Transformers and Inductors for Texas Instruments' High Efficiency 60W and 100W Power Supplies

TIDA-00701 and TIDA-00702

Transformer Characteristics

  • Wide input voltage range
  • Compact with high power density
  • Low leakage inductance
  • High efficiency
  • High saturation current
  • Small footprint
  • Reinforced insulation
  • Isolation Voltage: 3750VAC at 1 second
  • Lead free and RoHS compliant
  • Designed to meet IEC60950-1, EN60950-1, UL60950-1/CSA60950-1 and AS/NZS60950.1
  • Operating Temp: -40°C to 125°C

Applications

Process controls

Factory automation

Medical power supplies

Telecommunications

Security systems

Data monitoring and controls

Electrical Properties - Transformers
Order Code Package Size Ui (VAC) UO1 (V) IO1 (A) UAUX (V) L (µH) ISAT (A) NP:NS:NAUX Fswitch (kHz) UT (VAC)
750343004 ER28/14 106-286 24 3.85 18 160 4.7 4 : 1 : 0.78 65 3750
750343068 PQ2625 60-283 24 2.50 18 230 4.4 3.89 : 1 : 0.83 65 3750
Electrical Properties - Inductors
Order Code Package Size LTYP (mH) Turns Ratio IR (A) ISAT (A) RDC (Ω) UT (VAC)
750343062 RM10 0.33 9.38 : 1 - 5 0.195 1500
750343092 Toroid 5.50 1 : 1 2.5 - 0.040 1500
750343094 Toroid 0.11 1 : 1 5.0 - 0.007 600

Reference Design Characteristics

TIDA-00701: 24V, 100W quasi resonant flyback design

TIDA-00702: 24V, 60W quasi-resonant flyback design

Wide 85V-265V input with full power delivery

Meets ENERGY STAR® Rating, 2013 ErP Lot 6, and stringent current THD norms

High efficiency of >89% at 115VAC and >91% at 230VAC for 30%-100% load

Very low standby power of <200mW

Robust output supply protected for overcurrent, short-circuit, overvoltage, and over-temperature conditions

Other Wurth Electronics PNs on App Note

744823220 - WE-CMB Common Mode Power Line Choke