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FSL5x8A/H High Performance 800 V Off-Line Switcher with HV Startup and SenseFET
onsemi's FSL5x8A/H PWM power switch provides a base platform for cost-effective design of isolated and non-isolated flyback converters
onsemi's FSL5x8A/H is an integrated peak-current-mode controlled pulse width modulation (PWM) power switch specifically designed for off-line switch-mode power supplies. The PWM controller includes an advanced soft-start, frequency hopping, optimized gate driver, internal transconductance amplifier, temperature-compensated precise current source for loop compensation, and enhanced self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSL5x8A/H allows users to reduce total cost, component count, size, and weight while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for the cost-effective design of both isolated and non-isolated flyback converters.
- Rugged 800 V FET with 3.8 Ω or 6.3 Ω typical RDS(ON) with built-in HV current source for start-up
- Fine-tunable skip mode operation
- Integrated line compensation
- Line brown-in, brown-out function
- Line overvoltage protection (LOVP)
- FSW options: 100 kHz and 130 kHz
- Seamless implementation of isolated and non-isolated topologies
- Peak current:
- FSL538A = 860 mA and FSL538H = 660 mA
- FSL518A = 610 mA and FSL518H = 460 mA
- Easy and rugged design with minimal external components
- High efficiency across all operating conditions
- Constant maximum power limitation
- Robust design in case of poor AC grid network
- Allows design trade-offs between space and efficiency
- Design flexibility
- Design versatility
- Auxiliary and standby power supplies
- Major home appliances power supplies
- Low to medium power chargers and adapters
- White goods (air conditioners, refrigerators, washing machines, and others)
- E-meters
- Industrial equipment
- Consumer equipment power supplies
FSL5x8A/H High Performance 800 V Off-line Switcher with HV Startup and SenseFET
| Image | Manufacturer Part Number | Description | Fault Protection | Control Features | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|
 |  | FSL518APG | IC OFFLINE SWITCH FLYBACK 7DIP | Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage | EN, Soft Start | 996 - Immediate | $1.43 | View Details |
| | FSL518HPG | IC OFFLINE SWITCH FLYBACK 7DIP | Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage | EN, Soft Start | 0 - Immediate 17982 - Marketplace | $1.03 | View Details |
| | FSL538APG | IC OFFLINE SWITCH FLYBACK 7DIP | Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage | EN, Soft Start | 0 - Immediate | $0.70 | View Details |
| | FSL538HPG | IC OFFLINE SWITCH FLYBACK 7DIP | Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage | EN, Soft Start | 0 - Immediate 14800 - Marketplace | $0.88 | View Details |
Evaluation Boards
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | FSL518AFLYGEVB | EVAL BOARD FOR FSL518A | 0 - Immediate | See Page for Pricing | View Details |
|  | FSL538AFLYGEVB | EVAL BOARD FOR FSL538A | 0 - Immediate | See Page for Pricing | View Details |
|  | FSL538HFLYGEVB | EVAL BOARD FOR FSL538H | 0 - Immediate | See Page for Pricing | View Details |
