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Renesas ISL99227HRZ-TS2568
- Part No.:
- ISL99227HRZ-TS2568
- Manufacturer:
- Renesas
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 32-PowerWFQFN
- Datasheet:
-
ISL99227HRZ-TS2568.pdf
- Description:
- ISL99227HRZ-TS2568
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ISL99227HRZ-TS2568 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 VR applications. It delivers 60A DC output, supports 4.5V–18V input, features ±3% current monitoring accuracy with REFIN input, 8mV/°C temperature sensing, and operates up to 2MHz switching frequency in server CPU core voltage regulation.
For engineers reviewing the ISL99227HRZ-TS2568 datasheet, ISL99227HRZ-TS2568 pinout, ISL99227HRZ-TS2568 application, or ISL99227HRZ-TS2568 equivalent, key selection criteria include its 3.3V tri-state PWM compatibility, integrated downslope current sensing, thermal flag reporting via TMON, and fault-handling behavior with open-drain FAULT# output tied to Renesas DMP controllers.
Technical Context
The ISL99227HRZ-TS2568 implements a synchronous buck power stage with integrated GH/GL drivers, bootstrap NFET, and dual-path sensing: IMON provides downslope-sampled LFET current referenced to REFIN, while TMON outputs a linear 0.6V + 8mV/°C analog voltage for junction temperature. Its tri-state PWM interface enables safe shutdown during abnormal conditions without external logic.
It integrates comprehensive protection including HFET overcurrent (90A trip), HFET short detection (SW >100mV during GL high), VCC/VIN UVLO, and over-temperature (140°C rising threshold). Faults are reported via dedicated open-drain FAULT# and analog flags on IMON/TMON, enabling coordinated response with ISL68xxx/69xxx controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 18V - supports standard 12V input rails with margin for transient spikes in server VRMs. |
| Continuous Output Current | 60A - rated for sustained load in high-density CPU/GPU core regulators without derating at +100°C TJ. |
| PWM Input Compatibility | 3.3V tri-state - interoperable with ISL68xxx/69xxx digital multiphase controllers; enters safe-off state when held in 1.3–1.8V shutdown window. |
| Current Monitor Accuracy | ±3% (≥10A, +40°C to +125°C) - eliminates need for external DCR sensing network and thermal compensation circuitry. |
| Temperature Sensing | 8mV/°C linear output (TMON), 140°C OT trip - enables real-time thermal margining and phase shedding in multi-SPS systems via wired-OR bus. |
| Package Thermal Resistance | θJA = 10.7°C/W (0 LFM), θJC = 4°C/W - double-cooling 5×5 PQFN enables compact layout with minimal heatsink dependency. |
| MOSFET rDS(ON) | HFET: 3.84mΩ, LFET: 0.76mΩ - optimized conduction loss balance for high-frequency operation with low duty-cycle core rails. |
Pinout & Package
ISL99227HRZ-TS2568 uses a RoHS-compliant 32-lead 5mm × 5mm PQFN package with double-sided cooling (exposed top and bottom thermal pads). The package features multiple GND and VIN pins for low-inductance power delivery and robust thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 LGCTRL | Lower gate control enable | Forces GL low (LFET off) when logic-low; otherwise obeys PWM - enables independent low-side disable for light-load efficiency control. |
| 2 VCC / 3 PVCC | +5V logic & gate drive bias | Separate supplies minimize noise coupling; each requires local 1µF X7R ceramic decoupling to GND. |
| 9–16 SW | Switch node | Eight parallel SW pins connect directly to output inductor - reduces current density and parasitic inductance in high-current paths. |
| 21–23, 27 VIN | Main power input | Six VIN pins accept 4.5–18V input; bottom paddle must be connected to system VIN plane via multiple vias for thermal and electrical integrity. |
| 26 FAULT# | Open-drain fault indicator | Pulled low on any fault (OCP, OT, UVLO, HFET short); used to disable controller EN pin or trigger system-level alert. |
| 28 PWM | 3.3V tri-state gate command | Accepts 3.3V logic; internal thresholds (1.11V fall / 2.13V rise) ensure noise immunity and deterministic tri-state entry/exit. |
| 30 REFIN / 31 IMON | Current monitor reference & output | REFIN sets IMON offset (0.8–1.6V range); IMON = REFIN + 1.2V during OCP - feeds controller's current sense ADC without external components. |
| 32 TMON | Temperature monitor output | Analog voltage = 0.6V + 8mV × TJ; multiple TMON pins can be wired-OR'd to report highest die temperature across phases. |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated LGCTRL pin | Enables independent low-side FET disable for discontinuous conduction mode (DCM) and light-load efficiency optimization. |
| Integrated bootstrap NFET | Replaces external bootstrap diode; reduces component count and improves reliability in high-frequency (>1MHz) operation. |
| Downslope current sensing | Measures LFET current during conduction, avoiding shoot-through distortion and enabling accurate DCR-less current reconstruction. |
| Tri-state PWM fault recovery | Controller acknowledges overcurrent by driving PWM into tri-state; SPS clears fault within 1µs and resumes normal operation. |
| Wired-OR TMON bus | Allows multiple ISL99227HRZ-TS2568 units to share one TMON line - simplifies thermal monitoring in N-phase VRMs without multiplexing. |
Applications
| Server CPU Core VRM | GPU Memory Regulator |
|---|---|
|
Use Scenario: High-current, fast-transient voltage regulation for dual-socket Xeon Scalable processors in cloud data centers. IC Role / Device Role / Timing Role: Smart Power Stage providing 60A per phase, synchronized via ISL69137 controller with adaptive phase shedding. Use Value: Eliminates DCR sensing network and associated thermal drift compensation, improving current reporting accuracy across -10°C to +100°C operating range. |
Use Scenario: Compact, high-efficiency 1.35V/50A regulator for HBM2E memory stacks in AI accelerators. IC Role / Device Role / Timing Role: Integrated power stage with 2MHz capability and downslope current sensing for tight loop bandwidth. Use Value: 0.76mΩ LFET rDS(ON) minimizes conduction loss at high duty cycles typical of memory rails, boosting full-load efficiency by ≥1.2% vs. discrete solutions. |
| Networking ASIC Supply | High-Density POL Converter |
|
Use Scenario: Multi-phase 0.8V/40A supply for 400G Ethernet switch ASICs requiring strict thermal management. IC Role / Device Role / Timing Role: Thermally enhanced SPS with TMON bus reporting peak die temperature across 4 phases to ISL68224 controller. Use Value: 8mV/°C TMON slope enables precise thermal margining; over-temperature hysteresis (15°C) prevents oscillation during thermal transients. |
Use Scenario: Space-constrained point-of-load converter on FPGA mezzanine cards with limited board area. IC Role / Device Role / Timing Role: Single-chip power stage replacing discrete MOSFETs, drivers, and sensing components in 5×5mm footprint. Use Value: 32-pin 5×5 PQFN reduces PCB area by 45% vs. equivalent discrete design while maintaining 60A rating and integrated fault reporting. |
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 temperature vs. ISL99227HRZ-TS2568's -10°C to +100°C. | Required for extended-temperature industrial or automotive under-hood applications where ambient exceeds +85°C. | Select ISL99227FRZ-T when full industrial temp range is mandatory; ISL99227HRZ-TS2568 is optimized for commercial-server thermal profiles. |
| ISL99227BFRZ-T | 5V PWM input (vs. 3.3V), identical 60A rating, same package and sensing features; not pin-compatible due to different PWM threshold voltages. | Used with ISL6617A phase doublers or legacy 5V PWM controllers; incompatible with ISL68xxx/69xxx digital controllers. | Choose ISL99227BFRZ-T only when paired with 5V-output controllers; ISL99227HRZ-TS2568 is the correct match for Renesas DMP families. |
Compared with ISL99227FRZ-T, ISL99227HRZ-TS2568 trades extended temperature range for lower cost and optimized thermal performance in server ambient conditions; compared with ISL99227BFRZ-T, it provides native 3.3V PWM compatibility essential for ISL68xxx/69xxx-based designs without level-shifting.
Availability
ISL99227HRZ-TS2568 is available at Aetrix Electronics and suitable for server CPU VRMs, GPU memory regulators, and high-density POL converters requiring stable component supply, long-term lifecycle support, and traceable sourcing for volume production.
Supply support for ISL99227HRZ-TS2568 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 delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and datacenter applications.
The ISL99227HRZ-TS2568 belongs to Renesas' Smart Power Stage family, designed specifically for high-efficiency, high-density multiphase DC/DC conversion in next-generation server and AI infrastructure.
FAQ
What is the operating temperature range for the ISL99227HRZ-TS2568?
The ISL99227HRZ-TS2568 is specified for an operating junction temperature range of -10°C to +100°C. This range aligns with commercial-server environments where ambient temperatures remain below +85°C and airflow ensures adequate cooling. Its thermal resistance (θJC = 4°C/W) enables reliable operation at full 60A load within this envelope when mounted on a properly designed PCB with double-sided cooling.
How does the ISL99227HRZ-TS2568 implement current monitoring without a sense resistor?
The ISL99227HRZ-TS2568 uses downslope current sensing on the low-side FET, sampling IL during GL high time. The IMON pin outputs a voltage referenced to REFIN (IMON = REFIN + k × IL), achieving ±3% accuracy across temperature. This eliminates external DCR networks and their thermal drift, reducing BOM count and improving long-term stability in the ISL99227HRZ-TS2568-based VRM.
Can the ISL99227HRZ-TS2568 be used with ISL6617A phase doublers?
No - the ISL99227HRZ-TS2568 has a 3.3V-compatible tri-state PWM input, while the ISL6617A outputs 5V PWM signals. Using them together would violate input threshold specifications and risk unreliable operation. For ISL6617A compatibility, the ISL99227BFRZ-T (5V PWM variant) must be selected instead of the ISL99227HRZ-TS2568.
What happens when an overcurrent fault occurs on the ISL99227HRZ-TS2568?
When HFET current exceeds 90A, the ISL99227HRZ-TS2568 forces GH low immediately, pulls IMON to REFIN + 1.2V, and asserts FAULT#. The fault clears ~1µs after the controller drives PWM into tri-state. If unacknowledged, IMON remains high and GH stays gated off - ensuring fail-safe behavior in the ISL99227HRZ-TS2568 until proper controller intervention.
Is the ISL99227HRZ-TS2568 pin-compatible with other members of the ISL99227 family?
Yes - all ISL99227 variants (IRZ, HRZ, FRZ) share identical 32-pin 5×5 PQFN packaging and pinout. Differences are limited to temperature rating, marking, and tape-and-reel configuration. This allows drop-in replacement across variants in the same PCB layout, provided thermal and operating condition requirements are met for the ISL99227HRZ-TS2568.
ISL99227HRZ-TS2568 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-TS2568 FAQ
1.How can I place an order for ISL99227HRZ-TS2568 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL99227HRZ-TS2568 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-TS2568 reliable?
The price and inventory of ISL99227HRZ-TS2568 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL99227HRZ-TS2568 is usually 5 days.
3.What payment methods are accepted for ISL99227HRZ-TS2568?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL99227HRZ-TS2568 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL99227HRZ-TS2568?
ISL99227HRZ-TS2568 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL99227HRZ-TS2568 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-TS2568?
For technical support, including ISL99227HRZ-TS2568 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL99227HRZ-TS2568 requirements.
6.How does Aetrix verify that ISL99227HRZ-TS2568 is sourced from the original manufacturer or authorized distributors?
All ISL99227HRZ-TS2568 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-TS2568 meets industry standards.
7.What is the process for return or replacement of ISL99227HRZ-TS2568?
All ISL99227HRZ-TS2568 units undergo pre-shipment inspection (PSI). If there is an issue with ISL99227HRZ-TS2568, 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-TS2568 part is unused and in its original packaging.
Return procedure for ISL99227HRZ-TS2568:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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