My Inquiry
My Account
Diodes Incorporated ZXCT215QCDW-7
- Part No.:
- ZXCT215QCDW-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Current Regulation/Management
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
ZXCT215QCDW-7.pdf
- Description:
- CM VOLTAGE OUTPUT SOT363 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,995
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ZXCT215QCDW-7 from Diodes Incorporated is an automotive-grade, zero-drift, high-precision current-shunt monitor with 75V/V fixed gain, ±60μV max offset voltage, and ±0.5% max gain error over -40°C to +125°C. It operates from 2.7V to 26V supply, supports -0.3V to 26V common-mode input, and delivers rail-to-rail output for ADC interfacing in high-voltage battery management systems.
For engineers reviewing the ZXCT215QCDW-7 datasheet, ZXCT215QCDW-7 pinout, ZXCT215QCDW-7 application, or ZXCT215QCDW-7 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, 75V/V gain optimized for 10mV shunt drops, low 100μA quiescent current, and SOT363 package suitability for space-constrained automotive PCB layouts.
Technical Context
This device implements a precision zero-drift chopper-stabilized amplifier architecture to achieve ±0.5% gain error and ±60μV offset across full automotive temperature range. Its input stage handles differential shunt voltages as low as ±5mV while rejecting common-mode signals up to 26V - enabling accurate high-side current sensing in 48V/800V EV subsystems.
The REF pin accepts externally applied bias (0V to V+) to support bidirectional current measurement, and the rail-to-rail output drives 10kΩ loads within 50mV of supply rails. Internal post-trim manufacturing ensures stable 10ppm/°C gain drift and 95dB CMRR at 26V common-mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 75V/V - scales 10mV shunt drop to 0.75V output, enabling high-resolution ADC sampling without external amplification |
| Offset Voltage (max) | ±60μV - contributes <0.08% error at 75mV full-scale shunt voltage, critical for sub-amp current resolution |
| Gain Error (max) | ±0.5% - guaranteed over -40°C to +125°C, eliminating calibration across thermal extremes in BMS modules |
| Common-Mode Range | -0.3V to 26V - supports direct high-side sensing on 12V/24V/48V rails without level-shifting circuitry |
| Supply Current (max) | 100μA - enables always-on monitoring in low-power vehicle body control ECUs with minimal battery drain |
| CMRR | 95dB - suppresses noise from switching regulators in ADAS power domains during high-dV/dt transients |
| Bandwidth | 40kHz - sufficient for real-time response to motor phase current changes in e-pump and e-compressor control |
Pinout & Package
Package: 6-pin SOT363 (2.2mm × 2.1mm × 1.0mm), RoHS-compliant, halogen-free, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - REF | Analog input | Bias reference for bidirectional operation; sets output midpoint - must connect to low-impedance source (e.g., resistor divider) to avoid gain/offset errors |
| 2 - GND | Ground | Power and signal return path; requires dedicated low-inductance PCB plane connection to minimize measurement noise |
| 3 - V+ | Power supply | Single 2.7V–26V supply input; bypass capacitor (≥100nF) required adjacent to pin for stability under load transients |
| 4 - IN+ | Analog input | Connects to high-potential side of shunt resistor; sensitive to PCB trace inductance - place as close as possible to shunt |
| 5 - IN− | Analog input | Connects to low-potential side of shunt resistor; matched layout with IN+ essential to preserve CMRR and gain accuracy |
| 6 - OUT | Analog output | Voltage proportional to load current (VOUT = 75 × VSENSE + VREF); rail-to-rail swing supports direct interface with 3.3V/5V ADCs |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient temperatures (-40°C to +125°C) and PPAP-capable production in IATF 16949 facilities |
| Zero-drift architecture | 0.1μV/°C typical offset drift enables stable microamp-level current resolution over full life cycle without recalibration |
| 10mV full-scale shunt support | Reduces power loss in 50A–200A battery paths by minimizing I²R dissipation versus conventional 50mV+ sense resistors |
| Rail-to-rail output | Delivers 0.005V to (V+)–0.05V swing into 10kΩ load - maximizes dynamic range for 12-bit ADCs in cost-sensitive ECUs |
| Low 100μA quiescent current | Enables continuous current monitoring in always-on vehicle domains (e.g., parking mode BMS) without compromising battery standby time |
Applications
| EV Battery Management System (BMS) | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time bidirectional current monitoring during battery charge/discharge cycles in 400V/800V traction packs. IC Role / Device Role / Timing Role: High-side current sensor converting shunt voltage to conditioned analog output for MCU ADC sampling at 1–10kHz rates. Use Value: ±0.5% gain error and ±60μV offset ensure ≤1.5A absolute accuracy at 300A full scale, meeting ISO 26262 ASIL-B diagnostic requirements. |
Use Scenario: Load current supervision for smart fuses controlling lighting, HVAC, and window motors in centralized BCMs. IC Role / Device Role / Timing Role: Low-side current monitor providing fault detection and energy accounting via 3.3V ADC interface. Use Value: 100μA supply current allows integration into always-on domains; 26V common-mode range accommodates 24V commercial vehicle architectures. |
| Electric Power Steering (EPS) | ADAS Radar Power Supply Monitoring |
|
Use Scenario: Motor phase current feedback in brushless EPS controllers requiring precise torque estimation and overcurrent protection. IC Role / Device Role / Timing Role: High-bandwidth (40kHz) current amplifier feeding closed-loop PWM control loop with <1μs propagation delay. Use Value: 40kHz bandwidth supports fast transient response to steering torque changes; zero-drift topology maintains accuracy across motor heating cycles. |
Use Scenario: Input current monitoring for 77GHz radar MMIC power supplies to detect early-stage DC-DC converter degradation. IC Role / Device Role / Timing Role: High-common-mode monitor on 12V input rail, rejecting switching noise from adjacent buck converters. Use Value: 95dB CMRR suppresses 100mVpp ripple at 500kHz switching frequency, preventing false overcurrent trips in safety-critical radar subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision current-sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | 100V/V gain, ±10μV offset, 2.7V–5.5V supply only, SOIC-8 package | Limited to low-voltage systems; lacks 26V common-mode capability for high-side 48V+ monitoring | Select when supply is ≤5.5V and ultra-low offset (<±10μV) is prioritized over wide common-mode range |
| MAX40056ATA+T | 75V/V gain, ±150μV offset, 2.7V–5.5V supply, 6-pin WLP package | Higher offset degrades accuracy at low shunt voltages; not AEC-Q100 qualified | Select for non-automotive industrial applications where AEC-Q100 compliance is unnecessary and board area is constrained |
Compared with INA240A1QDRQ1 and MAX40056ATA+T, ZXCT215QCDW-7 uniquely combines AEC-Q100 Grade 1 qualification, 26V common-mode tolerance, and ±0.5% gain error in a compact SOT363 - making it the only option qualified for high-side current sensing in 48V+ automotive subsystems requiring long-term stability without recalibration.
Availability
ZXCT215QCDW-7 is available at Aetrix Electronics and suitable for electric vehicle battery management systems, automotive body control modules, electric power steering units, and ADAS radar power monitoring requiring stable component supply across extended temperature ranges and automotive lifecycle demands.
Supply support for ZXCT215QCDW-7 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with core expertise in power management, signal integrity, and automotive-qualified components.
ZXCT21xQ belongs to Diodes' automotive-optimized current-sense amplifier product line, designed specifically for high-accuracy, high-common-mode current monitoring in EV powertrain, chassis, and ADAS systems operating from -40°C to +125°C.
FAQ
What is the maximum common-mode voltage the ZXCT215QCDW-7 can handle?
The ZXCT215QCDW-7 supports a common-mode input voltage range of -0.3V to 26V. This allows direct high-side current sensing on 12V, 24V, and 48V automotive rails without external level-shifting circuitry. The device maintains specified gain accuracy and CMRR across this full range at temperatures from -40°C to +125°C.
Can the ZXCT215QCDW-7 be used for bidirectional current sensing?
Yes - bidirectional operation is enabled by applying a bias voltage to the REF pin, typically set to half the supply voltage (e.g., 2.5V for 5V V+). This centers the output voltage, allowing positive and negative shunt voltage swings to produce corresponding output deviations above and below the REF level, essential for battery charge/discharge monitoring in BMS.
What is the significance of the 'C' suffix in ZXCT215QCDW-7?
The 'C' denotes the highest accuracy grade: ±0.5% maximum gain error and ±60μV maximum offset voltage over -40°C to +125°C. This grade uses post-trim manufacturing and zero-drift architecture to achieve tighter tolerances than 'A' (±0.8%) or 'B' (±0.8%) versions, making it suitable for ASIL-B–compliant automotive functions.
Does the ZXCT215QCDW-7 require external filtering for EMC robustness?
Input filtering is recommended in noisy environments: series resistors ≤10Ω at IN+ and IN− pins, paired with matching capacitors, mitigate RF interference and shunt inductance effects. Exceeding 10Ω introduces gain error due to internal bias current mismatch; the device's 40kHz bandwidth inherently filters higher-frequency noise without additional components in most applications.
ZXCT215QCDW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- ZXCT21xQ
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High/Low-Side
- Accuracy:
- ±0.5%
- Voltage - Input:
- 2.7V ~ 26V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
ZXCT215QCDW-7 FAQ
1.How can I place an order for ZXCT215QCDW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXCT215QCDW-7 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 ZXCT215QCDW-7 reliable?
The price and inventory of ZXCT215QCDW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXCT215QCDW-7 is usually 5 days.
3.What payment methods are accepted for ZXCT215QCDW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXCT215QCDW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXCT215QCDW-7?
ZXCT215QCDW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXCT215QCDW-7 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 ZXCT215QCDW-7?
For technical support, including ZXCT215QCDW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXCT215QCDW-7 requirements.
6.How does Aetrix verify that ZXCT215QCDW-7 is sourced from the original manufacturer or authorized distributors?
All ZXCT215QCDW-7 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 ZXCT215QCDW-7 meets industry standards.
7.What is the process for return or replacement of ZXCT215QCDW-7?
All ZXCT215QCDW-7 units undergo pre-shipment inspection (PSI). If there is an issue with ZXCT215QCDW-7, 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 ZXCT215QCDW-7 part is unused and in its original packaging.
Return procedure for ZXCT215QCDW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZXCT215QCDW-7 Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
