Datasheet Y8844 (Coilcraft)

Document 245
Flyback Transformers For ON Semiconductor NCP1200 Controller
These transformers have been specially developed for Coilcraft can also custom engineer a transformer to meet use in flyback power supplies with the ON Semiconduc- your specific requirements. For free evaluation samples, tor NCP1200 PWM Current-Mode Controller. They are contact Coilcraft or visit
www.coilcraft.com
. designed for universal input, 85 – 265 Vac.
Leakage Part Inductance
1
DCR inductance
2
Isolation
3
Turns ratio Weight Application number ±10% (mH) max (Ohms) max (µH) (Vrms) pri : sec pri : aux Output (g)
3.5 W Y8844-AL 2.9 4.25 (8-5) 80 1500 1
:
0.08

— 6.5 V, 0.54 A 6.7 0.07 (4-1) 10 W Y8848-AL 1.8 1.77 (10-6) 60 2000 1
:
0.1 — 12 V, 0.83 A 16 0.038 (5-1) 70 W Z9007-BL 0.7 0.261 (12-7) 16 1500 1
:
0.164 — 16 V, 4.2 A 52 0.013 (6-1) 0.013 (4-3) 70 W Z9260-AL 0.7 0.261 (12-7) 26 2000 1
:
0.164 1
:
0.15 16 V, 4.2 A(sec) 54 with Auxilary winding 0.013 (6-1) 15 V, 0.2 A (aux) 0.013 (4-3) 0.045 (11-8) 1. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc 4. Primary to secondary turns ratio specified with secondary windings con- 2. Leakage inductance tested at 100 kHz, 0.1 Vrms nected in parallel. 3. Isolation tested between primary and secondary on all parts and be- 5. Operating temperature range -40°C to +85°C. tween primary and auxiliary on Z9260-AL. 6. Electrical specifications at 25°C.
Y8844-AL Y8848-AL Z9007-BL, Z9260-AL
A B B C C For Z9007-BL and C B Z9260-AL, secondary D windings to be con- nected in parallel on the circuit board. 4 5 D
Z9007-BL
D 5 6 6 1 8 12 4 6 7
Bottom view
A Pri Sec 7 3 1 Packaged Packaged 10 1 A 49 per tray E 30 per tray
Bottom view Z9260-AL
1
Y8844-AL Y8848-AL
12 6 1 12 8 4 10 5 1 Pri 4 E (7 places) 7 Pri Sec Sec
Bottom view
Pri Sec 11 5 1 F 6 1 Aux 3 G H 1 8 1 E (9 places) Packaged 25 per tray F G H
A max B max C max D min E F G dia H (1 place)
Y8844-A 0.72 0.79 0.55 0.118 0.150 0.600 0.030 inches 18,3 20,1 14,0 3,0 3,81 15,24 0,76 mm F G Y8848-A 1.10 1.10 0.95 0.12 0.200 0.620 0.044 0.150 inches 27,9 27,9 24,1 3,05 5,08 15,75 1,12 3,81 mm Z9007-B, Z9260-A 1.45 1.45 1.17 0.12 0.200 0.875 0.044 0.150 inches 36,8 36,8 29,7 3,05 5,08 22,2 1,12 3,81 mm
Terminations:
Tin-silver over tin over copper Document 245 Revised 01/31/05