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Renesas ISL99227FRZ-TR5798
- Part No.:
- ISL99227FRZ-TR5798
- Manufacturer:
- Renesas
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 32-PowerWFQFN
- Datasheet:
-
ISL99227FRZ-TR5798.pdf
- Description:
- ISL99227FRZ-TR5798
- Quantity:
- Payment:
- Shipping:
Inventory:2,082
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Product details
Overview
ISL99227FRZ-TR5798 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 circuitry. It delivers 60A DC output with ±3% current sensing accuracy, 8mV/°C thermal sensing, and supports up to 2MHz switching in 4.5V–18V input systems. Designed for multiphase VRMs in server CPU/GPU core regulation, it eliminates external DCR sensing networks and enables precise closed-loop control with ISL68xxx/69xxx digital controllers.
For engineers reviewing the ISL99227FRZ-TR5798 datasheet, ISL99227FRZ-TR5798 pinout, ISL99227FRZ-TR5798 application, or ISL99227FRZ-TR5798 equivalent, this page provides verified functional identity, validated 32-pin 5×5 PQFN package mapping, confirmed tri-state 3.3V PWM interface, integrated downslope current sensing, and real-world thermal/current monitoring behavior - all essential for high-density POL design and controller co-verification.
Technical Context
The ISL99227FRZ-TR5798 implements a synchronous buck power stage with integrated 3.84mΩ high-side and 0.76mΩ low-side MOSFETs, driven by independent GH/GL logic-level gate drivers featuring shoot-through protection and programmable dead time. Its tri-state 3.3V PWM input enables robust fault-handling coordination with Renesas digital multiphase controllers, while internal bootstrap NFET replaces external diode for compact layout.
Current sensing uses downslope sampling of LFET conduction with 160ns blanking, referenced to REFIN (0.8–1.6V), yielding ±3% accuracy across –40°C to +125°C. Temperature monitoring outputs linear 0.6V + 8mV/°C on TMON, with over-temperature flag at +140°C (15°C hysteresis), and fault reporting via open-drain FAULT# tied to VCC/VIN POR, HFET short, overcurrent (90A trip), and thermal events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 18V - supports standard 5V, 12V, and 19V intermediate bus rails in server and networking POL applications. |
| Continuous Current Rating | 60A - rated for sustained load delivery in multi-phase VRMs without derating at +125°C junction. |
| PWM Interface | 3.3V tri-state compatible - enables direct connection to ISL68xxx/69xxx controllers without level-shifting; shutdown window (1.3–1.8V) forces safe FET-off state. |
| Current Monitor Accuracy | ±3% (≥10A, –40°C to +125°C) - eliminates need for external DCR network and thermal compensation circuitry. |
| Temperature Sensing | 8mV/°C linear output (0.6V + 8mV × TJ) - allows multiphase thermal bus sharing; OT flag asserted at +140°C with 15°C hysteresis. |
| Fault Reporting | Open-drain FAULT# pin - asserts low on UVLO (VCC/VIN), overcurrent, overtemperature, or HFET short; resets only after fault clearance and POR recovery. |
| Package | 32-lead 5×5 mm PQFN Double Cooling - thermally enhanced footprint with bottom thermal pad and multiple GND/VIN vias for <4°C/W θJC and 10.7°C/W θJA (0 LFM). |
Pinout & Package
ISL99227FRZ-TR5798 is housed in a RoHS-compliant 32-lead 5×5 mm PQFN package with double-sided cooling (exposed thermal pad on underside). The package features 12 dedicated GND pins (including pads 33 and 35), 8 VIN pins (including pad 34), and optimized power loop routing to minimize parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LGCTRL | Lower gate control input | Logic signal forcing GL low (LFET off); must be driven or tied high - never left floating. |
| PWM | Tri-state gate driver input | 3.3V-compatible PWM command; mid-level window (1.3–1.8V) disables both FETs for safe shutdown. |
| IMON / REFIN | Current monitor output / reference input | IMON = REFIN + 1.2V during overcurrent; REFIN sets 0.8–1.6V bias for accurate downslope current sensing. |
| TMON | Temperature monitor output | Linear analog voltage (0.6V + 8mV/°C); multiphase designs can wire-or TMON pins to report highest die temperature. |
| FAULT# | Open-drain fault indicator | Pulled low on any fault (UVLO, OC, OT, HFET short); used to disable controller EN or trigger system alert. |
| VIN / SW / PHASE / BOOT | Power path terminals | VIN supplies HFET drain; SW is HFET source/LFET drain node; PHASE returns boot capacitor; BOOT drives HFET gate via internal NFET bootstrap switch. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MOSFET pair | 3.84mΩ HS + 0.76mΩ LS FETs - enables >95% efficiency at 60A/1.2V with minimal conduction loss and no external FET selection. |
| Downslope current sensing | No external sense resistor or DCR network required - reduces BOM count, PCB area, and thermal drift errors in high-frequency VRMs. |
| Dedicated LFET control (LGCTRL) | Independent logic-level override of low-side FET - supports advanced control schemes like adaptive dead-time or lossless zero-voltage switching sequences. |
| Comprehensive fault protection | Hardware-enforced responses to HFET short (100mV SW threshold), 90A overcurrent, +140°C overtemperature, and dual UVLO - eliminates need for external supervision ICs. |
| Thermally enhanced PQFN | Double-cooling structure with exposed thermal pad and 12 GND pins - achieves θJC = 4°C/W, enabling high-power density in constrained 1U server and AI accelerator modules. |
Applications
| Server CPU Core VRM | AI Accelerator GPU Power |
|---|---|
Use Scenario: High-current, fast-transient regulation for x86 or Arm-based server processors requiring dynamic voltage scaling under 100A+ loads. IC Role / Device Role / Timing Role: Smart Power Stage providing phase-leg current, temperature, and fault telemetry to ISL69137/ISL69127 controllers for per-phase current balancing and thermal derating. Use Value: ±3% IMON accuracy and shared TMON bus enable precise per-phase current limiting and hot-spot mitigation across 8+ phases without external sensors. | Use Scenario: Multi-phase POL supply for NVIDIA/AMD AI GPUs where thermal density exceeds 1kW/in² and transient response must settle within 500ns. IC Role / Device Role / Timing Role: Integrated SPS delivering 60A/phase with 2MHz capability and hardware fault signaling to prevent catastrophic rail collapse during inference bursts. Use Value: Open-drain FAULT# directly disables controller EN pin within 1µs of overcurrent detection, preventing secondary damage during short-circuit events. |
| Cloud Networking ASIC Supply | High-Density Storage Controller VR |
Use Scenario: Compact 12V-input VR for 400G Ethernet switch ASICs operating at 0.8V/80A with strict EMI and thermal constraints. IC Role / Device Role / Timing Role: SPS module interfacing with ISL68224 controller via 3.3V tri-state PWM, using IMON/REFIN for DCR-less current loop and TMON for board-level thermal mapping. Use Value: Eliminates 4–6 discrete components per phase (sense resistors, op-amps, thermal ICs), reducing layout area by >35% and improving long-term calibration stability. | Use Scenario: Dual-rail (1.8V I/O + 1.2V core) power delivery for NVMe SSD controllers in enterprise storage arrays with 24/7 uptime requirements. IC Role / Device Role / Timing Role: Fault-resilient power stage with latched HFET short detection and POR-gated operation - ensures safe startup and graceful shutdown during brownout conditions. Use Value: VCC/VIN UVLO monitoring and automatic FAULT# assertion prevent partial turn-on and shoot-through during input ramp-up, increasing field reliability by >99.99% MTBF. |
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, package, and monitoring features | Designed for ISL6617A phase doublers and legacy 5V PWM controllers - not interoperable with ISL68xxx/69xxx 3.3V systems | Select ISL99227BFRZ-T only when paired with 5V-output controllers; ISL99227FRZ-TR5798 is mandatory for ISL68228/ISL69137-based designs. |
| ISL99140IRZ-T | 40A rating, 40-lead 6×6 QFN, no IMON/TMON integration - requires external current/thermal sensing | Targeted at cost-sensitive, lower-current applications where discrete sensing is acceptable; lacks fault-reporting intelligence | Choose ISL99140IRZ-T only if system-level current/temperature feedback is handled externally and 60A capacity is unnecessary. |
Compared with ISL99227BFRZ-T, ISL99227FRZ-TR5798 enables tighter timing margins and lower gate drive losses in 3.3V-controller ecosystems, while ISL99140IRZ-T trades integrated telemetry for lower unit cost and simpler thermal management - making ISL99227FRZ-TR5798 the sole choice for high-accuracy, high-density, controller-coordinated multiphase VRMs.
Availability
ISL99227FRZ-TR5798 is available at Aetrix Electronics and suitable for server CPU VRMs, AI accelerator GPU power, cloud networking ASIC supplies, and high-density storage controller VR applications requiring stable component supply, full lifecycle support, and traceable sourcing.
Supply support for ISL99227FRZ-TR5798 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 timing solutions for automotive, industrial, and datacenter applications.
The ISL99227FRZ-TR5798 belongs to Renesas' Smart Power Stage family, engineered specifically for high-efficiency, high-density multiphase DC/DC conversion in next-generation servers, AI accelerators, and networking infrastructure - emphasizing integrated telemetry, hardware fault resilience, and seamless controller interoperability.
FAQ
What is the maximum continuous current rating of the ISL99227FRZ-TR5798?
The ISL99227FRZ-TR5798 is rated for 60A continuous DC output current across its full operating junction temperature range of –40°C to +125°C. This rating assumes proper PCB thermal design with ≥10 vias per GND/VIN pad and adherence to Renesas' recommended layout guidelines for the 5×5 PQFN Double Cooling package.
Does the ISL99227FRZ-TR5798 support 2MHz switching frequency?
Yes, the ISL99227FRZ-TR5798 supports up to 2MHz switching frequency. Its gate drivers feature propagation delays of ≤40ns (GH turn-off) and ≤23ns (GL turn-off), and its integrated MOSFETs (3.84mΩ HS / 0.76mΩ LS) maintain low switching losses at high frequencies - enabling compact magnetics and fast transient response in modern VRMs.
How does current monitoring work on the ISL99227FRZ-TR5798?
The ISL99227FRZ-TR5798 performs downslope current sensing on the low-side FET during conduction, with 160ns blanking time to reject switching noise. IMON outputs a voltage relative to REFIN (0.8–1.6V), achieving ±3% accuracy from 10A to 60A across –40°C to +125°C - eliminating external DCR networks and associated thermal compensation circuits.
What fault protections are integrated into the ISL99227FRZ-TR5798?
The ISL99227FRZ-TR5798 integrates hardware-based protection against HFET overcurrent (90A trip), HFET short (100mV SW threshold), overtemperature (+140°C trip), VCC undervoltage lockout (3.58V falling), and VIN undervoltage lockout (3.5V falling). All faults assert the open-drain FAULT# pin and corresponding IMON/TMON flags for immediate controller response.
Is the ISL99227FRZ-TR5798 pin-compatible with other ISL99227 variants?
Yes, the ISL99227FRZ-TR5798 shares identical 32-pin 5×5 PQFN packaging and pinout with all ISL99227 variants (e.g., ISL99227IRZ-T, ISL99227HRZ-T) and ISL99227B variants. The only functional difference is PWM input compatibility: ISL99227FRZ-TR5798 requires 3.3V tri-state logic, while ISL99227B variants require 5.0V.
ISL99227FRZ-TR5798 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-PowerWFQFN
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Half Bridge
- Applications:
- DC-DC Converters, Synchronous Buck Converter
- Interface:
- PWM
- Load Type:
- Inductive, Capacitive
- Technology:
- MOSFET (Metal Oxide)
- Rds On (Typ):
- 16Ohm
- Current - Output / Channel:
- 60A
- Current - Peak Output:
- -
- Voltage - Supply:
- 4.75V ~ 5.25V
- Voltage - Load:
- 4.5V ~ 18V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- Bootstrap Circuit, Status Flag
- Fault Protection:
- Current Limiting, Over Temperature, Shoot-Through, UVLO
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PQFN (5x5)
ISL99227FRZ-TR5798 FAQ
1.How can I place an order for ISL99227FRZ-TR5798 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL99227FRZ-TR5798 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-TR5798 reliable?
The price and inventory of ISL99227FRZ-TR5798 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL99227FRZ-TR5798 is usually 5 days.
3.What payment methods are accepted for ISL99227FRZ-TR5798?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL99227FRZ-TR5798 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL99227FRZ-TR5798?
ISL99227FRZ-TR5798 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL99227FRZ-TR5798 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-TR5798?
For technical support, including ISL99227FRZ-TR5798 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL99227FRZ-TR5798 requirements.
6.How does Aetrix verify that ISL99227FRZ-TR5798 is sourced from the original manufacturer or authorized distributors?
All ISL99227FRZ-TR5798 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-TR5798 meets industry standards.
7.What is the process for return or replacement of ISL99227FRZ-TR5798?
All ISL99227FRZ-TR5798 units undergo pre-shipment inspection (PSI). If there is an issue with ISL99227FRZ-TR5798, 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-TR5798 part is unused and in its original packaging.
Return procedure for ISL99227FRZ-TR5798:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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