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GA3502 Flyback Transformer

for Maxim's PFC LED Driver

RoHS compliant
  • Featured on Maxim MAX16801 demonstration board
  • Designed for PWM Dimming of High-Brightness LEDs
Buy Now:
Count Unit price
1 $3.25
240 $2.83
480 $2.60
1200 $2.14
2400 $1.83
4800 $1.68

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
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Typical Application

Works with Maxim MAX16801

Input Voltage Output 1 Power Fsw
Sec Bias
400 V 110 V , 0.4 A 18 V , 0.02 A 44 W 250 kHz

Specifications

Electrical specifications at 25°C.

Part number Inductance
at 0A (µH) 2
(Tolerance: ±10%)
Inductance
min at   0.75 A (µH)
DCR max (Ω) Leakage
Inductance
max (µH) 3
Turns Ratio Isolation
Voltage (Vrms) 4
Pri Sec Bias Pri : Sec : Bias
GA3502-BL_ 800 720 1.283 0.361 0.146 6.60 1 : 0.35 : 0.06 1500
Notes
  1. Output is for the secondary. Bias winding output is 18 V, 20 mA.
  2. Inductance is for the primary (pins 1 – 3), measured at 250 kHz, 0.3 Vrms.
  3. Leakage inductance is for the primary winding (pins 1 – 3) with the secondary winding shorted.
  4. 1500 Vrms, one minuteisolation, primary and bias windings to secondary winding

Termination:

  • RoHS-compliant. 260°C compatible. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations. Other terminations available at additional cost.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +125°C
Storage temperature range:
Component: –40°C to +125°C.
Tray packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

ga3502s.gif

Physical characteristics

ga3502d.gif


dims_inches_mm-(5).gif

General specification

Core Material:
Ferrite
Weight:
21.3 g
Packaging:
24 parts per tray

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Only pure water or alcohol recommended.