跳转到主要内容
Digital PWM Controller Offers Peak Power Mode, Eliminating Need to Oversize Power Supply

封装信息

Lead Count (#) 8
Pitch (mm) 1.27
Pkg. Type SOIC-8

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

Lead Count (#) 8
Carrier Type Tape & Reel
Moisture Sensitivity Level (MSL) 1
Protection Features OVP/OTP (w/o Latch), OVP, IUVP, PCL/OCP, SRSC
Pb (Lead) Free Yes
Temp. Range -40 to +125°C
Advanced Features EZ-EMI, Fast DLR, High Peak Power, PrimAccurate
Application Adapters, Chargers, Home Appliances, Networking
Control Mode Primary-Side Regulation Peak Current Mode DCM
Controller / Integrated Controller
FET Driver Output Current (Max) (A) 1
No Load Power (mW) 50
Output Power (Min) (W) 15
Output Power Max (W) 40
PWMs (#) 1
Parametric Category Flyback & Forward Controllers
Pass Device FET
Pitch (mm) 1.27
Pkg. Type SOIC-8
Qty. per Reel (#) 2500
Qualification Level Standard
Simulation Model Available diaSIM
Switching Frequency (KHz) 79 - 79
Topology Characteristic Flyback
UVLO Falling (V) 6.5
UVLO Rising (V) 13.7
VBIAS (Max) (V) 20
已发布 Yes

描述

The iW1770 offers a compact solution for power supplies that need to provide short bursts of output power up to 60W, without oversizing the power system board components and cost. With an average output up to 40W, the iW1770 adds a second, higher peak current limit, allowing power supplies to provide a momentary peak current pulse from the output without entering constant current mode. This optimizes adapter cost and size by enabling a much higher peak output power while maintaining the same external components used for the lower, nominal system output power.

The iW1770 meets the US DoE’s external power supply standard and the EU’s Code of Conduct, Version 5, Tier 2 standard, with no-load power consumption less than 50mW while complying with active mode efficiency requirements. Additional features include fast dynamic load response (DLR), and a full set of protection features including output overcurrent, overvoltage and short-circuit protection.

The iW1770 also incorporates Renesas' SmartDefender™ smart hiccup technology to help address soft short circuits in cables and connectors.

A DiaSIM™ simulation model is available for the iW1770. For more information and where to download, please visit the DiaSIM™ page.