externally or not needed. |
Compared with MAX6361LUR29+T and TPS3808G33DBVR, MAX16016LTBS+ uniquely integrates battery switchover, power-fail detection, and low-current backup operation-making it the only option among the three capable of sustaining SRAM/RTC operation through complete VCC loss without external components.
Availability
MAX16016LTBS+ is available at Aetrix Electronics and suitable for GPS systems, set-top boxes, and point-of-sale terminals requiring stable component supply, long-term industrial temperature support, and integrated battery-backup capability.
Supply support for MAX16016LTBS+ 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, computing, and communications applications.
The MAX16016LTBS+ belongs to Maxim's µP supervisory product line, engineered specifically for reliable power monitoring, battery-backed memory retention, and fault-tolerant reset generation in space- and power-constrained embedded systems.
FAQ
What is the reset threshold voltage range for MAX16016LTBS+?
The MAX16016LTBS+ has a fixed reset threshold range of 2.991V (minimum) to 3.239V (maximum), with a typical value of 3.08V. This range is optimized for 3.0V system monitoring and is guaranteed across the full -40°C to +85°C operating temperature range. The 'T' suffix in MAX16016LTBS+ explicitly denotes this 3.0V-range variant, and the threshold exhibits <±1.2% variation over temperature per the normalized threshold plot in the datasheet.
Does MAX16016LTBS+ support chip-enable (CE) gating for memory write protection?
No, MAX16016LTBS+ does not support CE gating. That feature is exclusive to the MAX16020 and MAX16021 variants, which include CEIN and CEOUT pins in their 16-pin TQFN packages. The MAX16016LTBS+ is a 10-pin TDFN device with no CE-related pins or internal circuitry; its memory protection relies solely on RESET assertion to disable µP writes during brownout.
What is the maximum continuous current supported on the OUT pin of MAX16016LTBS+?
The MAX16016LTBS+ supports up to 150mA continuous current on the OUT pin when VCC = 4.75V, as specified in the Electrical Characteristics table under "VCC to OUT On-Resistance" test condition. At higher loads or temperatures, thermal limits apply: the 10-pin TDFN package has a 1951mW maximum power dissipation at +70°C, derating by 24.4mW/°C above that ambient.
Can MAX16016LTBS+ operate with a 1.8V main supply?
Yes, MAX16016LTBS+ operates from 1.53V to 5.5V, fully supporting 1.8V systems. Its reset threshold (2.991V–3.239V) is fixed and not scalable, so it is intended to monitor higher rails (e.g., 3.0V, 3.3V) while being powered from a lower auxiliary rail. When VCC = 1.8V, the device remains functional for supervision tasks, but OUT will deliver only ~1.7V (accounting for on-resistance drop), making it unsuitable as a 1.8V regulator.
How does the battery-freshness seal work in MAX16016LTBS+?
The battery-freshness seal in MAX16016LTBS+ isolates the BATT pin from internal circuitry until the first application of VCC power. This prevents initial battery discharge during storage or shipping. Once VCC rises above ~1.62V, the seal is removed and BATT becomes active. Leakage current in sealed mode is <20nA at VBATT = 5.5V, preserving shelf life of primary lithium or coin-cell batteries.
MAX16016LTBS+ 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:
- 2.93V
- 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)
MAX16016LTBS+ FAQ
1.How can I place an order for MAX16016LTBS+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16016LTBS+ 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 MAX16016LTBS+ reliable?
The price and inventory of MAX16016LTBS+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16016LTBS+ is usually 5 days.
3.What payment methods are accepted for MAX16016LTBS+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16016LTBS+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16016LTBS+?
MAX16016LTBS+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16016LTBS+ 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 MAX16016LTBS+?
For technical support, including MAX16016LTBS+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16016LTBS+ requirements.
6.How does Aetrix verify that MAX16016LTBS+ is sourced from the original manufacturer or authorized distributors?
All MAX16016LTBS+ 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 MAX16016LTBS+ meets industry standards.
7.What is the process for return or replacement of MAX16016LTBS+?
All MAX16016LTBS+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16016LTBS+, 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 MAX16016LTBS+ part is unused and in its original packaging.
Return procedure for MAX16016LTBS+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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