LinkSwitch-XT2SR
High-Efficiency Off-line CV Flyback Switcher IC with Integrated 725 V / 900 V Primary MOSFET, Low No-Load, and Synchronous Rectification
Applications
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Product
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Data Sheet
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Output Power (Max) - Open Frame, Univ
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Output Power (Max) - Open Frame, 230V
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Voltage - Output (Min)
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Voltage - Output (Max)
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Breakdown Voltage
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Voltage - Input (Min)
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Voltage - Input (Max)
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Protection Features
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Control Features
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Internal Switch
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Product Type
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IC Package
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Topology
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Auto-Restart & Overvoltage Response
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Auto-Restart Threshold
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Over-Temperature Response
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Temperature - Operating (Min)
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Temperature - Operating (Max)
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Switching Frequency (max)
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Switching Frequency (Avg. 230 VAC)
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MSL Rating
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Data Sheet
View Data Sheet
|
Output Power (Max) - Open Frame, Univ
6.0 W
|
Output Power (Max) - Open Frame, 230V
7.0 W
|
Voltage - Output (Min)
5 V
|
Voltage - Output (Max)
5 V
|
Breakdown Voltage
725 V
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Protection Features
Open SR FET Detection, Output Overvoltage, Overtemperature
|
Control Features
Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
|
Internal Switch
Yes
|
Product Type
IC
|
IC Package
SO-16B
|
Topology
Flyback
|
Auto-Restart & Overvoltage Response
Auto-restart
|
Auto-Restart Threshold
OL
|
Over-Temperature Response
Hysteretic
|
Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
Switching Frequency (max)
66 kHz
|
Switching Frequency (Avg. 230 VAC)
66 kHz
|
MSL Rating
3
|
|
|
|
Data Sheet
View Data Sheet
|
Output Power (Max) - Open Frame, Univ
6.0 W
|
Output Power (Max) - Open Frame, 230V
7.0 W
|
Voltage - Output (Min)
5 V
|
|
Breakdown Voltage
725 V
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Protection Features
Open SR FET Detection, Output Overvoltage, Overtemperature
|
Control Features
Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
|
Internal Switch
Yes
|
Product Type
IC
|
IC Package
SO-16B
|
Topology
Flyback
|
Auto-Restart & Overvoltage Response
Auto-restart
|
Auto-Restart Threshold
OL
|
Over-Temperature Response
Hysteretic
|
Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
Switching Frequency (max)
66 kHz
|
Switching Frequency (Avg. 230 VAC)
66 kHz
|
MSL Rating
3
|
|
|
|
Data Sheet
View Data Sheet
|
Output Power (Max) - Open Frame, Univ
10.0 W
|
Output Power (Max) - Open Frame, 230V
12.0 W
|
Voltage - Output (Min)
5 V
|
Voltage - Output (Max)
5 V
|
Breakdown Voltage
725 V
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Protection Features
Open SR FET Detection, Output Overvoltage, Overtemperature
|
Control Features
Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
|
Internal Switch
Yes
|
Product Type
IC
|
IC Package
SO-16B
|
Topology
Flyback
|
Auto-Restart & Overvoltage Response
Auto-restart
|
Auto-Restart Threshold
OL
|
Over-Temperature Response
Hysteretic
|
Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
Switching Frequency (max)
66 kHz
|
Switching Frequency (Avg. 230 VAC)
66 kHz
|
MSL Rating
3
|
|
|
|
Data Sheet
View Data Sheet
|
Output Power (Max) - Open Frame, Univ
10.0 W
|
Output Power (Max) - Open Frame, 230V
12.0 W
|
Voltage - Output (Min)
5 V
|
|
Breakdown Voltage
725 V
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Protection Features
Open SR FET Detection, Output Overvoltage, Overtemperature
|
Control Features
Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
|
Internal Switch
Yes
|
Product Type
IC
|
IC Package
SO-16B
|
Topology
Flyback
|
Auto-Restart & Overvoltage Response
Auto-restart
|
Auto-Restart Threshold
OL
|
Over-Temperature Response
Hysteretic
|
Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
Switching Frequency (max)
66 kHz
|
Switching Frequency (Avg. 230 VAC)
66 kHz
|
MSL Rating
3
|
|
|
|
Data Sheet
View Data Sheet
|
Output Power (Max) - Open Frame, Univ
12.0 W
|
Output Power (Max) - Open Frame, 230V
15.0 W
|
Voltage - Output (Min)
5 V
|
Voltage - Output (Max)
5 V
|
Breakdown Voltage
725 V
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Protection Features
Open SR FET Detection, Output Overvoltage, Overtemperature
|
Control Features
Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
|
Internal Switch
Yes
|
Product Type
IC
|
IC Package
SO-16B
|
Topology
Flyback
|
Auto-Restart & Overvoltage Response
Auto-restart
|
Auto-Restart Threshold
OL
|
Over-Temperature Response
Hysteretic
|
Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
Switching Frequency (max)
66 kHz
|
Switching Frequency (Avg. 230 VAC)
66 kHz
|
MSL Rating
3
|
|
|
|
Data Sheet
View Data Sheet
|
Output Power (Max) - Open Frame, Univ
12.0 W
|
Output Power (Max) - Open Frame, 230V
15.0 W
|
Voltage - Output (Min)
5 V
|
|
Breakdown Voltage
725 V
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
265 V
|
Protection Features
Open SR FET Detection, Output Overvoltage, Overtemperature
|
Control Features
Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
|
Internal Switch
Yes
|
Product Type
IC
|
IC Package
SO-16B
|
Topology
Flyback
|
Auto-Restart & Overvoltage Response
Auto-restart
|
Auto-Restart Threshold
OL
|
Over-Temperature Response
Hysteretic
|
Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
Switching Frequency (max)
66 kHz
|
Switching Frequency (Avg. 230 VAC)
66 kHz
|
MSL Rating
3
|
|
|
|
Data Sheet
View Data Sheet
|
Output Power (Max) - Open Frame, Univ
10.0 W
|
Output Power (Max) - Open Frame, 230V
12.0 W
|
Voltage - Output (Min)
5 V
|
Voltage - Output (Max)
5 V
|
Breakdown Voltage
900 V
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
484 V
|
Protection Features
Open SR FET Detection, Output Overvoltage, Overtemperature
|
Control Features
Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
|
Internal Switch
Yes
|
Product Type
IC
|
IC Package
SO-16B
|
Topology
Flyback
|
Auto-Restart & Overvoltage Response
Auto-restart
|
Auto-Restart Threshold
OL
|
Over-Temperature Response
Hysteretic
|
Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
Switching Frequency (max)
66 kHz
|
Switching Frequency (Avg. 230 VAC)
66 kHz
|
MSL Rating
3
|
|
|
|
Data Sheet
View Data Sheet
|
Output Power (Max) - Open Frame, Univ
10.0 W
|
Output Power (Max) - Open Frame, 230V
12.0 W
|
Voltage - Output (Min)
5 V
|
|
Breakdown Voltage
900 V
|
Voltage - Input (Min)
85 V
|
Voltage - Input (Max)
484 V
|
Protection Features
Open SR FET Detection, Output Overvoltage, Overtemperature
|
Control Features
Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
|
Internal Switch
Yes
|
Product Type
IC
|
IC Package
SO-16B
|
Topology
Flyback
|
Auto-Restart & Overvoltage Response
Auto-restart
|
Auto-Restart Threshold
OL
|
Over-Temperature Response
Hysteretic
|
Temperature - Operating (Min)
-40 °C
|
Temperature - Operating (Max)
150 °C
|
Switching Frequency (max)
66 kHz
|
Switching Frequency (Avg. 230 VAC)
66 kHz
|
MSL Rating
3
|
|
Product Details
The LinkSwitch-XT2SR family dramatically increases the efficiency of auxiliary power supplies used in appliances, consumer products and industrial applications. Ideal for non-isolated designs with a high current, 5 V output, this advanced flyback controller can achieve >90% full load efficiency. High efficiency is maintained over to load range, with >85% efficiency at 100 mW load. No-load consumption is <5 mW.
The default 5 V main output can be adjusted via optional external feedback resistors. Power for start-up and normal operation is supplied from the DRAIN and VOUT pins, eliminating the need for a bias winding and associated
circuitry. The SO-16 package and a low number of external components make the LinkSwitch-XT2SR ICs ideal for compact designs.
Key Features
Ideal for Non-Isolated Applications
- Low component count switcher solution with SR driver and integrated 3.3 V LDO (uVCC)
- High-efficiency across load range
- Accurate CV independent of transformer design or external components
- Feature Code H003 - default 5 V output with no external feedback components
- Feature Code H004 - adjustable output voltage using optional FEEDBACK pin
- Simple two winding transformer
- Compact package reduces PCB area
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 with 5 V output
Advanced Protection / Safety Features
- Hysteretic thermal shutdown (OTP)
- Output OV protection with VOUT pin
- Extended creepage between DRAIN pin and all other pins increases field reliability
- 725 V MOSFET rating series for excellent surge withstand
- 900 V switch rating for industrial applications and extra safety margin
- Extremely low component count enhances reliability
- Allows use of single-sided PCB and full SMD manufacturability
Green Package
- Halogen free and RoHS compliant
