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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Current Regulation/Management

Diodes Incorporated ZXCT1086QE5TA

Name: ZXCT1086QE5TA
Brand: Diodes Incorporated
SKU: ZXCT1086QE5TA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ZXCT1086QE5TA

Manufacturer:: Diodes Incorporated

Category:: Current Regulation/Management

Package:: SC-74A, SOT-753

Datasheet:: ZXCT1086QE5TA.pdf

Description:: IC CURRENT MONITOR 2% SOT25

Quantity:: RFQ Add To RFQ list

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Inventory:322

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Product details

Overview

ZXCT1086QE5TA from Diodes Incorporated is an automotive-grade, high-side unipolar current sense monitor in SOT25 package, delivering fixed 50× voltage gain (VOUT = 50 × VSENSE), 60V max common-mode input range, and 0.6µA quiescent current for precision battery management and load monitoring in 24–28V industrial and automotive systems.

For engineers reviewing the ZXCT1086QE5TA datasheet, ZXCT1086QE5TA pinout, ZXCT1086QE5TA application, or ZXCT1086QE5TA equivalent, this device supports AEC-Q100 Grade 1 qualification, operates from −40°C to +125°C, offers ±3mV input offset voltage over temperature, and provides 200kHz small-signal bandwidth at G = 50 - critical for fast overcurrent detection in EV power distribution units and ADAS domain controllers.

Technical Context

The ZXCT1086QE5TA implements a high-impedance current-to-voltage conversion architecture with independent supply and common-mode voltage domains: VCC (2.7–60V) powers internal circuitry while VS+ and VS− tolerate up to 65V absolute maximum, enabling direct placement between battery rail and load without ground disruption. Its output stage delivers a buffered voltage proportional to sensed differential voltage across an external shunt.

Unlike transconductance variants (e.g., ZXCT1082Q), it uses no external gain-setting resistors - fixed 50× gain is internally trimmed and temperature-compensated (±100ppm/°C gain drift), ensuring stable scaling across automotive thermal cycles. CMRR and PSRR both exceed 80dB over 0.1Hz–100kHz, supporting accurate sensing amid noisy 12V/24V bus transients.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain	Fixed 50× V/V - enables direct interface with 12-bit ADCs using 10mV–200mV sense voltage range.
Common-mode input range	2.7V to 60V - supports high-side monitoring on 48V mild-hybrid and 24V commercial vehicle rails.
Input offset voltage	±3mV max over −40°C to +125°C - limits current measurement error to <±0.6% at 60mV full-scale sense voltage.
Small-signal bandwidth	200kHz at G = 50 - resolves fast load transients such as solenoid switching or motor stall events.
Quiescent current	0.6µA typical - reduces self-heating and preserves accuracy in always-on battery monitoring circuits.
Output noise voltage	730µVRMS (0.1Hz–100kHz) - ensures sub-10µA RMS current resolution with 100mΩ shunt.
AEC-Q100 qualification	Grade 1 (−40°C to +125°C junction) - certified for engine bay, transmission control, and body electronics applications.

Pinout & Package

SOT25 (5-pin small-outline transistor) package with gull-wing leads, RoHS-compliant green molding compound, and 8mm tape-and-reel packaging (3000 units/reel). Pin 1 marked by dot; recommended pad layout per AP02001.

Pin/Terminal	Circuit Role	Design Meaning
1 (OUT)	Voltage output terminal	Delivers buffered analog output VOUT = 50 × (VS+ − VS−); drives 10kΩ min load; rail-to-rail swing limited to VS− − 1V.
2 (GND)	Analog ground reference	Return path for internal biasing; must be connected to system ground plane with low-inductance trace.
3 (S+)	High-side sense input (+)	Connects directly to VSUPPLY side of shunt resistor; withstands up to 65V absolute voltage.
4 (S−)	High-side sense input (−)	Connects directly to VLOAD side of shunt resistor; common-mode range matches S+; differential input limited to ±800mV.
5 (VCC)	Analog supply input	Powers internal amplifier and reference; accepts 2.7–60V; decoupling capacitor (100nF) required near pin.

Key Features

Feature	Design Value
Fixed-gain architecture	Eliminates external gain resistors - reduces BOM count, PCB area, and trimming uncertainty in production.
Ultra-low quiescent current	0.6µA enables continuous battery monitoring in sleep-mode vehicle networks without measurable drain.
High common-mode rejection	80–100dB CMRR across 0.1Hz–1MHz ensures immunity to battery ripple and alternator noise.
Automotive thermal robustness	Specified performance from −40°C to +125°C ambient - validated for under-hood placement in junction boxes.
Supply rejection stability	80–100dB PSRR maintains gain accuracy despite 2.7–60V VCC variation - essential for start-stop systems.

Applications

Automotive Battery Monitoring

EV Power Distribution Unit

Use Scenario: Real-time monitoring of 12V auxiliary battery state-of-charge during engine-off periods in start-stop vehicles.

IC Role / Device Role / Timing Role: High-side current sensor measuring charge/discharge current through isolated shunt placed between battery positive and load distribution point.

Use Value: Enables microamp-level current resolution over full temperature range, supporting ISO 16750-2 load dump immunity and PPAP-compliant diagnostics.

Use Scenario: Overcurrent protection for 48V DC-DC converters feeding ADAS ECUs in mild-hybrid architectures.

IC Role / Device Role / Timing Role: Fast-response current monitor feeding fault logic in <5µs settling time, interfacing directly with MCU's analog comparator or ADC.

Use Value: 200kHz bandwidth and 730µVRMS noise allow detection of 5A fault currents with <1% error at 100mΩ shunt, meeting ASIL-B timing requirements.

Commercial Vehicle Lighting Control

Industrial 24V PLC I/O Module

Use Scenario: LED headlamp driver current regulation and open-circuit fault detection in Class 8 truck lighting systems.

IC Role / Device Role / Timing Role: High-side monitor placed upstream of PWM driver FET, providing feedback for closed-loop current control and short-circuit shutdown.

Use Value: 60V common-mode range accommodates 28V nominal rail with 100V load-dump transients; ±3mV offset ensures ±0.5A accuracy at 10A full scale.

Use Scenario: Precision current measurement for 24V solenoid valve actuation in factory automation control cabinets.

IC Role / Device Role / Timing Role: Isolated high-side sensor interfacing with isolated sigma-delta ADC, eliminating ground loop errors in multi-channel I/O backplanes.

Use Value: Independent VCC and common-mode domains prevent measurement corruption during simultaneous channel switching; AEC-Q100 qualification ensures long-term reliability in harsh environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side current monitoring applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX40056ASA+T	Fixed 20× gain, 65V common-mode, 1.2µA IQ, SO-8 package	Larger footprint; lower gain requires higher sense voltage or post-amplification	Preferred when board space allows SO-8 and lower gain simplifies signal chain design
TSC2101IYCT	Fixed 100× gain, 60V common-mode, 1.5µA IQ, SOT23-5 package	Higher gain increases sensitivity to shunt tolerance and noise; not AEC-Q100 qualified	Selected for cost-sensitive non-automotive industrial use where 100× scaling meets resolution needs

Compared with MAX40056ASA+T and TSC2101IYCT, ZXCT1086QE5TA uniquely balances AEC-Q100 Grade 1 compliance, 50× gain optimized for 10–200mV shunt drops, and ultra-low 0.6µA supply current - making it the only choice for always-on, thermally constrained automotive battery monitors requiring PPAP documentation.

Availability

ZXCT1086QE5TA is available at Aetrix Electronics and suitable for automotive battery management, EV power distribution units, commercial vehicle lighting control, and industrial 24V PLC I/O modules requiring stable component supply across extended temperature and lifecycle requirements.

Supply support for ZXCT1086QE5TA 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.

ZXCT1086QE5TA belongs to the ZXCT108xQ automotive current monitor product line, designed specifically for high-accuracy, high-voltage, high-side current sensing in safety-critical vehicle subsystems requiring AEC-Q100 qualification and PPAP support.

FAQ

What is the maximum allowable differential input voltage (VSENSE) for ZXCT1086QE5TA?

The maximum differential input voltage is ±800mV, as specified in Absolute Maximum Ratings. Operation beyond this limit risks exceeding the ±12mA input current rating at S+ or S− pins. For reliable linear operation, VSENSE should remain within 0–500mV per Recommended Operating Conditions, with optimal accuracy achieved between 10mV and 200mV.

Can ZXCT1086QE5TA operate with VCC disconnected while sensing current?

No. VCC must be powered for internal circuitry to function. The device draws only 0.6µA from VCC, but without supply voltage, OUT remains undefined and no valid output is generated. The S+ and S− inputs are not functional without VCC bias, and common-mode voltage tolerance does not extend to unpowered operation.

How does the output voltage range relate to the S− pin voltage?

VOUT swings from 0V to (VS− − 0.8V) minimum, with upper limit capped at VS− − 1V per Electrical Characteristics. This rail-to-rail limitation relative to VS− - not ground - ensures compatibility with floating shunt configurations. For example, if VS− = 12V, VOUT ranges from 0V to 11.2V, enabling direct interface with 12V-tolerant ADC references.

Is external filtering required on the OUT pin for automotive EMC compliance?

A 100Ω series resistor plus 100pF capacitor to ground is recommended per Diodes' application guidance to suppress RF coupling above 30MHz. This RC filter (fc ≈ 16MHz) preserves 200kHz signal bandwidth while attenuating AM-band emissions. Layout best practices - including short traces, ground plane beneath OUT, and separation from noisy digital lines - are equally critical for CISPR 25 Class 5 compliance.

ZXCT1086QE5TA Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Current Monitor

Sensing Method:: High-Side

Accuracy:: ±2%

Voltage - Input:: 2.7V ~ 60V

Current - Output:: -

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-25

ZXCT1086QE5TA FAQ

1.How can I place an order for ZXCT1086QE5TA through Aetrix?

Please submit a Request for Quotation (RFQ) for ZXCT1086QE5TA 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 ZXCT1086QE5TA reliable?

The price and inventory of ZXCT1086QE5TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXCT1086QE5TA is usually 5 days.

3.What payment methods are accepted for ZXCT1086QE5TA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXCT1086QE5TA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ZXCT1086QE5TA?

ZXCT1086QE5TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ZXCT1086QE5TA 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 ZXCT1086QE5TA?

For technical support, including ZXCT1086QE5TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXCT1086QE5TA requirements.

6.How does Aetrix verify that ZXCT1086QE5TA is sourced from the original manufacturer or authorized distributors?

All ZXCT1086QE5TA 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 ZXCT1086QE5TA meets industry standards.

7.What is the process for return or replacement of ZXCT1086QE5TA?

All ZXCT1086QE5TA units undergo pre-shipment inspection (PSI). If there is an issue with ZXCT1086QE5TA, 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 ZXCT1086QE5TA part is unused and in its original packaging.

Return procedure for ZXCT1086QE5TA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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