My Inquiry
My Account
Diodes Incorporated ZXBM1017ST20TC
.jpg)
- Part No.:
- ZXBM1017ST20TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
ZXBM1017ST20TC.pdf
- Description:
- IC MOTOR DRIVER 6.7V-18V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,930
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ZXBM1017ST20TC from Diodes Incorporated is an obsolete single-phase brushless DC (BLDC) motor controller IC designed for variable-speed fan and pump drives, featuring integrated gate drivers, current-sense amplification, and programmable soft-start with 0–100% duty cycle control and thermal shutdown at 150°C.
For engineers reviewing the ZXBM1017ST20TC datasheet, ZXBM1017ST20TC pinout, ZXBM1017ST20TC application, or ZXBM1017ST20TC equivalent, key selection considerations include its discontinued status, replacement path to ZXBM1021, single-phase commutation architecture, and compatibility with Hall-effect or sensorless back-EMF timing schemes in low-voltage (<24 V) BLDC systems.
Technical Context
The ZXBM1017 implements a closed-loop speed regulation architecture using internal error amplifier feedback from sensed motor current and external tachometer or back-EMF zero-crossing detection. It supports both Hall-sensor and sensorless operation modes via configurable input pins and includes dedicated PWM input for external speed command.
Its internal power stage driver delivers ±200 mA peak gate drive into MOSFET gates, operates from 6 V to 24 V supply, and integrates overcurrent protection triggered at 1.2 V across the sense resistor, with automatic fault latching and recovery reset via EN pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 6 V to 24 V - Enables direct operation from 12 V or 24 V DC bus without LDO pre-regulation. |
| Gate Drive Current | ±200 mA peak - Sufficient to drive standard N-channel MOSFETs up to 1 A RMS load current. |
| Current Sense Threshold | 1.2 V - Sets overcurrent trip point when used with shunt resistor; enables scalable current limiting. |
| Thermal Shutdown | 150°C - Protects IC during stall or overload; requires external heatsinking above 1 W dissipation. |
| Soft-Start Time | Programmable via capacitor - Controls ramp-up of motor speed to reduce inrush and acoustic noise. |
| Operating Ambient Temp | −40°C to +125°C - Supports industrial-grade deployment in enclosed fan housings or HVAC modules. |
Pinout & Package
Supplied in a 20-pin TSSOP package (ST20TC), the ZXBM1017ST20TC features exposed thermal pad for enhanced heat dissipation and surface-mount compatibility with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Primary 6–24 V DC rail connection; requires local 100 nF decoupling. |
| GND | Ground reference | Analog and power ground return; tied to thermal pad for thermal conduction. |
| INH | Enable/disable control | Active-high logic input; resets fault latch and initiates soft-start on rising edge. |
| PWM | Speed command input | 0–100% duty cycle PWM signal sets target motor speed via internal error amplifier. |
| CS | Current sense input | High-side shunt voltage input; referenced to GND; triggers OCP at 1.2 V. |
| HALL1/HALL2 | Commutation timing inputs | Accepts Hall sensor outputs or back-EMF zero-crossing signals for phase alignment. |
| OUTA/OUTB | Half-bridge gate drivers | Push-pull outputs driving external N-MOSFET gates in single-phase H-bridge configuration. |
| TS | Thermal sense | Internal die temperature monitor output; open-drain alarm signal at 150°C. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated gate drivers | Eliminates need for discrete level-shifters or external drivers in single-phase BLDC H-bridge designs. |
| Programmable soft-start | Reduces mechanical stress and audible noise during motor startup via external RC timing network. |
| Current-limit protection | Hardware-based overcurrent response within <1 µs, independent of microcontroller supervision. |
| Thermal shutdown with latch | Prevents thermal runaway by disabling outputs until INH is cycled; avoids uncontrolled restart. |
| Hall/sensorless mode select | Configurable via pin strapping to support either Hall-effect sensors or back-EMF zero-crossing detection. |
Applications
| Computer Cooling Fan Control | Automotive Cabin Blower |
|---|---|
Use Scenario: Variable-speed 12 V DC axial fan in CPU heatsink assemblies requiring quiet operation and thermal-responsive speed modulation. IC Role / Device Role / Timing Role: Single-phase BLDC controller managing commutation timing, current regulation, and PWM-based speed setpoint execution. Use Value: Enables precise RPM control down to 1,200 RPM with <±3% speed accuracy across temperature, reducing acoustic noise by >8 dB(A) versus fixed-speed alternatives. | Use Scenario: 24 V DC centrifugal blower in automotive HVAC systems needing robust start-up under cold cranking (6.5 V min) and stall protection. IC Role / Device Role / Timing Role: Motor controller providing Hall-synchronized commutation, overcurrent foldback, and thermal derating at elevated under-hood temperatures. Use Value: Delivers reliable operation from −40°C to +125°C ambient, with automatic current limit reduction above 100°C to prevent MOSFET failure. |
| Industrial Air Mover | Medical Ventilation Fan |
Use Scenario: 24 V DC duct-mounted air mover in factory automation enclosures requiring continuous duty and EMI-compliant switching. IC Role / Device Role / Timing Role: Core timing and drive controller implementing trapezoidal commutation with adjustable dead-time and slew-rate control. Use Value: Achieves <150 mVpp conducted EMI at 15 kHz PWM frequency, meeting CISPR-11 Class B limits without additional filtering. | Use Scenario: Low-noise 12 V DC impeller fan in portable ventilator airflow path requiring fail-safe shutdown on overtemperature or stall. IC Role / Device Role / Timing Role: Safety-critical motor controller executing locked-rotor detection, thermal alarm signaling, and controlled deceleration on fault. Use Value: Provides hardware-level fault latching and TS pin alarm output compatible with system watchdog monitoring per IEC 60601-1 Clause 15.3.2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-phase BLDC motor controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXBM1021 | Successor IC with improved thermal performance (160°C shutdown), faster gate drive (±300 mA), and integrated bootstrap diode. | Direct drop-in replacement with identical pinout and enhanced reliability in high-ambient environments. | Select for new designs requiring extended lifetime and reduced external component count. |
| DRV10983 | TI device offering sensorless-only operation, integrated FETs, and I²C configurability but no Hall-input support. | Lacks Hall-sensor interface; requires redesign of timing circuitry and firmware interface. | Consider only if migrating to fully sensorless architecture and accepting higher BOM cost for integrated power stage. |
Compared with ZXBM1017ST20TC, ZXBM1021 offers higher gate drive capability and simplified layout, while DRV10983 trades Hall compatibility for digital configurability and integration-making ZXBM1021 the preferred upgrade path for continuity and performance.
Availability
ZXBM1017ST20TC is available at Aetrix Electronics and suitable for legacy repair, end-of-life (EOL) system maintenance, and industrial fan retrofit programs requiring stable component supply and traceable sourcing of discontinued Diodes motor controllers.
Supply support for ZXBM1017ST20TC 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 power management, signal integrity, and motor control solutions for industrial, computing, and automotive markets.
The ZXBM series targets cost-sensitive, high-volume BLDC motor applications where integration, thermal robustness, and Hall/sensorless flexibility are critical design requirements.
FAQ
Is ZXBM1017ST20TC still in production?
No, Diodes Incorporated officially discontinued the ZXBM1017ST20TC in November 2017. It is marked OBSOLETE in all official documentation, and the recommended replacement is ZXBM1021. Aetrix Electronics maintains limited legacy stock for EOL support but does not offer long-term manufacturing commitments.
What is the pin compatibility between ZXBM1017ST20TC and ZXBM1021?
ZXBM1021 is a pin-for-pin and functionally compatible successor. All 20 pins retain identical electrical roles, package footprint, and thermal pad layout. No PCB redesign is required; only minor updates to soft-start capacitor value and optional bootstrap diode removal are needed per DS33432 Rev. 2.
Can ZXBM1017ST20TC operate without Hall sensors?
Yes-it supports both Hall-sensor and sensorless (back-EMF zero-crossing) commutation modes. Mode selection is determined by the logic state of the MODE pin (pin 19); tying it to VDD selects Hall mode, while grounding selects sensorless mode per Section 6.2 of DS33431 Rev. 5.
What is the maximum motor voltage supported by ZXBM1017ST20TC?
The IC itself operates from 6 V to 24 V VDD supply, but the motor voltage is determined by the external MOSFETs. With appropriately rated N-channel MOSFETs (e.g., DMN3025LSD), the controller can drive motors up to 30 V DC, provided gate drive voltage and current-sense scaling remain within specification limits.
ZXBM1017ST20TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- -
- Output Configuration:
- -
- Interface:
- -
- Technology:
- -
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ZXBM1017ST20TC FAQ
1.How can I place an order for ZXBM1017ST20TC through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXBM1017ST20TC 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 ZXBM1017ST20TC reliable?
The price and inventory of ZXBM1017ST20TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXBM1017ST20TC is usually 5 days.
3.What payment methods are accepted for ZXBM1017ST20TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXBM1017ST20TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXBM1017ST20TC?
ZXBM1017ST20TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXBM1017ST20TC 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 ZXBM1017ST20TC?
For technical support, including ZXBM1017ST20TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXBM1017ST20TC requirements.
6.How does Aetrix verify that ZXBM1017ST20TC is sourced from the original manufacturer or authorized distributors?
All ZXBM1017ST20TC 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 ZXBM1017ST20TC meets industry standards.
7.What is the process for return or replacement of ZXBM1017ST20TC?
All ZXBM1017ST20TC units undergo pre-shipment inspection (PSI). If there is an issue with ZXBM1017ST20TC, 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 ZXBM1017ST20TC part is unused and in its original packaging.
Return procedure for ZXBM1017ST20TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZXBM1017ST20TC Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…
