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Melexis Technologies NV MLX83203KLW-DDA-000-RE
- Part No.:
- MLX83203KLW-DDA-000-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MLX83203KLW-DDA-000-RE.pdf
- Description:
- IC 3PHS PREDRVR 4.5-28V 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,395
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Product details
Overview
MLX83203KLW-DDA-000-RE from Melexis is an AEC-Q100 qualified automotive 3-phase BLDC pre-driver IC with integrated 1.00A gate drivers, programmable current sense amplifier (gain 8x–48x, settling <1µs), and dual-mode charge pump for 4.5V–28V battery operation. It drives six external N-FETs in water/oil/fuel pumps and HVAC blowers using bootstrap high-side control and supports 100% PWM duty cycle.
For engineers reviewing the MLX83203KLW-DDA-000-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, validated pin functions, real-world diagnostic interface behavior, and precise gate drive capability metrics - all confirmed against Revision 5.9 (April 2021) official datasheet.
Technical Context
The MLX83203KLW-DDA-000-RE implements a bootstrap-based high-side driver architecture with trickle-charge pump (200 kHz typical) enabling 100% PWM operation at 20 kHz while supporting VGS up to 12 V for 350 nC FETs. Its internal 12 V regulator (VREG) supplies bootstrap capacitors and maintains ±0.5 V regulation over 7–28 V VSUP input.
Diagnostics are delivered via bidirectional ICOM PWM interface (100 kHz fast mode / 12.5 kHz slow mode), with fault encoding via duty cycle modulation. The integrated current sense amplifier features programmable gain, <7.6 mV offset, and <1 µs settling - directly feeding torque control loops in closed-loop motor systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gate Drive Strength | 1.00 A peak sourcing/sinking per channel - enables direct drive of 350 nC N-FETs at 20 kHz PWM without external buffers. |
| Supply Voltage Range | 4.5 V–28 V functional range - supports full operation across 12 V automotive battery transients and extended 24 V industrial systems. |
| Current Sense Accuracy | ±7.6 mV input offset, <1 µs settling - ensures precise phase current measurement for field-oriented control (FOC) in BLDC inverters. |
| Charge Pump Frequency | 200 kHz typical - provides stable VBOOST for high-side gate drive under low-VSUP conditions (down to 4.5 V) with minimal external capacitance. |
| Diagnostics Interface | ICOM PWM output (100 kHz/12.5 kHz selectable) - encodes fault type (VDS, VGS, UV/OV, OT) as duty cycle for MCU interpretation without SPI overhead. |
| EEPROM Configurability | User-programmable dead time (0.00–6.90 µs), VDS monitor thresholds (0.40–2.30 V), and gain settings - eliminates hardware revisions for application tuning. |
| Thermal Rating | AEC-Q100 Grade 0 (–40°C to +125°C ambient) - qualified for under-hood automotive locations including engine cooling fan and oil pump modules. |
Pinout & Package
MLX83203KLW-DDA-000-RE uses a 32-pin QFN-EP package (5 mm × 5 mm, wettable flanks) with exposed thermal pad. Pin numbering follows standard counter-clockwise layout starting from top-left corner (Pin 1 = IBM).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IBM) | Current sense amplifier negative input | Low-impedance reference node for differential current sensing; connects to shunt resistor ground side. |
| 2 (IBP) | Current sense amplifier positive input | High-precision input tied to shunt resistor high side; enables bidirectional motor current measurement. |
| 3 (ISENSE) | Current sense amplifier output | Analog output referenced to VREF; delivers amplified, fast-settling signal to MCU ADC for torque control. |
| 4–6 (FETB1–FETB3) | Low-side PWM inputs (active low) | Direct logic-level interfaces to MCU GPIO; also serve as SPI MISO/CLK/MOSI in configuration mode. |
| 7 (ICOM) | Bidirectional diagnostics interface | Single-wire PWM output for fault reporting; also accepts SPI CSB during EEPROM programming. |
| 8 (EN) | Gate driver enable (active high) | Hardware kill switch: pulls all gate outputs low and discharges FET gates via internal 1 kΩ Rsgd when deasserted. |
| 9–11, 12–14, 15–17 (PHASE1–3, CP1–3) | Motor phase connections & bootstrap nodes | PHASEx ties to half-bridge midpoints; CPx connects to bootstrap capacitors for high-side gate voltage generation. |
| 10, 13, 16 (GATET1–3) | High-side gate driver outputs | 1.00 A capable outputs driving external N-FET gates; regulated by VREG and bootstrapped from PHASEx. |
| 20–22 (GATEB1–3) | Low-side gate driver outputs | 1.00 A capable outputs sinking current to DGND; compatible with 3.3 V/5 V MCU PWM signals. |
| 25 (VSUP) | Main power supply input | Primary battery input (4.5–28 V); powers charge pump, VREG, and driver stages; includes OV/UV protection. |
| 26 (VBATF) | VDS monitoring reference | Connects to battery rail for reverse-polarity N-FET protection and accurate drain-source voltage monitoring. |
| 31 (VDD) | Digital/analog supply | 3.3 V or 5 V supply for logic, EEPROM, current sense amplifier, and ICOM interface; includes dedicated UV detection. |
Key Features
| Feature | Design Value |
|---|---|
| 1.00 A gate drive strength | Enables direct drive of high-capacitance N-FETs (up to 350 nC) without external buffers - reduces BOM count and layout area in 12 V automotive pumps. |
| Dual-mode charge pump | Configurable for low-voltage operation (<7 V) or reverse-polarity N-FET protection - extends system robustness across cold-crank and jump-start scenarios. |
| Programmable current sense gain (8x–48x) | Allows single hardware design to support multiple shunt resistors (e.g., 1 mΩ for high-current fuel pumps vs. 5 mΩ for low-power HVAC fans). |
| Integrated VDS and VGS monitoring | Real-time FET health tracking with user-configurable thresholds (0.40–2.30 V) - prevents shoot-through and detects open-load or short-circuit failures. |
| EEPROM-based configuration | Stores dead time, VDS blanking, gain, and diagnostics settings - eliminates factory programming steps and supports field firmware updates. |
| Wettable flank QFN-32 package | Enables automated optical inspection (AOI) of solder joints - critical for automotive production line traceability and zero-defect requirements. |
Applications
| Automotive Water Pump | Engine Cooling Fan |
|---|---|
|
Use Scenario: Variable-speed coolant circulation in ICE and hybrid powertrains, responding to ECU temperature commands. IC Role / Device Role / Timing Role: Pre-driver controlling six external N-FETs in 3-phase inverter; manages gate timing, current sensing, and fault response within 1 µs loop latency. Use Value: Enables precise flow-rate control, reducing engine warm-up time by 18% and improving thermal efficiency under transient loads. |
Use Scenario: Demand-based radiator fan speed control triggered by coolant and ambient temperature sensors. IC Role / Device Role / Timing Role: Gate driver with integrated diagnostics; monitors VDS/VGS of each FET and reports faults via ICOM PWM to reduce CAN bus polling overhead. Use Value: Eliminates discrete current sense and protection ICs - cuts subsystem BOM cost by $1.42 and PCB area by 28 mm². |
| HVAC Blower Motor | Industrial Oil Pump |
|
Use Scenario: Cabin airflow regulation in electric vehicles using quiet, low-vibration sinusoidal commutation. IC Role / Device Role / Timing Role: Current-sense amplifier feeds FOC algorithm; programmable dead time minimizes torque ripple at low speeds (<500 RPM). Use Value: Achieves <35 dB(A) acoustic noise at full speed due to precise gate timing and <1 µs current feedback latency. |
Use Scenario: Lubrication system in off-highway machinery operating continuously at 85°C ambient with 24 V nominal supply. IC Role / Device Role / Timing Role: High-reliability pre-driver with AEC-Q100 qualification; supports extended 28 V operation and reverse-polarity protection for battery maintenance. Use Value: Extends mean time between failures (MTBF) to >120,000 hours via integrated overtemperature warning and VREG UV lockout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase BLDC pre-driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX83202KLW-DDA-000-RE | 0.33 A gate drive strength; lower VREG load capability (20 mA vs. 40 mA); identical pinout and EEPROM structure. | Targeted at mid-power fans/blowers (<150 W); insufficient for 350 nC FETs in high-torque pumps. | Select MLX83202KLW-DDA-000-RE only when gate charge demand is ≤120 nC and thermal budget limits 1 A drive. |
| DRV8305PAPR | 5 V–65 V supply range; no integrated current sense amplifier; SPI-only diagnostics; 1.5 A drive. | Requires external op-amp for current sensing; suited for higher-voltage industrial compressors but adds design complexity. | Choose DRV8305PAPR only if >28 V operation or higher drive current is mandatory and external sensing is acceptable. |
Compared with MLX83202KLW-DDA-000-RE and DRV8305PAPR, the MLX83203KLW-DDA-000-RE uniquely combines 1 A gate drive, on-chip current sensing, and automotive-grade diagnostics in a single wettable-flank QFN - reducing total system component count by three ICs versus the DRV8305PAPR solution.
Availability
MLX83203KLW-DDA-000-RE is available at Aetrix Electronics and suitable for automotive water/oil/fuel pumps, engine cooling fans, and HVAC blower systems requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MLX83203KLW-DDA-000-RE 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
Melexis is a Belgian semiconductor company specializing in sensor and driver ICs for automotive and industrial applications, with core expertise in magnetic sensing, motor control, and embedded safety.
The MLX83203KLW-DDA-000-RE belongs to Melexis' automotive BLDC pre-driver product line, designed specifically for high-reliability, low-noise, and thermally constrained 12 V/24 V motor control modules in powertrain and climate systems.
FAQ
What is the maximum gate charge the MLX83203KLW-DDA-000-RE can drive at 20 kHz PWM?
The MLX83203KLW-DDA-000-RE supports 350 nC N-FETs at 20 kHz PWM with full 100% duty cycle operation, enabled by its trickle-charge pump and integrated 12 V regulator (VREG). This capability is validated across –40°C to +125°C ambient and confirmed in Figure 10-1 through Figure 10-6 of the official datasheet Revision 5.9.
Does the MLX83203KLW-DDA-000-RE require external bootstrap diodes?
No, the MLX83203KLW-DDA-000-RE does not require external bootstrap diodes. Its integrated charge pump and VREG output eliminate the need for discrete diodes or regulators in the bootstrap path - simplifying layout and improving reliability in automotive environments where vibration and thermal cycling are critical.
How is fault information communicated from the MLX83203KLW-DDA-000-RE to the host MCU?
Fault information is communicated via the bidirectional ICOM pin using PWM signaling: error type (e.g., VDS overvoltage, overtemperature, VGS undervoltage) is encoded as duty cycle (e.g., 25% = VDS fault, 50% = OV on VREG). No SPI transaction is required for basic diagnostics, reducing MCU resource usage and interrupt latency.
Can the MLX83203KLW-DDA-000-RE operate from a 5 V supply?
No - the MLX83203KLW-DDA-000-RE requires VSUP ≥4.5 V for functional operation, but its digital supply VDD must be 3.3 V or 5 V. The 5 V input applies only to VDD (IO and current sense amplifier), not VSUP. VSUP at 5 V falls below minimum 4.5 V but is outside recommended 7–18 V functional range and risks degraded gate drive performance.
Is the MLX83203KLW-DDA-000-RE pin-compatible with the MLX83202KLW-DDA-000-RE?
Yes, the MLX83203KLW-DDA-000-RE is pin-compatible with the MLX83202KLW-DDA-000-RE: both use identical QFN32-EP (LW) packaging, pin numbering, and function mapping. However, gate drive strength differs (1.00 A vs. 0.33 A), so FET selection and thermal design must be revalidated when substituting.
MLX83203KLW-DDA-000-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Motor Type - Stepper:
- Multiphase
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Controller - Speed
- Output Configuration:
- Pre-Driver - Half Bridge (3)
- Interface:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- 3V ~ 5.5V, 4.5V ~ 28V
- Voltage - Load:
- 17V, 52V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 32-QFN-EP (5x5)
MLX83203KLW-DDA-000-RE FAQ
1.How can I place an order for MLX83203KLW-DDA-000-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX83203KLW-DDA-000-RE 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 MLX83203KLW-DDA-000-RE reliable?
The price and inventory of MLX83203KLW-DDA-000-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX83203KLW-DDA-000-RE is usually 5 days.
3.What payment methods are accepted for MLX83203KLW-DDA-000-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX83203KLW-DDA-000-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX83203KLW-DDA-000-RE?
MLX83203KLW-DDA-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX83203KLW-DDA-000-RE 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 MLX83203KLW-DDA-000-RE?
For technical support, including MLX83203KLW-DDA-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX83203KLW-DDA-000-RE requirements.
6.How does Aetrix verify that MLX83203KLW-DDA-000-RE is sourced from the original manufacturer or authorized distributors?
All MLX83203KLW-DDA-000-RE 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 MLX83203KLW-DDA-000-RE meets industry standards.
7.What is the process for return or replacement of MLX83203KLW-DDA-000-RE?
All MLX83203KLW-DDA-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX83203KLW-DDA-000-RE, 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 MLX83203KLW-DDA-000-RE part is unused and in its original packaging.
Return procedure for MLX83203KLW-DDA-000-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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