Document 183-1
Magnetics for LM258x Flyback Regulator
These standard flyback regulator transformers are designed
for us...
Document 183-1
Magnetics for LM258x Flyback Regulator
These standard flyback regulator transformers are designed
for use with Texas Instruments LM2585, LM2586, LM2587 and LM2588 SIMPLE SWITCHER® switching regulators.
They are available in surface mount and through hole configurations. All feature 500 V isolation between windings and a variety of available turns ratios.
Volt-time
Ref.
Part
Input
voltage
Inadtu0ctAadncc e IndautcIt pakn ce prmodauxc t InLdeuacktaagnec e1 D CR (Oh ms)
number number (V) ±15% (µH) min (µH) (Vµsec) max (µH) pri sec
Turns ratio
I pk2
pri : sec Output
(A)
T1 (SM) Q4435-BL 4 – 6
22
19.0 166.5 0.7 0.020 0.025
1 : 1 5 V, 1.6 A 4.85
T1 (PC) Q4434-BL 4 – 6
22
19.8 162.0 2.0 0.028 0.028
1 : 1 5 V, 1.6 A 5.0
T2 (SM) Q4436-BL 4 – 6
22
17.6 166.5 0.5 0.025 0.23 (10-11) 1 : 2.5 12 V, 0.35 A 5.0
0.25 (9-8)
1 : 2.5 12 V, ...