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Analog Devices Inc./Maxim Integrated MAX6430ORUS-T
- Part No.:
- MAX6430ORUS-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Battery Management
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6430ORUS-T.pdf
- Description:
- IC BAT MON MULT-CHEM 2C SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
The MAX6430ORUS-T from Maxim Integrated is a dual-output, factory-trimmed battery monitor IC for single Li+ or multi-cell alkaline/NiMH/NiCd power supplies. It provides two active-low open-drain outputs (LBOH and LBOL) with 140ms minimum timeout, ±2.5% threshold accuracy, and 1µA typical supply current. It is used to enable low-power mode (LBOH asserted) and system shutdown (LBOL asserted) in portable medical devices and cordless phones.
For engineers reviewing the MAX6430ORUS-T datasheet, MAX6430ORUS-T pinout, MAX6430ORUS-T application, or MAX6430ORUS-T equivalent, key selection criteria include dual-threshold hysteresis behavior, SOT143-4 package compatibility, guaranteed LBO logic state down to 1.0V BATT, and immunity to short battery transients.
Technical Context
The MAX6430ORUS-T implements two independent comparators with internal hysteresis and a 140ms timeout timer to prevent chatter during battery recovery. Its factory-trimmed thresholds-VHTH− (2.9V), VHTH+ (3.045V), VLTH− (2.7V), and VLTH+ (2.835V)-are fixed at production and require no external components.
It operates from 1.0V to 5.5V BATT supply, delivers push-pull or open-drain output logic options, and guarantees valid LBO states down to BATT = 1.0V. The device uses BiCMOS process technology and integrates 905 transistors for ultra-low quiescent current operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 1µA typical - enables multi-year battery life in always-on monitoring applications. |
| Operating Voltage Range | 1.0V to 5.5V - supports full discharge monitoring of single Li+ cells and 2–3-cell alkaline/NiMH packs. |
| LBO Timeout Period | 140ms minimum - ensures stable voltage before re-enabling microprocessor or DC/DC converter activity. |
| Threshold Accuracy | ±2.5% - guarantees precise battery-state transitions without calibration or trimming. |
| Output Type | Active-low open-drain (LBOH/LBOL) - allows level-shifting up to 5.5V and direct interface with higher-voltage logic. |
| Temperature Range | −40°C to +85°C - fully specified for industrial and portable consumer environments. |
Pinout & Package
The MAX6430ORUS-T is housed in a 4-pin SOT143-4 package (3.0mm × 1.7mm × 1.3mm), lead-free, RoHS-compliant, and tape-and-reel packaged.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | BATT | Battery voltage input and primary power supply - monitors voltage directly and powers internal circuitry. |
| 2 | GND | Analog/digital ground reference - must be connected to system ground plane for accurate threshold sensing. |
| 3 | LBOH | Active-low open-drain "weak battery" output - asserts when BATT falls below 2.9V and deasserts after ≥140ms above 3.045V. |
| 4 | LBOL | Active-low open-drain "empty battery" output - asserts when BATT falls below 2.7V and deasserts after ≥140ms above 2.835V. |
Key Features
| Feature | Design Value |
|---|---|
| Dual factory-trimmed thresholds | 2.9V/3.045V (LBOH) and 2.7V/2.835V (LBOL) - eliminates external resistors and calibration effort. |
| 140ms minimum timeout | Prevents false wake-up or reset during transient dips - critical for reliable low-power state management. |
| Guaranteed LBO logic to 1.0V BATT | Ensures deterministic shutdown signaling even near end-of-life battery voltage. |
| Immunity to short voltage transients | Rejects <100µs spikes - avoids spurious low-battery assertions during load switching or RF events. |
| No external components required | Reduces BOM count, PCB area, and design validation time for cost-sensitive portable systems. |
Applications
| Portable Medical Devices | Cordless Phones |
|---|---|
Use Scenario: Continuous glucose monitor operating on a single Li+ cell with runtime optimization. IC Role / Device Role / Timing Role: Dual-threshold battery monitor triggering sleep mode (LBOH) at 2.9V and hard shutdown (LBOL) at 2.7V. Use Value: Extends usable battery capacity by 12% via staged power reduction before final cutoff. | Use Scenario: DECT cordless handset requiring battery status feedback to base station and display. IC Role / Device Role / Timing Role: Provides discrete "low battery" and "replace battery" signals using separate open-drain outputs. Use Value: Enables accurate battery-level UI indication without firmware polling or ADC overhead. |
| Electronic Toys | PDAs |
Use Scenario: Voice-enabled learning toy powered by two alkaline cells with audio degradation mitigation. IC Role / Device Role / Timing Role: Triggers volume reduction and LED warning (LBOH) at 2.9V, then disables motor/audio (LBOL) at 2.7V. Use Value: Prevents erratic behavior and user confusion during battery depletion. | Use Scenario: Handheld PDA with backlight dimming and memory retention control based on battery charge. IC Role / Device Role / Timing Role: Generates interrupt to processor via LBOH/LBOL to initiate graceful save-and-suspend sequence. Use Value: Guarantees data integrity and zero data loss during unexpected power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-level battery monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6431ORUS-T | Same SOT143-4 package and 2.9V/2.7V thresholds, but features active-low push-pull LBOH/LBOL instead of open-drain. | Requires no external pull-up resistors; better suited for direct MCU GPIO interface without level-shifting. | Select MAX6431ORUS-T when driving 3.3V logic directly and minimizing external components beyond pull-ups. |
| TLV809E29DBZR | Single-output, 2.93V reset IC with 200ms timeout; no dual-threshold or LBOL functionality. | Only supports basic "low battery" warning-not staged response or shutdown sequencing. | Choose TLV809E29DBZR only for simple undervoltage detection where dual-state signaling is unnecessary. |
Compared with MAX6430ORUS-T, MAX6431ORUS-T offers identical threshold behavior but different output drive architecture, while TLV809E29DBZR lacks LBOL functionality entirely-making it unsuitable for applications requiring coordinated low-power mode entry and safe shutdown.
Availability
MAX6430ORUS-T is available at Aetrix Electronics and suitable for portable medical devices, cordless phones, electronic toys, and PDAs requiring stable component supply across extended production lifecycles.
Supply support for MAX6430ORUS-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) designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and portable applications.
The MAX6427–MAX6438 family was engineered specifically for ultra-low-power battery state monitoring in space-constrained, long-life portable systems - emphasizing sub-µA operation, factory-trimmed accuracy, and dual-threshold hysteresis.
FAQ
What is the exact factory-trimmed threshold voltage set for MAX6430ORUS-T?
The MAX6430ORUS-T is configured with VHTH− = 2.9V, VHTH+ = 3.045V, VLTH− = 2.7V, and VLTH+ = 2.835V. These values are laser-trimmed at wafer test and documented in Maxim's Standard Versions Table under "OR" suffix. The MAX6430ORUS-T does not support user adjustment - all thresholds are fixed and verified across −40°C to +85°C.
Does MAX6430ORUS-T require external resistors or capacitors to operate?
No. The MAX6430ORUS-T requires no external components: its dual thresholds, hysteresis, and 140ms timeout are fully integrated. Only BATT, GND, and two pull-up resistors (for open-drain LBOH/LBOL) are needed. This simplifies layout, reduces BOM cost, and eliminates resistor tolerance errors that affect accuracy in adjustable alternatives.
Can MAX6430ORUS-T operate reliably when battery voltage drops to 1.0V?
Yes. The MAX6430ORUS-T guarantees valid logic states on LBOH and LBOL outputs down to BATT = 1.0V - a key specification enabling fail-safe shutdown signaling even at end-of-discharge. This behavior is validated across temperature and process corners, unlike many comparators that lose output drive capability below 1.5V.
What is the purpose of the 140ms timeout period in MAX6430ORUS-T?
The 140ms timeout ensures the battery voltage has stabilized after rising above the high threshold before deasserting LBOH or LBOL. This prevents chattering during battery recovery after load removal - a common cause of premature wake-up or unstable power sequencing in DC/DC converter or microprocessor systems using the MAX6430ORUS-T.
How does MAX6430ORUS-T differ from MAX6430DHUS-T?
The MAX6430ORUS-T and MAX6430DHUS-T share the same SOT143-4 package and dual-output open-drain architecture, but differ in factory-trimmed thresholds: OR specifies 2.9V/2.7V, while DH specifies 2.6V/2.3V. Both are drop-in replacements electrically and mechanically - only the trip points differ. Selection depends strictly on target battery chemistry and system voltage margins.
MAX6430ORUS-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- 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-23-4
MAX6430ORUS-T FAQ
1.How can I place an order for MAX6430ORUS-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6430ORUS-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 MAX6430ORUS-T reliable?
The price and inventory of MAX6430ORUS-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6430ORUS-T is usually 5 days.
3.What payment methods are accepted for MAX6430ORUS-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6430ORUS-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6430ORUS-T?
MAX6430ORUS-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6430ORUS-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 MAX6430ORUS-T?
For technical support, including MAX6430ORUS-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6430ORUS-T requirements.
6.How does Aetrix verify that MAX6430ORUS-T is sourced from the original manufacturer or authorized distributors?
All MAX6430ORUS-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 MAX6430ORUS-T meets industry standards.
7.What is the process for return or replacement of MAX6430ORUS-T?
All MAX6430ORUS-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6430ORUS-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 MAX6430ORUS-T part is unused and in its original packaging.
Return procedure for MAX6430ORUS-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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