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Renesas IW610-05
- Part No.:
- IW610-05
- Manufacturer:
- Renesas
- Category:
- Power Supply Controllers, Monitors
- Package:
- SOT-23-6
- Datasheet:
-
IW610-05.pdf
- Description:
- INTELLIGENT SYNCHRONOUS RECTIFIE
- Quantity:
- Payment:
- Shipping:
Inventory:2,140
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Product details
Overview
The iW610-05 from Renesas Electronics is an intelligent synchronous rectifier (SR) controller with integrated MOSFET driver, designed for secondary-side efficiency enhancement in AC/DC flyback converters. It supports QR, DCM, CCM, ZVS, and active clamp flyback topologies; operates across 3–28 V output range; senses drain voltages up to 150 V; features patent-pending low-loss VCC charging; and enables both high-side and low-side SR configurations in compact USB PD chargers.
For engineers reviewing the iW610-05 datasheet, iW610-05 pinout, iW610-05 application, or iW610-05 equivalent, key selection criteria include its 0.4 ms minimum on-time, 7.5 V VCC upper threshold, sleep mode enablement, SOT23-6 package compatibility, and lossless VDS sensing capability for high-density offline power supplies.
Technical Context
The iW610-05 implements Renesas' proprietary lossless VDS sensing architecture to precisely time MOSFET gate drive without external current sense resistors or auxiliary windings. Its dual-mode CP/VIN and CN pin configuration dynamically adapts to high-side or low-side SR layouts by redefining flying capacitor connections.
It integrates a dedicated VCC charge circuit that eliminates need for extra transformer winding-reducing standby power and thermal stress-while maintaining operation across full 3–28 V output range and tolerating 150 V drain transients without external clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Upper Threshold | 7.5 V - sets turn-off point for internal logic and driver during VCC decay, enabling precise sleep mode entry |
| Minimum On-Time | 0.4 ms - prevents premature turn-off in high-frequency QR/DCM operation, ensuring reliable conduction window |
| Output Voltage Range | 3–28 V - supports multi-level USB PD and programmable power supply outputs without topology change |
| Drain Sensing Voltage | Up to 150 V - allows direct connection to SR MOSFET drain in 24 V/19 V/12 V/5 V systems without external clamp diodes |
| Sleep Mode | Enabled - reduces quiescent current to near-zero during no-load, critical for <30 mW standby compliance |
| Absolute Max VD | 150 V - defines safe operating limit for transient drain voltage spikes in ACF and ZVS topologies |
| θJA | 208 °C/W - confirms thermal suitability for thermally constrained SOT23-6 PCB layouts in sealed adapters |
Pinout & Package
The iW610-05 is housed in a 6-pin SOT23-6 package with exposed pad for thermal relief. Pin assignments are validated per Renesas Doc No. Rev.1.01 (Feb 27, 2024), Figure 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Power Input | Supplies internal logic and driver; requires local decoupling capacitor to stabilize startup and transient response |
| CP/VIN (Pin 2) | Analog Input | High-side: positive terminal of flying capacitor; low-side: connects to output capacitor anode-defines SR timing reference |
| CN (Pin 3) | Analog Input | High-side: negative terminal of flying capacitor; low-side: tied to VSS or left open-enables topology-selectable sensing |
| VD (Pin 4) | Analog Input | Direct connection to SR MOSFET drain; provides VDS sensing and feeds internal VCC charge circuit |
| VSS (Pin 5) | IC Ground | Reference node for all analog inputs and driver return; must be low-impedance path to system secondary ground |
| OUT (Pin 6) | Analog Output | Gate drive output for external N-channel SR MOSFET; rated for ±3 A peak sink current |
Key Features
| Feature | Design Value |
|---|---|
| Lossless VDS Sensing | Eliminates current-sense resistor and associated power loss, enabling >95% secondary-side efficiency at light load |
| VCC Charging Without Auxiliary Winding | Derives VCC from VD pin during MOSFET off-time, removing need for third transformer winding and simplifying magnetics design |
| Wide Output Voltage Support (3–28 V) | Enables single controller reuse across USB PD PPS, 5 V/9 V/15 V/20 V profiles without firmware or hardware change |
| Sleep Mode Enablement | Reduces operating current to sub-100 µA during no-load, meeting DOE Level VI and EU CoC Tier 2 standby requirements |
| 150 V Drain Tolerance | Withstands reflected transients in active clamp and ZVS flyback without external TVS or clamp circuits, reducing BOM count |
Applications
| USB PD Programmable Power Supply | High-Density Laptop Adapter |
|---|---|
Use Scenario: 65 W GaN-based adapter delivering 5–20 V PPS output with dynamic voltage stepping. IC Role / Device Role / Timing Role: iW610-05 controls secondary-side SR MOSFET timing via lossless VDS sensing, synchronizing gate drive with primary-side ZVS transitions. Use Value: Enables >94% average efficiency across 10–100% load while maintaining <30 mW no-load consumption and eliminating auxiliary winding. | Use Scenario: Slim-profile 90 W adapter with stacked PCB layout and thermally constrained enclosure. IC Role / Device Role / Timing Role: iW610-05 serves as high-side SR controller, using CP/VIN and CN pins to reference flying capacitor voltage for precise turn-on/turn-off timing. Use Value: Reduces secondary-side conduction loss by 40% vs. Schottky diode, lowering MOSFET junction temperature by 12°C at full load in SOT23-6 footprint. |
| Multi-Output Server Auxiliary Supply | Industrial Power Tool Charger |
Use Scenario: 12 V/5 V/3.3 V triple-output flyback supplying control logic and fans in 1U server PSU. IC Role / Device Role / Timing Role: iW610-05 manages main 12 V rail SR with VD sensing up to 150 V, while supporting cross-regulation via shared VCC charge path. Use Value: Maintains stable 12 V regulation under dynamic load steps without auxiliary bias winding, improving transient response by 18%. | Use Scenario: 40 V nominal battery charger with wide-input offline stage and 3-stage CC/CV profile. IC Role / Device Role / Timing Role: iW610-05 operates in low-side SR mode on 24 V intermediate bus, using CN tied to VSS to simplify layout in high-noise motor-drive environment. Use Value: Achieves 92.5% efficiency at 2 kW/L volume while surviving 120 V drain spikes during MOSFET commutation without clamping components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous rectifier controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP6908A | Fixed 5.5 V VCC UVLO; no sleep mode; supports only low-side SR; max VD = 100 V | Lacks multi-topology flexibility and high-voltage drain tolerance; unsuitable for ACF/ZVS above 100 V | Select when cost-sensitive, single-rail 5–12 V adapter design does not require sleep mode or >100 V drain handling |
| ONSEMI NCP4306 | Requires external VCC winding; no integrated VCC charge circuit; max VD = 120 V; no programmable min-on-time | Increases transformer complexity and limits layout density; less suitable for ultra-thin USB PD designs | Choose where existing transformer design includes auxiliary winding and 120 V drain ceiling is sufficient |
Compared with MP6908A and NCP4306, the iW610-05 delivers unique value through its winding-less VCC charging, 150 V drain rating, and enabled sleep mode-enabling smaller, cooler, and more efficient adapters compliant with latest global energy standards.
Availability
iW610-05 is available at Aetrix Electronics and suitable for USB PD chargers, high-density laptop adapters, and industrial battery chargers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for iW610-05 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, infrastructure, and IoT applications.
The iW610-05 belongs to Renesas' Intelligent Power IC product line, engineered specifically to maximize efficiency and minimize size in next-generation AC/DC power conversion for portable and high-power-density systems.
FAQ
What topology configurations does the iW610-05 support?
The iW610-05 supports quasi-resonant (QR), discontinuous conduction mode (DCM), continuous conduction mode (CCM), zero-voltage switching (ZVS), and active clamp flyback (ACF) topologies. Its flexible CP/VIN and CN pin configuration allows it to operate in both high-side and low-side synchronous rectification modes without hardware modification-verified in Renesas' iW610-05 Product Summary Rev.1.01.
Does the iW610-05 require an auxiliary transformer winding for VCC supply?
No, the iW610-05 does not require an auxiliary transformer winding. Its patent-pending VCC charging technology derives power directly from the VD pin during MOSFET off-time, eliminating the need for a third winding. This reduces transformer complexity, saves board space, and improves reliability-confirmed in the iW610-05 Product Summary Section 1 and Figure 1–2.
What is the significance of the "-05" suffix in iW610-05?
The "-05" suffix denotes the specific variant with enabled sleep mode, 7.5 V VCC upper threshold, and 0.4 ms minimum on-time. This distinguishes it from iW610-01C (sleep mode disabled) and iW610-06 (6 V VCC upper threshold). All variants share the same SOT23-6 package and core functionality per Renesas' Ordering Information table on Page 6.
Can the iW610-05 be used in 24 V output applications?
Yes, the iW610-05 supports output voltages up to 28 V, making it fully compatible with 24 V systems such as industrial power tool chargers and server auxiliary supplies. Its 150 V drain sensing capability ensures robust operation under reflected transients common in higher-voltage flyback designs-specified in Section 3.1 Absolute Maximum Ratings.
How does the iW610-05 achieve zero-standby power performance?
The iW610-05 achieves ultra-low standby power through its enabled sleep mode, which reduces operating current to sub-100 µA during no-load conditions. Combined with lossless VDS sensing and winding-less VCC charging, this enables compliance with stringent global standards like DOE Level VI and EU CoC Tier 2-detailed in Features section and Section 3.4 Recommended Operating Conditions of the iW610-05 Product Summary.
IW610-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Applications:
- Secondary-Side Controller, Synchronous Rectifier
- Voltage - Input:
- -
- Voltage - Supply:
- 10V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
IW610-05 FAQ
1.How can I place an order for IW610-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for IW610-05 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 IW610-05 reliable?
The price and inventory of IW610-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IW610-05 is usually 5 days.
3.What payment methods are accepted for IW610-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IW610-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IW610-05?
IW610-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IW610-05 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 IW610-05?
For technical support, including IW610-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IW610-05 requirements.
6.How does Aetrix verify that IW610-05 is sourced from the original manufacturer or authorized distributors?
All IW610-05 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 IW610-05 meets industry standards.
7.What is the process for return or replacement of IW610-05?
All IW610-05 units undergo pre-shipment inspection (PSI). If there is an issue with IW610-05, 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 IW610-05 part is unused and in its original packaging.
Return procedure for IW610-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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