FSL538: High Performance 800 V Off-line Switcher with HV Startup and SenseFET
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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.
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Technical Documentation & Design Resources
| Design & Development Tools (1) | Package Drawings (1) |
| Simulation Models (1) | Evaluation Board Documents (10) |
| Data Sheets (1) |
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description | Action | |
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| FSL538AFLYGEVB | Active |
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FSL538AFLYGEVB: High Performance 800 V Off-line Switcher with HV Startup and SenseFET Evaluation Board | ||
| FSL538HFLYGEVB | Active |
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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 |
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Availability & Samples
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Specifications
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Interactive Block Diagram
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Case Outline |
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| FSL538APG | Active |
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FSL538, 800V FET Switcher -4.3 Ohm/100 kHz - DIP-7 | PDIP-7 | 626A-01 | NA | Tube | 3000 | $0.7066 | |||||||||
| FSL538HPG | Active |
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FSL538, 800V FET Switcher -4.3 Ohm/130 kHz - DIP-7 | PDIP-7 | 626A-01 | NA | Tube | 3000 | $0.7066 | |||||||||
| Market Leadtime (weeks) | : | Contact Factory |
| Avnet (2020-08-19 00:00) | : | >1K |
| Market Leadtime (weeks) | : | 8 to 12 |
| Avnet (2020-08-19 00:00) | : | >1K |
Product
Description
Pricing ($/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
A
H
P
Active
Current Mode
100
Yes
Yes
3.8
800
860
Yes
4
8
Yes
Yes
Yes
No
PDIP-7
FSL538HPG
$0.7066
Pb
A
H
P
Active
Current Mode
130
Yes
Yes
3.8
800
660
Yes
4
8
Yes
Yes
Yes
No
PDIP-7
Case Outlines
626A-01
Application
Diagram - Block
| Support |