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Renesas R2J20657BNP#G2
- Part No.:
- R2J20657BNP#G2
- Manufacturer:
- Renesas
- Category:
- Gate Drivers
- Package:
- -
- Datasheet:
-
R2J20657BNP#G2.pdf
- Description:
- HALF BRIDGE BASED MOSFET DRIVER
- Quantity:
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Inventory:2,492
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Product details
Overview
R2J20657BNP#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 (115°C) and shutdown (150°C) for desktop/server VRMs.
For engineers reviewing the R2J20657BNP#G2 datasheet, R2J20657BNP#G2 pinout, R2J20657BNP#G2 application, or R2J20657BNP#G2 equivalent, key selection criteria include its Intel 6×6 DrMOS compliance, built-in bootstrap switch eliminating external SBD, tri-state PWM input enabling zero-current detection, and dual thermal protection architecture.
Technical Context
The R2J20657BNP#G2 implements a synchronous buck topology with tightly coupled high-side and low-side MOS FETs and driver on a single die substrate, minimizing parasitic inductance for high-frequency operation. Its UVLO thresholds (VH = 7.4 V, VL = 7.0 V) and supervisor circuitry (active above 4.3 V, shutdown below 3.8 V) govern 5 V regulator enablement and driver activation.
It features dual-mode control logic: continuous conduction mode when LSDBL# is low, and zero-current detection mode when PWM is mid-voltage or high-impedance. Thermal monitoring uses open-drain THWN (115°C warning) and internal latch-off THDN (150°C shutdown), with DISBL# pulled low during thermal fault to notify system controller.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.5 V to 16 V DC - defines compatible input bus voltages for desktop/server 12 V rail applications. |
| Average Output Current | 40 A max - enables high-current CPU/GPU core voltage regulation without external parallel stages. |
| Switching Frequency | Up to 1 MHz+ - supports compact magnetics and fast transient response in modern VRMs. |
| Thermal Warning Threshold | 115°C ±15°C - provides early overtemperature alert while maintaining full operation until shutdown. |
| Thermal Shutdown Threshold | 150°C (latch-off) - protects device from destructive overheating with automatic DISBL# assertion. |
| VCIN Supply Range | 4.5–5.5 V or 8–22 V - allows flexible biasing via internal 5 V regulator or external supply. |
| PWM Input Logic | TTL-compatible (VH-PWM ≥ 4.1 V, VL-PWM ≤ 0.8 V) with tri-state detection - enables seamless interface with standard VRM controllers. |
Pinout & Package
Package: QFN40 (6 mm × 6 mm × 0.95 mm), thermally enhanced with three exposed die pads (High-side MOS Pad, Low-side MOS Pad, Driver Pad) requiring PCB soldering per datasheet note.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LSDBL# (1) | Low-side gate disable control | Assert low to force discontinuous conduction mode; internally pulled up to Reg5V (160 kΩ). |
| Reg5V (2) | 5 V logic regulator output | Supplies 5 V ±0.25 V at up to 10 mA; requires ≥0.1 μF ceramic capacitor to CGND. |
| VCIN (3) | Driver supply input | Feeds UVLO and supervisor; 4.5–5.5 V or 8–22 V range determines regulator enable state. |
| BOOT (4) | Bootstrap voltage node | Internally switched +5 V source for high-side gate drive; no external SBD required. |
| CGND (5, 37, Pad) | Control ground reference | Must be externally connected to PGND; separates control and power return paths. |
| GH (6) | High-side gate monitor | Provides access to high-side gate signal for probing or feedback; not a drive output. |
| VIN (8–14, Pad) | Main power input | Connects to 12 V input rail; multiple pins and pad ensure low-impedance path for high di/dt. |
| VSWH (7, 15, 29–35, Pad) | Switch node output | Phase node connecting high-side drain and low-side drain; requires low-inductance layout. |
| PGND (16–28) | Power ground return | Multiple pins and large pad minimize power loop inductance and thermal resistance. |
| GL (36) | Low-side gate monitor | Provides access to low-side gate signal; used for timing verification or diagnostics. |
| THWN (38) | Thermal warning indicator | Open-drain output active low at >115°C; requires external pull-up resistor (e.g., 51 kΩ). |
| DISBL# (39) | Global disable input | Drives GL/GH low when asserted; pulled low internally during thermal shutdown. |
| PWM (40) | PWM logic input | Accepts 5 V TTL signals; mid-voltage or high-Z triggers zero-current detection mode. |
Key Features
| Feature | Design Value |
|---|---|
| Intel 6×6 DrMOS compliant | Meets specification for interoperability with industry-standard VRM controllers and layout guidelines. |
| Built-in bootstrap switch | Eliminates need for external Schottky diode, reducing BOM count and layout complexity. |
| Tri-state PWM input support | Enables zero-current detection for improved light-load efficiency in DCM operation. |
| Dual thermal protection | Separate warning (115°C) and latch-off shutdown (150°C) provide graded thermal management. |
| Low-side MOS with integrated SBD | Reduces reverse recovery losses and ringing during body-diode conduction. |
Applications
| Desktop CPU Voltage Regulation | Server GPU Core Power |
|---|---|
Use Scenario: Primary 1.3 V core supply for multi-core x86 processors in ATX desktop motherboards. IC Role / Device Role / Timing Role: Integrated DrMOS power stage delivering high-current, high-efficiency buck conversion synchronized to VRM controller PWM. Use Value: Enables >1 MHz operation with minimal output ripple and fast transient response under dynamic CPU load changes. | Use Scenario: High-density 0.8–1.2 V core rail for PCIe-based AI accelerators in 1U/2U rack servers. IC Role / Device Role / Timing Role: Single-chip power stage handling up to 40 A per phase in multiphase VRM designs. Use Value: Reduces board area and thermal hotspots compared to discrete MOSFET + driver solutions. |
| Workstation Memory Subsystem | High-Performance Computing Node |
Use Scenario: DDR5 memory VDDQ/VPP regulation in professional workstations with ECC RAM modules. IC Role / Device Role / Timing Role: Synchronous buck converter providing tightly regulated, low-noise supply with fast load-step response. Use Value: Maintains signal integrity and timing margins under bursty memory access patterns. | Use Scenario: Core voltage delivery for FPGA-based compute nodes in edge inference clusters. IC Role / Device Role / Timing Role: Phase-leg module in interleaved multiphase topology supporting dynamic voltage/frequency scaling. Use Value: Supports adaptive power management via LSDBL#-controlled DCM and PWM tri-state ZCD modes. |
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 | 6×6 mm QFN, 40 A rating, but lacks integrated bootstrap switch and requires external SBD. | Same Intel 6×6 footprint; higher external component count increases layout sensitivity. | Choose if legacy design already includes external bootstrap diode and controller supports IR's specific timing. |
| ISL99227BIRZ-T | 40 A rating, 6×6 mm QFN, includes bootstrap switch, but thermal warning threshold is 125°C (vs. 115°C). | Compatible pinout and control interface; slightly higher thermal warning point reduces early alert margin. | Prefer for designs where tighter thermal headroom is acceptable and Renesas ecosystem integration is not required. |
Compared with IR35201MTRPBF and ISL99227BIRZ-T, the R2J20657BNP#G2 offers earlier thermal warning (115°C), eliminates external SBD via integrated bootstrap switch, and provides native tri-state PWM support for zero-current detection-reducing system-level complexity and improving light-load efficiency.
Availability
R2J20657BNP#G2 is available at Aetrix Electronics and suitable for desktop motherboard design, server VRM development, and high-performance computing power delivery requiring stable component supply and long-term industrial lifecycle support.
Supply support for R2J20657BNP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise markets.
The R2J20657BNP#G2 belongs to Renesas' DrMOS product line, engineered specifically for high-efficiency, high-density voltage regulation in Intel-compliant desktop and server platforms.
FAQ
What is the maximum safe operating temperature for R2J20657BNP#G2 before thermal shutdown activates?
The R2J20657BNP#G2 initiates thermal shutdown at a junction temperature of 150°C, with latch-off behavior that holds GL and GH low until VCIN drops below UVLO threshold. This ensures robust protection against sustained overtemperature conditions. The R2J20657BNP#G2 also provides thermal warning at 115°C via the open-drain THWN pin, allowing system-level mitigation before shutdown occurs.
Does R2J20657BNP#G2 require an external bootstrap diode?
No, the R2J20657BNP#G2 integrates a bootstrap switch that supplies +5 V to the BOOT pin internally, eliminating the need for an external Schottky diode. This simplifies layout, reduces BOM cost, and improves reliability by removing a common failure point. The R2J20657BNP#G2 datasheet explicitly states this feature in both the description and features sections.
How does the LSDBL# pin affect R2J20657BNP#G2 operation in discontinuous conduction mode?
When LSDBL# is driven low, the R2J20657BNP#G2 disables the low-side gate driver, forcing discontinuous conduction mode (DCM). This reduces light-load losses and improves efficiency at partial loads. The R2J20657BNP#G2 datasheet confirms LSDBL# is internally pulled up to Reg5V (160 kΩ), so leaving it open defaults to continuous conduction mode.
What are the valid voltage ranges for VCIN on R2J20657BNP#G2?
The R2J20657BNP#G2 supports two VCIN operating ranges: 4.5–5.5 V (when connected to Reg5V for internal regulator use) or 8–22 V (for direct high-voltage biasing). The UVLO threshold is 7.4 V (turn-on) and 7.0 V (turn-off), ensuring stable regulator enablement. These values are specified in the Recommended Operating Conditions table of the R2J20657BNP#G2 datasheet.
Can R2J20657BNP#G2 operate with a 3.3 V PWM input signal?
No, the R2J20657BNP#G2 requires a 5 V TTL-level PWM input: minimum high-level voltage is 4.1 V and maximum low-level voltage is 0.8 V. A 3.3 V signal falls outside the valid input range and may cause unreliable switching or undefined behavior. The R2J20657BNP#G2 datasheet specifies these thresholds in the Electrical Characteristics table under "PWM input high level" and "PWM input low level."
R2J20657BNP#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:
- -
R2J20657BNP#G2 FAQ
1.How can I place an order for R2J20657BNP#G2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R2J20657BNP#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 R2J20657BNP#G2 reliable?
The price and inventory of R2J20657BNP#G2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R2J20657BNP#G2 is usually 5 days.
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R2J20657BNP#G2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R2J20657BNP#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 R2J20657BNP#G2?
For technical support, including R2J20657BNP#G2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R2J20657BNP#G2 requirements.
6.How does Aetrix verify that R2J20657BNP#G2 is sourced from the original manufacturer or authorized distributors?
All R2J20657BNP#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 R2J20657BNP#G2 meets industry standards.
7.What is the process for return or replacement of R2J20657BNP#G2?
All R2J20657BNP#G2 units undergo pre-shipment inspection (PSI). If there is an issue with R2J20657BNP#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 R2J20657BNP#G2 part is unused and in its original packaging.
Return procedure for R2J20657BNP#G2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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