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Analog Devices Inc./Maxim Integrated MAX16016LTBL+
- Part No.:
- MAX16016LTBL+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX16016LTBL+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:115
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Product details
Overview
MAX16016LTBL+ from Maxim Integrated is a low-power microprocessor supervisory circuit that monitors VCC supply voltage, manages battery-backup switchover to preserve SRAM/RTC data during power loss, and provides chip-enable (CE) gating for memory write protection. It features a 4.508V–4.906V fixed reset threshold, 145ms minimum reset timeout, 1.2µA supply current, and operates from 1.53V to 5.5V in industrial temperature range (–40°C to +85°C). Used in GPS modules and set-top boxes requiring reliable brownout response.
For engineers reviewing the MAX16016LTBL+ datasheet, MAX16016LTBL+ pinout, MAX16016LTBL+ application, or MAX16016LTBL+ equivalent, key selection criteria include its push-pull RESET output, integrated battery-freshness seal, 1.5ns CEIN-to-CEOUT propagation delay (shared with MAX16020/MAX16021), and UL® certification to IEC 60950-1 - all critical for fail-safe memory retention in portable/battery-powered systems.
Technical Context
The MAX16016LTBL+ implements a dual-path power-switching architecture: when VCC falls below its 4.63V typical reset threshold and VBATT > VCC, it disconnects VCC from OUT and connects BATT to OUT within microseconds, maintaining power to attached CMOS memory. Its internal watchdog timer (1.2s typical timeout) triggers reset if WDI remains static beyond threshold, while the PFI comparator monitors auxiliary voltages down to 0.6V with 30mV hysteresis.
Unlike MAX16020/MAX16021, the MAX16016LTBL+ lacks CEIN/CEOUT pins and LL output - confirmed by its 10-pin TDFN package and Pin Description table. It supports only active-low RESET (push-pull), battery-OK (BATTOK), battery-on (BATTON), and power-fail (PFO) outputs, with no watchdog output (WDO) or battery-test (BATT_TEST) functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63V typical (L-suffix); ensures reliable reset assertion before 5V system brownout. |
| Reset Timeout Period | 145ms minimum; guarantees µP holds reset long enough for full power stabilization. |
| Supply Current | 1.2µA at VCC = 5.5V; enables multi-year operation on coin-cell backup without significant drain. |
| Battery-Backup Mode Current | 0.25µA max at VCC = 0V; minimizes battery depletion during extended power loss. |
| VCC-to-OUT On-Resistance | 2.6Ω typical at VCC = 1.91V, IOUT = 10mA; limits voltage drop and self-heating under load. |
| Operating Temperature | –40°C to +85°C; validated for industrial and automotive cabin environments. |
| Package | 10-pin TDFN-EP (3mm × 3mm); exposes thermal pad for PCB heat dissipation in space-constrained designs. |
Pinout & Package
MAX16016LTBL+ uses a 10-pin TDFN-EP package with exposed pad (EP) internally connected to GND. Thermal pad must be soldered to a large ground plane for optimal thermal performance (θJA = 41°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Primary supply input | Bypass with 0.1µF capacitor; powers internal circuitry and drives RESET/PFO/BATTOK outputs. |
| 2 BATT | Backup battery input | Connects to coin cell; sources OUT during VCC brownout when VBATT > VCC and VCC < VTH. |
| 3 MR | Manual reset input | Active-low; internally pulled up to OUT via 30kΩ; debounced - no external RC needed. |
| 4 PFI | Power-fail comparator input | Monitors auxiliary rail via resistive divider; referenced to 0.590V internal threshold with 30mV hysteresis. |
| 5 WDI | Watchdog timer input | Edge-triggered; resets watchdog on rising/falling edge; left floating to disable watchdog function. |
| 6 BATTON | Battery-on indicator | Active-high open-drain; signals battery-backup mode activation to host controller or status LED. |
| 7 PFO | Power-fail comparator output | Active-low open-drain; asserts when PFI voltage drops below VPFT; used for early power-loss warning. |
| 8 GND | Ground reference | Return path for all analog/digital functions; EP pad must connect to same ground plane. |
| 9 RESET | Reset output | Active-low push-pull; drives µP reset pin directly; VOL ≤ 0.3V at 3.2mA sink current. |
| 10 OUT | Switched output | Delivers regulated VCC or BATT to memory; bypass with ≥0.1µF capacitor to stabilize during switchover. |
Key Features
| Feature | Design Value |
|---|---|
| Battery freshness seal | 20nA max leakage at VBATT = 5.5V prevents premature coin-cell discharge during shelf life. |
| Integrated VCC/BATT switchover | Automatic MOSFET-based switching with <100µs transition time preserves SRAM data integrity. |
| Low-line early-warning capability | Not implemented - MAX16016LTBL+ omits LL output; only MAX16020/MAX16021 support this feature. |
| UL® certification | IEC 60950-1 compliant - satisfies safety requirements for end-equipment without additional isolation. |
| Watchdog timer | 1.2s typical timeout with edge-sensitive WDI input; prevents firmware lockup in embedded systems. |
Applications
| GPS Modules | Set-Top Boxes |
|---|---|
|
Use Scenario: Maintaining RTC and configuration memory during vehicle ignition cycling or antenna signal loss. IC Role / Device Role / Timing Role: Supervisory circuit providing VCC brownout detection, battery-backed power switchover, and µP reset assertion. Use Value: Prevents GPS position drift and channel reacquisition delays by preserving volatile memory contents across 100ms–500ms power interruptions. |
Use Scenario: Safeguarding EPG data and user settings during AC mains dropout or standby mode transitions. IC Role / Device Role / Timing Role: System-level power monitor with reset generation and battery-backed memory retention control. Use Value: Eliminates need for external backup diodes and discrete reset ICs, reducing BOM count and PCB area by 30%. |
| Point-of-Sale Terminals | Portable Medical Devices |
|
Use Scenario: Securing transaction logs and encryption keys during unexpected power loss at retail checkout counters. IC Role / Device Role / Timing Role: Fail-safe memory supervisor with manual reset (MR) and power-fail comparator (PFI). Use Value: Ensures PCI-DSS compliance by guaranteeing non-volatile memory write protection during brownout via CE gating (handled externally in MAX16016). |
Use Scenario: Preserving calibration data and patient history in handheld glucose meters or pulse oximeters during battery replacement. IC Role / Device Role / Timing Role: Low-quiescent-current supervisory IC enabling >5-year coin-cell lifetime in backup mode. Use Value: Achieves 0.25µA battery-backup current - extends CR2032 life to 7+ years at 2.5V nominal VBATT. |
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, LL output, and BATT_TEST; push-pull RESET; same L-suffix reset threshold (4.684V typ). | Required where automatic CE signal blocking during reset is needed for SRAM write protection - MAX16016LTBL+ lacks CE pins. | Select MAX16020PTEZ+ when memory write-protection gating is mandatory and PCB layout allows 16-pin footprint. |
| TPS3808G33DBVR | Single-channel supervisor (no battery switchover, no CE gating); 3.3V fixed reset; 1.8µA ICC; SOT-23-6 package. | Only suitable for basic reset generation - cannot replace MAX16016LTBL+ in battery-backup or PFI monitoring roles. | Choose TPS3808G33DBVR only for cost-sensitive, non-backup applications where VCC monitoring alone suffices. |
Compared with MAX16020PTEZ+, MAX16016LTBL+ offers smaller footprint and lower cost but omits CE gating and low-line warning; compared with TPS3808G33DBVR, it delivers full battery-switchover capability and multi-rail monitoring at higher integration - making it irreplaceable in RTC/SRAM backup systems.
Availability
MAX16016LTBL+ is available at Aetrix Electronics and suitable for GPS systems, point-of-sale terminals, and portable medical devices requiring stable component supply across extended product lifecycles.
Supply support for MAX16016LTBL+ 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 consumer applications.
The MAX16016 belongs to Maxim's µP supervisory family, engineered specifically for fail-safe memory retention in battery-backed systems - emphasizing ultra-low backup current, fast switchover, and certified reliability.
FAQ
What is the reset threshold voltage of the MAX16016LTBL+?
The MAX16016LTBL+ has an L-suffix reset threshold of 4.508V (min), 4.63V (typ), and 4.906V (max), optimized for reliable reset assertion in 5V systems before brownout occurs. This threshold is factory-trimmed and stable over temperature (±0.5% typical drift from –40°C to +85°C), ensuring consistent behavior across operating conditions.
Does the MAX16016LTBL+ support chip-enable (CE) gating for memory write protection?
No, the MAX16016LTBL+ does not support CE gating. That function is exclusive to the MAX16020/MAX16021 variants (16-pin TQFN), which include dedicated CEIN and CEOUT pins. The MAX16016LTBL+ is a 10-pin device with no CE-related pins - its memory write protection relies solely on external circuitry or system-level software control.
What is the maximum battery voltage supported by the MAX16016LTBL+?
The MAX16016LTBL+ supports battery input (BATT pin) up to 6V absolute maximum, with recommended operation at 2.5V–5.5V. At VBATT = 3V, the device draws only 0.25µA in battery-backup mode, and the BATT-to-OUT on-resistance remains ≤5Ω across temperature - enabling efficient power delivery to backup memory without excessive voltage drop.
Can the MAX16016LTBL+ be used with a 3.3V microprocessor system?
Yes, the MAX16016LTBL+ supports 3.3V systems via its wide 1.53V–5.5V operating range and selectable reset thresholds. While the L-suffix is tuned for 5V, other suffixes (e.g., S-suffix: 2.845V–3.080V) are available. For 3.3V use, confirm VTH alignment with system requirements - the MAX16016LTBL+ itself requires matching reset threshold selection, not voltage translation.
Is the MAX16016LTBL+ RoHS-compliant and lead-free?
Yes, the MAX16016LTBL+ is lead(Pb)-free and RoHS-compliant, indicated by the '+' suffix in its 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 - compatible with standard lead-free assembly processes.
MAX16016LTBL+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.63V
- 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-EP (3x3)
MAX16016LTBL+ FAQ
1.How can I place an order for MAX16016LTBL+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16016LTBL+ 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 MAX16016LTBL+ reliable?
The price and inventory of MAX16016LTBL+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16016LTBL+ is usually 5 days.
3.What payment methods are accepted for MAX16016LTBL+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16016LTBL+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16016LTBL+?
MAX16016LTBL+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16016LTBL+ 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 MAX16016LTBL+?
For technical support, including MAX16016LTBL+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16016LTBL+ requirements.
6.How does Aetrix verify that MAX16016LTBL+ is sourced from the original manufacturer or authorized distributors?
All MAX16016LTBL+ 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 MAX16016LTBL+ meets industry standards.
7.What is the process for return or replacement of MAX16016LTBL+?
All MAX16016LTBL+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16016LTBL+, 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 MAX16016LTBL+ part is unused and in its original packaging.
Return procedure for MAX16016LTBL+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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