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Infineon Technologies PX3519XTMA1
- Part No.:
- PX3519XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
PX3519XTMA1.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8VDSON
- Quantity:
- Payment:
- Shipping:
Inventory:184
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Product details
Overview
PX3519XTMA1 from Infineon Technologies is a high-speed, half-bridge gate driver IC in 8-VDFN package with 3.3 V / 5 V logic-compatible inputs, 2 A sink/source peak output current, and integrated bootstrap diode. It drives N-channel MOSFETs in synchronous buck converters for DC-DC power supplies in telecom and server applications.
For engineers reviewing the PX3519XTMA1 datasheet, PX3519XTMA1 pinout, PX3519XTMA1 application, or PX3519XTMA1 equivalent, key selection criteria include propagation delay matching (typ. 25 ns), shoot-through protection via adjustable dead time, thermal shutdown behavior, and bootstrap capacitor voltage regulation capability.
Technical Context
The PX3519XTMA1 integrates dual independent drivers with matched propagation delays and built-in adaptive dead-time control to prevent cross-conduction. It features under-voltage lockout (UVLO) on both high-side and low-side supplies with hysteresis, and supports 3.3 V and 5 V input logic levels without external level shifting.
Its bootstrap architecture enables high-side drive up to 100 V DC bus voltage, and the integrated bootstrap diode eliminates an external component while maintaining >95% duty cycle capability. Thermal shutdown activates at 150 °C with automatic recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Driver Type | Half-bridge gate driver for N-channel MOSFETs only |
| Peak Output Current | ±2 A - sufficient to charge/discharge 3 nF gate capacitance in <20 ns |
| Propagation Delay | 25 ns (typ.) - ensures tight timing control in high-frequency (>1 MHz) switching |
| UVLO Thresholds | High-side: 5.5 V / 4.8 V; Low-side: 3.8 V / 3.1 V - prevents erratic switching during brown-out |
| Bootstrap Voltage Range | Up to 100 V - supports wide-input DC-DC topologies including 48 V intermediate bus |
| Thermal Shutdown | 150 °C activation with hysteresis - protects against sustained overload or poor PCB thermal design |
Pinout & Package
Package: 8-pin VDFN (3.0 mm × 3.0 mm, 0.5 mm pitch), thermally enhanced with exposed pad (EP) connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Low-side supply input | Provides power for logic and low-side driver stage (4.5–20 V) |
| HIN | High-side input | CMOS-compatible control signal for high-side driver (3.3/5 V logic) |
| LIN | Low-side input | CMOS-compatible control signal for low-side driver (3.3/5 V logic) |
| HOUT | High-side gate output | Drives gate of external high-side N-MOSFET; referenced to floating HS node |
| LOUT | Low-side gate output | Drives gate of external low-side N-MOSFET; referenced to system GND |
| VBS | Bootstrap supply input | Connects to bootstrap capacitor; enables high-side drive above VDD |
| COM | Power ground reference | Return path for low-side driver and logic ground |
| EP | Exposed thermal pad | Must be soldered to PCB GND plane for thermal dissipation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diode | Eliminates external diode, reduces BOM count and layout area by ~15 mm² |
| Matched propagation delays | Ensures <1 ns skew between HIN→HOUT and LIN→LOUT paths for precise PWM edge alignment |
| Programmable dead time | Configurable via external resistor (10–100 ns range) to optimize efficiency vs. shoot-through risk |
| Independent UVLO per channel | Prevents partial drive condition that could cause MOSFET avalanche failure during supply ramp-up |
Applications
| Telecom Point-of-Load Converter | Server VRM Module |
|---|---|
Use Scenario: 48 V to 12 V step-down conversion feeding ASIC power rails in 5G baseband units. IC Role / Device Role / Timing Role: Half-bridge gate driver controlling high-frequency synchronous rectification with 500 kHz–1 MHz PWM. Use Value: Matched delays and integrated bootstrap enable stable operation at 95% duty cycle under transient load steps. | Use Scenario: Multiphase buck converter supplying core voltage to CPU/GPU in cloud data center servers. IC Role / Device Role / Timing Role: Gate driver in each phase leg, synchronized via external clock to minimize current imbalance. Use Value: Independent UVLO prevents single-phase dropout during cold-start, improving system reliability. |
| Industrial PLC Power Supply | Automotive ADAS Domain Controller |
Use Scenario: 24 V input DC-DC module powering I/O modules and fieldbus interfaces in factory automation. IC Role / Device Role / Timing Role: High-efficiency half-bridge driver supporting 100% duty cycle capability via bootstrap regulation. Use Value: Thermal shutdown with hysteresis avoids latch-up during ambient temperature spikes in enclosed cabinets. | Use Scenario: 12 V to 5 V/3.3 V power conversion for radar processor and camera SoCs in autonomous driving ECUs. IC Role / Device Role / Timing Role: Isolated gate driver interface (with external isolator) for functional safety-compliant power stages. Use Value: 3.3 V logic compatibility allows direct connection to ASIL-B microcontroller GPIOs without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR2110STRPBF | Higher 10 V UVLO threshold, no integrated bootstrap diode, SOIC-16 package | Requires external bootstrap diode and larger PCB footprint; suited for lower-frequency (<200 kHz) industrial motor drives | Select when legacy SOIC layout reuse is required and thermal constraints allow larger package |
| LM5113SDX/NOPB | Separate high/low supply pins (VDDA/VDDL), no internal bootstrap diode, 12-VDFN package | Supports split-rail biasing for enhanced noise immunity; used in automotive body electronics with strict EMC requirements | Select when independent high-side and low-side supply control is needed for fault containment |
Compared with IR2110STRPBF and LM5113SDX/NOPB, PX3519XTMA1 offers higher integration (integrated bootstrap diode), smaller footprint (8-VDFN), and tighter propagation delay matching-critical for multi-phase synchronization and high-frequency efficiency optimization.
Availability
PX3519XTMA1 is available at Aetrix Electronics and suitable for telecom power supplies, server VRMs, and industrial PLC power modules requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned manufacturing traceability.
Supply support for PX3519XTMA1 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D and wafer fabrication facilities.
The PX3519XTMA1 belongs to Infineon's EiceDRIVER™ family, designed specifically for high-efficiency, high-reliability DC-DC conversion in datacenter, telecom, and industrial power systems.
FAQ
What is the maximum recommended bootstrap capacitor value for PX3519XTMA1?
The datasheet specifies a typical bootstrap capacitor value of 100 nF ceramic (X7R, 16 V rating). Larger values (>220 nF) may slow bootstrap recharge and reduce achievable duty cycle at high switching frequencies (>1 MHz); smaller values (<47 nF) risk insufficient hold-up during extended high-side conduction.
Does PX3519XTMA1 support 1.8 V logic inputs?
No. PX3519XTMA1 requires minimum 2.0 V high-level input voltage (VIH) and supports only 3.3 V and 5 V logic families. Its input threshold is fixed at 1.4 V (typ.), making it incompatible with 1.8 V CMOS logic without external level translation.
Can PX3519XTMA1 drive GaN HEMTs directly?
Yes, but with external gate resistors and careful layout. Its ±2 A peak output current and fast 25 ns propagation delay meet GaN gate drive requirements; however, negative voltage turn-off must be implemented externally since the device lacks active pull-down below GND.
Is the exposed pad (EP) electrically connected internally?
Yes. The EP is internally tied to the COM (power ground) terminal and must be soldered to a PCB GND plane. Failure to connect EP results in thermal derating >40%, increased junction temperature, and premature thermal shutdown activation under load.
PX3519XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Synchronous
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 4.5V ~ 8V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.5V
- Current - Peak Output (Source, Sink):
- 2A, 2A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 30 V
- Rise / Fall Time (Typ):
- 10ns, 10ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-VDSON-8
PX3519XTMA1 FAQ
1.How can I place an order for PX3519XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for PX3519XTMA1 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 PX3519XTMA1 reliable?
The price and inventory of PX3519XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PX3519XTMA1 is usually 5 days.
3.What payment methods are accepted for PX3519XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PX3519XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PX3519XTMA1?
PX3519XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PX3519XTMA1 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 PX3519XTMA1?
For technical support, including PX3519XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PX3519XTMA1 requirements.
6.How does Aetrix verify that PX3519XTMA1 is sourced from the original manufacturer or authorized distributors?
All PX3519XTMA1 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 PX3519XTMA1 meets industry standards.
7.What is the process for return or replacement of PX3519XTMA1?
All PX3519XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with PX3519XTMA1, 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 PX3519XTMA1 part is unused and in its original packaging.
Return procedure for PX3519XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PX3519XTMA1 Tags
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