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A Valley Switching Converter (VSC) generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ510 (H or M) is an integrated valley switching pulse width modulation (VS-PWM) controller and SenseFET specifically designed for offline switch-mode power supplies (SMPS) for valley switching with minimal external components. The VS-PWM controller includes an integrated oscillator, under-voltage lockout (UVLO), leading-edge blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry.
Compared with discrete MOSFET and PWM controller solutions, the FSQ510 (H or M) can reduce total cost, component count, size and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a platform for cost-effective designs of a valley switching flyback converters.
FSQ510 Maximum Ratings
Product
Product status
Eco Status
Pricing*
Package type
Leads
Packing method
Package Drawing
Package Marking Convention**
FSQ510
Full Production
RoHS Compliant
$1.02
DIP
7
RAIL
TBD
Line 1:$Y (Fairchild logo) &E&Z (Asm. Plant Code) &3 (3-Digit Date Code) Line 2: FSQ510
FSQ510H
Full Production
RoHS Compliant
$1.02
DIP
8
RAIL
TBD
Line 1:$Y (Fairchild logo) &E&Z (Asm. Plant Code) &3 (3-Digit Date Code) Line 2: FSQ510
FSQ510M
Full Production
RoHS Compliant
$1.11
SOP
7
RAIL
TBD
Line 1:$Y (Fairchild logo) &E&Z (Asm. Plant Code) &3 (3-Digit Date Code) Line 2: FSQ510
FSQ510MX
Full Production
RoHS Compliant
$1.11
SOP
7
TAPE REEL
TBD
Line 1:$Y (Fairchild logo) &E&Z (Asm. Plant Code) &3 (3-Digit Date Code) Line 2: FSQ510
* Fairchild 1,000 piece Budgetary Pricing
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples
Package marking information for product FSQ510 is available. Click here for more information .