My Inquiry
My Account
Renesas ISL99390HRZ-TR5935
- Part No.:
- ISL99390HRZ-TR5935
- Manufacturer:
- Renesas
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 39-PowerWFQFN
- Datasheet:
-
ISL99390HRZ-TR5935.pdf
- Description:
- SMART POWER STAGE GEN2 (SPS) MOD
- Quantity:
- Payment:
- Shipping:
Inventory:4,954
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL99390HRZ-TR5935 from Renesas Electronics is a 90A Smart Power Stage (SPS) module with integrated high-accuracy current and temperature monitors, designed for use with ISL68/69xxx digital multiphase controllers. It supports 3.3V tri-state PWM input, delivers ±3% continuous current sense accuracy over line/load/temperature, operates up to 1.25MHz, and features comprehensive fault protection including SROCP, OTP, and UVLO - deployed in GPU and CPU core VR applications.
For engineers reviewing the ISL99390HRZ-TR5935 datasheet, ISL99390HRZ-TR5935 pinout, ISL99390HRZ-TR5935 application, or ISL99390HRZ-TR5935 equivalent, key selection criteria include tri-state PWM compatibility, integrated current/temperature monitoring accuracy, fault reporting outputs (TOUT/FLT), enable control, and thermal performance in 5×6 QFN packaging for high-density VRMs.
Technical Context
The ISL99390HRZ-TR5935 integrates high- and low-side MOSFETs, gate drivers, current sensing, and temperature monitoring in a single thermally enhanced QFN package. Its tri-state PWM interface enables seamless coordination with Renesas DMP controllers during phase shedding or fault conditions.
It eliminates external DCR sensing networks and thermal compensation components by delivering calibrated analog current output (±3% accuracy) and linear 8mV/°C temperature output (TOUT), while supporting VIN from 3.0V to 16V and DC load current up to 90A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | +3.0V to +16V - supports wide-input industrial and server VR rails including 5V, 12V, and hybrid bus architectures. |
| Continuous Current | 90A - rated DC output current capability without derating under specified thermal conditions. |
| Current Sense Accuracy | ±3% - enables precise system-level power management and accurate loadline compliance in closed-loop VR designs. |
| Temperature Monitor | 8mV/°C TOUT output - provides linear, factory-calibrated analog voltage proportional to die temperature for real-time thermal margining. |
| PWM Input Logic | 3.3V-compatible tri-state - ensures robust communication with ISL68/69xxx controllers during phase disable, fault latch, or sleep mode transitions. |
| Switching Frequency | Up to 1.25MHz - allows compact magnetics and fast transient response in high-performance POL converters. |
| Fault Protection | HFET overcurrent, shorted HFET, SROCP, OTP, VCC UVLO - reduces need for external supervision ICs and improves system-level reliability. |
Pinout & Package
Package: 32-pin, 5mm × 6mm, 0.5mm pitch QFN with exposed thermal pad (RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-side power input | Primary input rail connection (3–16V); ties directly to bulk capacitor and high-side FET source. |
| BOOT | Bootstrap supply | Provides gate drive voltage for high-side FET; requires external bootstrap capacitor between BOOT and SW. |
| SW | Switch node | Connection point between high- and low-side FETs; interfaces to output inductor and provides switching waveform for feedback and sensing. |
| PHASE | Phase current sense output | Analog current monitor output (±3% accuracy); used for real-time current telemetry and loop compensation. |
| TOUT/FLT | Temp output / Fault indicator | Open-drain FLT signal asserts low on fault; TOUT pin outputs 8mV/°C analog voltage when FLT is inactive. |
| EN | Enable input | Active-high logic input controlling internal bias and gate driver operation; enables low-power mode when deasserted. |
| PWM | Tri-state PWM input | 3.3V-compatible digital input accepting PWM signals and high-impedance state for phase shedding or controller fault recovery. |
| GND | Power and signal ground | Common reference for all analog/digital functions; must be connected to low-impedance PCB ground plane with thermal pad soldered. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current monitor | ±3% accuracy across line, load, and temperature - replaces discrete DCR+RC networks and removes thermal drift compensation circuitry. |
| Dual-function TOUT/FLT pin | Single pin provides both linear temperature telemetry (8mV/°C) and open-drain fault signaling - reduces pin count and simplifies system monitoring. |
| Smart Reverse Overcurrent Protection (SROCP) | Detects reverse current flow during light-load or CCM-to-DCM transitions - prevents inductor saturation and improves efficiency in dynamic load scenarios. |
| Thermally enhanced 5×6 QFN | Exposed thermal pad and optimized internal layout achieve <1.5°C/W θJA - enables 90A operation in high-density server VR layouts without forced airflow. |
| Low-power mode support | EN-controlled standby state reduces quiescent current to <100µA - extends hold-up time and supports deep-sleep states in AI accelerators. |
Applications
| GPU Core Voltage Regulation | AI Accelerator POL Supply |
|---|---|
Use Scenario: High-current, fast-transient power delivery to NVIDIA H100 or AMD MI300X GPU cores under variable compute loads. IC Role / Device Role / Timing Role: Smart Power Stage providing synchronized switching, real-time current telemetry, and autonomous fault shutdown. Use Value: Enables sub-50ns transient response and precise loadline tracking via ±3% current sensing - critical for maintaining GPU frequency stability during burst workloads. | Use Scenario: Point-of-load regulation for tensor processing units (TPUs) in datacenter AI training racks with strict thermal envelope limits. IC Role / Device Role / Timing Role: Integrated power stage with embedded temperature monitoring and SROCP for safe operation during rapid power ramp-up/down cycles. Use Value: Eliminates need for external thermal sensors and reverse-current protection circuits - reduces BOM count and improves thermal margining accuracy via 8mV/°C TOUT. |
| CPU Memory VR (DDR5/VDDQ) | Cloud Server Core VR |
Use Scenario: Dual-rail DDR5 memory subsystem supplying VDDQ (1.25V) and VPP (1.8V) with tight voltage tolerance and high current slew rates. IC Role / Device Role / Timing Role: High-bandwidth power stage supporting >1MHz switching and phase-interleaved control for ripple cancellation. Use Value: Delivers 90A per phase with minimal layout parasitics due to integrated sensing - maintains <±10mV regulation window under 50A/µs load steps. | Use Scenario: Multi-phase core VR for dual-socket Xeon Scalable processors in hyperscale cloud servers requiring long-term reliability and lifecycle continuity. IC Role / Device Role / Timing Role: Digitally controlled SPS with fault reporting (FLT) and enable (EN) for firmware-managed power sequencing and graceful shutdown. Use Value: Reduces VR design cycle time by removing DCR network tuning and enabling direct integration with Renesas ISL69269 controllers - validated for 10-year production programs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL99390BR5935 | 5V-compatible tri-state PWM input vs. 3.3V in ISL99390HRZ-TR5935; otherwise identical current/temp sensing, protection, and package. | Targeted for legacy 5V-controller platforms (e.g., older ISL65xx series); not compatible with 3.3V-only ISL68xxx systems. | Select ISL99390BR5935 only when paired with 5V PWM controllers; ISL99390HRZ-TR5935 is required for ISL68228/69269-based designs. |
| MP87653GQH-P | Monolithic 80A SPS with 4.5–16V input, ±5% current sense accuracy, no integrated TOUT, and different fault flag behavior (active-high FLT). | Lacks temperature telemetry and SROCP; suited for cost-sensitive, non-telemetry POLs where thermal margining is handled externally. | Choose MP87653GQH-P only if ±5% current accuracy and absence of TOUT are acceptable; ISL99390HRZ-TR5935 remains preferred for precision VRMs with thermal-aware control loops. |
Compared with ISL99390BR5935 and MP87653GQH-P, the ISL99390HRZ-TR5935 uniquely combines 3.3V tri-state PWM compatibility, ±3% current sensing, and 8mV/°C TOUT in a single 5×6 QFN - making it the only option for high-fidelity, thermally aware, digitally controlled VRMs targeting next-gen AI and server CPUs.
Availability
ISL99390HRZ-TR5935 is available at Aetrix Electronics and suitable for GPU core VRs, AI accelerator POL supplies, and cloud server CPU VRs requiring stable component supply, long-lifecycle support, and traceable sourcing for volume production.
Supply support for ISL99390HRZ-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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and datacenter applications.
The ISL99390HRZ-TR5935 belongs to Renesas' Smart Power Stage family, engineered specifically for digitally controlled, high-current VRMs in AI accelerators, GPUs, and enterprise servers - emphasizing accuracy, thermal intelligence, and controller interoperability.
FAQ
What is the PWM input voltage compatibility of the ISL99390HRZ-TR5935?
The ISL99390HRZ-TR5935 features a 3.3V-compatible tri-state PWM input, designed to interface directly with Renesas ISL68/69xxx digital multiphase controllers. This ensures reliable signal integrity and phase coordination during normal operation, phase shedding, and fault recovery sequences. The ISL99390HRZ-TR5935 does not support 5V PWM logic levels - using it with 5V controllers may cause undefined behavior or damage.
How accurate is the current sensing function in the ISL99390HRZ-TR5935?
The ISL99390HRZ-TR5935 provides ±3% continuous current sense accuracy across line, load, and temperature ranges - verified per Renesas characterization data. This high fidelity eliminates the need for external DCR sensing networks and associated thermal compensation components. The ISL99390HRZ-TR5935's PHASE pin delivers this calibrated analog output directly to the controller for real-time current telemetry and closed-loop regulation.
Does the ISL99390HRZ-TR5935 integrate temperature monitoring, and how is it implemented?
Yes, the ISL99390HRZ-TR5935 integrates a linear temperature monitor with 8mV/°C output (TOUT), factory-calibrated and referenced to GND. When the FLT signal is inactive, TOUT provides an analog voltage proportional to junction temperature - enabling precise thermal margining without external sensors. The ISL99390HRZ-TR5935 shares this functionality on the TOUT/FLT pin, which switches to open-drain fault reporting when protection triggers.
What fault protections are built into the ISL99390HRZ-TR5935?
The ISL99390HRZ-TR5935 includes five integrated fault protections: high-side FET overcurrent, high-side FET short-circuit detection, Smart Reverse Overcurrent Protection (SROCP), over-temperature protection (OTP), and VCC undervoltage lockout (UVLO). These operate autonomously and assert the FLT signal to notify the controller. The ISL99390HRZ-TR5935's SROCP specifically detects reverse current during light-load transitions - a feature absent in most competing SPS modules.
What package type and thermal characteristics does the ISL99390HRZ-TR5935 use?
The ISL99390HRZ-TR5935 uses a 32-pin, 5mm × 6mm, 0.5mm pitch QFN package with an exposed thermal pad. Its thermally enhanced construction achieves low junction-to-ambient thermal resistance (<1.5°C/W θJA under standard 2-layer board conditions), enabling 90A continuous operation in high-density server and AI accelerator VR layouts. The ISL99390HRZ-TR5935 requires proper PCB thermal vias under the exposed pad for optimal performance.
ISL99390HRZ-TR5935 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 39-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Half Bridge
- Applications:
- DC-DC Converters
- Interface:
- -
- Load Type:
- Inductive
- Technology:
- NMOS
- Rds On (Typ):
- -
- Current - Output / Channel:
- 90A
- Current - Peak Output:
- -
- Voltage - Supply:
- 3V ~ 16V
- Voltage - Load:
- 3V ~ 16V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Features:
- Bootstrap Circuit
- Fault Protection:
- Current Limiting, Over Temperature, Shoot-Through, Short Circuit, UVLO
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 39-QFN (5x6)
ISL99390HRZ-TR5935 FAQ
1.How can I place an order for ISL99390HRZ-TR5935 through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL99390HRZ-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 ISL99390HRZ-TR5935 reliable?
The price and inventory of ISL99390HRZ-TR5935 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL99390HRZ-TR5935 is usually 5 days.
3.What payment methods are accepted for ISL99390HRZ-TR5935?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL99390HRZ-TR5935 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL99390HRZ-TR5935?
ISL99390HRZ-TR5935 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL99390HRZ-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 ISL99390HRZ-TR5935?
For technical support, including ISL99390HRZ-TR5935 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL99390HRZ-TR5935 requirements.
6.How does Aetrix verify that ISL99390HRZ-TR5935 is sourced from the original manufacturer or authorized distributors?
All ISL99390HRZ-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 ISL99390HRZ-TR5935 meets industry standards.
7.What is the process for return or replacement of ISL99390HRZ-TR5935?
All ISL99390HRZ-TR5935 units undergo pre-shipment inspection (PSI). If there is an issue with ISL99390HRZ-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 ISL99390HRZ-TR5935 part is unused and in its original packaging.
Return procedure for ISL99390HRZ-TR5935:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL99390HRZ-TR5935 Tags
-
NCP1393BDR2G
onsemi
-
A3909GLNTR-T
Allegro MicroSystems
-
NCP51530BDR2G
onsemi
-
A3909GLYTR-T
Allegro MicroSystems
-
SIC631CD-T1-GE3
Vishay Siliconix
-
BTN70301EPAXUMA1
Infineon Technologies
-
TDA21520AUMA1
Infineon Technologies
-
AOZ5116QI
Alpha & Omega Semiconductor Inc.
-
IRSM005-301MHTR
Infineon Technologies
-
IRSM005-301MH
Infineon Technologies
-
MP6610GJ-Z
Monolithic Power Systems Inc.
-
DRV8908QPWPRQ1
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
