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Infineon Technologies CHL8515CRT
- Part No.:
- CHL8515CRT
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
CHL8515CRT.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,962
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Product details
Overview
CHL8515CRT from Infineon Technologies is a dual-channel high- and low-side N-channel MOSFET driver for synchronous buck converters, supporting 4.0–13.2V HVCC/LVCC drive voltage, 2A/4A low-side sink/source, 2A/2A high-side sink/source, <10ns propagation delay, and integrated bootstrap diode. It enables phase-by-phase thermal protection (61°C–150°C) and supports IR's Active Tri-Level (ATL) PWM in server memory VRMs.
For engineers reviewing the CHL8515CRT datasheet, CHL8515CRT pinout, CHL8515CRT application, or CHL8515CRT equivalent, key selection criteria include gate drive strength at 5V operation, adaptive non-overlap timing, thermal flag programmability, and compatibility with digital PWM controllers in multiphase DDR memory regulator designs.
Technical Context
The CHL8515CRT implements adaptive non-overlap control to prevent shoot-through during high-frequency switching up to >1 MHz, with propagation delays and transition times under 10 ns across its full 4.0–13.2 V drive range. Its variable gate drive architecture maintains consistent 2A/4A low-side and 2A/2A high-side output current regardless of supply voltage.
It accepts IR's patented Active Tri-Level (ATL) PWM input to optimize individual phase turn-off timing during load transients, and features an externally resistor-programmable thermal warning flag (OT#) tied to system enable in multiphase configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| HVCC/LVCC Range | 4.0 V to 13.2 V - Enables optimal efficiency tuning per rail in multi-rail VRMs |
| Low-Side Drive | 2 A source / 4 A sink - Sufficient to drive 3 nF gate capacitance in <10 ns at 5–12 V |
| High-Side Drive | 2 A source / 2 A sink - Matches fast turn-on/turn-off requirements for high-side N-MOSFETs |
| Propagation Delay | <10 ns - Ensures tight timing alignment in >1 MHz multiphase buck topologies |
| Thermal Flag Range | 61 °C to 150 °C - Programmable via external resistor for phase-specific thermal warning |
| Switching Frequency | 200 kHz to >1 MHz - Supports high-density, low-inductance VRM layouts for server DDR memory |
| Package | 10-pin DFN (3 mm × 3 mm, 0.5 mm pitch) - Thermally enhanced for high-power density applications |
Pinout & Package
CHL8515CRT uses a thermally enhanced 10-pin DFN package (3 mm × 3 mm, 0.5 mm pitch), RoHS-compliant and lead-free, with exposed thermal pad for PCB-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | LVCC power supply | Logic-level supply input (4.0–13.2 V); powers internal logic and low-side driver |
| HVCC | High-side driver supply | Independent high-voltage rail (4.0–13.2 V); powers high-side driver and bootstrap circuit |
| IN | PWM input | Accepts ATL PWM signal; controls both high- and low-side outputs with internal level shifting |
| HO | High-side gate output | Drives gate of external high-side N-MOSFET; integrates bootstrap diode |
| LO | Low-side gate output | Drives gate of external low-side N-MOSFET; 4 A sink capability minimizes dead-time loss |
| OT# | Thermal warning flag output | Open-drain output asserting thermal alert; resistor-programmable trip point (61–150 °C) |
| EN | Enable input | Active-high logic input enabling/disabling both drivers; used for system-level sequencing |
| GND | Power ground | Common return for HVCC, LVCC, and driver outputs; connected to thermal pad |
| BOOT | Bootstrap capacitor node | Connects external bootstrap capacitor; internal diode eliminates need for external diode |
| NC | No connect | Internally unused pin; must be left floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Separate HVCC and LVCC supplies | Enables independent optimization of high-side gate drive voltage and logic supply, improving overall VRM efficiency |
| Integrated bootstrap diode | Reduces BOM count by eliminating external diode; improves reliability and layout compactness |
| Adaptive non-overlap control | Prevents shoot-through under varying load and temperature conditions without fixed dead-time programming |
| Phase-by-phase thermal flag (OT#) | Allows per-phase thermal monitoring and coordinated shutdown in multiphase systems using single resistor setting |
| ATL PWM compatibility | Supports IR's Active Tri-Level signaling to minimize phase turn-off delay during transient events |
Applications
| Server DDR Memory VRM | Multi-Phase CPU Voltage Regulator |
|---|---|
Use Scenario: High-current, low-voltage regulation for DDR4/DDR5 memory modules in rack-mounted servers. IC Role / Device Role / Timing Role: Dual-channel gate driver controlling parallel high-side/low-side N-MOSFETs per phase in 4–8 phase buck topology. Use Value: Enables >1 MHz switching with <10 ns timing precision, reducing output inductor size and improving transient response to memory burst loads. | Use Scenario: Compact, high-efficiency VRM for enterprise-grade Xeon or EPYC processors requiring dynamic phase shedding. IC Role / Device Role / Timing Role: Phase-specific gate driver synchronized to digital PWM controller with ATL input for optimized turn-off timing. Use Value: Maintains 2A/4A drive strength at 5V LVCC, allowing use of +5VSB rail in S3 sleep state without performance penalty. |
| Graphics Card VR Solution | S3 Sleep-State Optimized VRM |
Use Scenario: High-density GPU voltage regulation with strict thermal and space constraints on PCIe add-in cards. IC Role / Device Role / Timing Role: High-frequency gate driver operating >500 kHz with integrated bootstrap diode and thermal flag for per-phase overtemperature detection. Use Value: Reduces component count and PCB area while delivering 3 nF gate drive in <10 ns, critical for fast GPU load-step response. | Use Scenario: Low-quiescent-power VRM maintaining standby regulation during S3 suspend-to-RAM mode. IC Role / Device Role / Timing Role: Gate driver powered from +5VSB rail with separate LVCC/HVCC inputs, enabling full functionality at 5V without efficiency loss. Use Value: Eliminates need for auxiliary 12V rail in sleep mode, lowering system idle power and simplifying power architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel high-/low-side MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR3595MTRPBF | Single-chip digital PWM controller + gate driver; no separate HVCC/LVCC; fixed 5V logic supply | Integrated control loop eliminates need for external PWM IC but reduces flexibility in multi-controller architectures | Choose when system-level integration outweighs need for discrete driver configurability |
| LM5113SD/NOPB | 100 V high-side rating; 4 A/4 A drive; no integrated bootstrap diode; requires external diode and higher minimum VDD (6 V) | Designed for wide-input industrial DC/DC; lacks ATL PWM support and programmable thermal flag | Choose for high-input-voltage (>12 V) or ruggedized industrial environments where thermal flag is not required |
Compared with IR3595MTRPBF and LM5113SD/NOPB, CHL8515CRT uniquely balances discrete driver flexibility, 5V-compatible operation, phase-specific thermal management, and ATL PWM responsiveness-making it purpose-built for high-efficiency, digitally controlled server memory VRMs.
Availability
CHL8515CRT is available at Aetrix Electronics and suitable for server DDR memory VRMs, multi-phase CPU voltage regulators, and graphics card power delivery systems requiring stable component supply and long-term lifecycle support.
Supply support for CHL8515CRT 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 leader specializing in power management, automotive, and industrial control ICs, with deep expertise in high-efficiency power conversion solutions.
The CHL8515CRT belongs to Infineon's high-frequency MOSFET driver product line, engineered specifically for digitally controlled, multiphase synchronous buck converters in advanced computing infrastructure.
FAQ
What is the function of the OT# pin on CHL8515CRT?
The OT# pin is an open-drain thermal warning flag output that asserts low when the die temperature exceeds a resistor-programmable threshold (61°C to 150°C). In multiphase systems, multiple OT# pins can be wired together to trigger a global thermal shutdown via the EN pin, enabling coordinated phase-by-phase thermal protection without external logic.
Does CHL8515CRT require an external bootstrap diode?
No. CHL8515CRT integrates a bootstrap diode between the HVCC and BOOT pins, eliminating the need for an external diode. This reduces component count, improves reliability, and simplifies PCB layout-particularly beneficial in dense VRM designs where board space is constrained and thermal performance is critical.
Can CHL8515CRT operate with only a 5V supply?
Yes. CHL8515CRT supports 4.0–13.2 V on both HVCC and LVCC rails, and maintains full 2A/4A low-side and 2A/2A high-side drive strength even at 5V. This allows direct use of +5VSB in S3 sleep mode, enabling efficient low-power standby regulation without auxiliary voltage rails.
How does CHL8515CRT implement non-overlap protection?
CHL8515CRT uses adaptive non-overlap control-internally generated dead time that dynamically adjusts based on propagation delay variation across temperature and supply voltage. Unlike fixed dead-time drivers, this prevents shoot-through under all operating conditions while minimizing unnecessary delay that would degrade efficiency.
CHL8515CRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 10-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 ~ 5.5V
- Logic Voltage - VIL, VIH:
- 0.8V, 1V
- Current - Peak Output (Source, Sink):
- 2A, 2A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 35 V
- Rise / Fall Time (Typ):
- 10ns, 8ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
CHL8515CRT FAQ
1.How can I place an order for CHL8515CRT through Aetrix?
Please submit a Request for Quotation (RFQ) for CHL8515CRT 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 CHL8515CRT reliable?
The price and inventory of CHL8515CRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CHL8515CRT is usually 5 days.
3.What payment methods are accepted for CHL8515CRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CHL8515CRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CHL8515CRT?
CHL8515CRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CHL8515CRT 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 CHL8515CRT?
For technical support, including CHL8515CRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CHL8515CRT requirements.
6.How does Aetrix verify that CHL8515CRT is sourced from the original manufacturer or authorized distributors?
All CHL8515CRT 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 CHL8515CRT meets industry standards.
7.What is the process for return or replacement of CHL8515CRT?
All CHL8515CRT units undergo pre-shipment inspection (PSI). If there is an issue with CHL8515CRT, 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 CHL8515CRT part is unused and in its original packaging.
Return procedure for CHL8515CRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CHL8515CRT Tags
-
ZXGD3009E6TA
Diodes Incorporated
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1EDN7512BXTSA1
Infineon Technologies
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UCC27517DBVR
Texas Instruments
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MCP1416T-E/OT
Microchip Technology
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MCP1402T-E/OT
Microchip Technology
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MCP1415T-E/OT
Microchip Technology
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MCP1401T-E/OT
Microchip Technology
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IX4428NTR
Littelfuse Inc.
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IRS2005STRPBF
Infineon Technologies
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IRS2008STRPBF
Infineon Technologies
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IX4310TTR
Littelfuse Inc.
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2EDN7524RXTMA1
Infineon Technologies
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