My Inquiry
My Account
Melexis Technologies NV MLX83203KLW-DDA-000-SP
- Part No.:
- MLX83203KLW-DDA-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MLX83203KLW-DDA-000-SP.pdf
- Description:
- IC 3PHS PREDRVR 4.5-28V 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,895
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MLX83203KLW-DDA-000-SP from Melexis is an AEC-Q100 qualified automotive 3-phase BLDC pre-driver IC designed to interface a 3.3V–5V microcontroller with six external N-channel power FETs. It delivers 1.00A high-side/low-side gate drive, supports 4.5V–28V battery systems, integrates a programmable current sense amplifier (gain 8x–48x, settling <1µs), and operates in sleep mode with <30µA quiescent current. It enables precise motor control in engine cooling fans and HVAC blowers.
For engineers reviewing the MLX83203KLW-DDA-000-SP datasheet, pinout, applications, or equivalent options, key selection considerations include its 32-pin QFN-EP wettable flanks package, dual charge pump modes for low-voltage operation and reverse-polarity protection, 100% PWM capability via trickle charge pump, and configurable EEPROM for driver/diagnostic tuning without hardware changes.
Technical Context
The MLX83203KLW-DDA-000-SP implements a bootstrap-based high-side gate drive architecture with integrated 12V regulator (VREG) and charge pump (VBOOST), enabling full 100% duty-cycle operation down to 4.5V supply. Its gate drivers feature programmable dead time (0.00–6.90 µs) and matched propagation delay (<±20 ns) across all three half-bridges.
It embeds a fast, low-offset current sense amplifier (±7.6 mV offset, <1 µs settling) with selectable gain and interfaces via bidirectional ICOM PWM diagnostics or optional SPI. Diagnostics include VDS/VGS monitoring of all six external FETs, over-temperature warning at 168°C–185°C, and multi-level supply voltage supervision on VSUP, VREG, VDD, and VBATF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gate Drive Strength | 1.00A peak sourcing/sinking per channel - drives 350nC N-FETs at 20kHz PWM with full 100% duty cycle support |
| Supply Voltage Range | 4.5V–28V functional range - compatible with 12V and 24V automotive battery systems including load dump transients up to 45V |
| Current Sense Amplifier | Programmable gain (8x–48x), ±7.6mV input offset, <1µs settling - enables accurate torque control and phase current reconstruction |
| Diagnostic Interface | Bidirectional ICOM PWM (fast: 85–115kHz, slow: 10.6–14.4kHz) - conveys fault type via duty cycle encoding without requiring additional MCU pins |
| Sleep Current | <30µA at VDD = low - meets automotive standby power requirements for always-on motor subsystems |
| Package | 32-pin QFN-EP, 5×5mm, wettable flanks - supports automated optical inspection (AOI) and improves solder joint reliability in automotive environments |
| Qualification | AEC-Q100 Grade 0 (−40°C to +125°C ambient) - validated for under-hood automotive applications including engine cooling and HVAC |
Pinout & Package
MLX83203KLW-DDA-000-SP uses a 32-pin QFN-EP (5×5 mm, 0.5 mm pitch) with exposed thermal pad and wettable flanks for enhanced thermal performance and solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP (Pin 25) | Main power supply input | Accepts 4.5V–28V battery input; powers internal logic, charge pump, and 12V regulator |
| VDD (Pin 31) | Digital/analog supply | 3.3V or 5V supply for IOs, current sense amplifier, and EEPROM; includes under-voltage detection |
| GATET1–GATET3 (Pins 10,13,16) | High-side gate driver outputs | Drive external N-FET gates via bootstrap capacitors; support 100% PWM using trickle charge pump |
| GATEB1–GATEB3 (Pins 22,20,21) | Low-side gate driver outputs | Directly drive low-side N-FET gates; 1.00A peak current ensures fast switching of high-capacitance FETs |
| FETT1–FETT3 (Pins 29,28,30) | High-side PWM inputs | Active-high logic inputs accepting MCU PWM signals; include internal pull-down resistors (90–410 kΩ) |
| FETB1–FETB3 (Pins 4,5,6) | Low-side PWM inputs | Active-low logic inputs; Pin 4 doubles as MISO in SPI mode with configurable RDS(on) |
| ICOM (Pin 7) | Bidirectional diagnostics interface | Single-wire PWM communication for fault reporting; supports both fast and slow diagnostic modes |
| ISENSE (Pin 3) | Current sense amplifier output | Analog output referenced to VREF; full-scale range spans GND to VDD − 20mV for ADC interfacing |
| CP1–CP3 (Pins 11,14,17) | Bootstrap capacitor connections | Connect external capacitors to sustain high-side gate voltage during 100% duty cycle operation |
| PHASE1–PHASE3 (Pins 12,9,15) | Motor phase connections | Interface directly to motor windings; support VDS monitoring for FET health diagnostics |
Key Features
| Feature | Design Value |
|---|---|
| Configurable EEPROM | Stores driver settings (dead time, VDS threshold, blanking time) and diagnostic configurations - eliminates need for external configuration components or firmware updates per variant |
| Dual Charge Pump Modes | Mode 0 enables low-voltage operation (down to 4.5V); Mode 1 adds reverse-polarity N-FET protection by regulating VBOOST–VSUP to 5–13V - prevents shoot-through during battery reversal |
| Integrated Current Sense Amplifier | 8x–48x programmable gain, ±7.6mV offset, <1µs settling - enables high-fidelity phase current sampling for field-oriented control (FOC) without external op-amps |
| Comprehensive FET Monitoring | Per-FET VDS and VGS monitoring with programmable thresholds (0.40–2.30V VDS, 36–70% VREG VGS) and blanking times (0.6–8.5 µs) - detects open-load, short-circuit, and gate drive faults |
| Robust Diagnostics Architecture | Multi-level supply supervision (VSUP, VREG, VDD, VBATF), over-temperature warning (168–185°C), and fault-encoded ICOM PWM - reduces MCU software overhead and improves system safety integrity |
Applications
| Engine Cooling Fan | HVAC Blower |
|---|---|
Use Scenario: Variable-speed radiator fan controlled by engine ECU to optimize thermal management under dynamic load conditions. IC Role / Device Role / Timing Role: Pre-driver translating MCU PWM commands into high-current gate signals for three-phase inverter driving 200W–500W brushless fan motor. Use Value: Enables precise speed regulation and soft-start via programmable dead time and current sensing, reducing acoustic noise and mechanical stress during transient operation. | Use Scenario: Cabin air blower in automotive HVAC system requiring quiet, efficient airflow control across wide temperature and voltage ranges. IC Role / Device Role / Timing Role: Gate driver managing six discrete N-FETs in 3-phase inverter topology; interfaces with HVAC controller via ICOM diagnostics for real-time fault reporting. Use Value: Integrated current sense amplifier and VDS monitoring allow closed-loop torque control and early detection of winding shorts or bearing failures, improving system reliability. |
| Water Pump | Fuel Pump |
Use Scenario: Electric coolant pump in 48V mild-hybrid or EV thermal management systems operating continuously at elevated ambient temperatures. IC Role / Device Role / Timing Role: High-reliability pre-driver supporting 125°C ambient operation with AEC-Q100 qualification; manages gate drive for high-efficiency SiC or GaN FETs. Use Value: Sleep current <30µA and robust over-temperature protection (168–185°C) ensure fail-safe shutdown and extended service life in sealed, high-heat environments. | Use Scenario: In-tank fuel delivery pump requiring continuous operation with high immunity to voltage transients and reverse battery connection. IC Role / Device Role / Timing Role: Pre-driver with reverse-polarity N-FET protection mode (CP Mode 1) and 45V absolute max rating on VSUP/VBATF pins. Use Value: Dual charge pump configuration prevents latch-up during battery jump-start or accidental reverse connection, eliminating need for external protection diodes or TVS arrays. |
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-SP | 0.33A gate drive strength vs. 1.00A; identical pinout, package, and feature set | Targeted at mid-power applications (e.g., small HVAC blowers, auxiliary pumps) where lower FET gate charge reduces thermal demand | Select when driving FETs with ≤120nC total gate charge and thermal budget limits require reduced driver dissipation |
| DRV8305PAPR | 5V-compatible, 1.5A gate drive, integrated buck converter; no EEPROM or VDS monitoring; 32-pin HTSSOP package | Lacks programmable diagnostics and FET health monitoring; requires external current sense resistor and separate MCU ADC | Choose for cost-sensitive industrial BLDC systems where diagnostics are handled externally and higher gate current is needed without EEPROM customization |
Compared with MLX83202KLW-DDA-000-SP, the MLX83203KLW-DDA-000-SP provides triple the gate drive current for high-Ciss FETs, while DRV8305PAPR offers higher peak drive but sacrifices integrated diagnostics, EEPROM configurability, and automotive-grade monitoring features essential for functional safety compliance.
Availability
MLX83203KLW-DDA-000-SP is available at Aetrix Electronics and suitable for automotive engine cooling fans, HVAC blowers, and electric water pumps requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for MLX83203KLW-DDA-000-SP 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 expertise in magnetic sensing, thermal management, and motor control solutions.
The MLX83203KLW-DDA-000-SP belongs to Melexis' automotive BLDC pre-driver product line, engineered specifically for high-reliability, high-efficiency 12V/24V motor control in demanding under-hood and cabin environments.
FAQ
What is the maximum PWM frequency supported by the MLX83203KLW-DDA-000-SP?
The MLX83203KLW-DDA-000-SP supports PWM frequencies up to 100 kHz, with guaranteed operation at 20 kHz for full gate drive capability and current sensing accuracy. Its fast propagation delay (<120 ns) and matched timing (<±20 ns) across channels ensure clean commutation in high-speed BLDC applications. The MLX83203KLW-DDA-000-SP maintains stable gate drive and diagnostic reporting even at maximum frequency due to optimized internal logic and charge pump response.
Does the MLX83203KLW-DDA-000-SP support reverse battery protection?
Yes, the MLX83203KLW-DDA-000-SP supports reverse polarity protection for external N-FETs via its configurable charge pump Mode 1, which regulates VBOOST–VSUP to 5–13 V. This prevents unintended turn-on of high-side FETs during battery reversal. The device also withstands −0.3 V on VSUP and VBATF pins per absolute maximum ratings, and includes VBATF monitoring for system-level reverse connection detection. MLX83203KLW-DDA-000-SP does not require external protection diodes when used in this mode.
How is current sensing implemented in the MLX83203KLW-DDA-000-SP?
The MLX83203KLW-DDA-000-SP integrates a dedicated current sense amplifier with differential inputs (IBP/IBM), programmable gain (8x–48x), ±7.6 mV input offset, and <1 µs settling time. It outputs a rail-to-rail analog signal (ISENSE) referenced to VREF, compatible with standard MCU ADCs. Gain and blanking time are configured via EEPROM, enabling calibration for shunt resistor value and layout parasitics. This eliminates external amplifiers and improves phase current measurement fidelity for torque control in the MLX83203KLW-DDA-000-SP.
Can the MLX83203KLW-DDA-000-SP operate from a 5V supply only?
No - the MLX83203KLW-DDA-000-SP requires two supplies: VSUP (4.5V–28V) for gate drivers, charge pump, and regulator, and VDD (3.0V–5.5V) for digital logic and current sense amplifier. A standalone 5V supply cannot power VSUP; it must be derived from the vehicle battery or DC-DC converter. However, VDD may be supplied from a local 3.3V or 5V rail. The MLX83203KLW-DDA-000-SP's dual-supply architecture isolates sensitive analog functions from noisy motor power domains.
What diagnostic information does the ICOM pin provide on the MLX83203KLW-DDA-000-SP?
The ICOM pin on the MLX83203KLW-DDA-000-SP delivers fault status via PWM-encoded duty cycle: fast mode (85–115 kHz) indicates active faults (e.g., over-temperature, VDS overvoltage), while slow mode (10.6–14.4 kHz) reports warnings (e.g., supply UV/OV, VGS undervoltage). Each fault type maps to a unique duty cycle range, allowing single-wire decoding without protocol overhead. The MLX83203KLW-DDA-000-SP supports both modes simultaneously and retains fault memory until cleared by MCU command.
MLX83203KLW-DDA-000-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tube
- 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-SP FAQ
1.How can I place an order for MLX83203KLW-DDA-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX83203KLW-DDA-000-SP 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-SP reliable?
The price and inventory of MLX83203KLW-DDA-000-SP 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-SP is usually 5 days.
3.What payment methods are accepted for MLX83203KLW-DDA-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX83203KLW-DDA-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX83203KLW-DDA-000-SP?
MLX83203KLW-DDA-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX83203KLW-DDA-000-SP 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-SP?
For technical support, including MLX83203KLW-DDA-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX83203KLW-DDA-000-SP requirements.
6.How does Aetrix verify that MLX83203KLW-DDA-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX83203KLW-DDA-000-SP 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-SP meets industry standards.
7.What is the process for return or replacement of MLX83203KLW-DDA-000-SP?
All MLX83203KLW-DDA-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX83203KLW-DDA-000-SP, 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-SP part is unused and in its original packaging.
Return procedure for MLX83203KLW-DDA-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MLX83203KLW-DDA-000-SP 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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 …
