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Renesas ISL99392FRZ-TR5935
- Part No.:
- ISL99392FRZ-TR5935
- Manufacturer:
- Renesas
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- -
- Datasheet:
-
ISL99392FRZ-TR5935.pdf
- Description:
- SMART POWER STAGE GEN2 (SPS) MOD
- Quantity:
- Payment:
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Inventory:1,681
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Product details
Overview
ISL99392FRZ-TR5935 from Renesas Electronics is a 90A Smart Power Stage (SPS) module with integrated high-accuracy current sensing (±3% continuous), master temperature monitor (TOUT, 8mV/°C), and individual phase temperature reporting (TREF, 4mV/°C), designed for use with ISL68/69xxx digital multiphase controllers in core VR applications for AI accelerators and server CPUs.
For engineers reviewing the ISL99392FRZ-TR5935 datasheet, ISL99392FRZ-TR5935 pinout, ISL99392FRZ-TR5935 application, or ISL99392FRZ-TR5935 equivalent, key selection criteria include tri-state PWM compatibility (3.3V), 1.25MHz max switching frequency, integrated SROCP/OTP/UVLO protection, and 5×6 PQFN thermally enhanced package for high-density POL DC/DC designs.
Technical Context
The ISL99392FRZ-TR5935 implements a fully integrated power stage with synchronous buck topology, featuring dual temperature monitoring paths (master TOUT and per-phase TREF) and precision current sensing without external DCR networks. It supports dynamic load-line regulation when paired with Renesas ISL682xx/ISL692xx controllers via tri-state PWM interface.
Its fault protection architecture includes high-side FET short detection, Smart Reverse Overcurrent Protection (SROCP), over-temperature shutdown (OTP), and VCC undervoltage lockout (UVLO), all reported through dedicated FLT# and FAULT# outputs. Switching operation is validated up to 1.25MHz with VIN range of 3.0V–16V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | +3.0V to +16V - supports wide-input industrial and server rail voltages including +12V and +5V input stages. |
| Continuous Current | 90A - rated output capability enables single-phase replacement for multi-phase legacy VRs in GPU/AI accelerator rails. |
| Current Sense Accuracy | ±3% - enables precise system-level current telemetry and load-line compliance without calibration. |
| Master Temp Sensitivity | 8mV/°C (TOUT) - provides analog thermal feedback to DMP controller for global thermal management. |
| Phase Temp Sensitivity | 4mV/°C (TREF) - delivers per-phase die temperature data for N+1 redundancy and hot-spot mitigation. |
| Max Switching Frequency | 1.25MHz - allows compact output filter design with reduced inductor size and improved transient response. |
| PWM Input Logic | 3.3V tri-state compatible - ensures robust communication with ISL682xx/ISL692xx controllers during fault recovery and phase shedding. |
Pinout & Package
Package: 5mm × 6mm, 32-pin PQFN with exposed thermal pad (RoHS compliant, Exemption 7a). Pinout validated per Renesas ISL99392R5935 datasheet Rev.1.01.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-side power input | Accepts 3.0–16V input; connects to bulk capacitor and high-side FET source. |
| VOUT | Power stage output | Drives buck inductor; shared node between high- and low-side FETs. |
| GND | Power ground reference | Common return path for PVCC, VCC, and power FET sources; tied to thermal pad. |
| PWM | Tri-state gate control input | 3.3V-compatible digital input controlling high-side FET turn-on/timing and fault-induced tri-state behavior. |
| TOUT | Master temperature output | Analog voltage (8mV/°C) representing average die temperature for system-level thermal throttling. |
| TREF | Individual phase temp output | Analog voltage (4mV/°C) reflecting local hot-spot temperature for per-phase thermal balancing. |
| FLT# | Fault status indicator | Active-low open-drain signal asserting on OTP, SROCP, or HFET short events. |
| CS#n | Current sense output | Analog current monitor output referenced to GND; ±3% accuracy across line/load/temp. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sensing | Eliminates external DCR sensing network and thermal compensation circuitry, reducing BOM count and layout area. |
| Dual temperature monitoring | Enables both global (TOUT) and per-phase (TREF) thermal management for N+1 redundant VR systems. |
| Smart Reverse OCP (SROCP) | Detects reverse conduction faults during light-load or discontinuous conduction mode, preventing shoot-through damage. |
| Tri-state PWM interface | Allows safe gate driver disable during fault conditions without requiring external logic or controller intervention. |
| Thermally enhanced 5×6 PQFN | Supports >90A continuous current with junction-to-board θJB < 1.5°C/W, enabling high-power density in space-constrained VRMs. |
Applications
| AI Accelerator VR | Server CPU Core VR |
|---|---|
Use Scenario: High-current, fast-transient power delivery to NVIDIA H100 or AMD MI300X GPU/ASIC dies under dynamic workloads. IC Role / Device Role / Timing Role: Primary power stage delivering regulated 0.6–1.2V at up to 90A per phase with sub-100ns transient response. Use Value: ±3% current accuracy and dual temperature reporting enable precise load-line tracking and per-die thermal derating in multi-rail AI systems. | Use Scenario: Multi-phase core voltage regulation for Intel Xeon Scalable or AMD EPYC processors in 1U/2U rack servers. IC Role / Device Role / Timing Role: Single-phase SPS unit operating in parallel with others under ISL69269 controller coordination. Use Value: 1.25MHz switching capability reduces output inductance by >40% versus 600kHz alternatives, shrinking VR footprint without sacrificing regulation stability. |
| Cloud Computing POL Converter | Gaming Console GPU VR |
Use Scenario: Point-of-load conversion for memory I/O, PCIe switch, or FPGA auxiliary rails in hyperscale data center switches. IC Role / Device Role / Timing Role: Standalone or controller-managed POL stage supporting 3.3V–12V input to 0.8–3.3V output with tight ripple requirements. Use Value: Integrated UVLO and OTP eliminate need for external supervisor ICs, simplifying secondary rail design and improving startup reliability. | Use Scenario: Graphics voltage regulation in Sony PlayStation 5 or Microsoft Xbox Series X GPU subsystems with burst-mode gaming loads. IC Role / Device Role / Timing Role: High-efficiency buck stage delivering 0.8–1.35V at up to 90A with adaptive phase shedding. Use Value: Tri-state PWM interface enables seamless phase disable during idle states, reducing no-load power loss by >65% compared to fixed-enable alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL99390FRZ-T7A | 60A rating, same 5×6 PQFN package, identical TOUT/TREF sensitivity, but lacks SROCP and tri-state PWM. | Suitable for lower-current VRs where reverse OCP is not required; limited to ≤60A steady-state loads. | Select when cost-sensitive designs tolerate reduced fault coverage and lower current capacity. |
| MP87653GL-Z | 90A rating, 1.5MHz max frequency, 4.5–16V VIN, but uses 4.5V PWM logic and lacks individual TREF output. | Compatible with non-Renesas controllers; no per-phase thermal reporting for N+1 systems. | Choose for mixed-controller environments where master TOUT-only thermal feedback suffices. |
Compared with ISL99392FRZ-TR5935, ISL99390FRZ-T7A trades current capacity and advanced protection for cost, while MP87653GL-Z offers higher frequency but omits per-phase thermal telemetry-making ISL99392FRZ-TR5935 optimal for AI/server VRs demanding full fault visibility and N+1 thermal management.
Availability
ISL99392FRZ-TR5935 is available at Aetrix Electronics and suitable for AI accelerator VRs, server CPU core regulators, and high-density POL DC/DC converters requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for ISL99392FRZ-TR5935 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 Japan-based semiconductor manufacturer specializing in microcontrollers, analog power devices, and timing solutions for automotive, industrial, and datacenter applications.
The ISL99392FRZ-TR5935 belongs to Renesas' Smart Power Stage family, engineered specifically for high-accuracy, high-current digital multiphase VRMs in AI, cloud, and enterprise computing infrastructure.
FAQ
What is the maximum continuous current rating for the ISL99392FRZ-TR5935?
The ISL99392FRZ-TR5935 is rated for 90A continuous output current under specified thermal conditions (TA ≤ 70°C, 2-layer board, 1 oz copper). This rating assumes proper PCB layout with thermal vias to the internal thermal pad and adequate airflow. Derating applies above 70°C ambient or with reduced copper area. The ISL99392FRZ-TR5935 achieves this using integrated high- and low-side MOSFETs with optimized RDS(on) and thermal resistance.
Does the ISL99392FRZ-TR5935 support tri-state PWM operation, and which controllers is it compatible with?
Yes, the ISL99392FRZ-TR5935 features a 3.3V-compatible tri-state PWM input designed explicitly for interoperability with Renesas ISL682xx and ISL692xx digital multiphase controllers. This allows the controller to force the ISL99392FRZ-TR5935 into high-impedance state during fault conditions or phase shedding. The ISL99392FRZ-TR5935 does not support 5V PWM logic; that functionality is reserved for the ISL99392BR5935 variant.
How does the ISL99392FRZ-TR5935 implement temperature monitoring, and what are the output sensitivities?
The ISL99392FRZ-TR5935 provides two independent analog temperature outputs: TOUT (master die temperature, 8mV/°C) and TREF (individual phase temperature, 4mV/°C). Both are ratiometric to VCC and require no external calibration. TOUT feeds system-level thermal management in the DMP controller, while TREF enables per-phase thermal balancing in N+1 redundant configurations. These outputs are validated across –40°C to +125°C junction range.
What fault protections are integrated into the ISL99392FRZ-TR5935?
The ISL99392FRZ-TR5935 integrates five fault protections: high-side FET overcurrent, high-side FET short-circuit, Smart Reverse Overcurrent Protection (SROCP), over-temperature shutdown (OTP), and VCC undervoltage lockout (UVLO). Faults are reported via open-drain FLT# and FAULT# outputs. SROCP specifically detects reverse conduction during light-load operation, distinguishing the ISL99392FRZ-TR5935 from basic power stages lacking this feature.
Is the ISL99392FRZ-TR5935 RoHS compliant, and what is its package type?
Yes, the ISL99392FRZ-TR5935 is RoHS compliant with exemption 7a (lead in high-melting-temperature solder) and packaged in a 5mm × 6mm, 32-pin PQFN with exposed thermal pad. This thermally enhanced package achieves low junction-to-board thermal resistance (<1.5°C/W), critical for sustaining 90A continuous operation in high-density VRM layouts. The ISL99392FRZ-TR5935 requires reflow per J-STD-020 profile for lead-free assembly.
ISL99392FRZ-TR5935 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- -
- Applications:
- -
- Interface:
- -
- Load Type:
- -
- Technology:
- -
- Rds On (Typ):
- -
- Current - Output / Channel:
- -
- Current - Peak Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Fault Protection:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ISL99392FRZ-TR5935 FAQ
1.How can I place an order for ISL99392FRZ-TR5935 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL99392FRZ-TR5935 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 ISL99392FRZ-TR5935 reliable?
The price and inventory of ISL99392FRZ-TR5935 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL99392FRZ-TR5935 is usually 5 days.
3.What payment methods are accepted for ISL99392FRZ-TR5935?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL99392FRZ-TR5935 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL99392FRZ-TR5935?
ISL99392FRZ-TR5935 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL99392FRZ-TR5935 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 ISL99392FRZ-TR5935?
For technical support, including ISL99392FRZ-TR5935 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL99392FRZ-TR5935 requirements.
6.How does Aetrix verify that ISL99392FRZ-TR5935 is sourced from the original manufacturer or authorized distributors?
All ISL99392FRZ-TR5935 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 ISL99392FRZ-TR5935 meets industry standards.
7.What is the process for return or replacement of ISL99392FRZ-TR5935?
All ISL99392FRZ-TR5935 units undergo pre-shipment inspection (PSI). If there is an issue with ISL99392FRZ-TR5935, 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 ISL99392FRZ-TR5935 part is unused and in its original packaging.
Return procedure for ISL99392FRZ-TR5935:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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