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Analog Devices Inc. LTC4441MPMSE#PBF
- Part No.:
- LTC4441MPMSE#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC4441MPMSE#PBF.pdf
- Description:
- IC GATE DRVR LOW-SIDE 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,676
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Product details
Overview
LTC4441MPMSE#PBF from Analog Devices (formerly Linear Technology) is a high-speed, 6A peak-output N-channel MOSFET gate driver in a thermally enhanced 10-lead MSOP package with exposed pad. It operates from 5V to 25V VIN, delivers 30ns propagation delay, features an adjustable 5V–8V gate drive voltage via internal linear regulator, and includes programmable leading-edge blanking for current-sense signal integrity in synchronous buck converters.
For engineers reviewing the LTC4441MPMSE#PBF datasheet, LTC4441MPMSE#PBF pinout, LTC4441MPMSE#PBF application, or LTC4441MPMSE#PBF equivalent, key selection criteria include its –55°C to 125°C extended temperature rating, 0.35Ω pull-down resistance, <12µA shutdown current, open-drain BLANK output, and compatibility with high-frequency switching controllers requiring robust gate drive and source-current sensing blanking.
Technical Context
The LTC4441MPMSE#PBF integrates a P-channel LDO regulator (DRVCC) programmable from 5V to 8V via FB pin feedback, enabling optimal biasing for logic-level or standard-threshold N-MOSFETs. Its input stage uses supply-independent CMOS/TTL thresholds (VIH = 2.4V, VIL = 1.4V) with 1V hysteresis to reject noise, and supports input voltages from –15V to +15V relative to ground.
Driver output employs an adaptive NPN/P-MOS pull-up and N-MOS pull-down stage with 5ns nonoverlapping control to minimize cross-conduction. Thermal shutdown activates at 150°C (20°C hysteresis), and undervoltage lockout disables output if DRVCC drops >20% below programmed value. The BLANK pin provides adjustable blanking time (200ns typical at RBLANK = 200kΩ) for external current-sense circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Supply Range | 5V to 25V - powers internal DRVCC regulator; supports wide-input industrial and automotive power supplies. |
| Peak Output Current | 6A - sufficient to rapidly charge/discharge high-QG MOSFETs (e.g., >70nC) at 300kHz+ switching frequencies. |
| Propagation Delay | 30ns (tPHL), 36ns (tPLH) - enables precise timing control in high-frequency synchronous rectifiers and DC/DC controllers. |
| DRVCC Regulator Range | 5V to 8V - set via external resistor divider on FB pin; allows matching of gate drive voltage to MOSFET threshold and RDS(ON) optimization. |
| Shutdown Current | <12µA - achieved by pulling EN/SHDN <0.45V; critical for low-power standby modes in battery-backed systems. |
| Operating Temp Range | –55°C to 125°C - fully tested and guaranteed; suitable for military, aerospace, and under-hood automotive applications. |
| Thermal Resistance θJA | 38°C/W - enabled by exposed-pad MSOP package; requires PCB soldering of Pin 11 (GND) for thermal performance. |
Pinout & Package
Package: 10-lead plastic MSOP (MSE) with exposed thermal pad (Pin 11 = GND). Requires soldering of exposed pad to PCB ground plane for thermal management and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power Ground Reference | Low-inductance return for DRVCC bypass capacitor and driver output stage; must be tied directly to SGND near IC and to MOSFET source. |
| BLANK (Pin 2) | Open-Drain Blanking Signal Output | Asserts blanking window on external current-sense path; pulled low when OUT transitions high, then goes high-Z after programmable delay. |
| RBLANK (Pin 3) | Blanking Time Adjustment Input | Resistor-to-SGND sets blanking duration (e.g., 200kΩ → ~200ns); floating disables blanking function. |
| SGND (Pin 4) | Signal Ground Reference | Return for FB, IN, EN/SHDN, and DRVCC regulator; separated from PGND but joined near IC to minimize noise coupling. |
| IN (Pin 5) | Noninverting Logic Input | TTL/CMOS-compatible input with –15V to +15V tolerance; drives internal driver directly without level-shifting. |
| EN/SHDN (Pin 6) | Enable/Shutdown Control | Three-state control: <0.45V = full shutdown (<12µA IQ), 0.45–1.21V = standby (DRVCC active, output forced low), >1.21V = normal operation. |
| FB (Pin 7) | DRVCC Regulator Feedback | Connects to center tap of R1/R2 divider (R1 = 330kΩ fixed) to program DRVCC output voltage between 5V and 8V. |
| VIN (Pin 8) | Main Supply Input | Input to internal LDO; bypassed to SGND with ≥1µF low-ESR capacitor; supports up to 28V absolute max. |
| DRVCC (Pin 9) | Regulated Gate Drive Supply | Output of internal LDO; powers driver core and logic; bypassed to PGND with ≥10µF X5R/X7R ceramic capacitor. |
| OUT (Pin 10) | High-Current Driver Output | Drives N-MOSFET gate; 6A peak sourcing/sinking capability; low 0.35Ω pull-down resistance ensures fast turn-off. |
| GND (Exposed Pad, Pin 11) | Thermal & Electrical Ground | Must be soldered to PCB ground plane; primary thermal path and reference for all internal grounds. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable Gate Drive Voltage | 5V–8V via FB pin feedback - enables optimization for RDS(ON) vs. switching loss trade-offs across diverse N-MOSFETs. |
| Programmable Leading-Edge Blanking | 200ns typical blanking time (RBLANK = 200kΩ) - suppresses current-sense ringing in high-dV/dt synchronous buck topologies. |
| Logic-Level Input with Wide Voltage Range | VIH = 2.4V / VIL = 1.4V, ±15V tolerant - eliminates need for external level shifters when interfacing with microcontrollers or PWM controllers. |
| Ultra-Low Shutdown Current | <12µA - reduces system standby power in always-on applications such as automotive infotainment or industrial PLCs. |
| Robust Thermal Protection | 150°C activation with 20°C hysteresis - prevents latch-up or permanent damage during overload or poor heatsinking conditions. |
| High-Speed Switching Performance | 30ns tPHL, 8ns tf - supports >1MHz switching frequencies while maintaining clean gate drive waveforms. |
Applications
| Industrial DC/DC Converters | Automotive Power Supplies |
|---|---|
Use Scenario: High-efficiency 48V-to-12V synchronous buck converter in factory automation PLCs. IC Role / Device Role / Timing Role: Gate driver for high-side N-MOSFET; provides precise 30ns-delayed, 6A peak drive synchronized to controller PWM. Use Value: Enables use of low-RDS(ON) MOSFETs with 5V–8V gate bias, reducing conduction losses by >15% versus fixed 5V drivers. |
Use Scenario: Under-hood 12V/24V step-down module powering ADAS camera ECU with strict thermal limits. IC Role / Device Role / Timing Role: High-reliability gate driver operating continuously at –40°C to 125°C ambient; manages blanking for accurate current limiting. Use Value: Guaranteed –55°C to 125°C operation and 38°C/W θJA ensure stable performance without derating in confined engine bay spaces. |
| Motor Drive Half-Bridges | Telecom Line Cards |
Use Scenario: 24V brushed DC motor control in robotic actuators with fast direction reversal. IC Role / Device Role / Timing Role: Low-side N-MOSFET driver with fast 8ns fall time and <12µA shutdown for energy-efficient idle mode. Use Value: 0.35Ω pull-down resistance ensures sub-100ns MOSFET turn-off, minimizing shoot-through risk during commutation. |
Use Scenario: Hot-swap power sequencing on 48V telecom line cards with fault-protected gate drive. IC Role / Device Role / Timing Role: Gate driver for N-MOSFET OR-ing FETs; uses EN/SHDN for controlled inrush current ramp and UVLO for brownout protection. Use Value: Integrated undervoltage lockout and overtemperature shutdown eliminate need for external monitoring circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel MOSFET gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5113SDX/NOPB | Higher 9A peak output, no integrated DRVCC regulator, SO-8 package only, no blanking function. | Requires external 5V/8V rail; better suited for high-current discrete gate drive where board space permits external regulation. | Select LM5113SDX/NOPB when peak current >6A is required and blanking is handled by controller; avoid if DRVCC regulation or blanking is needed. |
| UCC27531DR | 6A peak output, 5V–18V supply, no blanking, no adjustable DRVCC, 8-pin SOIC, –40°C to 140°C. | Lacks programmable gate voltage and blanking; simpler interface but less flexible for current-sense–dependent topologies. | Select UCC27531DR for cost-sensitive, high-volume applications where fixed 5V gate drive suffices and thermal range ≤140°C is acceptable. |
Compared with LM5113SDX/NOPB and UCC27531DR, the LTC4441MPMSE#PBF uniquely combines guaranteed –55°C operation, integrated adjustable DRVCC regulation, and programmable blanking-making it the only choice for ruggedized, high-fidelity current-mode synchronous buck designs requiring full feature integration in a single MSOP package.
Availability
LTC4441MPMSE#PBF is available at Aetrix Electronics and suitable for industrial DC/DC converters, automotive power modules, and motor control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC4441MPMSE#PBF 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
Analog Devices, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving precision instrumentation, industrial, automotive, and communications markets.
The LTC4441MPMSE#PBF belongs to Linear's high-speed gate driver product line, engineered specifically for demanding power conversion applications requiring precision timing, thermal resilience, and integrated current-sense blanking in compact packages.
FAQ
What is the maximum allowable VIN voltage for the LTC4441MPMSE#PBF?
The absolute maximum VIN rating for the LTC4441MPMSE#PBF is 28V. Operation above this voltage risks permanent damage. For reliable long-term use, the recommended operating range is 5V to 25V, aligning with the specifications for the internal DRVCC regulator and thermal performance envelope. Exceeding 25V may increase power dissipation and reduce junction temperature margin, especially at high ambient temperatures.
Does the LTC4441MPMSE#PBF support negative input voltages on the IN pin?
Yes, the LTC4441MPMSE#PBF supports input voltages from –15V to +15V on the IN pin relative to SGND. This negative tolerance enables direct interfacing with signals exhibiting ground bounce or ringing in high-dV/dt environments, eliminating the need for external clamping diodes or level shifters in noisy industrial or automotive applications.
How is the blanking time configured on the LTC4441MPMSE#PBF?
The blanking time on the LTC4441MPMSE#PBF is set by connecting a resistor (RBLANK) from Pin 3 (RBLANK) to SGND. A 200kΩ resistor yields ~200ns blanking time; lower values reduce the delay. The BLANK pin (Pin 2) is an open-drain output that asserts low during blanking and goes high-impedance afterward. This function is exclusive to the 10-lead LTC4441 variant and absent in the LTC4441-1 SO-8 version.
What is the purpose of the exposed pad (Pin 11) on the LTC4441MPMSE#PBF?
The exposed pad (Pin 11) on the LTC4441MPMSE#PBF serves as the primary thermal and electrical ground connection. It must be soldered to a PCB ground plane to achieve the specified θJA of 38°C/W. Failure to do so results in significantly higher thermal resistance, risking junction temperature exceedance and premature thermal shutdown during sustained 6A peak output operation.
Can the LTC4441MPMSE#PBF operate without the DRVCC regulator enabled?
Yes - the LTC4441MPMSE#PBF can operate with the internal DRVCC regulator disabled by connecting the FB pin directly to VIN and tying DRVCC to the same VIN rail. In this configuration, the driver is powered directly from VIN, bypassing the LDO. This is appropriate when VIN closely matches the required gate drive voltage (e.g., VIN = 5.5V for 5V gate drive), improving efficiency and eliminating regulator dropout concerns.
LTC4441MPMSE#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 5V ~ 25V
- Logic Voltage - VIL, VIH:
- 1.8V, 2V
- Current - Peak Output (Source, Sink):
- 6A, 6A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 13ns, 8ns
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP-EP
LTC4441MPMSE#PBF FAQ
1.How can I place an order for LTC4441MPMSE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4441MPMSE#PBF 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 LTC4441MPMSE#PBF reliable?
The price and inventory of LTC4441MPMSE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4441MPMSE#PBF is usually 5 days.
3.What payment methods are accepted for LTC4441MPMSE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4441MPMSE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4441MPMSE#PBF?
LTC4441MPMSE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4441MPMSE#PBF 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 LTC4441MPMSE#PBF?
For technical support, including LTC4441MPMSE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4441MPMSE#PBF requirements.
6.How does Aetrix verify that LTC4441MPMSE#PBF is sourced from the original manufacturer or authorized distributors?
All LTC4441MPMSE#PBF 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 LTC4441MPMSE#PBF meets industry standards.
7.What is the process for return or replacement of LTC4441MPMSE#PBF?
All LTC4441MPMSE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4441MPMSE#PBF, 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 LTC4441MPMSE#PBF part is unused and in its original packaging.
Return procedure for LTC4441MPMSE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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