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Renesas IW1790-07
- Part No.:
- IW1790-07
- Manufacturer:
- Renesas
- Category:
- Power Supply Controllers, Monitors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IW1790-07.pdf
- Description:
- HIGHLY INTEGRATED AC/DC PRIMARY-
- Quantity:
- Payment:
- Shipping:
Inventory:1,456
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Product details
Overview
The iW1790-07 from Renesas Electronics is a primary-side AC/DC PWM controller optimized for Qualcomm Quick Charge 2.0 and 3.0 rapid charging adapters, featuring XM-Comm transformer-based communication, quasi-resonant operation, <20mW no-load power consumption at 230VAC/5V–2A, and multi-level constant-voltage/constant-current regulation without secondary feedback.
For engineers reviewing the iW1790-07 datasheet, iW1790-07 pinout, iW1790-07 application, or iW1790-07 equivalent, key selection considerations include its SOIC-8 package, QC2.0/QC3.0 protocol support with iW662-01/iW662-02 secondary controllers, kCC = 0.5 startup current gain, 2.9V CC shutdown voltage, and integrated SmartDefender+™ fault handling for cable soft shorts.
Technical Context
The iW1790-07 implements primary-side regulation using VSENSE-based auxiliary winding sensing and ISENSE-based cycle-by-cycle peak current control, enabling tight CV/CC without optocouplers. Its XM-Comm interface communicates output voltage requests, current limits, and OVP/undershoot data bidirectionally with iW662-01/iW662-02 via the main transformer.
It uses source-charging VCC technology to eliminate active start-up circuitry and achieves quasi-resonant switching with load-adaptive maximum frequency control. Multi-mode PWM/PFM operation and 4-level user-configurable cable drop compensation operate independently of output voltage setting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC supply range | −0.3 V to 45.0 V - supports wide-input offline operation without external LDO |
| No-load power consumption | <20 mW at 230 VAC, 5 V/2 A output - meets stringent EU CoC Tier 2 and DOE Level VI |
| Startup kCC gain | 0.5 - sets initial constant-current regulation slope in QC2.0/QC3.0 handshake sequences |
| CC shutdown voltage | 2.9 V - triggers current-limit disable during over-current events with iW662 secondary |
| Operating junction temperature | −40 °C to +150 °C - enables high-power density adapter designs with minimal heatsinking |
| Thermal resistance θJA | 160 °C/W - defines SOIC-8 thermal derating envelope for continuous 15 W operation |
| ESD rating (HBM) | ±2000 V - ensures robustness during board assembly and field handling |
Pinout & Package
Package: 8-lead SOIC-8 (standard body, 150 mil width), RoHS-compliant, tape-and-reel (2500/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Primary-side power and signal return; connects to bulk capacitor negative and PCB ground plane |
| SD (Pin 2) | Shutdown input | Accepts analog voltage for external OTP via NTC or logic-level shutdown signal |
| VSENSE (Pin 3) | Auxiliary winding sense | Primary-side feedback path for CV regulation and XM-Comm receive/transmit channel |
| CFG (Pin 4) | Configuration input | Sets cable drop compensation level and enables auxiliary winding open-circuit protection |
| ISENSE (Pin 5) | Current sense input | Connects to current-sense resistor for peak-current-mode control and CC regulation |
| SOURCE (Pin 6) | MOSFET source connection | Direct tie to external MOSFET source; internal startup charge circuit references this node |
| GATE (Pin 7) | Gate driver output | Drives external N-channel MOSFET gate with 1.5 A sink/source capability |
| VCC (Pin 8) | Power supply input | IC bias supply; internally regulated; accepts up to 45 V DC after startup |
Key Features
| Feature | Design Value |
|---|---|
| XM-Comm transformer communication | Eliminates optocoupler and secondary-side feedback components while enabling real-time VOUT/VCC/IOUT commands between iW662-01/iW662-02 and iW1790-07 |
| Source-charging VCC startup | Removes external active start-up circuit, reducing BOM count and enabling sub-20 mW no-load power at full input range |
| SmartDefender+™ fault response | Reduces average output power during soft short conditions (e.g., frayed cables) without latching, maintaining USB port availability |
| Multi-level cable drop compensation | 4-user-selectable levels compensate for IR drop across USB-C cables independent of negotiated output voltage |
| EZ-EMI® design | Integrated frequency jittering and optimized gate drive slew rates reduce common-mode noise and simplify EMI filter design |
Applications
| USB-PD-Compatible Rapid Charger | QC2.0/QC3.0 Wall Adapter |
|---|---|
Use Scenario: 15 W compact wall adapter delivering 5 V/3 A or 9 V/1.67 A to smartphones with Qualcomm SoCs. IC Role / Device Role / Timing Role: Primary-side PWM controller executing quasi-resonant switching, XM-Comm-based voltage/current negotiation, and dynamic load response. Use Value: Enables <20 mW no-load standby, eliminates optocoupler and TL431, and achieves ±2% CV/CC accuracy across line/load/temperature. | Use Scenario: Dual-port travel charger supporting simultaneous QC3.0 negotiation on one port and legacy 5 V charging on another. IC Role / Device Role / Timing Role: Primary-side controller managing fast transient response (<50 µs) to QC3.0 voltage step changes via XM-Comm handshake with iW662-01. Use Value: Delivers smooth 5 V → 9 V → 12 V transitions without output droop or overshoot, meeting QC3.0 timing compliance. |
| High-Density Portable Power Bank | OEM Tablet Fast Charger |
Use Scenario: 20,000 mAh power bank with integrated AC input and QC3.0 output capable of recharging itself from wall outlet. IC Role / Device Role / Timing Role: AC/DC controller providing isolated 12 V bus for battery charging ICs, with dual OTP (internal + external NTC via SD pin). Use Value: Supports thermally constrained enclosure via dual OTP and maintains stable regulation under variable battery impedance loads. | Use Scenario: 12 V/2 A OEM tablet charger certified for Samsung Adaptive Fast Charging and QC3.0 interoperability. IC Role / Device Role / Timing Role: Primary-side regulator implementing multi-level CC regulation with kCC = 0.5 and 2.9 V CC shutdown threshold per iW1790-07 ordering spec. Use Value: Ensures precise current limiting during AFC/QC3.0 handshake phases and prevents false over-current trips during cable insertion transients. |
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 |
|---|---|---|---|
| MP6908A | Secondary-side synchronous rectifier controller only; requires companion primary controller and optocoupler-based feedback | Lacks XM-Comm, cannot replace iW1790-07 standalone; used downstream of iW1790-07 in same design | Select when optimizing SR efficiency in iW1790-07-based adapters, not as functional replacement |
| INN3266C | Integrated primary-side switch + controller in InSOP-24 package; includes X-cap discharge; no XM-Comm; uses digital communication over auxiliary winding | Supports QC3.0 but requires different secondary (INN369x) and lacks SmartDefender+™ soft-short mitigation | Choose for higher integration (no external MOSFET) and built-in safety features, accepting trade-offs in XM-Comm compatibility and soft-short handling |
Compared with MP6908A and INN3266C, the iW1790-07 uniquely delivers transformer-coupled bidirectional protocol communication with iW662, enabling true optocoupler-free QC3.0 implementation and SmartDefender+™ adaptive soft-short response-critical for high-reliability mobile adapter designs.
Availability
iW1790-07 is available at Aetrix Electronics and suitable for rapid charge AC/DC adapters, USB-C wall chargers, and OEM smartphone/tablet power supplies requiring stable component supply, long-term lifecycle support, and qualification for QC2.0/QC3.0 certification programs.
Supply support for iW1790-07 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 delivering microcontrollers, analog, power, and SoC products for automotive, industrial, infrastructure, and IoT applications.
The iW1790-07 belongs to Dialog Semiconductor's (acquired by Renesas in 2021) Rapid Charge™ controller family, engineered specifically for high-efficiency, low-noise, optocoupler-free AC/DC adapters supporting proprietary fast-charge protocols.
FAQ
What is the function of the SD pin on the iW1790-07?
The SD (Shutdown) pin on the iW1790-07 serves as an analog input for external over-temperature protection using an NTC thermistor or as a logic-level shutdown control. When configured for OTP, it monitors temperature-dependent voltage and initiates shutdown if the threshold is exceeded. This dual-function pin enables flexible thermal management in compact iW1790-07-based adapters without adding discrete comparators.
Which secondary-side controllers are compatible with the iW1790-07?
The iW1790-07 is designed exclusively for use with iW662-01 or iW662-02 secondary-side controllers, as specified in the official ordering information table. These pairings enable full XM-Comm functionality for Qualcomm Quick Charge 2.0 and 3.0 protocols. Using other secondary controllers - including iW660 or iW663 - will not support the iW1790-07's defined protocol stack or kCC/CC shutdown parameters.
Does the iW1790-07 support USB Power Delivery (USB-PD)?
No, the iW1790-07 does not support USB Power Delivery. It is specifically engineered for Qualcomm Quick Charge 2.0 and 3.0, Samsung AFC, and Huawei FCP protocols via XM-Comm. USB-PD requires a different physical layer (BMC signaling over CC pins) and policy engine not implemented in the iW1790-07 architecture or supported by its iW662-01/iW662-02 companion controllers.
What is the significance of the "kCC = 0.5" parameter for the iW1790-07?
The kCC = 0.5 parameter for the iW1790-07 defines the current-sense gain applied during constant-current regulation startup and handshake phases with iW662-01/iW662-02. This calibrated gain ensures accurate current limiting across input voltage variations and is factory-trimmed to match QC2.0/QC3.0 specification requirements - a value distinct from other iW1790 variants like iW1790-08 (kCC = 0.422).
How does the iW1790-07 achieve <20 mW no-load power consumption?
The iW1790-07 achieves <20 mW no-load power consumption through source-charging VCC technology, which eliminates the need for an external active start-up circuit, and ultra-low quiescent current design in quasi-resonant mode. This performance is validated at 230 VAC with a typical 5 V/2 A output configuration - a key requirement for iW1790-07 in energy-efficient rapid charge adapter designs targeting global efficiency standards.
IW1790-07 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
IW1790-07 FAQ
1.How can I place an order for IW1790-07 through Aetrix?
Please submit a Request for Quotation (RFQ) for IW1790-07 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 IW1790-07 reliable?
The price and inventory of IW1790-07 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IW1790-07 is usually 5 days.
3.What payment methods are accepted for IW1790-07?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IW1790-07 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IW1790-07?
IW1790-07 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IW1790-07 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 IW1790-07?
For technical support, including IW1790-07 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IW1790-07 requirements.
6.How does Aetrix verify that IW1790-07 is sourced from the original manufacturer or authorized distributors?
All IW1790-07 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 IW1790-07 meets industry standards.
7.What is the process for return or replacement of IW1790-07?
All IW1790-07 units undergo pre-shipment inspection (PSI). If there is an issue with IW1790-07, 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 IW1790-07 part is unused and in its original packaging.
Return procedure for IW1790-07:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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