My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6441KAKQVD3-T
- Part No.:
- MAX6441KAKQVD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Battery Management
- Package:
- SOT-23-8
- Datasheet:
-
MAX6441KAKQVD3-T.pdf
- Description:
- IC BATT MON MULT-CHEM 2C SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6441KAKQVD3-T from Maxim Integrated is a dual-output ultra-low-power battery monitor with integrated microprocessor supervisor, designed for single-cell Li+ or two-/three-cell alkaline/NiMH/NiCd systems. It features factory-trimmed dual low-battery thresholds (LTH− = 1.560V, HTH− = 2.243V), 150ms minimum LBO timeout, open-drain RESET output, and operates from −40°C to +85°C in an 8-pin SOT23 package.
For engineers reviewing the MAX6441KAKQVD3-T datasheet, MAX6441KAKQVD3-T pinout, MAX6441KAKQVD3-T application, or MAX6441KAKQVD3-T equivalent, this device delivers precise hysteresis-based battery state signaling (OK/low/dead) alongside independent VCC supervision (2.625V reset threshold, 150ms timeout) for reliable power management in space-constrained portable electronics.
Technical Context
The MAX6441KAKQVD3-T implements dual comparator-based monitoring using a 1.23V internal reference to detect VBATT against independently trimmed high- and low-threshold windows (HTH−/HTH+, LTH−/LTH+), enabling three-state battery status signaling via open-drain LBOH, LBOL, and LBOLH outputs. Its timing circuitry enforces a mandatory 150ms stabilization window before deassertion.
It integrates a dedicated µP supervisor with factory-set 2.625V VCC reset threshold (±75mV tolerance), 150ms reset timeout (D3 suffix), and manual reset (MR) input with 150ms debounce and internal 1.5kΩ pullup. All functions operate with only 2.5µA typical supply current at 3.6V VBATT/3.3V VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBATT Monitoring | Dual-level detection: LTH− = 1.560V, HTH− = 2.243V (factory-trimmed for two-cell alkaline/NiMH) |
| VCC Reset Threshold | 2.625V (±75mV), fixed via part number suffix 'R' - ensures deterministic brownout protection |
| Reset Timeout | 150ms minimum (D3 suffix) - guarantees stable VCC recovery before processor release |
| Supply Current | 2.5µA typical at 3.6V VBATT/3.3V VCC - enables multi-year operation on coin cells |
| Operating Temp | −40°C to +85°C - fully specified for industrial and consumer portable environments |
| Package | SOT23-8 (2.80 × 2.90 × 1.45 mm) - surface-mount compatible with high-density PCB layouts |
| Output Type | Three open-drain low-battery outputs (LBOH, LBOL, LBOLH) + open-drain RESET - supports level-shifting up to 5.5V |
Pinout & Package
MAX6441KAKQVD3-T is housed in an 8-pin SOT23 package (2.80mm × 2.90mm × 1.45mm body, 0.65mm pitch), optimized for compact battery-powered designs and fully specified across −40°C to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VBATT) | Battery voltage input & primary power source | Monitors battery health and powers device when > VCC; supports 1.2V–5.5V range |
| 2 (MR) | Active-low manual reset input | Internal 1.5kΩ pullup to VCC; debounced 150ms rising-edge rejection prevents switch bounce false triggers |
| 3 (GND) | Analog/digital ground reference | Common return path for all internal comparators, timers, and outputs |
| 4 (LBOLH) | Low-battery output (low/high hysteresis) | Asserts when VBATT < LTH− (1.560V); deasserts after ≥150ms above HTH+ (2.355V) |
| 5 (VCC) | System supply voltage input & reset monitor source | Supplies device if > VBATT; monitored for 2.625V reset threshold with 150ms timeout |
| 6 (RESET) | Active-low open-drain reset output | Asserts on VCC drop below 2.625V or MR pulse; requires external pullup for logic-level compatibility |
| 7 (LBOL) | Low-battery output (low threshold) | Asserts when VBATT < LTH− (1.560V); deasserts after ≥150ms above LTH+ (1.638V) |
| 8 (LBOH) | Low-battery output (high threshold) | Asserts when VBATT < HTH− (2.243V); deasserts after ≥150ms above HTH+ (2.355V) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent low-battery thresholds | LTH−/LTH+ (1.560V/1.638V) and HTH−/HTH+ (2.243V/2.355V) enable three-state battery status reporting without external components |
| 150ms minimum timeout on all outputs | Prevents chattering during transient voltage dips; ensures system only responds to sustained battery degradation |
| 2.5µA typical quiescent current | Extends battery life in always-on monitoring applications - critical for medical wearables and remote sensors |
| Factory-trimmed VCC reset at 2.625V | Eliminates need for external resistor divider; guarantees ±75mV accuracy over full temperature range |
| MR input with 150ms debounce | Hardware-level switch bounce suppression removes firmware polling or RC filter requirements |
| Open-drain outputs tolerant to 5.5V | Allows interfacing with higher-voltage microcontrollers (e.g., 3.3V/5V I/O) while powered directly from battery |
Applications
| Portable Medical Devices | Electronic Toys |
|---|---|
Use Scenario: Continuous glucose monitor powered by a single alkaline AA cell. IC Role / Device Role / Timing Role: MAX6441KAKQVD3-T monitors battery voltage and signals "low" (LBOL) to trigger audible alert and "dead" (LBOH) to disable non-critical subsystems before shutdown. Use Value: Prevents unexpected power loss during measurement cycles; extends usable runtime by 12% versus single-threshold monitors via hysteresis-driven state retention. |
Use Scenario: Remote-controlled toy car with NiMH rechargeable pack. IC Role / Device Role / Timing Role: MAX6441KAKQVD3-T asserts LBOLH when battery drops below 1.560V, prompting MCU to reduce motor PWM and disable LED effects; LBOH disables drive circuitry entirely at 2.243V. Use Value: Enables graceful performance degradation instead of abrupt cutoff, improving user experience and preventing motor stall damage. |
| Cell Phones / Cordless Phones | MP3 Players |
Use Scenario: Feature phone with Li+ battery and baseband processor. IC Role / Device Role / Timing Role: MAX6441KAKQVD3-T uses LBOH to warn of imminent battery depletion (2.243V), triggering display dimming and background task suspension; LBOL initiates controlled shutdown at 1.560V. Use Value: Delivers consistent low-battery warning timing across charge cycles - eliminates premature alerts caused by load-induced voltage sag. |
Use Scenario: Flash-based MP3 player using two alkaline AA cells. IC Role / Device Role / Timing Role: MAX6441KAKQVD3-T drives LBOLH to signal "low battery" (1.560V), prompting firmware to enter low-power playback mode; RESET ensures clean boot after battery replacement. Use Value: Maintains audio continuity during voltage transients; 150ms timeout prevents false resets from brief switch bounce or ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery monitor and µP supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6442KAKQVD3-T | Push-pull RESET output (vs. open-drain); identical dual-LBO thresholds and VCC supervision | Eliminates need for external RESET pullup resistor; better suited for systems requiring strong active-low drive | Select when board layout lacks space for pullup or when driving heavy RESET loads (e.g., multiple ICs) |
| MAX6441KAJQVD3-T | Higher LTH−/HTH− thresholds (1.638V/2.340V) - shifts low-battery warning point upward by 78mV/97mV | Triggers low-battery alerts earlier in discharge curve; reduces risk of deep discharge in sensitive chemistries | Select for Li+ applications where tighter voltage margin control is required to prevent over-discharge |
Compared with MAX6442KAKQVD3-T, the MAX6441KAKQVD3-T offers lower RESET drive strength but greater flexibility in level-shifting; compared with MAX6441KAJQVD3-T, it provides later-stage battery warnings ideal for alkaline/NiMH systems with flatter discharge curves.
Availability
MAX6441KAKQVD3-T is available at Aetrix Electronics and suitable for portable medical devices, electronic toys, cordless phones, and MP3 players requiring stable component supply, long-term lifecycle support, and guaranteed factory-trimmed accuracy.
Supply support for MAX6441KAKQVD3-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 precision analog, mixed-signal, and power management ICs for industrial, medical, and consumer applications.
The MAX6439–MAX6442 family was designed to deliver ultra-low-power, factory-calibrated battery monitoring and µP supervision in minimal footprint - targeting space- and energy-constrained portable electronics where external components must be eliminated.
FAQ
What battery chemistries does the MAX6441KAKQVD3-T support?
The MAX6441KAKQVD3-T supports single-cell lithium-ion (Li+) and two- or three-cell alkaline/NiCd/NiMH batteries. Its factory-trimmed thresholds - LTH− = 1.560V and HTH− = 2.243V - are specifically optimized for two-cell alkaline/NiMH systems, providing accurate low- and dead-battery detection without external resistors or calibration.
How does the hysteresis in MAX6441KAKQVD3-T prevent output chattering?
The MAX6441KAKQVD3-T implements hysteresis by defining separate assertion (LTH−/HTH−) and deassertion (LTH+/HTH+) thresholds - e.g., LBOL asserts at 1.560V but only clears after VBATT rises to 1.638V. This 78mV gap eliminates oscillation during voltage fluctuations caused by load switching or battery internal resistance, ensuring stable system-level responses.
What is the function of the MR pin on MAX6441KAKQVD3-T?
The MR (Manual Reset) pin on MAX6441KAKQVD3-T is an active-low input with internal 1.5kΩ pullup to VCC. When pulled low, it triggers a one-shot RESET pulse for 150ms (D3 timeout). Its built-in 150ms rising-edge debounce rejects switch bounce, making it ideal for push-button reset interfaces without external filtering components.
Can MAX6441KAKQVD3-T interface with a 5V microcontroller?
Yes - all open-drain outputs (LBOH, LBOL, LBOLH, RESET) on MAX6441KAKQVD3-T tolerate up to 5.5V. By using a 5V pullup resistor on any output, the device can directly drive 5V-tolerant GPIO pins or reset inputs, enabling seamless integration with mixed-voltage systems while operating from a lower VBATT or VCC supply.
What does the 'D3' suffix in MAX6441KAKQVD3-T indicate?
The 'D3' suffix in MAX6441KAKQVD3-T specifies a 150ms minimum timeout period for both low-battery output deassertion and VCC reset timeout. This value is factory-trimmed and guaranteed over −40°C to +85°C, ensuring consistent timing behavior without external capacitors or calibration - critical for deterministic power sequencing.
MAX6441KAKQVD3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Battery Monitor
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- 2
- Fault Protection:
- -
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX6441KAKQVD3-T FAQ
1.How can I place an order for MAX6441KAKQVD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6441KAKQVD3-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 MAX6441KAKQVD3-T reliable?
The price and inventory of MAX6441KAKQVD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6441KAKQVD3-T is usually 5 days.
3.What payment methods are accepted for MAX6441KAKQVD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6441KAKQVD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6441KAKQVD3-T?
MAX6441KAKQVD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6441KAKQVD3-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 MAX6441KAKQVD3-T?
For technical support, including MAX6441KAKQVD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6441KAKQVD3-T requirements.
6.How does Aetrix verify that MAX6441KAKQVD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6441KAKQVD3-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 MAX6441KAKQVD3-T meets industry standards.
7.What is the process for return or replacement of MAX6441KAKQVD3-T?
All MAX6441KAKQVD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6441KAKQVD3-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 MAX6441KAKQVD3-T part is unused and in its original packaging.
Return procedure for MAX6441KAKQVD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6441KAKQVD3-T Tags
-
BQ29700DSER
Texas Instruments
-
S-8241ABKMC-GBKT2G
ABLIC Inc.
-
S-8241ABPMC-GBPT2G
ABLIC Inc.
-
BQ27427YZFR
Texas Instruments
-
BQ27426YZFR
Texas Instruments
-
STC3117IJT
STMicroelectronics
-
STC3115IJT
STMicroelectronics
-
BQ76925RGER
Texas Instruments
-
NPM1100-QDAA-R
Nordic Semiconductor ASA
-
BQ27441DRZR-G1A
Texas Instruments
-
STC3115AIQT
STMicroelectronics
-
S-8252AAL-M6T1U
ABLIC Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
