Datasheet INN5375F, INN5376F, INN5377F, INN5396F, INN5475F, INN5476F, INN5477F, INN5496F (Power Integrations) - 8
| Manufacturer | Power Integrations |
| Description | Digitally Controllable Off-Line CV/CC ZVS Flyback Switcher IC with 750 V and 900 V PowiGaN Switch, Synchronous Rectification and FluxLink Feedback |
| Pages / Page | 58 / 8 — InnoSwitch5-Pro. ZVS and QR Switching Window Optimization. FORWARD Pin … |
| File Format / Size | PDF / 3.5 Mb |
| Document Language | English |
InnoSwitch5-Pro. ZVS and QR Switching Window Optimization. FORWARD Pin Voltage. VDS ary. Prim. Time
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Text Version of Document
InnoSwitch5-Pro
Quasi-Resonant (QR) mode is enabled for ~20 msec after DCM is
ZVS and QR Switching Window Optimization
detected. QR switching is disabled after ~20 msec, at which point The InnoSwitch5-Pro IC al ows for optimization of switching to achieve switching may occur at any time a secondary request is initiated. QR / Val ey switching as close to the peak / minimum FORWARD pin The secondary control er includes blanking of ~1 msec to prevent voltage respectively. Command register 0x02 = 0x1F is recommended false detection of primary “ON” cycle when the FORWARD pin rings foroptimal switching. below ground. Default value is 0x01. Request Window Output Voltage -9095b-071923 PI
FORWARD Pin Voltage VDS ary Prim Time
Figure 7. Intelligent Zero Voltage Mode Switching. Request Window -9607-081122 PI Output Voltage
FORWARD Pin Voltage VDS ary Prim Time
Figure 8. Intelligent Quasi-Resonant Mode Switching.
8
Rev. C 01/24 www.power.com
Quasi-Resonant (QR) mode is enabled for ~20 msec after DCM is
ZVS and QR Switching Window Optimization
detected. QR switching is disabled after ~20 msec, at which point The InnoSwitch5-Pro IC al ows for optimization of switching to achieve switching may occur at any time a secondary request is initiated. QR / Val ey switching as close to the peak / minimum FORWARD pin The secondary control er includes blanking of ~1 msec to prevent voltage respectively. Command register 0x02 = 0x1F is recommended false detection of primary “ON” cycle when the FORWARD pin rings foroptimal switching. below ground. Default value is 0x01. Request Window Output Voltage -9095b-071923 PI
FORWARD Pin Voltage VDS ary Prim Time
Figure 7. Intelligent Zero Voltage Mode Switching. Request Window -9607-081122 PI Output Voltage
FORWARD Pin Voltage VDS ary Prim Time
Figure 8. Intelligent Quasi-Resonant Mode Switching.
8
Rev. C 01/24 www.power.com
