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Renesas ISL99227HRZ-TS2792
- Part No.:
- ISL99227HRZ-TS2792
- Manufacturer:
- Renesas
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 32-PowerWFQFN
- Datasheet:
-
ISL99227HRZ-TS2792.pdf
- Description:
- ISL99227HRZ-TS2792
- Quantity:
- Payment:
- Shipping:
Inventory:3,805
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Product details
Overview
ISL99227HRZ-TS2792 from Renesas Electronics is a Smart Power Stage (SPS) module integrating high-side and low-side MOSFETs, gate drivers, current/temperature monitors, and fault protection for multiphase buck DC/DC converters. It delivers 60A continuous DC output, supports 4.5V–18V input, features ±3% accurate downslope current sensing via IMON/REFIN, and operates with 3.3V tri-state PWM input - optimized for use with ISL68xxx/69xxx digital multiphase controllers in CPU/GPU core VRMs.
For engineers reviewing the ISL99227HRZ-TS2792 datasheet, ISL99227HRZ-TS2792 pinout, ISL99227HRZ-TS2792 application, or ISL99227HRZ-TS2792 equivalent, this page provides verified package mapping (32-lead 5×5 PQFN), validated thermal/current monitoring behavior, confirmed fault reporting logic (open-drain FAULT#, TMON, IMON), and real-world design constraints including boot capacitor sizing, SW node layout, and tri-state PWM shutdown timing.
Technical Context
The ISL99227HRZ-TS2792 implements a synchronous buck power stage with integrated 3.84mΩ high-side and 0.76mΩ low-side MOSFETs, driven by independent GH/GL logic with shoot-through protection and 8–40ns propagation delays. Its tri-state PWM interface (3.3V compatible, 33.5kΩ sink / 16.5kΩ source impedance) enables safe gate shutdown during controller faults or startup sequencing.
Current sensing uses downslope sampling of LFET current with 160ns blanking time, delivering IMON = REFIN + 1.2V on overcurrent (90A typical trip). Temperature monitoring provides 8mV/°C linear output (0.6V + 8mV·TJ) with over-temperature flag at +140°C and 15°C hysteresis, while fault reporting combines open-drain FAULT# with dedicated IMON/TMON flags for multiphase coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Current Rating | 60A - maximum sustained DC load current without thermal shutdown under recommended PCB cooling (θJA = 10.7°C/W). |
| Input Voltage Range | +4.5V to +18V - supports standard server/motherboard rail voltages including 5V, 12V, and 19V inputs. |
| Current Monitor Accuracy | ±3% (≥10A, TJ = +40°C to +125°C) - enables precise phase current balancing in multiphase VRMs without external DCR network. |
| Temperature Sensing | 8mV/°C linear output (0.6V + 8mV·TJ) - allows direct analog readback of junction temperature; TMON bus-wireable across phases. |
| Overcurrent Trip Threshold | 90A (typical) - hardware-level HFET overcurrent detection with immediate GH disable and IMON pull-up to REFIN + 1.2V. |
| Thermal Protection Threshold | +140°C rising, +125°C falling - latched OT fault pulls TMON to 2.5V and FAULT# low until junction cools below hysteresis point. |
| Switching Frequency Support | Up to 2MHz - validated operation with 500kHz–800kHz in efficiency curves; requires <0.22µF BOOT capacitor. |
| Package | 32-lead 5×5 mm PQFN Double Cooling - exposes top and bottom thermal pads; θJC = 4°C/W, θJB = 5.2°C/W. |
Pinout & Package
ISL99227HRZ-TS2792 is housed in a thermally enhanced 32-lead 5×5 mm PQFN package with double-sided cooling (exposed top and bottom thermal pads). The package supports high-current routing via multiple VIN, SW, and GND pins, and integrates internal bootstrap NFET for simplified gate drive.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 LGCTRL | Lower gate control input | Forces GL low (LFET off) when logic low; otherwise obeys PWM; must not float - ties to system logic or pull-high if unused. |
| 2 VCC | +5V logic bias supply | Powers internal logic and POR circuitry; requires 1µF X7R ceramic decoupling close to pin. |
| 3 PVCC | +5V gate drive bias supply | Supplies GH/GL drivers; requires separate 1µF X7R decoupling; shares voltage rail with VCC but routed independently. |
| 9–16, 21–23, 27 SW | Switch node | High-current connection between HFET source and LFET drain; directly bonds to output inductor; 8 parallel pins reduce resistance/inductance. |
| 24 PHASE | Bootstrap return | Internally tied to SW; no external routing needed - simplifies BOOT capacitor placement across BOOT–PHASE. |
| 25 BOOT | Floating bootstrap supply | Drives HFET gate; requires 0.1–0.22µF X7R ceramic capacitor to PHASE; internal NFET replaces discrete bootstrap diode. |
| 26 FAULT# | Open-drain fault reporting | Pulled low on any fault (OCP, OT, HFET short, VCC/VIN UVLO); used to disable controller EN or trigger system alert. |
| 28 PWM | 3.3V tri-state PWM input | Accepts 3.3V logic with defined tri-state window (1.3–1.8V); forces both FETs off when held in window >40ns; compatible with ISL68xxx/69xxx controllers. |
| 30 REFIN | Current monitor reference input | 0.8–1.6V external reference; sets IMON offset; connects to controller's current sense input; requires 0.1µF local decoupling. |
| 31 IMON | Current monitor output | IMON = REFIN + (IL × gain); pulled to REFIN + 1.2V on OCP; max 56pF capacitance to REFIN; series 100Ω + 470pF recommended. |
| 32 TMON | Temperature monitor output | 0.6V + 8mV/°C analog output; bus-wireable across phases; pulled to 2.5V on OT; max 470pF to GND; series resistor enables higher capacitive loads. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MOSFET pair | 3.84mΩ HS + 0.76mΩ LS FETs enable high-efficiency operation at 60A with minimal conduction loss and thermal rise. |
| Downslope current sensing | Eliminates need for external DCR network or sense resistors - reduces BOM count, layout area, and thermal compensation complexity. |
| Dedicated LFET control (LGCTRL) | Allows forced LFET turn-off independent of PWM - supports light-load efficiency modes and safe startup/shutdown sequencing. |
| Comprehensive fault protection | Hardware-level detection of HFET overcurrent (90A), HFET short (SW >100mV during GL high), over-temperature (+140°C), and VCC/VIN UVLO. |
| Tri-state PWM interface | 3.3V-compatible input with programmable shutdown window ensures robust communication with digital controllers during fault conditions. |
| Internal bootstrap NFET | Replaces discrete bootstrap diode - reduces component count, improves reliability, and enables compact 0.1–0.22µF BOOT capacitor selection. |
Applications
| Core VRM for High-Performance CPUs | GPU/Graphics Regulator Module |
|---|---|
|
Use Scenario: Powers Intel/AMD CPU cores requiring tightly regulated 0.8–1.5V at up to 240A per rail using 4–6 parallel ISL99227HRZ-TS2792 phases. IC Role / Device Role / Timing Role: Smart Power Stage providing synchronized switching, real-time current/temperature feedback, and fault signaling to ISL69137 or similar DMP controller. Use Value: Enables dynamic phase shedding and current balancing via ±3% IMON accuracy and bus-wireable TMON, improving transient response and thermal margin. |
Use Scenario: Supplies NVIDIA/AMD GPU cores and memory interfaces in gaming PCs and AI accelerators with fast load-step demands (50A/µs). IC Role / Device Role / Timing Role: High-density buck stage delivering 60A per phase with 2MHz switching capability and sub-1µs fault response time. Use Value: Achieves >95% peak efficiency at 1.2V/60A (VIN=12V) while maintaining <10°C phase-to-phase temp delta via integrated thermal monitoring. |
| Server & Cloud Computing POL Converter | High-Density VR for Networking Equipment |
|
Use Scenario: Powers ASICs, FPGAs, and DDR5 memory subsystems in 1U rack servers where board space and thermal density are constrained. IC Role / Device Role / Timing Role: Compact 5×5 mm SPS module replacing discrete driver+FET solutions; supports daisy-chained TMON for rack-level thermal telemetry. Use Value: Reduces total solution size by 40% vs. discrete alternatives while enabling predictive maintenance through accurate junction temperature tracking. |
Use Scenario: Delivers 1.8V/60A to switch fabric ASICs and SerDes lanes in 400G/800G optical line cards with strict EMI and efficiency requirements. IC Role / Device Role / Timing Role: Multiphase power stage with shoot-through protected gate drivers and 8–40ns propagation delay matching for precise timing alignment. Use Value: Supports 700–800kHz switching with <14W total losses at full load, minimizing heat sink requirements in air-cooled telecom chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Smart Power Stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL99227FRZ-T | Same 60A rating and 3.3V PWM, but rated for -40°C to +125°C junction range (vs. ISL99227HRZ-T's -10°C to +100°C). | Suitable for extended-temperature industrial or automotive under-hood environments where ambient exceeds +85°C. | Select ISL99227FRZ-T when operating junction temperature may exceed +100°C; otherwise ISL99227HRZ-T offers cost-optimized thermal margin for commercial server applications. |
| ISL99227BFRZ-T | 60A SPS with 5.0V PWM input (16.5kΩ sink/source), incompatible with ISL99227HRZ-T's 3.3V interface; supports ISL6617A phase doubler. | Used in hybrid controller architectures pairing analog/digital controllers with phase doublers instead of full digital multiphase controllers. | Choose ISL99227BFRZ-T only when paired with 5V PWM sources like ISL6617A; electrical incompatibility prevents direct substitution in ISL68xxx-based designs. |
Compared with ISL99227FRZ-T, ISL99227HRZ-T trades extended temperature range for lower cost and optimized thermal performance in commercial datacenter environments; compared with ISL99227BFRZ-T, it requires 3.3V PWM logic and cannot interoperate with 5V PWM controllers without level-shifting.
Availability
ISL99227HRZ-TS2792 is available at Aetrix Electronics and suitable for high-density VRM, GPU power delivery, and server POL applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for volume production.
Supply support for ISL99227HRZ-TS2792 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 interface solutions for automotive, industrial, and datacenter markets.
The ISL99227HRZ-TS2792 belongs to Renesas' Smart Power Stage family, designed specifically to simplify high-efficiency, high-current multiphase DC/DC conversion for CPU, GPU, and ASIC core voltage regulation in next-generation computing platforms.
FAQ
What is the maximum continuous current rating of the ISL99227HRZ-TS2792?
The ISL99227HRZ-TS2792 is rated for 60A continuous DC current under recommended thermal conditions (θJA = 10.7°C/W, 400 LFM airflow). This rating assumes proper PCB layout with ≥6 vias per GND pad, 10µF+ VIN decoupling, and thermal pad soldering to internal ground planes. Peak instantaneous current capability reaches 150A for short durations, but sustained operation above 60A risks thermal shutdown.
Does the ISL99227HRZ-TS2792 support 5V PWM input signals?
No, the ISL99227HRZ-TS2792 supports only 3.3V-compatible tri-state PWM input with defined sink/source impedances (33.5kΩ/16.5kΩ) and shutdown window (1.3–1.8V). Applying 5V to the PWM pin exceeds absolute maximum ratings and may damage the input circuit. For 5V PWM systems, use ISL99227B variants such as ISL99227BFRZ-T, which are electrically distinct and not pin-compatible.
How does the ISL99227HRZ-TS2792 implement current monitoring without a sense resistor?
The ISL99227HRZ-TS2792 uses downslope current sensing on the low-side FET, measuring IL during the GL-on period after PWM fall. It outputs IMON = REFIN + (IL × gain) with ±3% accuracy across temperature, eliminating external DCR networks. The IMON signal connects directly to the controller's current sense input, and REFIN (0.8–1.6V) sets the baseline reference voltage for the analog current representation.
What fault conditions trigger the open-drain FAULT# pin on the ISL99227HRZ-TS2792?
The FAULT# pin is pulled low on any of the following: high-side FET overcurrent (90A trip), high-side FET short (SW >100mV during GL high), over-temperature (+140°C), VCC undervoltage lockout (<3.58V), or VIN undervoltage lockout (<3.5V). All faults are reported simultaneously on FAULT#; individual fault sources are differentiated via IMON (OCP/short) and TMON (OT) pins for controller-level diagnostics.
Can multiple ISL99227HRZ-TS2792 devices share a common TMON bus?
Yes, the TMON outputs of multiple ISL99227HRZ-TS2792 devices can be wired together as a single analog bus. The internal circuitry ensures the highest voltage (representing the hottest device) dominates the bus - enabling system-level thermal monitoring without additional multiplexing. Total capacitance to GND must remain ≤470pF; adding a series resistor allows higher capacitive loads, such as 1kΩ + 100nF.
ISL99227HRZ-TS2792 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:
- -10°C ~ 100°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)
ISL99227HRZ-TS2792 FAQ
1.How can I place an order for ISL99227HRZ-TS2792 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL99227HRZ-TS2792 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 ISL99227HRZ-TS2792 reliable?
The price and inventory of ISL99227HRZ-TS2792 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL99227HRZ-TS2792 is usually 5 days.
3.What payment methods are accepted for ISL99227HRZ-TS2792?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL99227HRZ-TS2792 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL99227HRZ-TS2792?
ISL99227HRZ-TS2792 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL99227HRZ-TS2792 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 ISL99227HRZ-TS2792?
For technical support, including ISL99227HRZ-TS2792 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL99227HRZ-TS2792 requirements.
6.How does Aetrix verify that ISL99227HRZ-TS2792 is sourced from the original manufacturer or authorized distributors?
All ISL99227HRZ-TS2792 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 ISL99227HRZ-TS2792 meets industry standards.
7.What is the process for return or replacement of ISL99227HRZ-TS2792?
All ISL99227HRZ-TS2792 units undergo pre-shipment inspection (PSI). If there is an issue with ISL99227HRZ-TS2792, 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 ISL99227HRZ-TS2792 part is unused and in its original packaging.
Return procedure for ISL99227HRZ-TS2792:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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