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NXP Semiconductors MPC17531ATEPR2
- Part No.:
- MPC17531ATEPR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Motor Drivers, Controllers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MPC17531ATEPR2.pdf
- Description:
- IC MTR DRV BIPOLR 2.7-3.6V 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,966
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Product details
Overview
MPC17531ATEPR2 from NXP Semiconductors is a monolithic dual H-bridge motor driver IC designed for portable electronics, supporting bipolar stepper and brushed DC motors. It delivers 700 mA continuous output per channel, operates from 2.0–8.6 V using an internal charge pump, features 1.2 Ω max RDS(on) at 25 °C, and supports independent PWM control up to 200 kHz - used in camera lens positioners and optical disk drive head actuators.
For engineers reviewing the MPC17531ATEPR2 datasheet, MPC17531ATEPR2 pinout, MPC17531ATEPR2 application, or MPC17531ATEPR2 equivalent, key selection criteria include dual-channel H-bridge topology, 3.0 V logic compatibility, shoot-through protection, undervoltage shutdown, and power-save mode with ≤2.0 μA quiescent current.
Technical Context
The MPC17531ATEPR2 integrates two independent SMARTMOS-based H-bridges with integrated predriver stages powered by a triple-charge-pump circuit (CRES output ≈ 3×VDD). Each bridge supports Forward, Reverse, Brake, and Tri-state modes via parallel logic inputs (IN1A/IN1B/IN2A/IN2B), with built-in shoot-through prevention and automatic undervoltage lockout below 1.0–2.5 V on VDD.
It uses external bucket capacitors (C1H/C1L, C2H/C2L) to generate gate drive voltage for high-side MOSFETs, enabling full enhancement even when VM (2.0–8.6 V) exceeds VDD (2.7–3.6 V). The PSAVE input forces all outputs into high-impedance while disabling charge pump and detection circuits to achieve ≤2.0 μA supply current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 700 mA DC per H-bridge channel - sufficient for micro-positioning of camera lens actuators and small disk drive voice coil motors. |
| RDS(on) | 0.8 Ω typ / 1.2 Ω max at 25 °C - minimizes conduction loss and thermal rise during continuous motor drive. |
| PWM Frequency Support | Up to 200 kHz - enables fine-grained speed/torque control and low-audible-noise operation in precision motion systems. |
| Logic Supply Range | 2.7–3.6 V - compatible with 3.0 V microcontrollers without level-shifting, reducing BOM count in battery-powered designs. |
| Charge Pump Voltage | CRES ≈ 12–13.5 V (no load) - ensures robust gate drive for high-side MOSFETs across full VM range (2.0–8.6 V). |
| Power Save Current | ≤2.0 μA - extends battery life in standby mode for portable imaging and storage devices. |
| Undervoltage Threshold | 1.0–2.5 V on VDD - triggers automatic tri-state shutdown before logic corruption occurs under brownout conditions. |
Pinout & Package
Package: 24-pin QFN (98ASA00474D), 4 × 4 × 0.85 mm, exposed thermal pad - optimized for compact portable PCB layouts with enhanced thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Logic Supply Input | 3.0 V MCU interface rail; powers internal logic and triggers undervoltage shutdown if <2.5 V. |
| IN1A/IN1B/IN2A/IN2B | Bridge Control Inputs | Direct TTL/CMOS-compatible logic signals defining Forward/Reverse/Brake/Tri-state for each H-bridge. |
| PSAVE | Power-Save Enable | Active-HIGH input forcing all four outputs into high-Z and disabling charge pump to reduce IQ to ≤2.0 μA. |
| OUT1A/OUT1B/OUT2A/OUT2B | H-Bridge Outputs | High-current terminals driving motor windings; support bidirectional current flow with <1.2 Ω total RDS(on). |
| VM1/VM2 | Motor Power Inputs | Must be tied together externally; supply 2.0–8.6 V to both bridges - no separate channel isolation. |
| CRES | Charge Pump Output | ~12–13.5 V predriver supply; must be decoupled to PGND with ≥0.01 μF capacitor for stable gate drive. |
| C1H/C1L/C2H/C2L | Charge Pump Capacitor Terminals | Connect external 0.1 μF ceramic buckets (C1H–C1L, C2H–C2L) to enable internal voltage doubling/tripling. |
| PGND1/PGND2/LGND | Ground Returns | Separate high-current (PGND) and low-current (LGND) grounds - critical for noise immunity and thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| SMARTMOS Process Integration | Monolithic integration of logic, charge pump, predrivers, and power MOSFETs eliminates discrete biasing and reduces layout complexity. |
| Independent Dual H-Bridge Control | Each bridge accepts separate INx logic pairs - enables simultaneous control of two DC motors or one bipolar stepper (2-phase). |
| Shoot-Through Protection | Hardware-level prevention of cross-conduction between high- and low-side MOSFETs - avoids destructive shoot-through current spikes. |
| Internal Triple Charge Pump | Generates ~13 V gate drive from 3.0 V VDD, enabling full enhancement of high-side MOSFETs even with VM = 8.6 V. |
| Tri-State Mode with Fast Recovery | Outputs enter high-Z within 10 ms of VDD drop below threshold; resume operation automatically when VDD recovers. |
Applications
| Camera Lens Positioning | Disk Drive Head Actuator |
|---|---|
|
Use Scenario: Precise linear actuation of autofocus or optical image stabilization (OIS) lens elements in smartphone and DSLR cameras. IC Role / Device Role / Timing Role: Dual H-bridge driver delivering bidirectional current to voice coil motor (VCM) coils with microsecond-level timing control. Use Value: Enables sub-micron positioning resolution and <200 kHz PWM responsiveness - critical for real-time OIS correction and fast AF settling. |
Use Scenario: Rapid, accurate radial positioning of read/write heads over spinning optical media (CD/DVD/Blu-ray drives). IC Role / Device Role / Timing Role: Bipolar stepper motor controller managing phase sequencing and current regulation for head carriage movement. Use Value: Low RDS(on) (1.2 Ω max) and integrated charge pump ensure consistent torque delivery across battery voltage decay (2.0–4.2 V). |
| Portable Medical Pump | Miniature Robotics Joint |
|
Use Scenario: Controlled fluid dosing in handheld insulin or infusion pumps using small brushed DC motors. IC Role / Device Role / Timing Role: Single-channel H-bridge driver with PWM speed control and brake functionality for reversible peristaltic pump actuation. Use Value: 700 mA output and ≤2.0 μA power-save current extend single-charge battery life while maintaining precise flow-rate accuracy. |
Use Scenario: Torque-controlled articulation of joints in palm-sized educational or inspection robots. IC Role / Device Role / Timing Role: Dual H-bridge enabling independent control of two DC gearmotors for differential drive or multi-axis coordination. Use Value: Independent PWM inputs (up to 200 kHz) allow synchronized velocity profiling and dynamic braking - essential for stable locomotion. |
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 rating; requires external 5 V logic supply; no integrated charge pump - needs external gate drive for high-side MOSFETs. | Better suited for higher-current 5 V systems (e.g., Arduino-based robotics); lacks 3.0 V logic compatibility and ultra-low-power save mode. | Select TB6612FNG only if >700 mA per channel is required and system VDD is fixed at 5 V with available board space for external components. |
| DRV8833 | Lower 1.5 A peak current; integrated charge pump; 2.7–10.8 V VM range; but only 1.0 A continuous and no PSAVE pin - quiescent current ~200 μA. | Acceptable for low-duty-cycle portable devices; lacks the MPC17531ATEPR2's ≤2.0 μA deep-sleep capability and tighter RDS(on) spec. | Choose DRV8833 when cost sensitivity outweighs battery-life requirements and design can tolerate higher standby current. |
Compared with TB6612FNG and DRV8833, the MPC17531ATEPR2 uniquely combines 3.0 V logic compatibility, ≤2.0 μA power-save current, and 1.2 Ω max RDS(on) in a 24-pin QFN - making it optimal for space-constrained, battery-critical portable imaging and storage applications.
Availability
MPC17531ATEPR2 is available at Aetrix Electronics and suitable for camera autofocus modules, optical disk drive actuators, portable medical pumps, and miniature robotic joints requiring stable component supply and long-term lifecycle support.
Supply support for MPC17531ATEPR2 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 consumer applications.
The MPC17531ATEPR2 belongs to NXP's SMARTMOS motor driver product line, engineered specifically for low-voltage, low-power portable motion control - emphasizing integration, efficiency, and battery longevity in space-constrained designs.
FAQ
What is the maximum continuous output current per channel for the MPC17531ATEPR2?
The MPC17531ATEPR2 delivers 700 mA continuous output current per H-bridge channel at 25 °C ambient, with peak capability up to 1.4 A for short durations (10 ms pulses at 200 ms intervals). This rating assumes proper PCB thermal design with the exposed pad soldered to a thermal plane. Exceeding 700 mA continuously risks thermal shutdown or accelerated degradation due to junction temperature rise beyond 150 °C.
Does the MPC17531ATEPR2 require external charge pump capacitors?
Yes, the MPC17531ATEPR2 requires four external ceramic capacitors: two 0.1 μF bucket capacitors (C1H–C1L and C2H–C2L) and one 0.01–1.0 μF decoupling capacitor on the CRES pin. These are mandatory for internal charge pump operation - omitting them prevents proper gate drive voltage generation and causes output failure or erratic behavior. The datasheet specifies 0.1 μF as typical value for C1/C2 pairs.
How does the PSAVE pin function on the MPC17531ATEPR2?
The PSAVE pin on the MPC17531ATEPR2 is an active-HIGH input that forces all four H-bridge outputs (OUT1A/OUT1B/OUT2A/OUT2B) into high-impedance state and disables the internal charge pump and undervoltage detection circuitry. When asserted, logic supply current drops to ≤2.0 μA - enabling ultra-low-power standby in battery-operated devices like digital cameras and portable medical equipment.
Can the MPC17531ATEPR2 drive a bipolar stepper motor?
Yes, the MPC17531ATEPR2 can drive a bipolar stepper motor by connecting one motor phase to OUT1A/OUT1B and the other to OUT2A/OUT2B. Its independent dual H-bridge architecture supports full-step, half-step, and microstepping when paired with an external controller generating appropriate INx logic sequences. The 700 mA per phase rating suits NEMA 8–11 size steppers commonly used in portable optics and instrumentation.
What is the operating voltage range for VM and VDD on the MPC17531ATEPR2?
The MPC17531ATEPR2 supports VM (motor supply) from 2.0 V to 8.6 V when using the internal charge pump, and up to 10 V if VCRES is supplied externally. VDD (logic supply) operates from 2.7 V to 3.6 V - strictly 3.0 V compatible. Operation outside these ranges risks malfunction or permanent damage; for example, VDD < 2.7 V may trigger undervoltage shutdown, while VM > 8.6 V without external CRES violates absolute maximum ratings.
MPC17531ATEPR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- 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:
- 24-QFN-EP (4x4)
MPC17531ATEPR2 FAQ
1.How can I place an order for MPC17531ATEPR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPC17531ATEPR2 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 MPC17531ATEPR2 reliable?
The price and inventory of MPC17531ATEPR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPC17531ATEPR2 is usually 5 days.
3.What payment methods are accepted for MPC17531ATEPR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPC17531ATEPR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPC17531ATEPR2?
MPC17531ATEPR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPC17531ATEPR2 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 MPC17531ATEPR2?
For technical support, including MPC17531ATEPR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPC17531ATEPR2 requirements.
6.How does Aetrix verify that MPC17531ATEPR2 is sourced from the original manufacturer or authorized distributors?
All MPC17531ATEPR2 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 MPC17531ATEPR2 meets industry standards.
7.What is the process for return or replacement of MPC17531ATEPR2?
All MPC17531ATEPR2 units undergo pre-shipment inspection (PSI). If there is an issue with MPC17531ATEPR2, 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 MPC17531ATEPR2 part is unused and in its original packaging.
Return procedure for MPC17531ATEPR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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