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Renesas ISL99227FRZ-TR5784
- Part No.:
- ISL99227FRZ-TR5784
- Manufacturer:
- Renesas
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- Modules
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ISL99227FRZ-TR5784.pdf
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Product details
Overview
ISL99227FRZ-TR5784 from Renesas Electronics is a Smart Power Stage (SPS) module integrating high-side and low-side MOSFETs, gate drivers, current monitor (IMON), temperature monitor (TMON), and fault protection for multiphase VR applications. It supports 60A DC output, 4.5V–18V input, 3.3V tri-state PWM interface, and operates up to +125°C junction temperature in server and CPU core regulator designs.
For engineers reviewing the ISL99227FRZ-TR5784 datasheet, ISL99227FRZ-TR5784 pinout, ISL99227FRZ-TR5784 application, or ISL99227FRZ-TR5784 equivalent, this page delivers verified specifications, thermal performance data, fault reporting behavior, and integration guidance with ISL68xxx/69xxx digital multiphase controllers - critical for high-density VRM design validation and BOM selection.
Technical Context
The ISL99227FRZ-TR5784 implements downslope current sensing via integrated low-side FET monitoring, delivering ±3% IMON accuracy across –40°C to +125°C with REFIN-referenced output. Its 3.3V-compatible tri-state PWM input enables robust handshake with Renesas DMP controllers during abnormal conditions, including forced shutdown and recovery sequencing.
Thermal management is enabled by an 8mV/°C TMON output with over-temperature flag at +140°C (±15°C hysteresis), while fault protection includes HFET short detection (SW >100mV during GL high), VIN/VCC UVLO, and open-drain FAULT# reporting synchronized to IMON/TMON fault asserts. The device uses internal bootstrap NFET and dead-time optimized logic to prevent shoot-through.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Current Rating | 60A DC - supports high-current CPU/GPU core rails without external current-sense resistors |
| Input Voltage Range | +4.5V to +18V - compatible with 5V, 12V, and 19V intermediate bus architectures |
| Current Monitor Accuracy | ±3% (≥10A, TJ = +40°C to +125°C) - enables precise closed-loop current sharing in multiphase systems |
| Temperature Monitor Slope | 8mV/°C with 0.6V offset - allows direct junction temperature readback and thermal margining |
| Switching Frequency Support | Up to 2MHz - enables compact magnetics and fast transient response in high-density POL converters |
| Thermal Resistance θJA | 10.7°C/W (0 LFM, SPS eval board) - validated for thermally constrained server PCB layouts |
| HFET / LFET rDS(ON) | 3.84mΩ / 0.76mΩ - minimizes conduction loss at full load and improves light-load efficiency |
Pinout & Package
ISL99227FRZ-TR5784 is housed in a RoHS-compliant 32-lead 5×5 mm PQFN Double Cooling package with exposed thermal pad, optimized for minimal PCB footprint and enhanced thermal dissipation in multilayer server boards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 LGCTRL | Low-side gate control input | Forces LFET off when pulled low; enables independent phase control or safe shutdown |
| 2 VCC | +5V logic bias supply | Must be decoupled with ≥1µF X7R ceramic near pin; powers logic and POR circuitry |
| 3 PVCC | +5V gate drive bias supply | Separate from VCC; powers high-current gate drivers; requires local 1µF decoupling |
| 9–16 SW | Switch node (HFET source/LFET drain) | Connects directly to output inductor; carries full AC ripple current; must minimize loop area |
| 21–23, 27 VIN | Main power input (HFET drain) | Requires ≥2×10µF X5R/X7R ceramics near pins; bottom-side vias to internal VIN paddle mandatory |
| 25 BOOT | Floating bootstrap supply | Connected to PHASE internally; requires 0.1–0.22µF ceramic between BOOT and PHASE |
| 26 FAULT# | Open-drain fault reporting | Pulled low on any fault (OCP, OT, UVLO, HFET short); used to disable controller EN pin |
| 28 PWM | 3.3V tri-state PWM input | Accepts 3.3V logic; tri-state window (1.3–1.8V) forces both FETs off; not compatible with 5V PWM |
| 30 REFIN | Reference voltage input for IMON | 0.8–1.6V range; connects to controller's current sense input; sets IMON zero point |
| 31 IMON | Current monitor output | REFIN-referenced; pulled high to REFIN+1.2V during HFET OCP or short; ≤56pF load limit |
| 32 TMON | Temperature monitor output | 0.6V + 8mV/°C; multiphase buses can be wire-OR'd; pulled high to 2.5V at OT fault |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated LGCTRL pin | Enables independent low-side FET control for advanced phase shedding and adaptive dead-time tuning |
| Integrated downslope current sensing | Eliminates need for external DCR network or sense resistors, reducing BOM count and thermal compensation complexity |
| 8mV/°C TMON with OT flag | Provides real-time junction temperature feedback and latched over-temperature indication at +140°C |
| HFET short detection | Monitors SW node during GL high; triggers fault if voltage exceeds 100mV - detects catastrophic failure before system damage |
| Tri-state PWM with hold-off timing | Guarantees safe FET shutdown within 40–50ns of entering tri-state window; prevents shoot-through during controller reset |
| Internal bootstrap NFET | Replaces discrete bootstrap diode; reduces component count and improves reliability in high-frequency operation |
Applications
| Server CPU Core Regulator | GPU VRM Module |
|---|---|
|
Use Scenario: High-current, multi-phase buck converter supplying 1.0–1.8V to modern x86 CPUs in dual-socket servers. IC Role / Device Role / Timing Role: Smart Power Stage providing switching, current/temperature telemetry, and fault signaling to ISL69137 controller. Use Value: Enables accurate per-phase current balancing and thermal derating at 60A per phase, supporting >500W core power delivery. |
Use Scenario: Compact, high-efficiency VRM for discrete graphics cards requiring rapid load transients and tight voltage regulation. IC Role / Device Role / Timing Role: Integrated power stage with 2MHz switching capability and IMON-based current loop feedback. Use Value: Reduces solution size by eliminating external current-sense components while maintaining ±3% current reporting accuracy under dynamic loads. |
| Cloud Computing POL Converter | High-Density Networking ASIC Supply |
|
Use Scenario: Point-of-load regulator for FPGA or ASIC in hyperscale data center switches with strict thermal and space constraints. IC Role / Device Role / Timing Role: Thermally enhanced SPS delivering 60A in 5×5 mm footprint, interfaced to ISL68228 controller via TMON/IMON bus. Use Value: Achieves 96% peak efficiency at 1.2V/60A (VIN=12V) with θJA = 10.7°C/W, enabling fanless operation in dense chassis. |
Use Scenario: Multiphase VR for 100G/400G networking line cards where EMI, thermal density, and fault resilience are critical. IC Role / Device Role / Timing Role: Fault-aware power stage with open-drain FAULT# reporting to system supervisor IC and controller. Use Value: Provides immediate hardware-level fault isolation (HFET short, OT, OCP) without software intervention, improving system uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Smart Power Stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL99227BFRZ-T | 5.0V PWM input (vs. 3.3V); identical 60A rating, TMON/IMON, and package | Designed for use with ISL6617A phase doubler or analog controllers with 5V PWM outputs | Select ISL99227BFRZ-T only when controller PWM logic is 5V; not interoperable with ISL68xxx/69xxx DMP controllers |
| ISL99140IRZ-T | 40A rating, 3.3V PWM, no IMON/TMON integration; 40-lead 6×6 QFN package | Lacks current/temperature telemetry; requires external DCR sensing and thermal monitoring circuitry | Choose ISL99140IRZ-T only for cost-sensitive, lower-current applications where telemetry is handled externally |
Compared with ISL99227BFRZ-T, ISL99227FRZ-TR5784 enables tighter integration with digital multiphase controllers via 3.3V PWM compatibility and eliminates external sensing components. Against ISL99140IRZ-T, it delivers higher current capacity, embedded telemetry, and superior thermal performance in half the footprint area.
Availability
ISL99227FRZ-TR5784 is available at Aetrix Electronics and suitable for server CPU core regulators, GPU VRMs, cloud computing POL converters, and high-density networking ASIC supplies requiring stable component supply and long-term industrial lifecycle support.
Supply support for ISL99227FRZ-TR5784 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 high-performance mixed-signal solutions for automotive, industrial, and datacenter applications.
The ISL99227FRZ-TR5784 belongs to Renesas' Smart Power Stage product line, engineered specifically for high-efficiency, high-density multiphase VRMs in AI accelerators, enterprise CPUs, and next-generation networking infrastructure.
FAQ
What is the maximum operating junction temperature for ISL99227FRZ-TR5784?
The ISL99227FRZ-TR5784 is rated for continuous operation up to +125°C junction temperature, with over-temperature protection triggering at +140°C (typical) and releasing at +125°C (typical hysteresis). This rating is validated for the FRZ grade and aligns with its –40°C to +125°C ambient operating range specification.
Does ISL99227FRZ-TR5784 support 5V PWM input signals?
No, ISL99227FRZ-TR5784 supports only 3.3V-compatible tri-state PWM input. Its internal impedance network (33.5kΩ sink / 16.5kΩ source) and tri-state window (1.3–1.8V) are calibrated for 3.3V logic levels. For 5V PWM compatibility, use ISL99227BFRZ-T instead.
How does the IMON output of ISL99227FRZ-TR5784 interface with the controller?
The IMON output of ISL99227FRZ-TR5784 is referenced to the REFIN pin and provides a current-proportional voltage (REFIN + IL × gain). It connects directly to the controller's current-sense input, requires ≤56pF capacitance between IMON and REFIN, and pulls high to REFIN+1.2V during overcurrent or HFET short faults.
Can multiple ISL99227FRZ-TR5784 devices share a common TMON bus?
Yes, ISL99227FRZ-TR5784 TMON outputs can be wire-OR'd into a common bus. Each device drives TMON with an open-drain structure; the highest voltage (i.e., highest temperature) dominates the bus, allowing centralized thermal monitoring across all phases without additional logic.
What fault conditions cause the FAULT# pin of ISL99227FRZ-TR5784 to assert?
The FAULT# pin of ISL99227FRZ-TR5784 is pulled low during overcurrent (HFET >90A), over-temperature (+140°C), HFET short (SW >100mV during GL high), VCC UVLO (<3.58V), or VIN UVLO (<3.5V). All these conditions are monitored independently and reported simultaneously through this single open-drain output.
ISL99227FRZ-TR5784 Specifications
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ISL99227FRZ-TR5784 FAQ
1.How can I place an order for ISL99227FRZ-TR5784 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL99227FRZ-TR5784 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 ISL99227FRZ-TR5784 reliable?
The price and inventory of ISL99227FRZ-TR5784 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL99227FRZ-TR5784 is usually 5 days.
3.What payment methods are accepted for ISL99227FRZ-TR5784?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL99227FRZ-TR5784 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL99227FRZ-TR5784?
ISL99227FRZ-TR5784 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL99227FRZ-TR5784 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 ISL99227FRZ-TR5784?
For technical support, including ISL99227FRZ-TR5784 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL99227FRZ-TR5784 requirements.
6.How does Aetrix verify that ISL99227FRZ-TR5784 is sourced from the original manufacturer or authorized distributors?
All ISL99227FRZ-TR5784 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 ISL99227FRZ-TR5784 meets industry standards.
7.What is the process for return or replacement of ISL99227FRZ-TR5784?
All ISL99227FRZ-TR5784 units undergo pre-shipment inspection (PSI). If there is an issue with ISL99227FRZ-TR5784, 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 ISL99227FRZ-TR5784 part is unused and in its original packaging.
Return procedure for ISL99227FRZ-TR5784:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL99227FRZ-TR5784 Tags
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UMFT234XF
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