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Renesas IW1790-00
- Part No.:
- IW1790-00
- Manufacturer:
- Renesas
- Category:
- Power Supply Controllers, Monitors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IW1790-00.pdf
- Description:
- HIGHLY INTEGRATED AC/DC PRIMARY-
- Quantity:
- Payment:
- Shipping:
Inventory:4,210
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Product details
Overview
The iW1790-00 from Renesas Electronics is a primary-side AC/DC PWM controller optimized for rapid charge adapters, supporting Samsung AFC via XM-Comm transformer communication, delivering multi-level CV/CC regulation without secondary feedback, achieving <20mW no-load power at 5V/2A, and eliminating optocouplers when paired with iW660-02.
For engineers reviewing the iW1790-00 datasheet, iW1790-00 pinout, iW1790-00 application, or iW1790-00 equivalent, key selection considerations include XM-Comm compatibility with iW660-02, SOIC-8 package integration, 3.3V/6.5V CC shutdown thresholds, kCC = 0.5 startup current gain, and AFC protocol support in compact USB-C adapter designs.
Technical Context
The iW1790-00 implements quasi-resonant (QR) PWM control with load-adaptive maximum constant frequency switching to optimize efficiency, size, and common-mode noise. It uses source-charging VCC technology for startup and integrates XM-Comm to exchange voltage requests, current limits, and OVP/undershoot data across the main transformer.
Its primary-side regulation architecture eliminates loop compensation components while maintaining stability across line/load/temperature. The device pairs exclusively with iW660-02 for AFC operation and supports user-configurable 4-level cable drop compensation independent of output voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC supply range | –0.3 V to 45 V - enables direct connection to rectified AC without external LDO |
| No-load power consumption | <20 mW at 230 VAC, 5 V/2 A output - meets stringent energy-efficiency standards |
| Startup kCC gain | 0.5 - sets initial constant-current regulation slope for AFC-compatible output profiles |
| CC shutdown voltage | 3.3 V @ VBUS = 5 V; 6.5 V @ VBUS = 9 V - ensures precise current-limit termination per AFC spec |
| Operating junction temperature | –40 °C to +150 °C - supports high-density enclosed adapter thermal environments |
| Package thermal resistance θJA | 160 °C/W - informs heatsinking requirements for SOIC-8 PCB layout |
| ESD rating (HBM) | ±2000 V - ensures robustness during board assembly and end-user handling |
Pinout & Package
Package: 8-lead SOIC-8 (surface-mount, standard footprint).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Primary-side return path for all analog and power circuits; connects to PCB ground plane |
| 2 SD | Shutdown control input | Accepts external NTC for OTP or logic-level shutdown; configures fault response mode |
| 3 VSENSE | Auxiliary winding sense | Primary-side feedback input for CV regulation and XM-Comm receive channel |
| 4 CFG | Configuration input | Sets cable drop compensation level and enables auxiliary winding open-circuit protection |
| 5 ISENSE | Current sense input | Connects to primary current-sense resistor for cycle-by-cycle peak-current limiting |
| 6 SOURCE | Power MOSFET source connection | Internal connection to startup VCC charge circuit and high-side driver reference |
| 7 GATE | MOSFET gate driver output | Drives external N-channel MOSFET switch with 1.5 A peak sink/source capability |
| 8 VCC | IC power supply | Supplies internal bias; accepts up to 45 V DC; high rating removes need for external LDO |
Key Features
| Feature | Design Value |
|---|---|
| XM-Comm transformer communication | Replaces optocoupler with bidirectional digital signaling over main transformer - reduces BOM count by ≥3 components |
| Source-charging VCC technology | Charges VCC from SOURCE pin pre-startup - eliminates active start-up circuit and associated leakage paths |
| Multi-level CV/CC regulation | Supports ≥3 discrete output voltage levels (e.g., 5 V/9 V/12 V) with independent current limits per level - required for AFC handshake |
| SmartDefender+™ fault management | Reduces average output power during soft shorts without latching - maintains system responsiveness during connector faults |
| EZ-EMI® design | Integrated frequency jittering and QR timing control - simplifies EMI filter design and reduces common-mode choke size |
Applications
| Samsung AFC Charging Adapter | USB-C Wall Charger (5–12 V) |
|---|---|
Use Scenario: Compact 15 W wall adapter for Galaxy smartphones requiring dynamic 5 V → 9 V transitions within 20 ms. IC Role / Device Role / Timing Role: Primary-side PWM controller executing AFC voltage negotiation via XM-Comm with iW660-02 on secondary side. Use Value: Enables <20 mW no-load standby and eliminates optocoupler - reducing height, cost, and failure points in space-constrained enclosures. |
Use Scenario: Multi-protocol USB-C charger supporting AFC and legacy 5 V charging in single hardware platform. IC Role / Device Role / Timing Role: Rapid charge controller managing multi-level CV/CC regulation and cable drop compensation across variable output voltages. Use Value: Delivers 3.3 V/6.5 V CC shutdown thresholds matched to AFC specification - ensuring safe current-limit transitions during voltage stepping. |
| Smartphone OEM Reference Design | Low-Profile Travel Adapter |
Use Scenario: Reference design validated by Samsung for AFC-compliant accessories with production-ready thermal performance. IC Role / Device Role / Timing Role: Core control IC implementing XM-Comm-based closed-loop regulation and SmartDefender+™ soft-short mitigation. Use Value: Provides –40 °C to +150 °C operating range and 160 °C/W θJA - enabling reliable operation in sealed plastic housings without forced air. |
Use Scenario: Foldable travel adapter targeting UL/CE compliance with minimal component count and <10 mm profile. IC Role / Device Role / Timing Role: Primary-side controller using source-charging VCC and EZ-EMI® to reduce passive count and EMI filter volume. Use Value: Achieves full AFC functionality in SOIC-8 footprint - eliminating optocoupler, TL431, and compensation network for <30% board area reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar primary-side rapid charge controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| iW1790-07 | Optimized for QC2.0/QC3.0 with kCC = 0.5 and 2.9 V CC shutdown; supports iW662-01/02 | Requires different secondary-side controller (iW662); not AFC-protocol compliant | Select for Quick Charge ecosystem designs where iW660-02 is unavailable or QC certification is mandatory |
| iW1790-08B | kCC = 0.422; CC shutdown clamped to 2.9 V if 66% VBUS ≤ 2.9 V; supports iW662-00/05 | Targeted for newer QC3.0 implementations with adaptive VBUS scaling; lacks AFC-specific thresholds | Prefer for new QC3.0 designs requiring tighter current regulation slope and dynamic VBUS-referenced shutdown |
Compared with iW1790-07 and iW1790-08B, the iW1790-00 provides fixed 3.3 V/6.5 V CC shutdown voltages aligned to Samsung AFC timing and handshake requirements, uses iW660-02 for secondary-side coordination, and delivers guaranteed <20 mW no-load power - making it the only variant qualified for AFC-certified adapter production.
Availability
iW1790-00 is available at Aetrix Electronics and suitable for rapid charge adapter development, USB-C wall charger manufacturing, and smartphone OEM reference design programs requiring stable component supply and full AFC protocol compliance.
Supply support for iW1790-00 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 products for automotive, industrial, infrastructure, and IoT applications.
The iW1790-00 belongs to Dialog Semiconductor's (acquired by Renesas in 2021) Rapid Charge™ controller family, engineered specifically for high-efficiency, low-component-count AC/DC adapters supporting proprietary fast-charge protocols including AFC, QC, and FCP.
FAQ
What is the primary function of the iW1790-00 in an AC/DC rapid charge adapter?
The iW1790-00 serves as the primary-side PWM controller in rapid charge adapters, executing quasi-resonant switching, multi-level constant-voltage and constant-current regulation, and XM-Comm-based communication with secondary-side controllers like iW660-02. Its role eliminates the optocoupler and enables AFC-compliant voltage transitions without secondary feedback - making iW1790-00 essential for compact, efficient, and protocol-certified designs.
Which secondary-side controller is required for iW1790-00 to support Samsung AFC?
The iW1790-00 requires pairing with the iW660-02 secondary-side controller to implement Samsung Adaptive Fast Charge. This combination enables XM-Comm-based bidirectional communication for output voltage requests, current limit updates, and fault reporting - and is explicitly specified in the iW1790-00 ordering table. Using any other secondary controller invalidates AFC compliance for iW1790-00.
Does iW1790-00 support Quick Charge 2.0 or 3.0 protocols?
No, the iW1790-00 is specifically configured for Samsung AFC and does not support Qualcomm Quick Charge 2.0 or 3.0. Its kCC gain (0.5), CC shutdown voltages (3.3 V at 5 V VBUS, 6.5 V at 9 V VBUS), and default secondary-side pairing with iW660-02 are all AFC-specific. For QC support, Renesas lists iW1790-07 or iW1790-08B variants instead of iW1790-00.
What is the significance of the "kCC = 0.5" parameter for iW1790-00?
The kCC = 0.5 parameter defines the current-sense gain used during constant-current regulation in the iW1790-00. It determines the relationship between sensed primary current and the controller's internal current limit threshold - directly affecting output current accuracy and AFC handshake stability. This value is factory-trimmed and fixed for iW1790-00, distinguishing it from QC-optimized variants with kCC = 0.422.
Can iW1790-00 operate without an external active start-up (ASU) circuit?
Yes, the iW1790-00 incorporates source-charging VCC technology that charges its internal VCC capacitor directly from the SOURCE pin before startup, eliminating the need for an external active start-up circuit. This feature contributes directly to the iW1790-00's <20 mW no-load power consumption and simplifies the front-end design - a confirmed capability documented in the product summary and absolute maximum ratings.
IW1790-00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Applications:
- Power Supply Controller
- Voltage - Input:
- -
- Voltage - Supply:
- 45V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
IW1790-00 FAQ
1.How can I place an order for IW1790-00 through Aetrix?
Please submit a Request for Quotation (RFQ) for IW1790-00 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 IW1790-00 reliable?
The price and inventory of IW1790-00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IW1790-00 is usually 5 days.
3.What payment methods are accepted for IW1790-00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IW1790-00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IW1790-00?
IW1790-00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IW1790-00 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 IW1790-00?
For technical support, including IW1790-00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IW1790-00 requirements.
6.How does Aetrix verify that IW1790-00 is sourced from the original manufacturer or authorized distributors?
All IW1790-00 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 IW1790-00 meets industry standards.
7.What is the process for return or replacement of IW1790-00?
All IW1790-00 units undergo pre-shipment inspection (PSI). If there is an issue with IW1790-00, 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 IW1790-00 part is unused and in its original packaging.
Return procedure for IW1790-00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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