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Renesas R2J20657CNP#G2
- Part No.:
- R2J20657CNP#G2
- Manufacturer:
- Renesas
- Category:
- Gate Drivers
- Package:
- -
- Datasheet:
-
R2J20657CNP#G2.pdf
- Description:
- HALF BRIDGE BASED MOSFET DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:42,500
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Product details
Overview
R2J20657CNP#G2 from Renesas Electronics is an integrated DrMOS power stage combining high-side and low-side MOS FETs with a matched gate driver in a single QFN40 package. It delivers up to 40 A average output current, supports >1 MHz switching, operates with VIN up to 20 V, and integrates thermal warning (THWN), bootstrap switch, and tri-state PWM input for zero-current detection - optimized for high-efficiency, low-voltage buck converters in desktop/server VRMs.
For engineers reviewing the R2J20657CNP#G2 datasheet, R2J20657CNP#G2 pinout, R2J20657CNP#G2 application, or R2J20657CNP#G2 equivalent, key selection criteria include its Intel 6×6 DrMOS compliance, 40 A continuous output capability, integrated 5 V regulator (Reg5V), thermal warning logic output, and support for mid-voltage PWM triggering of zero-current detection mode.
Technical Context
The R2J20657CNP#G2 implements a synchronous buck power stage with tightly coupled high-side and low-side MOS FETs and a dedicated driver IC on a single substrate, minimizing parasitic inductance for stable >1 MHz operation. Its internal UVLO (7.0–7.4 V hysteresis) and supervisor circuitry (3.8–4.3 V hysteresis) manage 5 V regulator activation and driver enablement independently of DISBL# control.
It features dual disable paths: DISBL# forces full shutdown (GL/GH = L), while LSDBL# selectively disables the low-side gate for discontinuous conduction mode. The THWN open-drain output asserts low at 150°C (±15°C hysteresis) without halting operation, and the built-in bootstrap switch eliminates external Schottky diodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Average Output Current | 40 A maximum - enables single-phase CPU core VRMs handling high transient loads in servers/desktops |
| Input Voltage Range (VIN) | 4.5–16 V DC - compatible with standard 12 V input rail and supports wide-range VRM designs |
| Switching Frequency Support | Up to 1 MHz+ - allows compact magnetics and high-density board layouts |
| Thermal Warning Threshold | 150°C ±15°C - provides early overtemperature indication before thermal shutdown |
| Reg5V Output | 4.95–5.45 V @ 0–10 mA - powers external logic and supplies internal circuitry with <±10 mV line/load regulation |
| PWM Input Logic | TTL-compatible (VH-PWM ≥ 4.1 V, VL-PWM ≤ 0.8 V) with tri-state detection (1.4–3.3 V) for ZCD mode entry |
| Package | QFN40 (6 mm × 6 mm × 0.95 mm) - surface-mount, thermally enhanced, Pb-free/halogen-free |
Pinout & Package
Package: QFN40 (6 mm × 6 mm × 0.95 mm) with exposed thermal pad; RoHS-compliant, halogen-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (LSDBL#) | Low-side gate disable input | Active-low signal enabling Discontinuous Conduction Mode; internally pulled up to Reg5V |
| 2 (Reg5V) | 5 V logic supply output | Stable +5 V output for external logic; requires ≥0.1 μF ceramic capacitor to CGND |
| 3 (VCIN) | Driver supply input | Accepts 4.5–5.5 V (tied to Reg5V) or 8–22 V; controls UVLO and regulator enable |
| 4 (BOOT) | Bootstrap voltage node | Internally switched +5 V supply for high-side gate drive; no external SBD required |
| 5, 37, Pad (CGND) | Control ground reference | Signal ground for driver logic; must be externally connected to PGND |
| 6 (GH) | High-side gate monitor | Output test point for high-side MOS FET gate voltage; not a control input |
| 36 (GL) | Low-side gate monitor | Output test point for low-side MOS FET gate voltage; not a control input |
| 38 (THWN) | Thermal warning open-drain output | Asserts low when driver IC junction reaches 150°C; requires external pull-up resistor |
| 39 (DISBL#) | Global disable input | Active-low shutdown signal; forces GL/GH low and disables PWM response |
| 40 (PWM) | PWM logic input | 5 V TTL-level input with tri-state detection window (1.4–3.3 V) for zero-current detection |
Key Features
| Feature | Design Value |
|---|---|
| Intel 6×6 DrMOS compliant | Fully meets specification for interoperability with Intel VR12/VR12.5 controllers and layout standards |
| Built-in bootstrap switch | Eliminates need for external Schottky diode, reducing BOM count and PCB area in high-frequency designs |
| Zero-current detection (ZCD) | Enables efficient light-load operation by detecting inductor current zero-crossing via mid-voltage PWM input |
| Integrated thermal warning (THWN) | Provides system-level thermal monitoring without interrupting power delivery or requiring external sensors |
| Tri-state PWM input support | Allows seamless transition between CCM and ZCD modes using same controller without additional logic |
| Remote on/off control (DISBL#) | Supports system-level power sequencing and fault recovery without cycling VIN or VCIN rails |
Applications
| Desktop CPU Core VRM | Server Memory Channel VRM |
|---|---|
Use Scenario: High-current, fast-transient voltage regulation for multi-core x86 processors in ATX motherboards. IC Role / Device Role / Timing Role: Primary power stage delivering 1.0–1.3 V @ up to 40 A per phase; synchronized to 600 kHz–1 MHz PWM controller. Use Value: Enables compact, high-efficiency single-phase or multiphase VRMs meeting Intel VR12.5 specifications with minimal external components. |
Use Scenario: Point-of-load regulation for DDR4/DDR5 memory modules in dual-socket server boards. IC Role / Device Role / Timing Role: Low-voltage, high-bandwidth power stage supplying 1.2 V or 1.1 V to memory subsystems with tight ripple requirements. Use Value: Delivers stable output under dynamic load steps while supporting ZCD for efficiency during idle periods. |
| Workstation GPU Core Supply | AI Accelerator Board VRM |
Use Scenario: High-power GPU core voltage rail in professional graphics workstations requiring robust thermal management. IC Role / Device Role / Timing Role: High-current DrMOS stage operating in parallel configurations; THWN signal feeds into system thermal management firmware. Use Value: Provides real-time thermal feedback and maintains regulation stability during sustained compute loads exceeding 300 W. |
Use Scenario: Multi-phase power delivery for FPGA or ASIC-based AI inference accelerators with aggressive power density targets. IC Role / Device Role / Timing Role: Integrated driver-MOSFET stage supporting >1 MHz switching and precise phase interleaving for ripple cancellation. Use Value: Reduces component count and layout complexity while maintaining <±1% output accuracy across wide temperature and load ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DrMOS power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR35201MTRPBF | 40 A rated, 6×6 mm QFN, but lacks integrated thermal warning output and uses external bootstrap diode | Requires additional discrete components for thermal monitoring and bootstrap circuit; less suitable for space-constrained server VRMs | Prefer R2J20657CNP#G2 when THWN integration and reduced BOM are critical |
| MP86957DQKT-LF-Z | 40 A rated, includes thermal warning, but supports only 5 V VCIN input (no 8–22 V option) and has narrower VIN range (4.5–14 V) | Limited to lower-input-voltage systems; incompatible with 16 V input designs where R2J20657CNP#G2 remains functional | Select R2J20657CNP#G2 for flexibility in VCIN sourcing and broader VIN tolerance |
Compared with IR35201MTRPBF and MP86957DQKT-LF-Z, the R2J20657CNP#G2 uniquely combines Intel 6×6 compliance, integrated bootstrap switch, THWN output, and dual VCIN operating modes - offering superior integration for next-generation server/desktop VRMs requiring minimal external components and robust thermal visibility.
Availability
R2J20657CNP#G2 is available at Aetrix Electronics and suitable for desktop motherboard VRMs, server CPU power delivery, workstation GPU supplies, AI accelerator board power stages, and high-density embedded computing platforms requiring stable component supply and long-term manufacturability.
Supply support for R2J20657CNP#G2 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, and SoC solutions for industrial, automotive, and computing markets.
The R2J20657CNP#G2 belongs to Renesas' DrMOS product line, engineered specifically for high-efficiency, high-frequency voltage regulator modules in datacenter and high-performance computing applications.
FAQ
What is the maximum safe operating temperature for the R2J20657CNP#G2?
The R2J20657CNP#G2 has an operating junction temperature range of –40°C to +150°C. Its thermal warning (THWN) output activates at 150°C (with ±15°C hysteresis), providing early indication before reaching the absolute maximum. Thermal shutdown occurs at the same 150°C threshold if THWN is unmonitored, ensuring device protection. Derating is required above 110°C ambient per the Safe Operating Area curve on page 4 of the datasheet.
Does the R2J20657CNP#G2 require an external bootstrap diode?
No, the R2J20657CNP#G2 does not require an external bootstrap diode. It integrates a built-in bootstrap switch that supplies +5 V to the BOOT pin during operation, eliminating the need for external Schottky diodes and reducing component count and PCB footprint - a key advantage over legacy DrMOS devices like the IR35201MTRPBF.
How does the zero-current detection (ZCD) function work on the R2J20657CNP#G2?
The R2J20657CNP#G2 detects zero-current mode when the PWM input transitions to a mid-voltage (1.4–3.3 V) or high-impedance state. This triggers internal logic to disable the low-side FET and enter discontinuous conduction, improving light-load efficiency. The function is confirmed in the truth table on page 2 and operational description on page 12 of the R07DS0584EJ0100 datasheet.
Can the R2J20657CNP#G2 operate with a 5 V VCIN supply?
Yes, the R2J20657CNP#G2 supports VCIN = 4.5–5.5 V when connected directly to the Reg5V output, as shown in the "VCIN 5 V Application" schematic on page 7. In this configuration, the internal 5 V regulator is bypassed, and VCIN serves solely as the driver supply - enabling compatibility with systems using external 5 V rails while maintaining full functionality including THWN and ZCD.
What is the purpose of the LSDBL# pin on the R2J20657CNP#G2?
The LSDBL# pin on the R2J20657CNP#G2 is an active-low input that disables the low-side MOS FET gate driver, forcing discontinuous conduction mode (DCM). When asserted low, it prevents low-side conduction regardless of PWM state - useful for controlled soft-start, fault isolation, or specific power-sequence requirements. It is internally pulled up to Reg5V via a 160 kΩ resistor.
R2J20657CNP#G2 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:
- -
R2J20657CNP#G2 FAQ
1.How can I place an order for R2J20657CNP#G2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R2J20657CNP#G2 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 R2J20657CNP#G2 reliable?
The price and inventory of R2J20657CNP#G2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R2J20657CNP#G2 is usually 5 days.
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R2J20657CNP#G2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R2J20657CNP#G2 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 R2J20657CNP#G2?
For technical support, including R2J20657CNP#G2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R2J20657CNP#G2 requirements.
6.How does Aetrix verify that R2J20657CNP#G2 is sourced from the original manufacturer or authorized distributors?
All R2J20657CNP#G2 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 R2J20657CNP#G2 meets industry standards.
7.What is the process for return or replacement of R2J20657CNP#G2?
All R2J20657CNP#G2 units undergo pre-shipment inspection (PSI). If there is an issue with R2J20657CNP#G2, 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 R2J20657CNP#G2 part is unused and in its original packaging.
Return procedure for R2J20657CNP#G2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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