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NXP Semiconductors MPC17531AEVEL
- Part No.:
- MPC17531AEVEL
- Manufacturer:
- NXP Semiconductors
- Category:
- Motor Drivers, Controllers
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MPC17531AEVEL.pdf
- Description:
- IC MTR DRV BIPLR 2.7-3.6V 20VMFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,610
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Product details
Overview
MPC17531AEVEL from NXP Semiconductors is a monolithic dual H-bridge motor driver IC designed for portable bipolar stepper and brushed DC motor control, featuring 700 mA continuous output current per channel, 1.2 Ω max RDS(on) at 25 °C, 3.0 V logic-compatible inputs, and independent PWM control up to 200 kHz - deployed in camera lens positioners and optical disk drive head actuators.
For engineers reviewing the MPC17531AEVEL datasheet, MPC17531AEVEL pinout, MPC17531AEVEL application, or MPC17531AEVEL equivalent, this page delivers verified electrical specs, functional pin roles, real-world use cases, and validated alternative options for motor driver selection in space-constrained, low-voltage embedded systems.
Technical Context
The MPC17531AEVEL integrates two independent H-bridge power stages with SMARTMOS technology, each supporting Forward, Reverse, Brake, and Tri-state modes via parallel logic inputs (IN1A/IN1B/IN2A/IN2B). It uses an internal triple charge pump (CRES output) to generate ~13 V gate drive from 3.0 V logic supply, enabling full enhancement of high-side MOSFETs across 2.0–8.6 V motor supply (VM).
It includes shoot-through current protection, undervoltage shutdown (VDD detection threshold 1.0–2.5 V), and power save mode drawing ≤2.0 μA. The device supports simultaneous dual-motor operation or single-bipolar-stepper control with independent PWM modulation on all four outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 0.7 A DC per channel - sufficient for driving small bipolar steppers or micro DC motors in portable optics. |
| RDS(on) | 0.8 Ω typ / 1.2 Ω max at 25 °C - minimizes conduction loss and thermal rise under load. |
| PWM Frequency | Up to 200 kHz - enables fine-grained speed/torque control and low-audio-noise motor operation. |
| Logic Supply | 2.7–3.6 V - compatible with 3.0 V microcontrollers without level-shifting circuitry. |
| Motor Supply Range | 2.0–8.6 V with internal charge pump - supports Li-ion, NiMH, and regulated 5 V rails. |
| Power Save Current | ≤2.0 μA - extends battery life during idle periods in handheld devices. |
| Undervoltage Threshold | 1.0–2.5 V on VDD - disables outputs before logic corruption occurs, preventing erratic motor behavior. |
Pinout & Package
Package: 20-pin VMFP (98ASA10616D), Pb-free, exposed pad optional. Pin pitch: 0.5 mm. Thermal resistance RθJA = 50 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Logic supply input | 3.0 V logic rail; powers internal logic and triggers undervoltage shutdown below 1.0 V. |
| IN1A/IN1B/IN2A/IN2B | H-bridge control inputs | Direct TTL/CMOS-compatible signals defining direction and state for each bridge (Forward/Reverse/Brake/Tri-state). |
| PSAVE | Power save enable | High-level active input forcing all outputs into high-impedance and disabling charge pump to reduce quiescent current to ≤2.0 μA. |
| OUT1A/OUT1B/OUT2A/OUT2B | H-bridge outputs | Four high-current terminals (700 mA each) connecting directly to motor windings; support bidirectional current flow. |
| VM1/VM2 | Motor power supply inputs | Must be tied together externally; supplies power to both bridges; accepts 2.0–8.6 V with internal charge pump enabled. |
| CRES | Charge pump output | ~13 V predriver supply generated internally; powers gate drivers to ensure full MOSFET enhancement. |
| C1H/C1L/C2H/C2L | Charge pump capacitor connections | External 0.1 μF ceramic capacitors required per pair to stabilize internal voltage doubling/tripling circuitry. |
| PGND1/PGND2/LGND | Ground terminals | Separate high-current (PGND) and low-current (LGND) grounds - must be joined at single point on PCB to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated triple charge pump | Generates ~13 V gate drive from 3.0 V VDD, eliminating need for external high-voltage supply in low-voltage systems. |
| Independent dual H-bridge control | Enables simultaneous operation of two DC motors or precise phase sequencing for one bipolar stepper without shared timing constraints. |
| Shoot-through protection | Hardware-level prevention of cross-conduction between high- and low-side MOSFETs, avoiding destructive short-circuit currents. |
| Tri-state and brake modes | Four defined operational states per bridge allow dynamic torque control, rapid deceleration, and safe coasting without mechanical braking. |
| Low-power sleep mode | Reduces total system current to ≤2.0 μA while preserving input state, critical for battery-powered optical positioning systems. |
Applications
| Camera Lens Positioning | Optical Disk Drive Actuator |
|---|---|
Use Scenario: Precise linear movement of autofocus lens elements using micro-stepping or analog current control. IC Role / Device Role / Timing Role: Dual H-bridge driver delivering bidirectional current to voice coil or stepper motor windings with sub-millisecond response. Use Value: Enables <10 μm positioning accuracy and silent operation via 200 kHz PWM, minimizing audible coil whine in consumer cameras. |
Use Scenario: Rapid radial movement of read/write head assembly across disk platter surface. IC Role / Device Role / Timing Role: High-speed H-bridge controller executing acceleration/deceleration profiles with controlled current slew rates. Use Value: Achieves <50 ms track-to-track seek time using 0.7 A peak current and 1.2 Ω RDS(on) to minimize thermal drift during burst operation. |
| Portable Medical Pump | Compact Robotic Joint |
Use Scenario: Controlled peristaltic or syringe-based fluid delivery in handheld diagnostic instruments. IC Role / Device Role / Timing Role: Brushed DC motor driver regulating flow rate via PWM-modulated torque, with fault-safe shutdown on undervoltage. Use Value: Ensures dose accuracy within ±2% over battery discharge cycle (2.0–4.2 V) using integrated VDD monitoring and tri-state fail-safe. |
Use Scenario: Low-inertia angular actuation in wearable exoskeleton joints or educational robotics kits. IC Role / Device Role / Timing Role: Bipolar stepper driver executing microstepped motion with independent phase control and dynamic current limiting. Use Value: Delivers 0.05° step resolution and stall detection via RDS(on)-based current sensing, reducing BOM cost vs. discrete driver solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6612FNG | Higher 1.2 A output current; 4.5–13.5 V VM range; no integrated charge pump - requires external 5 V gate drive or higher VM. | Better suited for 12 V industrial actuators; less optimal for 3.0 V logic-only systems due to lack of internal charge pump. | Select when motor supply ≥4.5 V and board space allows external gate drive components. |
| DRV8833 | Lower 1.5 A peak current; 2.7–10.8 V VM; built-in charge pump but only 1.5 Ω RDS(on); no PSAVE pin - standby current 100 μA vs. 2 μA. | Acceptable for low-duty-cycle toys or demonstrators; insufficient for sustained 0.7 A loads in medical or optical applications. | Choose only for cost-sensitive, non-critical applications where thermal margin and ultra-low sleep current are not required. |
Compared with TB6612FNG and DRV8833, the MPC17531AEVEL uniquely balances 3.0 V logic compatibility, ultra-low 2 μA power save current, and integrated charge pump - making it the only option among the three qualified for battery-powered optical positioning where voltage headroom and quiescent power are tightly constrained.
Availability
MPC17531AEVEL is available at Aetrix Electronics and suitable for camera autofocus modules, optical disk drive head positioners, portable medical pumps, and compact robotic joints requiring stable component supply across extended production lifecycles.
Supply support for MPC17531AEVEL 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
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with core expertise in mixed-signal integration and power-efficient analog/mixed-signal design.
The MPC17531AEVEL belongs to NXP's SMARTMOS motor driver family, engineered specifically for portable, battery-operated optical and precision motion systems demanding low-voltage logic compatibility, minimal quiescent power, and robust fault protection.
FAQ
What is the maximum continuous output current rating for the MPC17531AEVEL?
The MPC17531AEVEL is rated for 700 mA continuous output current per H-bridge channel at TA = 25 °C, with peak current capability of 1.4 A for 10 ms pulses. This rating assumes proper PCB thermal design including use of the exposed pad (if present) and adherence to the specified RθJA of 50 °C/W. Derating is required above 25 °C ambient per the thermal characteristics table in the official NXP datasheet for MPC17531AEVEL.
Does the MPC17531AEVEL require external charge pump capacitors?
Yes, the MPC17531AEVEL requires four external ceramic capacitors: two pairs (C1H/C1L and C2H/C2L) for its internal triple charge pump circuit. The recommended value is 0.1 μF per pair, placed as close as possible to the respective pins. These capacitors are mandatory for generating the ~13 V CRES voltage needed to fully enhance the high-side MOSFETs - omission results in incomplete turn-on and excessive RDS(on).
Can the MPC17531AEVEL drive a bipolar stepper motor?
Yes, the MPC17531AEVEL is explicitly designed to drive one bipolar stepper motor using its two independent H-bridges. Each bridge controls one motor phase (A and B), supporting full-step, half-step, and microstepping waveforms via coordinated IN1A/IN1B/IN2A/IN2B logic sequences. Its 0.7 A per-phase rating and 200 kHz PWM capability enable smooth, low-noise stepping in compact optical positioning systems.
What happens when the VDD supply drops below the undervoltage threshold on the MPC17531AEVEL?
When VDD falls below the programmable undervoltage detection threshold (1.0–2.5 V), the MPC17531AEVEL automatically forces all four H-bridge outputs (OUT1A/OUT1B/OUT2A/OUT2B) into high-impedance (tri-state) mode, halting motor operation safely. The internal charge pump and predriver circuits remain disabled until VDD recovers above the threshold, at which point normal operation resumes based on the current logic input states - preventing erratic motor behavior during brownout conditions.
Is the MPC17531AEVEL pin-compatible with other variants in the MPC17531A family?
No, the MPC17531AEVEL (20-pin VMFP) is not pin-compatible with the MPC17531ATEP (24-pin QFN) or MPC17531ATEJ (20-pin TSSOP with exposed pad). While functionally identical, the VMFP package has different pin numbering, layout, and thermal pad configuration. PCB redesign is required when substituting between these variants - refer to Figures 3 and packaging drawings in the NXP MPC17531AEVEL datasheet for exact mechanical and routing requirements.
MPC17531AEVEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- Parallel
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Battery Powered
- Current - Output:
- 700mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Voltage - Load:
- 2V ~ 8.6V
- Operating Temperature:
- -20°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-VMFP
MPC17531AEVEL FAQ
1.How can I place an order for MPC17531AEVEL through Aetrix?
Please submit a Request for Quotation (RFQ) for MPC17531AEVEL 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 MPC17531AEVEL reliable?
The price and inventory of MPC17531AEVEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPC17531AEVEL is usually 5 days.
3.What payment methods are accepted for MPC17531AEVEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPC17531AEVEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPC17531AEVEL?
MPC17531AEVEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPC17531AEVEL 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 MPC17531AEVEL?
For technical support, including MPC17531AEVEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPC17531AEVEL requirements.
6.How does Aetrix verify that MPC17531AEVEL is sourced from the original manufacturer or authorized distributors?
All MPC17531AEVEL 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 MPC17531AEVEL meets industry standards.
7.What is the process for return or replacement of MPC17531AEVEL?
All MPC17531AEVEL units undergo pre-shipment inspection (PSI). If there is an issue with MPC17531AEVEL, 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 MPC17531AEVEL part is unused and in its original packaging.
Return procedure for MPC17531AEVEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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