InnoSwitch3-TN
High Efficiency Off-line CV/CC QR Flyback Switcher IC with Integrated 725 V Primary MOSFET, Synchronous Rectification and Integrated Secondary-Side Control for Appliance, Meter, and Industrial Applications
Applications
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Product
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Data Sheet
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Output Power (Max) - Open Frame, 230V
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Output Power (Max) - Open Frame, Univ
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Breakdown Voltage
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IC Package
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Topology
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Control Scheme
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Product Type
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Switching Frequency (min)
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Switching Frequency (max)
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Voltage - Input (Min)
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Voltage - Input (Max)
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Output Profile
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Internal Switch
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Protection Features
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Over-Temperature Response
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Secondary Response
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Auto-Restart & Overvoltage Response
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Temperature - Operating (Min)
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Temperature - Operating (Max)
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MSL Rating
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RDK Available
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Data Sheet
View Data Sheet
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Output Power (Max) - Open Frame, 230V
12.0 W
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Output Power (Max) - Open Frame, Univ
10.0 W
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Breakdown Voltage
725 V
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IC Package
MinSOP-16A
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Topology
Flyback
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Control Scheme
Fluxlink
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Product Type
IC
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Switching Frequency (min)
25 kHz
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Switching Frequency (max)
95 kHz
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Voltage - Input (Min)
85 V
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Voltage - Input (Max)
265 V
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Output Profile
CV/CC
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Internal Switch
Yes
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Protection Features
Input Overvoltage, Input Undervoltage, Open SR FET Detection, Output Overload, Output Overvoltage, Output Short Circuit, Overtemperature
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Over-Temperature Response
Hysteretic
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Secondary Response
Auto-restart, Latch Off
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Auto-Restart & Overvoltage Response
Auto-restart, Latch Off
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Temperature - Operating (Min)
-40 °C
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Temperature - Operating (Max)
150 °C
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MSL Rating
3
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RDK Available
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Data Sheet
View Data Sheet
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Output Power (Max) - Open Frame, 230V
15.0 W
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Output Power (Max) - Open Frame, Univ
12.0 W
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Breakdown Voltage
725 V
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IC Package
MinSOP-16A
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Topology
Flyback
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Control Scheme
Fluxlink
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Product Type
IC
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Switching Frequency (min)
25 kHz
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Switching Frequency (max)
95 kHz
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Voltage - Input (Min)
85 V
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Voltage - Input (Max)
265 V
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Output Profile
CV/CC
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Internal Switch
Yes
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Protection Features
Input Overvoltage, Input Undervoltage, Open SR FET Detection, Output Overload, Output Overvoltage, Output Short Circuit, Overtemperature
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Over-Temperature Response
Hysteretic
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Secondary Response
Auto-restart, Latch Off
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Auto-Restart & Overvoltage Response
Auto-restart, Latch Off
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Temperature - Operating (Min)
-40 °C
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Temperature - Operating (Max)
150 °C
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MSL Rating
3
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RDK Available
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Data Sheet
View Data Sheet
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Output Power (Max) - Open Frame, 230V
21.0 W
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Output Power (Max) - Open Frame, Univ
16.0 W
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Breakdown Voltage
725 V
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IC Package
MinSOP-16A
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Topology
Flyback
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Control Scheme
Fluxlink
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Product Type
IC
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Switching Frequency (min)
25 kHz
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Switching Frequency (max)
95 kHz
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Voltage - Input (Min)
85 V
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Voltage - Input (Max)
265 V
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Output Profile
CV/CC
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Internal Switch
Yes
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Protection Features
Input Overvoltage, Input Undervoltage, Open SR FET Detection, Output Overload, Output Overvoltage, Output Short Circuit, Overtemperature
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Over-Temperature Response
Hysteretic
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Secondary Response
Auto-restart, Latch Off
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Auto-Restart & Overvoltage Response
Auto-restart, Latch Off
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Temperature - Operating (Min)
-40 °C
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Temperature - Operating (Max)
150 °C
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MSL Rating
3
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RDK Available
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Product Details
The InnoSwitch3-TN family dramatically increases the efficiency of auxiliary power supplies used in appliances, consumer products and industrial applications. Ideal for both isolated and non-isolated designs, this advanced flyback controller can achieve up to 90% full load efficiency, flat efficiency across the load range and very low no-load consumption. The InnoSwitch3-TN may be used as an accurate 5 V single-output power supply, with two positive rails or with both positive and negative rails.
The 725 V primary MOSFET, primary and secondary flyback controllers are coupled using the proprietary FluxLink communications channel. Safety-rated FluxLink communication ensures reliable synchronous rectification and accurate output CV and CC. Comprehensive safety features include output over-current protection and over-temperature protection. The small MinSOP package and a low number of external components make the InnoSwitch3-TN ICs ideal for compact designs.
Product Highlights
Ideal for Isolated and Non-Isolated Applications
- Flybacks with positive and negative output rails
- Incorporates a multi-mode Quasi Resonant (QR) / CCM flyback controller, 725 V primary MOSFET, secondary voltage and current sensing, SR driver
- Integrated FluxLink™ feedback
- Compact package reduces PCB area
- High efficiency across load range
- Accurate CV/CC independent of transformer design or external components
- Easily meets 20% regulation limit on 5 V output during zero load to full-load transients
EcoSmart™ – Energy Efficient
- Less than 5 mW no-load at 230 VAC
- Enables designs that easily meet global energy efficiency regulations
- Achieves up to 90% full load efficiency
Advanced Protection / Safety Features
- Integrated output OVP
- Open-gate detection for SR FET
- Hysteretic thermal shutdown
- Overload power limited <15 W (5 V and <3 A)
- Using accurate internal CC (constant-current) limit
Full Safety and Regulatory Compliance
- Reinforced insulation with isolation voltage >4000 VAC
- 100% production Hipot testing
- UL1577, TUV (EN62368-1), CQC (GB4943.1), VDE 0884-17 (EN60747-17) safety approved
- Enables designs that have “class A” performance criteria for EN61000-4 suite of test standards, including EN61000-4-2, 4-3 (30 V/m), 4-4, 4-5, 4-6, 4-8 (100 A/m) and 4-9 (1000 A/m)
Green Package
- Halogen free and RoHS compliant
