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Normaler Preis $94,999.99
Normaler Preis $99,999.99 Verkaufspreis $94,999.99
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1 $94,999.99 $94,999.99
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25+ $89,999.99 $2,249,999.75
50+ $84,999.99 $4,249,999.50
100+ $74,999.99 $7,499,999.00
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Product attributes Property Value
Manufacturer Silergy Technology
Product Series
Packaging Strip |
Output Isolation Either
Internal Switch(s) No
Voltage - Breakdown -
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) 9.25V ~ 20V
Duty Cycle -
Frequency - Switching 125kHz
Power (Watts) -
Fault Protection Current Limiting, Over Voltage, UVLO
Control Features -
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SOT-23-6
Supplier Device Package -
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Silergy SY22817ABC is a PSR quasi-resonant flyback controller that drives an external switch for isolated AC-DC conversion. It operates at 125kHz from a 9.25V to 20V Vcc supply and includes Current Limiting, Over Voltage, and UVLO protection. Supplied in a SOT-23-6 package, it is rated for -40°C to 105°C ambient temperatures.

  • PSR quasi-resonant flyback control reduces secondary-side sensing components.
  • External-switch architecture offers design flexibility for varied power levels.
  • 125kHz switching frequency supports compact flyback designs.
  • Current Limiting, Over Voltage, and UVLO protection enhance reliability.
  • Compact SOT-23-6 package suits space-constrained layouts.

PSR Quasi-Resonant Flyback Adapters

As a primary-side regulation quasi-resonant flyback controller driving an external switch, the SY22817ABC simplifies isolated adapter designs by reducing secondary-side sensing components.

Compact Chargers

The 125kHz switching frequency and SOT-23-6 package enable compact flyback charger designs with a 9.25V to 20V Vcc supply.

Consumer Power Supplies

Current Limiting, Over Voltage, and UVLO protection safeguard the converter across a -40°C to 105°C ambient range.

Bias and Auxiliary Supplies

The small SOT-23-6 footprint and external-switch flexibility suit space-constrained isolated bias supply designs.

Q: What topology does the SY22817ABC use?
A: It is a PSR quasi-resonant flyback controller.
Q: Does it have an integrated switch?
A: No, it drives an external switch.
Q: What is the Vcc supply range?
A: 9.25V to 20V.
Q: What switching frequency does it use?
A: 125kHz.
Q: What protections are included?
A: Current Limiting, Over Voltage, and UVLO.
Base Product Number : SY22817ABC
AC-DC Converter External Switch Flyback Controller Isolated Offline Switcher Power Conversion PSR Quasi-Resonant SOT-23-6
Q: What topology does the SY22817ABC use?
A: It is a PSR quasi-resonant flyback controller.
Q: Does it have an integrated switch?
A: No, it drives an external switch.
Q: What is the Vcc supply range?
A: 9.25V to 20V.
Q: What switching frequency does it use?
A: 125kHz.
Q: What protections are included?
A: Current Limiting, Over Voltage, and UVLO.