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Analog Devices Inc./Maxim Integrated MAX9065EUK+T
- Part No.:
- MAX9065EUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX9065EUK+T.pdf
- Description:
- IC COMPARATOR 1 WINDW SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,720
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Product details
Overview
MAX9065EUK+T from Maxim Integrated is a nanoPower window comparator IC designed for lithium-ion battery voltage monitoring in space-constrained portable electronics. It features 3.0V/4.2V fixed thresholds, 1μA max supply current, -0.3V to +5.5V input common-mode range, and operates from 1.0V to 5.5V supply over -40°C to +85°C. Its push-pull output drives microcontroller wake-up or fuel-gauge enable signals in battery-powered notebooks and media players.
For engineers reviewing the MAX9065EUK+T datasheet, MAX9065EUK+T pinout, MAX9065EUK+T application, or MAX9065EUK+T equivalent, this page delivers verified electrical behavior, SOT23-5 package mapping, threshold accuracy across temperature, RF-immune operation, and direct substitution guidance for battery-monitoring circuits requiring ultra-low quiescent current and tight voltage window detection.
Technical Context
The MAX9065EUK+T implements a dual-comparator architecture with an internal 200mV reference and precision resistor divider to generate VUPPER and VLOWER thresholds. Its digital logic behaves as an AND gate: output goes high only when input lies strictly between 3.0V and 4.2V (typical at +25°C), low otherwise.
It integrates power-down functionality-input current drops to ≤15nA when VCC = 0V-and exhibits 1% hysteresis (±1.0%) with propagation delay of 25µs (typ) under ±100mV overdrive. Input resistance is 5.8–17.7MΩ, enabling high-impedance sensing without loading source circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 1.35μA max at VCC = 5.5V - enables multi-year battery life in always-on monitoring |
| Upper Threshold Voltage | 4.20V ±0.10V over -40°C to +85°C - matches Li-ion full-charge cutoff |
| Lower Threshold Voltage | 3.00V ±0.17V over -40°C to +85°C - aligns with Li-ion discharge termination |
| Input Voltage Range | -0.3V to +5.5V independent of VCC - supports direct connection to battery rail without level shift |
| Output Type | Push-pull - eliminates external pull-up, reduces BOM count and board area |
| Propagation Delay | 25µs typical at ±100mV overdrive - ensures fast response to overvoltage/undervoltage events |
| Operating Temperature | -40°C to +85°C extended range - qualified for industrial and portable end equipment |
Pinout & Package
The MAX9065EUK+T is housed in a RoHS-compliant 5-pin SOT23 package (outline 21-0057), footprint size 2.9mm × 1.6mm, with standard lead pitch of 0.95mm. Thermal derating is 3.9mW/°C above +70°C (max 312mW at +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Positive supply input | Accepts 1.0V–5.5V; requires 0.1µF bypass capacitor to GND for stable operation |
| 2,3 (GND) | Ground reference | Dual ground pins reduce impedance and improve noise immunity in compact layouts |
| 4 (IN) | Analog input | High-impedance node (5.8–17.7MΩ) for direct battery voltage sensing; common-mode range extends below GND |
| 5 (OUT) | Digital output | Push-pull structure drives high/low actively; no external pull-up needed for MCU interface |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 3.0V/4.2V thresholds | Eliminates external resistor network, reducing component count and layout complexity for Li-ion battery monitoring |
| 1μA max supply current | Enables continuous battery voltage supervision without measurable impact on standby runtime |
| Input shutdown at VCC = 0V | Reduces system leakage to ≤15nA during deep sleep, preserving battery charge during storage |
| RF-immune design | Prevents false triggering from cellular/WiFi interference in handheld devices without added filtering |
| Push-pull output stage | Supports direct interfacing to 1.0V–5.5V logic families without level-shifting circuitry |
Applications
| Lithium-Ion Battery Protection | Notebook Computer Power Management |
|---|---|
Use Scenario: Monitoring single-cell Li-ion battery voltage to prevent overcharge (>4.2V) and deep discharge (<3.0V). IC Role / Device Role / Timing Role: Window comparator generating active-low fault signal when voltage exits safe window. Use Value: Extends battery cycle life and avoids thermal runaway by enforcing JEITA-compliant voltage limits with <±0.17V accuracy over temperature. | Use Scenario: Enabling system-level power sequencing and low-power mode entry based on battery state. IC Role / Device Role / Timing Role: Providing wake-up trigger to EC or PMIC when battery voltage re-enters operational window after brownout. Use Value: Reduces firmware polling overhead and eliminates need for ADC-based voltage sampling in resource-constrained embedded controllers. |
| Portable Medical Device Safety | Electronic Toy Power Supervision |
Use Scenario: Ensuring regulated power supply remains within safe operating band for analog sensor front-ends. IC Role / Device Role / Timing Role: Generating hardware reset or alert flag when supply dips below 3.0V or surges above 4.2V. Use Value: Guarantees deterministic fail-safe behavior independent of software execution, meeting IEC 62304 Class B requirements. | Use Scenario: Detecting battery depletion in children's toys to disable motors and LEDs before unsafe low-voltage operation. IC Role / Device Role / Timing Role: Driving LED indicator or buzzer via open-drain-compatible output when battery falls below 3.0V. Use Value: Prevents erratic motor behavior and audible noise caused by marginal supply, improving user experience and safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar window comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV6700DBVR | Adjustable thresholds via external resistors; 1.8V–5.5V supply; 1.2μA max ICC | Requires 2 external resistors and reference; lacks factory-trimmed 3.0V/4.2V match | Select when flexible threshold tuning is required and board space allows resistor network |
| MAX9064EUK+T | Same package and pinout; identical 3.0V/4.2V thresholds but open-drain output | Requires external pull-up; less suitable for direct MCU GPIO without level translation | Choose only if open-drain output is explicitly needed for wired-OR bus configurations |
Compared with TLV6700DBVR and MAX9064EUK+T, the MAX9065EUK+T offers the only combination of factory-trimmed Li-ion thresholds, push-pull output, and sub-1.4μA supply current in SOT23-5-enabling zero-resistor, zero-pullup battery monitoring with minimal PCB footprint and lowest system-level power penalty.
Availability
MAX9065EUK+T is available at Aetrix Electronics and suitable for lithium-ion battery protection, notebook power management, and portable medical device safety systems requiring stable component supply and long-term lifecycle support.
Supply support for MAX9065EUK+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 industrial, automotive, and portable applications.
The MAX9065 series targets ultra-low-power voltage monitoring in space-constrained battery-operated systems, delivering factory-trimmed window comparators with nanoscale packaging and guaranteed performance across extended temperature ranges.
FAQ
What is the exact threshold voltage tolerance of MAX9065EUK+T over temperature?
The MAX9065EUK+T has upper threshold voltage (UTV) specified from 3.98V to 4.42V and lower threshold voltage (LTV) from 2.83V to 3.17V across -40°C to +85°C. These ranges reflect guaranteed min/max values-not typical drift-ensuring reliable Li-ion cutoff enforcement even at temperature extremes. The MAX9065EUK+T maintains this specification without calibration or trimming.
Does MAX9065EUK+T require external components to operate?
No, the MAX9065EUK+T requires only a 0.1µF bypass capacitor on VCC to GND for stable operation. Its 3.0V/4.2V thresholds are factory-trimmed and internally generated-no external resistors, references, or feedback networks are needed. This makes MAX9065EUK+T a true "zero-component" window comparator solution for Li-ion battery monitoring.
Can MAX9065EUK+T monitor voltages below ground?
Yes, the MAX9065EUK+T supports an input voltage range of -0.3V to +5.5V independent of supply voltage. This allows direct sensing of signals referenced below GND-such as battery cell taps in multi-cell packs or differential outputs-without level-shifting circuitry. The MAX9065EUK+T maintains full comparator functionality down to -0.3V at the IN pin.
How does MAX9065EUK+T behave when VCC is disconnected?
When VCC = 0V, the MAX9065EUK+T disables its internal resistor divider and reduces input leakage to ≤15nA. The output enters high-impedance state (not driven), and supply current drops to near-zero. This behavior prevents battery drain during storage or system shutdown-confirming MAX9065EUK+T's suitability for always-connected battery monitoring applications.
Is MAX9065EUK+T pin-compatible with other devices in the MAX906x family?
The MAX9065EUK+T shares the same 5-pin SOT23 pinout with MAX9064EUK+T and MAX9066EUK+T, but differs in output type and threshold configuration. MAX9065EUK+T has push-pull output and fixed 3.0V/4.2V thresholds; MAX9064EUK+T uses open-drain output with identical thresholds; MAX9066EUK+T provides complementary thresholds. Swapping requires verifying output drive capability and system-level logic compatibility-MAX9065EUK+T is not a drop-in replacement for either.
MAX9065EUK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Window
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 1V ~ 5.5V
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 1.35µA
- Current - Quiescent (Max):
- 53dB PSRR
- CMRR, PSRR (Typ):
- 25µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
MAX9065EUK+T FAQ
1.How can I place an order for MAX9065EUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9065EUK+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 MAX9065EUK+T reliable?
The price and inventory of MAX9065EUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9065EUK+T is usually 5 days.
3.What payment methods are accepted for MAX9065EUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9065EUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9065EUK+T?
MAX9065EUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9065EUK+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 MAX9065EUK+T?
For technical support, including MAX9065EUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9065EUK+T requirements.
6.How does Aetrix verify that MAX9065EUK+T is sourced from the original manufacturer or authorized distributors?
All MAX9065EUK+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 MAX9065EUK+T meets industry standards.
7.What is the process for return or replacement of MAX9065EUK+T?
All MAX9065EUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9065EUK+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 MAX9065EUK+T part is unused and in its original packaging.
Return procedure for MAX9065EUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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