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Monolithic Power Systems Inc. MP6515GF-Z
- Part No.:
- MP6515GF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Motor Drivers, Controllers
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MP6515GF-Z.pdf
- Description:
- IC MTR DRV BIPLR 5.4-35V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:724
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Product details
Overview
MP6515GF-Z from Monolithic Power Systems is a 35V, 2.8A peak H-bridge motor driver with PHASE/ENABLE control logic, integrated N-channel MOSFETs (RDS(on) = 250 mΩ HS/LS), cycle-by-cycle current regulation, and fault reporting via open-drain nFAULT. It drives DC brush motors in industrial actuators requiring precise bidirectional control and thermal robustness up to +125°C junction temperature.
For engineers reviewing the MP6515GF-Z datasheet, MP6515GF-Z pinout, MP6515GF-Z application, or MP6515GF-Z equivalent, key selection considerations include its 5.4–35V input range, internal current sensing (no external shunt), 1.5V current trip threshold at VISEN, and TSSOP-16 EP package with exposed thermal pad for enhanced power dissipation.
Technical Context
The MP6515GF-Z implements constant off-time PWM current regulation using internal low-side current sensing - VISEN output scales linearly with load current (e.g., 1 V/A with 10 kΩ ISET resistor), triggering regulation when VISEN reaches 1.5 V. Fault detection is independent of this loop, with dedicated over-current (3.2–5 A), over-voltage (36–40 V), and thermal shutdown (165°C) circuits driving nFAULT.
Control logic uses four digital inputs (PHASE, ENBL, BRAKE, BMODE) to configure forward/reverse, brake (low/high-side), and sync fast-decay modes. nSLEEP disables all circuitry including charge pump, reducing quiescent current to 1 µA; wake-up latency is ~1 ms. The integrated charge pump (680 kHz) sustains gate drive for high-side N-MOSFETs across full VIN range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.4 V to 35 V - supports 12 V/24 V industrial rails without external regulators |
| Peak Output Current | 2.8 A - enables direct drive of medium-power DC motors (e.g., 24 V, 20 W) |
| RDS(on) (HS/LS) | 250 mΩ typ. at 25°C - limits conduction loss to ≤0.875 W per FET at 1.5 A continuous |
| Current Trip Threshold | 1.5 V at VISEN pin - sets precise, resistor-programmable current limit (e.g., 1.5 A with 10 kΩ ISET) |
| Fault Reporting | Open-drain nFAULT - asserts low on OCP/OVP/OTP; requires external pull-up for system-level fault signaling |
| Thermal Resistance θJA | 45 °C/W (TSSOP-EP) - enables 1.5 A continuous operation at +70°C ambient with 2-layer PCB |
| Logic Compatibility | 3.3 V / 5 V - accepts standard microcontroller GPIO without level shifting |
Pinout & Package
TSSOP-16 EP (5.0 mm × 6.4 mm) with exposed thermal pad (EP) requiring solder connection to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nFAULT | Fault indicator output | Open-drain signal pulled low during OCP/OVP/OTP; must be externally pulled up to host logic rail |
| BRAKE | Brake mode control | Active-high input enabling low-side or high-side short-circuit braking per BMODE state |
| PHASE | Motor direction control | Defines OUT1/OUT2 polarity when ENBL = high; internal pulldown ensures safe default state |
| nSLEEP | Low-power disable | Active-low input disabling charge pump, gate drivers, and logic; reduces IQ to 1 µA |
| ENBL | H-bridge enable | Active-high input enabling output stage; internal pulldown prevents unintended activation |
| ISET | Current limit programming | Connects to ground via resistor setting VISEN scaling (100 µA/A) and current trip point |
| VISEN | Analog current sense output | Voltage proportional to load current (e.g., 1 V/A); max 2 mA sink capability |
| BMODE | Brake mode select | Selects low-side (BMODE = 0) or high-side (BMODE = 1) brake configuration |
Key Features
| Feature | Design Value |
|---|---|
| Integrated N-channel H-bridge | Eliminates need for external high-side drivers or bootstrap components in 24 V systems |
| Internal current sensing | Removes requirement for precision shunt resistor and amplifier, reducing BOM count and layout area |
| Cycle-by-cycle current regulation | Provides stable torque control under varying load and supply conditions without external compensation |
| Comprehensive protection suite | Independent OCP, OVP (36–40 V), UVLO (5.3 V rising), and thermal shutdown (165°C) with automatic recovery |
| Thermally enhanced TSSOP-EP | 45 °C/W θJA enables higher continuous current vs. standard SOIC packages at same footprint |
Applications
| Industrial Actuators | Automated Valves |
|---|---|
Use Scenario: Linear motion control in pneumatic/hydraulic valve positioners requiring reversible 24 V DC motor drive. IC Role / Device Role / Timing Role: H-bridge driver executing bidirectional PWM-controlled motor commutation with real-time current feedback. Use Value: Internal current regulation maintains consistent actuator force across supply droop and temperature drift; nFAULT enables predictive maintenance alerts. |
Use Scenario: On/off and modulated flow control in HVAC damper actuators powered from 12–24 V DC rails. IC Role / Device Role / Timing Role: Motor interface translating MCU GPIO commands into forward/brake/reverse states with synchronized decay control. Use Value: PHASE/ENBL/BRAKE logic simplifies firmware implementation; thermal shutdown prevents coil burnout during stall conditions. |
| Medical Pumps | Robotic Joint Modules |
Use Scenario: Precision peristaltic or syringe pump mechanisms demanding low-noise, repeatable fluid displacement. IC Role / Device Role / Timing Role: Current-regulated H-bridge delivering calibrated torque to stepper or brushed DC motors with closed-loop verification via VISEN. Use Value: 1.5 V VISEN trip threshold enables accurate sub-ampere current limiting critical for dose accuracy; RoHS/lead-free compliance meets medical safety standards. |
Use Scenario: Compact joint actuation in collaborative robots where size, thermal margin, and fault resilience are critical. IC Role / Device Role / Timing Role: Motor driver managing dynamic load transients during acceleration/deceleration with instantaneous OCP response (<500 ns blanking). Use Value: TSSOP-EP package allows dense PCB integration; nFAULT integration with robot controller enables rapid fault isolation and safe stop execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6612FNG | Lower 13.5 V max VIN; 1.2 A continuous; no integrated charge pump - requires external bootstrap capacitor | Suitable for 5–12 V battery-powered devices only; lacks 24 V industrial compatibility | Choose for cost-sensitive, low-voltage portable designs where 2.8 A peak is unnecessary |
| VNH7040AS | Higher 41 V max VIN; 4.8 A peak; SPI-configurable diagnostics; larger HTSSOP20 package | Targets automotive-grade systems requiring ASIL-B support and advanced fault logging | Choose when ISO 16750-2 compliance, CAN-based diagnostics, or >3 A peak are required |
Compared with TB6612FNG and VNH7040AS, MP6515GF-Z delivers optimal balance of 24 V industrial compatibility, compact TSSOP-EP thermal performance, and analog current monitoring - making it ideal for space-constrained, thermally demanding non-automotive motion control.
Availability
MP6515GF-Z is available at Aetrix Electronics and suitable for industrial actuators, automated valves, medical pumps, and robotic joint modules requiring stable component supply across extended production lifecycles.
Supply support for MP6515GF-Z 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers in the US, China, and Taiwan.
The MP6515 belongs to MPS's motor driver product line, engineered specifically for industrial and medical motion control applications demanding wide input voltage range, integrated protection, and minimal external components.
FAQ
What is the maximum continuous output current for MP6515GF-Z at 70°C ambient?
The MP6515GF-Z supports ±1.5 A continuous output current under recommended operating conditions (TA = +70°C, 2-layer PCB). This is validated by thermal resistance (θJA = 45 °C/W) and derating curves in the datasheet - exceeding this requires enhanced copper pour or forced airflow.
Does MP6515GF-Z require an external current-sense resistor?
No. MP6515GF-Z uses internal low-side MOSFET current sensing and outputs a proportional voltage on VISEN. An external resistor on ISET sets the scaling factor (e.g., 10 kΩ yields 1 V/A), but no shunt resistor is needed for regulation or fault detection.
How does the nFAULT pin behave during current regulation versus over-current fault?
nFAULT remains high during normal cycle-by-cycle current regulation. It only pulls low during hard faults: over-current (after deglitch timeout), over-voltage (>36 V), or thermal shutdown (>165°C). This separation enables independent torque control and system-level safety monitoring.
Can MP6515GF-Z drive a bipolar stepper motor?
Yes - the MP6515GF-Z can drive one winding of a bipolar stepper motor using PHASE/ENBL control. For full 2-phase operation, two MP6515GF-Z units are required. Its 2.8 A peak rating supports NEMA 17–23 class steppers with appropriate current limiting.
What is the purpose of the CPA and CPB pins?
CPA and CPB form the flying capacitor node for the internal charge pump, which generates the gate-drive voltage for high-side N-MOSFETs. A 100 nF ceramic capacitor must be placed between CPA and CPB; failure to do so prevents high-side FET turn-on and causes output failure.
Is MP6515GF-Z compatible with 3.3 V microcontrollers?
Yes - all logic inputs (PHASE, ENBL, BRAKE, BMODE, nSLEEP) accept 3.3 V TTL levels: VIH ≥ 2.0 V and VIL ≤ 0.8 V are guaranteed. Input leakage is ±20 µA, allowing direct connection to most 3.3 V MCUs without buffering.
MP6515GF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver
- Output Configuration:
- Half Bridge
- Interface:
- Logic
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 2.8A
- Voltage - Supply:
- 5.4V ~ 35V
- Voltage - Load:
- 40V (Max)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP-EP
MP6515GF-Z FAQ
1.How can I place an order for MP6515GF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP6515GF-Z 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 MP6515GF-Z reliable?
The price and inventory of MP6515GF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP6515GF-Z is usually 5 days.
3.What payment methods are accepted for MP6515GF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6515GF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP6515GF-Z?
MP6515GF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP6515GF-Z 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 MP6515GF-Z?
For technical support, including MP6515GF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6515GF-Z requirements.
6.How does Aetrix verify that MP6515GF-Z is sourced from the original manufacturer or authorized distributors?
All MP6515GF-Z 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 MP6515GF-Z meets industry standards.
7.What is the process for return or replacement of MP6515GF-Z?
All MP6515GF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP6515GF-Z, 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 MP6515GF-Z part is unused and in its original packaging.
Return procedure for MP6515GF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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