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FSL538: High Performance 800 V Off-line Switcher with HV Startup and SenseFET

Datasheet: High Performance Integrated Off-line Switcher with HV Startup and SENSEFET®
Rev. 2 (1196kB)
Product Overview
»View Material Composition
» Product Change Notification
The 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-protections circuitry as well. Compared with a discrete MOSFET and PWM controller solution, the FSL5x8A/H allows to reduce total cost, component count, size, and weight, while simultaneously increase efficiency, productivity, and system reliability. This device provides a basic platform for cost-effective design of both isolated and non-isolated Flyback converters.
Features   Benefits
     
  • Rugged 800V FET with 3.8 Ω Typ.RDS(on) with Built-in HV current source for start up
 
  • Easy and Rugged design with minimal external components
  • Fine-tunable Skip Mode Operation
 
  • High Efficiency across all operating conditions
  • Integrated Line Compensation
 
  • Constant Maximum power Limitation
  • Line Brown-in, Brown-out Function
 
  • Robust design in case of poor Ac grid network
  • Line Over-voltage Protection (LOVP)
 
  • Robust design in case of poor Ac grid network
  • Fsw options: 100 & 130 kHz
 
  • Allows design trade-offs between space and efficiency
  • Seamless implementation of isolated and non-isolated topologies
 
  • Design flexibility
  • Peak Current: FSL538A = 860mA and FSL538H = 660 mA
 
  • Design versatility
Applications   End Products
  • Auxiliary & Stand-by Power Supply
  • Major Home Appliances power supplies
  • Low to medium Power Chargers & Adapters
 
  • White Goods (Air-con, Fridges, Washing machines, ....)
  • E-Meters
  • Industrial equipments
  • Consumer Equipment Power Supply
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
FSL538AFLYGEVB Active
FSL538AFLYGEVB: High Performance 800 V Off-line Switcher with HV Startup and SenseFET Evaluation Board
FSL538HFLYGEVB Active
Pb-free
FSL538HFLYGEVB: High Performance 800 V Off-line Switcher with HV Startup and SenseFET Evaluation Board
Avnet (2020-08-19) : 2
Avnet (2020-08-19) : 2
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FSL538APG Active
Pb-free
Halide free
FSL538, 800V FET Switcher -4.3 Ohm/100 kHz - DIP-7 PDIP-7 626A-01 NA Tube 3000 $0.7066
FSL538HPG Active
Pb-free
Halide free
FSL538, 800V FET Switcher -4.3 Ohm/130 kHz - DIP-7 PDIP-7 626A-01 NA Tube 3000 $0.7066
Market Leadtime (weeks) : 4 to 8
Avnet   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : 4 to 8
ON Semiconductor   (2020-09-02 00:00) : 6,000
Avnet   (2020-08-19 00:00) : >1K

Product
Description
Pricing ($/Unit)
Compliance
Status
Control Mode
fsw Typ (kHz)
fJitter Typ (%)
Stand-by Mode
RDS(ON) Typ (Ω)
V(BR)DSS Max (V)
IPeak (mA)
HV Start-up Min (V)
DSS (mA)
UVLO
Short Circuit Protection
Over Power Compensation
Brown-out
Latch
Package Type
FSL538APG  
 $0.7066 
Pb
H
 Active   
Current Mode
100
Yes
Yes
3.8
800
860
Yes
4
8
Yes
Yes
Yes
No
PDIP-7
FSL538HPG  
 $0.7066 
Pb
H
 Active   
Current Mode
130
Yes
Yes
3.8
800
660
Yes
4
8
Yes
Yes
Yes
No
PDIP-7
Case Outlines
626A-01   
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