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Renesas R2J20654NP#G3
- Part No.:
- R2J20654NP#G3
- Manufacturer:
- Renesas
- Category:
- Gate Drivers
- Package:
- -
- Datasheet:
-
R2J20654NP#G3.pdf
- Description:
- HALF BRIDGE BASED MOSFET DRIVER
- Quantity:
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Inventory:2,500
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Product details
Overview
R2J20654NP#G3 from Renesas Electronics is an integrated DrMOS power stage combining high-side and low-side MOSFETs with a matched gate driver in a single QFN40 package. It delivers up to 40 A average output current, supports >1 MHz switching, operates from 4.5–16 V input, and integrates zero-current detection for diode emulation-optimized for high-efficiency, high-density buck converters in desktop/server VRMs.
For engineers reviewing the R2J20654NP#G3 datasheet, R2J20654NP#G3 pinout, R2J20654NP#G3 application, or R2J20654NP#G3 equivalent, key selection considerations include thermal warning/shutdown thresholds (115°C/150°C), tri-state PWM input behavior (150 ns hold-off), bootstrapped high-side drive, and Intel 6×6 DrMOS compliance for CPU core power delivery.
Technical Context
The R2J20654NP#G3 implements a synchronous buck power stage with tightly coupled driver-MOSFET co-design: the internal driver precisely controls GH/GL timing to minimize shoot-through, incorporates overlap protection logic, and features a built-in bootstrap switch eliminating external Schottky diodes. Its UVLO (4.3 V turn-on / 3.8 V shutdown) and dual thermal sensing (THWN open-drain warning at 115°C, THDN latch-off at 150°C) enable robust system-level fault management.
It supports both continuous conduction mode (CCM) and diode emulation mode (DEM) via ZCD_EN# control, where DEM improves light-load efficiency by turning off the low-side MOSFET at inductor current zero-crossing. The PWM input accepts 3.3 V/5 V TTL logic with 1.4–2.0 V tri-state window and 150 ns detection delay, enabling compatibility with modern multi-phase controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Average Output Current | 40 A maximum - enables single-phase support for high-current CPU/GPU core rails |
| Input Voltage Range | 4.5 V to 16 V DC - compatible with standard 12 V input VRM architectures |
| Switching Frequency | Up to >1 MHz - supports high-frequency designs for reduced output filter size |
| Thermal Warning Threshold | 115°C ±15°C - provides early overtemperature alert without disabling operation |
| Thermal Shutdown Threshold | 150°C (latch-off) - protects device under sustained overload or cooling failure |
| PWM Input Logic | TTL-compatible with 3.3 V/5 V support and 150 ns tri-state detection - ensures interoperability with industry-standard controllers |
| Zero-Current Detection | Enabled via ZCD_EN# low signal - activates diode emulation mode to eliminate reverse inductor current and boost light-load efficiency |
Pinout & Package
Package: QFN40 (6 mm × 6 mm × 0.95 mm), lead-free/halogen-free, with three exposed thermal pads (VSWH, VIN, CGND) requiring PCB soldering for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ZCD_EN# (1) | Zero-current detection enable input | Active-low signal that triggers diode emulation mode; internally pulled up to VCIN via 160 kΩ resistor |
| VCIN (2) | Driver supply voltage input | +5 V logic supply with UVLO (4.3 V on / 3.8 V off); powers internal logic and level shifters |
| VDRV (3) | Gate drive supply voltage | +5 V dedicated supply for high- and low-side gate drivers; decoupling critical for stable switching |
| BOOT (4) | Bootstrap capacitor connection | Supplies floating voltage for high-side gate drive; internal boot switch eliminates external SBD |
| CGND (5, 37) | Control ground reference | Logic ground for VCIN/VDRV/PWM; must be externally connected to PGND for noise immunity |
| GH (6) | High-side gate drive output | Monitored high-side gate signal; connects to source of high-side MOSFET (VSWH node) |
| PWM (40) | PWM logic input | 3.3 V/5 V TTL input with hysteresis and 150 ns tri-state detection window |
| DISBL# (39) | Disable control input | Active-low shutdown; internally pulled low during thermal shutdown (THDN) to notify system controller |
| THWN (38) | Thermal warning output | Open-drain logic output asserted low when die temperature exceeds 115°C; requires external pull-up |
| GL (36) | Low-side gate drive output | Monitored low-side gate signal; connects to drain of low-side MOSFET (VSWH node) |
Key Features
| Feature | Design Value |
|---|---|
| Intel 6×6 DrMOS Compliance | Fully meets specification for multi-phase CPU VRMs including timing, footprint, and thermal interface requirements |
| Built-in Bootstrap Switch | Eliminates need for external Schottky diode in high-side gate drive path, reducing BOM count and layout complexity |
| Diode Emulation Mode (DEM) | Enables discontinuous conduction at light load via ZCD_EN#, improving efficiency by preventing reverse inductor current |
| Dual Thermal Protection | Separate thermal warning (115°C) and latch-off shutdown (150°C) with dedicated pins (THWN, DISBL#) for system-level monitoring |
| Tri-State PWM Input | Automatically disables both MOSFETs when PWM signal remains in 1.4–2.0 V hysteresis window for ≥150 ns - prevents undefined states during controller reset |
Applications
| Desktop CPU Core VRM | Server Memory Regulator |
|---|---|
Use Scenario: High-current, multi-phase buck converter supplying 1.0–1.3 V to modern x86 CPU cores with dynamic load steps exceeding 100 A/μs. IC Role / Device Role / Timing Role: Integrated DrMOS power stage delivering synchronized high-side/low-side switching with optimized dead-time control and fast transient response. Use Value: Enables compact, high-efficiency phase design with 40 A per phase capability and thermal warning signaling for predictive fan control. | Use Scenario: Point-of-load regulator for DDR4/DDR5 memory subsystems requiring tight voltage regulation (<±10 mV) and low-noise operation. IC Role / Device Role / Timing Role: Synchronous buck power stage providing low-VDS(on) switching and zero-current detection to maintain efficiency across wide load range (1–30 A). Use Value: Reduces light-load power loss via diode emulation mode while maintaining Intel 6×6 mechanical and thermal compatibility for server motherboard reuse. |
| GPU Core Power Delivery | AI Accelerator VRM |
Use Scenario: High-density, high-frequency VRM for discrete graphics processing units with peak currents >60 A per rail and strict thermal envelope constraints. IC Role / Device Role / Timing Role: Single-package DrMOS solution integrating driver and MOSFETs to minimize parasitic inductance and support >1 MHz switching for smaller magnetics. Use Value: Achieves lower power dissipation and improved thermal performance versus discrete MOSFET + driver solutions, validated for GPU reference designs. | Use Scenario: Multi-phase power delivery for AI inference/training accelerators requiring rapid load transient response and real-time thermal telemetry. IC Role / Device Role / Timing Role: DrMOS stage with THWN and DISBL# outputs feeding into system microcontroller for closed-loop thermal management and dynamic phase shedding. Use Value: Provides hardware-level thermal warning (115°C) and shutdown (150°C) signals enabling firmware-controlled derating before catastrophic failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DrMOS power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR35203MTRPBF | Same QFN40 package, 40 A rating, but uses external bootstrap diode; no integrated ZCD function | Lacks diode emulation mode - less efficient at light loads; requires additional BOM component | Select when legacy controller compatibility or cost sensitivity outweighs light-load efficiency needs |
| ISL99227BIRZ-T | 40 A rating, Intel 6×6 compliant, includes ZCD and thermal warning, but rated for 20 V max VIN vs. R2J20654NP#G3's 16 V max operating VIN | Higher VIN tolerance allows use in 19 V intermediate bus applications where R2J20654NP#G3 is limited to ≤16 V | Select when system input voltage exceeds 16 V or when ISL99227B's higher thermal shutdown threshold (155°C) is preferred |
Compared with IR35203MTRPBF and ISL99227BIRZ-T, the R2J20654NP#G3 uniquely combines integrated bootstrap switching, precise 115°C thermal warning, and tri-state PWM detection in a single QFN40 package-making it optimal for space-constrained, thermally managed desktop/server VRMs where BOM reduction and light-load efficiency are critical.
Availability
R2J20654NP#G3 is available at Aetrix Electronics and suitable for desktop CPU VRMs, server memory regulators, and GPU core power delivery requiring stable component supply, long-term lifecycle support, and traceable sourcing for high-volume production.
Supply support for R2J20654NP#G3 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
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power management, and SoC solutions for automotive, industrial, and datacenter applications.
The R2J20654NP#G3 belongs to Renesas' DrMOS product line, engineered specifically for high-efficiency, high-current CPU/GPU core voltage regulation in computing platforms compliant with Intel VRD specifications.
FAQ
What is the maximum recommended input voltage for the R2J20654NP#G3?
The R2J20654NP#G3 has a recommended operating input voltage range of 4.5 V to 16 V DC. Its absolute maximum VIN rating is 20 V, but sustained operation above 16 V violates the Recommended Operating Conditions and may compromise reliability or thermal performance. Designers should maintain VIN ≤16 V for full specification compliance and long-term stability in R2J20654NP#G3-based VRMs.
How does the R2J20654NP#G3 implement diode emulation mode?
The R2J20654NP#G3 implements diode emulation mode (DEM) via the ZCD_EN# pin: when this pin is driven low, the internal zero-current detector monitors inductor current and automatically turns off the low-side MOSFET at zero-crossing. This prevents reverse current flow and improves light-load efficiency. The R2J20654NP#G3's DEM is hardware-automated and requires no external control beyond asserting ZCD_EN#.
Does the R2J20654NP#G3 require an external bootstrap diode?
No, the R2J20654NP#G3 does not require an external bootstrap diode. It integrates a dedicated bootstrap switch between VDRV and BOOT pins, eliminating the need for an external Schottky diode in the high-side gate drive circuit. This reduces BOM count, simplifies layout, and improves reliability compared to discrete-driver solutions requiring external bootstrap components.
What is the function of the THWN pin on the R2J20654NP#G3?
The THWN pin on the R2J20654NP#G3 is an open-drain thermal warning output that asserts low when the internal driver IC junction temperature exceeds 115°C. It serves as an early overtemperature indicator-distinct from thermal shutdown-and requires an external pull-up resistor (e.g., 51 kΩ to 5 V) for proper logic-level signaling. THWN remains active during normal operation above threshold and does not disable the R2J20654NP#G3.
Can the R2J20654NP#G3 operate with both 3.3 V and 5 V PWM controllers?
Yes, the R2J20654NP#G3 PWM input is fully compatible with both 3.3 V and 5 V TTL-level controllers. Its input threshold is defined by hysteresis (2.6 V high, 0.8 V low), and it includes a 150 ns tri-state detection window for undefined logic states. This dual-voltage support allows seamless integration with modern digital PWM controllers used in Intel-compliant VRMs without level-shifting circuitry.
R2J20654NP#G3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- -
- Channel Type:
- -
- Number of Drivers:
- -
- Gate Type:
- -
- Voltage - Supply:
- -
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- -
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
R2J20654NP#G3 FAQ
1.How can I place an order for R2J20654NP#G3 through Aetrix?
Please submit a Request for Quotation (RFQ) for R2J20654NP#G3 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 R2J20654NP#G3 reliable?
The price and inventory of R2J20654NP#G3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R2J20654NP#G3 is usually 5 days.
3.What payment methods are accepted for R2J20654NP#G3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R2J20654NP#G3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R2J20654NP#G3?
R2J20654NP#G3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R2J20654NP#G3 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 R2J20654NP#G3?
For technical support, including R2J20654NP#G3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R2J20654NP#G3 requirements.
6.How does Aetrix verify that R2J20654NP#G3 is sourced from the original manufacturer or authorized distributors?
All R2J20654NP#G3 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 R2J20654NP#G3 meets industry standards.
7.What is the process for return or replacement of R2J20654NP#G3?
All R2J20654NP#G3 units undergo pre-shipment inspection (PSI). If there is an issue with R2J20654NP#G3, 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 R2J20654NP#G3 part is unused and in its original packaging.
Return procedure for R2J20654NP#G3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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