Quasi-resonant flyback controller is optimized for offline switched-mode power supplies in cascode flyback configuration. The controller operates from a 10 V to 25.5 V VCC range and uses digital frequency reduction up to 10 zero crossings for improved light-load efficiency and EMI performance. Active burst mode supports selectable standby-power entry and exit levels, with burst-mode peak-current limits of 0.31 V or 0.35 V at the current-sense input. The device integrates soft start, cycle-by-cycle peak current limiting, line overvoltage and brownout protection, output overvoltage protection, VCC protection, overload protection, and overtemperature protection in a PG-DSO-8 package. Lead-free plating, halogen-free mold compound, and RoHS compliance are specified.
Checking distributor stock and pricing after the page loads.
Sign in to ask questions about the Infineon ICE5QSAG datasheet using AI. Get instant answers about specifications, features, and technical details, ideal for finding information in larger documents.
Sign In to ChatWidest selection of semiconductors and electronic components in stock and ready to ship ™
| Controller type | Quasi-resonant flyback controller |
| Configuration | Offline switched-mode power supply, cascode configuration |
| Package | PG-DSO-8 |
| Pin count | 8pins |
| VCC operating range | 10 to 25.5V |
| VCC turn-on threshold | 16 typV |
| VCC turn-off threshold | 10 typV |
| Startup current consumption | 0.19 typmA |
| Normal current consumption | 0.9 typmA |
| Burst-mode current consumption | 0.5 typmA |
| Gate output high voltage | 10 typV |
| Peak current limit, normal mode | 1.00 typ at CS pinV |
| Leading-edge blanking time | 220 typns |
| Soft-start time | 12 typms |
| Maximum on time | 35 typµs |
| Maximum off time | 42.5 typµs |
| Zero-crossing threshold | 100 typmV |
| Digital frequency reduction | Up to 10zero crossings |
| Operating junction temperature range | -40 to overtemperature threshold°C |
| Overtemperature protection threshold | 140 typ°C |
| RoHS | Compliant |
| Lead Finish | Pb-free lead plating |
| Halogen Free | Halogen-free mold compound |
Download the complete datasheet for Infineon ICE5QSAG to view detailed technical specifications.
The embedded preview will load automatically when this section scrolls into view.
These are design resources that include the Infineon ICE5QSAG
User guide for the 10 kW EVAL_10KW_B6_SIC400V evaluation kit using 400 V CoolSiC G2 MOSFETs for three-phase half-bridge (B6) power conversion applications.
User guide for EVAL-2ED1324S12PM1 evaluation board featuring the 2ED1324S12P 1200V SOI gate driver and FP25R12W1T7_B11 EasyPIM 1B IGBT7 module for motor drive applications.
Design guide for a 3300 W CCM bridgeless totem pole PFC using Infineon CoolMOS CFD7 MOSFETs and XMC1402 MCU, achieving 99% efficiency for high-end server and telecom applications.
1400W DC-DC converter (400V to 12V) using CoolMOS CFD7 and OptiMOS 5 in a phase-shift full-bridge topology for server applications with 97% peak efficiency.
Design for a 3300 W bi-directional bridgeless totem-pole PFC using CoolSiC MOSFETs and XMC1404 MCU, achieving 99% efficiency for high-end server and telecom power supplies.
2400W 65kHz CCM PFC application note for EVAL_2K4W_ACT_BRD_S7 using 600V CoolMOS S7 for active-line rectification and inrush control to meet 80 PLUS Titanium standards.
Design guide for an 800W ZVS PSFB evaluation board for server and industrial SMPS using 600V CoolMOS CFD7 MOSFETs and XMC4200 digital control.
