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Analog Devices Inc./Maxim Integrated MAX6775LTA+
- Part No.:
- MAX6775LTA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Battery Management
- Package:
- 6-WFDFN
- Datasheet:
-
MAX6775LTA+.pdf
- Description:
- MAX6775 LOW-POWER, 1PERCENT-ACCU
- Quantity:
- Payment:
- Shipping:
Inventory:1,507
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Product details
Overview
The MAX6775LTA+ from Maxim Integrated is a single-channel, low-power battery monitor IC designed to detect falling battery voltage in portable systems. It features factory-set 5% hysteresis, 1.0% threshold accuracy over -40°C to +85°C, 3µA supply current, push-pull active-low output, and operates from 1.2V to 5.5V battery input - enabling reliable low-battery signaling in Li+ and multicell alkaline/NiMH devices.
For engineers reviewing the MAX6775LTA+ datasheet, MAX6775LTA+ pinout, MAX6775LTA+ application, or MAX6775LTA+ equivalent, this device supports precision battery health monitoring where ultra-low quiescent current, guaranteed logic state down to 1V VBATT, and immunity to short transients are critical selection criteria.
Technical Context
The MAX6775LTA+ implements a fixed-threshold comparator with internal 1.222V reference and factory-trimmed hysteresis (5%, yielding 1.1609V falling / 1.222V rising thresholds). Its push-pull output drives directly into microcontroller interrupt or enable inputs without external pull-up, and its <5nA LBI input leakage enables high-impedance resistive divider networks for minimal battery drain.
This variant belongs to the MAX6775–MAX6781 family's single-output, fixed-hysteresis subgroup (denoted by "B" suffix), packaged in a 6-pin µDFN (1.0mm × 1.5mm). It is fully specified across the extended industrial temperature range and guarantees valid output logic down to VBATT = 1V - critical for deep-discharge detection in space-constrained battery-powered equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2V to 5.5V - supports operation down to near-dead battery voltage while maintaining functional output state |
| Supply Current | 3.2µA (typ) at 1.8V - enables multi-year operation on coin cells or primary batteries |
| Falling Threshold | 1.1609V (5% hysteresis) - triggers low-battery alert when monitored voltage drops below this level |
| Rising Threshold | 1.222V - ensures clean deassertion only after sufficient battery recovery, eliminating chatter |
| Output Type | Push-pull active-low - eliminates need for external pull-up resistor; compatible with 1.8V/3.3V/5V logic interfaces |
| Input Leakage | ±5nA max - permits use of >1MΩ resistive dividers without significant threshold error |
| Propagation Delay | 9µs - provides fast response to rapid battery collapse without excessive noise sensitivity |
Pinout & Package
Package: 6-pin µDFN (1.0mm × 1.5mm), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - BATT | Battery power supply input | Accepts 1.2V–5.5V; powers internal circuitry and defines operating range |
| 2 - LBO | Active-low push-pull output | Drives low during battery undervoltage; sinks up to 3.2mA at 4.5V VBATT |
| 3 - N.C. | No internal connection | Must be left unconnected; not used for signal or thermal relief |
| 4 - LBH | Rising-threshold input (not used) | Not connected internally in MAX6775LTA+; reserved for adjustable-hysteresis variants |
| 5 - LBL | Falling-threshold input (not used) | Not connected internally in MAX6775LTA+; reserved for adjustable-hysteresis variants |
| 6 - GND | Analog and power ground | Primary ground return; GND2 (pin 1 in SC70) is not present in µDFN package |
Key Features
| Feature | Design Value |
|---|---|
| 1.0% threshold accuracy over temperature | Guarantees ±12mV absolute error at 1.222V reference across -40°C to +85°C - enables precise end-of-life prediction |
| 5% factory-fixed hysteresis | Eliminates false triggering from load-induced voltage recovery or EMI without external components |
| 3.2µA typical supply current | Extends shelf life and runtime in always-on monitoring applications such as medical wearables or remote sensors |
| Valid output down to VBATT = 1V | Ensures deterministic logic state even during deep discharge - critical for graceful system shutdown |
| Immunity to short battery transients | Rejects <100µs spikes per MAX6775 toc03 - prevents spurious alerts in noisy DC-DC environments |
Applications
| Portable Medical Devices | Electronic Toys |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with coin-cell power requiring accurate end-of-life warning before sensor calibration failure. IC Role / Device Role / Timing Role: Single-point battery voltage supervisor asserting interrupt to MCU when cell voltage falls below 1.1609V. Use Value: Prevents data loss by triggering safe shutdown 2–3 hours before complete depletion, leveraging 1.0% threshold stability over body-temperature range. | Use Scenario: Voice-activated learning toy powered by two AA alkaline cells, needing early low-battery indication before audio distortion occurs. IC Role / Device Role / Timing Role: Primary battery monitor interfacing directly with toy's 3.3V microcontroller GPIO via push-pull output. Use Value: Enables 30-second audible warning prior to cutoff using only 3.2µA quiescent draw - extending usable playtime by ~15% vs. higher-IQ alternatives. |
| MP3 Players | Pagers |
Use Scenario: Flash-based MP3 player with Li+ battery where sudden shutdown must be avoided during file writes. IC Role / Device Role / Timing Role: Dedicated low-battery detector feeding hardware reset controller to initiate controlled flash write completion. Use Value: Guarantees 9µs propagation delay ensures alert occurs before voltage sag disrupts NAND programming cycles - reducing corruption risk by >99%. | Use Scenario: Two-way pager with NiMH pack requiring dual-stage alert: amber LED at 20% remaining, red blink at 5%. IC Role / Device Role / Timing Role: First-stage monitor (MAX6775LTA+) providing primary low-battery flag to baseband processor. Use Value: Factory-set 5% hysteresis prevents flicker during intermittent RF transmit bursts - improving user perception of battery status reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6775XKB+T | Same electrical specs and hysteresis, but in 5-pin SC70 package (1.6mm × 1.6mm) | Larger footprint; requires different PCB land pattern and may limit board density in ultra-compact designs | Select when SC70 handling compatibility or legacy layout reuse outweighs size advantage of µDFN |
| TLV7031DBVR | General-purpose nanopower comparator (650nA IQ), no built-in hysteresis or reference - requires external resistor network and reference | Higher design complexity; threshold accuracy depends on external component tolerance and layout | Select only when custom hysteresis or nonstandard thresholds are required and bill-of-material flexibility is prioritized |
Compared with MAX6775XKB+T, the MAX6775LTA+ saves 0.6mm² board area and simplifies assembly with µDFN; compared with TLV7031DBVR, it delivers out-of-box 1.0% accuracy and 5% hysteresis without external passives - reducing validation time and BOM count by two resistors and one reference source.
Availability
MAX6775LTA+ is available at Aetrix Electronics and suitable for portable medical devices, electronic toys, MP3 players, pagers, and other battery-powered systems requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6775LTA+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX6775–MAX6781 family was designed specifically for ultra-low-power, high-accuracy battery voltage supervision in space-constrained portable electronics - emphasizing guaranteed performance across temperature, minimal quiescent current, and robust noise immunity.
FAQ
What is the exact hysteresis percentage and corresponding thresholds for MAX6775LTA+
The MAX6775LTA+ has factory-set 5% hysteresis. Its falling threshold (VLBIF) is 1.1609V and rising threshold (VLBIR) is 1.222V at +25°C, yielding a hysteresis voltage of 61.1mV. These values are guaranteed over the full -40°C to +85°C temperature range per the MAX6775 datasheet Table 2, and apply directly to the MAX6775LTA+ as confirmed by its "B" hysteresis suffix and top mark "BW".
Does MAX6775LTA+ require an external pull-up resistor on its LBO pin?
No, MAX6775LTA+ does not require an external pull-up resistor because it features a push-pull output configuration. The LBO pin actively drives both high and low states, enabling direct interface with 1.8V, 3.3V, or 5V logic inputs without additional components - a key distinction from open-drain variants like MAX6776LTA+.
Can MAX6775LTA+ operate reliably when battery voltage drops below 1.5V?
Yes, MAX6775LTA+ is fully specified down to VBATT = 1.2V and guarantees a valid logic-low or logic-high output state even at VBATT = 1V. This capability is explicitly documented in the Features list and Electrical Characteristics table, making it suitable for detecting deep discharge in single-cell Li+ or alkaline systems where voltage falls below 1.5V.
What is the maximum sink current capability of the LBO output in MAX6775LTA+?
The LBO output of MAX6775LTA+ can sink up to 3.2mA while maintaining VOL ≤ 0.3V, tested at VBATT ≥ 4.5V and ISINK = 3.2mA. At lower supply voltages (e.g., VBATT = 1.6V), it sustains 100µA sink current with VOL ≤ 0.3V - ensuring robust drive strength across the entire operating range.
Is the MAX6775LTA+ pin-compatible with other variants in the MAX6775–MAX6781 family?
No, MAX6775LTA+ is not pin-compatible with adjustable-hysteresis (e.g., MAX6777LTA+) or dual-output (e.g., MAX6779LTA+) variants due to differing pin functions - notably LBH and LBL pins are unused and must remain unconnected in MAX6775LTA+, whereas they serve active roles in other variants. Only MAX6775XKB+T shares identical functionality but uses a different 5-pin SC70 package.
MAX6775LTA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Battery Monitor
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- -
- Fault Protection:
- -
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µDFN (1.5x1)
MAX6775LTA+ FAQ
1.How can I place an order for MAX6775LTA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6775LTA+ 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 MAX6775LTA+ reliable?
The price and inventory of MAX6775LTA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6775LTA+ is usually 5 days.
3.What payment methods are accepted for MAX6775LTA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6775LTA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6775LTA+?
MAX6775LTA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6775LTA+ 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 MAX6775LTA+?
For technical support, including MAX6775LTA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6775LTA+ requirements.
6.How does Aetrix verify that MAX6775LTA+ is sourced from the original manufacturer or authorized distributors?
All MAX6775LTA+ 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 MAX6775LTA+ meets industry standards.
7.What is the process for return or replacement of MAX6775LTA+?
All MAX6775LTA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6775LTA+, 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 MAX6775LTA+ part is unused and in its original packaging.
Return procedure for MAX6775LTA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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