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GaN Digital Quasi-Resonant AC/DC Flyback Controller for Zero Standby Power RapidCharge Power Supplies up to 140W

封装信息

Lead Count (#) 6
Pkg. Type SOT23-6L

环境和出口类别

Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US)

产品属性

Pkg. Type SOT23-6L
Lead Count (#) 6
Carrier Type Tape & Reel
Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
Temp. Range -40 to +125°C
Advanced Features Cable Fault Protection, PrimAccurate
Application Adapters, Chargers, In-Wall Power Outlets, Networking, PSUs, TV and Monitor Power Supplies
Control Mode Peak Current Mode DCM/CCM
Controller / Integrated Controller
FET Driver Output Current (Max) (A) 1
Function Zero Standby Power with low system cost (<5mW at 230Vac), Digital quasi-resonant control, Both CCM and DCM, High frequency up to 270kHz, Built-in optimized GaN gate driver
No-Load Operating Current 2
Output Power Max (W) 140
PWMs (#) 1
Parametric Category Flyback & Forward Controllers
Product Category Flyback & Forward Controllers
Qty. per Reel (#) 3000
Qualification Level Standard
Switching Frequency (KHz) 70 - 130
Topology Characteristic Quasi-Resonant
UVLO Falling (V) 7.5
UVLO Rising (V) 15
VBIAS (Max) (V) 40

描述

The iW9870 digital AC/DC controller integrates Renesas’ patented quasi-resonant (QR) valley mode switching technology with both CCM and DCM operation to enable light-weight, low-cost, and easily portable zero standby power (ZSP) RapidCharge™ power supplies for smartphones, tablets, portable electronics products, monitors, TVs, and home appliances.

The iW9870 is optimized for driving GaN HEMTs directly to allow higher switching frequency and smaller magnetics at high efficiency. The device supports USB Power Delivery 3.0 with PPS at output powers up to 63W when paired with Renesas’ iW760 secondary-side IC, which integrates fast charge protocol support, USB Type-C® control, and synchronous rectification (SR) FET control. The iW9870 also pairs with the iW765 for USB PD 3.1 applications up to 100W and with the iW690 for fixed voltage, zero standby power supply applications up to 140W.

Using proprietary intelligent power-saving technology, the iW9870 and one of the compatible secondary-side controllers enable zero standby power fast charging power supplies that consume less than 5mW no-load standby power, ideal for adapters and chargers or any device that is left continuously connected to AC mains.

The iW9870 further reduces the total power supply BOM count and system cost by integrating innovative EMI reduction technologies, resulting in very low EMI power supplies using a minimum of external components. The iW9870’s adaptive QR mode also allows the use of smaller passive components, further reducing the overall BOM cost.

The iW9870 is compatible with Transphorm GaN technology.