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FAN6300AMY

Public Made by Adom

by adom

onsemi AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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FAN6300AMY

onsemi · AC-DC Controllers And Regulators · SOIC-8

FAN6300AMY from onsemi, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 DET input Auxiliary-winding sense input through a resistor divider for zero-current detection, valley-voltage switching and output OVP (2.5 V reference), with the DET pin clamped to 0.3 V when VAUX is negative.
2 FB input Voltage-loop feedback input with a 5 kΩ equivalent input impedance, which performs open-loop protection when FB exceeds about 4.2 V for more than 55 ms.
3 CS input Over-current comparator input that senses the switching current through a sense resistor for cycle-by-cycle current limiting, clamped to about 5.0 V when the pin is floating.
4 GND power_in Power and signal ground; a 0.1 µF decoupling capacitor between VDD and GND is recommended.
5 GATE output Totem-pole output that drives the external power MOSFET, with the gate output clamped to 18 V.
6 VDD power_in Power supply with turn-on and turn-off thresholds of 16 V and 10 V, a startup current below 20 µA and an operating current below 4.5 mA.
7 NC unconnected No connect.
8 HV power_in High-voltage startup pin, rated to 500 V absolute maximum with a minimum startup voltage of 50 V, typically fed from the line through an external diode and resistor (1N4007 and 100 kΩ recommended).

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Power Management (PMIC)
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Ambient Temperature TA -40 125 °C 6
DC Supply Voltage VDD 30 V 6
HV pin voltage VHV 500 V 6
GATE voltage VH -0.3 25 V 6
VFB, VCS, VDET voltage VL -0.3 7 V 6
Power Dissipation PD 400 mW 6
Operating Junction Temperature TJ 150 °C 6
Storage Temperature Range TSTG -55 150 °C 6
Lead Temperature (Soldering) TL 270 °C Soldering 10 seconds 6
Continuously Operating Voltage VOP 25 V 7
Turn-On Threshold Voltage VDD-ON 15 16 17 V 7
PWM Off Threshold Voltage VDD-PWM-OFF 9 10 11 V 7
Turn-Off Threshold Voltage VDD-OFF 7 8 9 V 7
Startup Current IDD-ST 10 20 µA VDD=VDD-ON -0.16 V, GATE Open 7
Operating Current IDD-OP 4.5 5.5 mA VDD=15 V, fS=60 KHz, CL=2 nF 7
Green-Mode Operating Supply Current (Average) IDD-GREEN 3.5 mA VDD=15 V, fS=2 KHz, CL=2 nF 7
Operating Current at PWM-Off Phase IDD-PWM-OFF 70 80 90 µA VDD=VDD-PWM-OFF-0.5 V 7
VDD Over-Voltage Protection (Latch-Off) VDD-OVP 26 27 28 V 7
VDD OVP Debounce Time tVDD-OVP 100 150 200 µs 7
VDD OVP Latch-Up Holding Current IDD-LATCH 42 µA VDD=5 V 7
Minimum Startup Voltage on Pin HV VHV-MIN 50 V 7
Supply Current Drawn from Pin HV IHV 1.5 4 mA VAC=90 V(VDC=120V), VDD=0 V 7
Leakage Current After Startup IHV-LC 1 20 µA HV=500 V, VDD=VDD-OFF +1 V 7
Input Impedance ZFB 3 5 7 KΩ 7
Bias Current IOZ 1.2 2 mA FB=VOZ 7
Zero Duty-Cycle Input Voltage VOZ 0.8 1 1.2 V 7
Open Loop Protection Threshold Voltage VFB-OLP 3.9 4.2 4.5 V 7
Debounce Time for Open-Loop/Overload Protection tD-OLP 46 52 62 ms 7
Comparator Reference Voltage VDET-OVP 2.45 2.5 2.55 V 8
Open-Loop Gain Av 60 dB 8
Output High Voltage VV-HIGH 4.5 V 8
Output Low Voltage VV-LOW 0.5 V 8
Output OVP (Latched) Debounce Time tDET-OVP 100 150 200 µs 8
Maximum Source Current IDET-SOURCE 1 mA VDET=0 V 8
Upper Clamp Voltage VDET-HIGH 5 V IDET=-1 mA 8
Lower Clamp Voltage VDET-LOW 0.1 0.3 V IDET=1 mA 8
Delay Time from Valley-Signal Detected to Output Turn-On tVALLEY-DELAY 200 ns 8
Maximum On-Time tON-MAX 38 45 54 µs 8
Minimum Off-Time (FAN6300A) tOFF-MIN 8 µs VFB≧VN 8
Beginning of Green-On Mode at FB Voltage Level VN 1.95 2.1 2.25 V 8
Beginning of Green-Off Mode at FB Voltage Level VG 1 1.2 1.4 V 8
Green-Off Mode VFB Hysteresis Voltage ∆VFBG 0.05 0.1 0.2 V 8
Start Timer (Time-Out Timer) tSTARTER 1.8 2.1 2.4 ms VFB<VG 8
Start Timer (Time-Out Timer) tSTARTER 25 30 45 µs VFB>VFB-OLP 8
Output Voltage Low VOL 1.5 V VDD=15 V, IO=150 mA 8
Output Voltage High VOH 7.5 V VDD=12 V, IO=150 mA 8
Rising Time tR 145 200 ns 8
Falling Time tF 55 120 ns 8
Gate Output Clamping Voltage VCLAMP 16.7 18 19.3 V 8
Delay to Output tPD 20 150 200 ns 9
Limit Voltage on CS Pin for Over-Power Compensation VLIMIT 0.82 0.85 0.88 V IDET < 74.41 µA 9
Limit Voltage on CS Pin for Over-Power Compensation VLIMIT 0.38 0.415 0.45 V IDET=550 µA 9
Leading-Edge-Blanking Time (MOS Turns ON) tBNK 525 625 725 ns 9
VCS Clamped High Voltage once CS Pin Floating VCS-H 4.5 5 V CS Pin Floating 9
Leading-Edge-Blanking Time for DET when PWM MOS Turns Off (FAN6300A) tOFF-BNK 4 µs 8
Time-Out after tOFF-MIN (FAN6300A) tTIME-OUT 9 µs 8
Minimum Off-Time (FAN6300A) tOFF-MIN 38 µs VFB=VG 8
Slope Compensation VSLOPE 0.3 V tON=45 µs 9
Slope Compensation VSLOPE 0.1 V tON=0 µs 9
Internal Threshold Temperature for OTP TOTP 140 °C 9

CAD (KiCad official)

  • Symbol: FAN6300AMY
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: fan6300amy-etched.step / fan6300amy-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fan6300amy.step / fan6300amy.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (15 pp, sha256 23d46c29c34492be, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF