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Diodes Incorporated ZXCT1086E5TA
- Part No.:
- ZXCT1086E5TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Current Regulation/Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ZXCT1086E5TA.pdf
- Description:
- IC CURRENT MONITOR SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:8,512
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Product details
Overview
ZXCT1086E5TA from Diodes Incorporated is a precision high-side current monitor IC with fixed 50× voltage gain, 60V max common-mode input range, 0.6µA quiescent current, ±3mV input offset voltage (−40°C to +125°C), and AEC-Q100 Grade 1 qualification-designed for automotive battery management and industrial 24–28V rail overcurrent monitoring.
For engineers reviewing the ZXCT1086E5TA datasheet, ZXCT1086E5TA pinout, ZXCT1086E5TA application, or ZXCT1086E5TA equivalent, this device delivers high-accuracy unipolar current sensing without ground-plane disruption, supports load-dump robustness in automotive environments, and enables low-power, high-CMRR (≥80 dB) measurement across extended temperature ranges.
Technical Context
The ZXCT1086E5TA implements a high-voltage current-sense amplifier architecture with independent supply and common-mode voltage domains: VCC (2.7–60V) powers internal circuitry while S+ and S− tolerate up to 65V absolute maximum common-mode voltage. Its fixed-gain transimpedance core converts differential sense voltage (0–500mV) into a proportional output voltage referenced to VS−.
It operates with zero external gain-setting resistors-unlike ZXCT1082/83-and achieves 50 V/V gain with ±2% error over −40°C to +125°C, 125kΩ output impedance, and 200kHz small-signal bandwidth at G = 50. CMRR and PSRR both exceed 80dB across 0.1Hz–100kHz, enabling stable operation in noisy industrial and automotive power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | Fixed 50 V/V - eliminates external resistor network, reduces BOM count and layout sensitivity. |
| Common-Mode Input Range | 2.7V to 60V - supports direct high-side sensing on 24V/28V industrial and 12V automotive systems without level-shifting. |
| Input Offset Voltage | ±3 mV (−40°C to +125°C) - ensures ≤6% full-scale error at 500mV sense range, critical for accurate low-current detection. |
| Quiescent Current | 0.6 µA - minimizes self-heating and system power loss, enabling always-on monitoring in battery-backed applications. |
| Output Impedance | 125 kΩ - compatible with standard ADC input stages and RC filtering without buffer amplification. |
| Small-Signal Bandwidth | 200 kHz at G = 50 - supports real-time response to fast load transients (e.g., motor startup, solenoid actuation). |
| CMRR / PSRR | ≥80 dB (−40°C to +125°C) - rejects noise from shared power rails and high dv/dt switching nodes in motor drives and DC/DC converters. |
Pinout & Package
SOT25 (5-pin SC-74A) package: compact 2.8mm × 1.6mm footprint with exposed pad for thermal performance; RoHS-compliant, halogen-free, AEC-Q100 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Voltage output terminal | Delivers VOUT = 50 × VSENSE referenced to VS−; drives ADCs or comparator inputs directly. |
| 2 (GND) | Analog ground reference | Provides internal bias reference; must be connected to system ground near sense resistor return path. |
| 3 (S+) | High-side sense input (+) | Connects directly to VSUPPLY side of shunt resistor; tolerates up to 65V common-mode voltage. |
| 4 (S−) | High-side sense input (−) | Connects directly to VLOAD side of shunt resistor; defines differential sense node with S+. |
| 5 (VCC) | Analog supply input | Powers internal amplifier; operates independently from S+/S− common-mode voltage (2.7–60V range). |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 50× gain architecture | Eliminates external gain-setting resistors-reduces component count, layout area, and gain drift due to resistor tolerance/TC. |
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient temperatures (−40°C to +125°C) and stress testing-enables use in engine bay and battery monitoring modules. |
| 60V common-mode input capability | Enables direct high-side sensing on 24V/28V industrial rails and 12V automotive systems without isolation or level shifters. |
| 0.6µA quiescent current | Supports ultra-low-power always-on current monitoring in battery-powered telematics and energy storage systems. |
| Load-dump tolerant design | Withstands ISO 7637-2 pulse 5a (12V systems) per typical application data-critical for automotive ECU integration. |
Applications
| Automotive Battery Management | Industrial 24V Power Distribution |
|---|---|
Use Scenario: Real-time monitoring of starter battery charge/discharge current in 12V vehicle electrical systems. IC Role / Device Role / Timing Role: High-side current sensor converting shunt voltage to amplified analog output for MCU ADC sampling. Use Value: Enables state-of-charge estimation and overcurrent protection without ground-loop interference or PCB plane cuts. |
Use Scenario: Monitoring branch currents in programmable logic controller (PLC) backplane power supplies. IC Role / Device Role / Timing Role: Precision current monitor feeding analog inputs of industrial I/O modules for fault detection. Use Value: Provides ±1% full-scale accuracy across −40°C to +85°C, supporting predictive maintenance and redundancy validation. |
| Overcurrent Protection Circuit | Current Source Calibration |
Use Scenario: Fast-response overcurrent detection in 28V avionics power converters before MOSFET failure. IC Role / Device Role / Timing Role: Analog front-end sensor triggering comparator-based shutdown within <5µs for 50mV–300mV steps. Use Value: 200kHz bandwidth and 0.6µA IQ enable rapid trip decisions while minimizing standby power draw. |
Use Scenario: Calibrating precision current sources in automated test equipment (ATE) for semiconductor characterization. IC Role / Device Role / Timing Role: Reference-grade current measurement feedback element in closed-loop source control loops. Use Value: ±3mV offset and 80dB CMRR ensure sub-0.1% gain error stability under varying supply and load conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4080TASA+ | 50V max common-mode, 25/50/100V/V selectable gain, 125µA IQ, SO8 package | Requires external gain resistors; higher IQ limits battery use; larger footprint | Select when multi-gain flexibility or SO8 assembly compatibility is required over ultra-low IQ. |
| INA240A1QDRQ1 | 80V max common-mode, 20V/V fixed gain, 2.4mA IQ, SO8 package, integrated EMI filter | Higher IQ increases power loss; wider CMR suits 48V EV systems; no SOT25 option | Select for 48V battery systems requiring >60V CMR or enhanced EMI immunity in noisy motor drive environments. |
Compared with MAX4080TASA+ and INA240A1QDRQ1, ZXCT1086E5TA offers the lowest quiescent current (0.6µA vs. 125µA/2.4mA) and smallest SOT25 footprint-making it optimal for space-constrained, always-on automotive and industrial monitoring where power and board area are critical.
Availability
ZXCT1086E5TA is available at Aetrix Electronics and suitable for automotive battery management, industrial 24V power distribution, and overcurrent protection circuits requiring stable component supply, AEC-Q100 compliance, and extended temperature operation.
Supply support for ZXCT1086E5TA 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 power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
ZXCT1086E5TA belongs to the ZXCT108x high-side current monitor product line, engineered specifically for precision, low-power, high-CMRR current sensing in harsh automotive and industrial environments-prioritizing AEC-Q100 qualification, wide voltage range, and minimal external components.
FAQ
What is the maximum sense resistor voltage (VSENSE) the ZXCT1086E5TA can accurately measure?
The ZXCT1086E5TA supports a differential input voltage range of 0–500mV. At 50× gain, this yields a 0–25V output swing referenced to VS−. Operation beyond 500mV risks nonlinearity and saturation; datasheet specifies guaranteed linearity only up to 500mV with ≤1% gain error.
Can ZXCT1086E5TA operate with VCC lower than the common-mode voltage at S+ or S−?
Yes. VCC (2.7–60V) and the S+/S− common-mode voltage (up to 65V) are fully independent. The device functions correctly even when VCC = 3.3V while S+ = 48V-enabling low-voltage MCU interfacing in high-voltage systems without level shifters.
How does the ZXCT1086E5TA handle reverse polarity or negative VSENSE?
The ZXCT1086E5TA is a unipolar current monitor: it only responds to positive VSENSE (S+ > S−). Negative differential input is not supported-output clamps near VS−, and sustained reverse voltage may exceed absolute maximum ratings. Bidirectional sensing requires dual-supply or dedicated bidirectional ICs.
Is an external output capacitor required for stability with ZXCT1086E5TA?
No external capacitor is required for basic stability. The 125kΩ output impedance allows direct connection to 1MΩ+ ADC inputs. For noise filtering or driving capacitive loads >100pF, a series 10–100Ω resistor plus 1–10nF capacitor to ground is recommended-per Figure 11 in DS32162 Rev. 2-2.
ZXCT1086E5TA 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:
- -
- 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
ZXCT1086E5TA FAQ
1.How can I place an order for ZXCT1086E5TA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXCT1086E5TA 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 ZXCT1086E5TA reliable?
The price and inventory of ZXCT1086E5TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXCT1086E5TA is usually 5 days.
3.What payment methods are accepted for ZXCT1086E5TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXCT1086E5TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXCT1086E5TA?
ZXCT1086E5TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXCT1086E5TA 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 ZXCT1086E5TA?
For technical support, including ZXCT1086E5TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXCT1086E5TA requirements.
6.How does Aetrix verify that ZXCT1086E5TA is sourced from the original manufacturer or authorized distributors?
All ZXCT1086E5TA 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 ZXCT1086E5TA meets industry standards.
7.What is the process for return or replacement of ZXCT1086E5TA?
All ZXCT1086E5TA units undergo pre-shipment inspection (PSI). If there is an issue with ZXCT1086E5TA, 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 ZXCT1086E5TA part is unused and in its original packaging.
Return procedure for ZXCT1086E5TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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