Y8844_15 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformers

Document 245
Flyback Transformers For ON Semiconductor
NCP1200 Controller
These transformers have been specially developed for
use in flyback power supplies with the ON Semiconduc-
tor NCP1200 PWM Current-Mode Controller. They are
designed for universal input, 85 – 265 Vac.
Coilcraft can also custom engineer a transformer to meet
your specific requirements. For free evaluation samples,
contact Coilcraft or visit www.coilcraft.com.
Leakage

Part  Inductance¹
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)
0.07 (4-1)
80
1500
1 : 0.08 
—
6.5 V, 0.54 A
6.7
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

0.013 (6-1)

0.013 (4-3)
1500
  _{1 : 0.16}4
—
16 V, 4.2 A
52
70 W
Z9260-AL
0.7
with Auxilary winding


0.261 (12-7)
26
2000
  _{1 : 0.16}4 _{1  : 0.15}
0.013 (6-1)
0.013 (4-3)
0.045 (11-8)
16 V, 4.2 A(sec) 54
15 V, 0.2 A (aux)
1. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc
2. Leakage inductance tested at 100 kHz, 0.1 Vrms
3. Isolation tested between primary and secondary on all parts and be-
tween primary and auxiliary on Z9260-AL.
4. Primary to secondary turns ratio specified with secondary windings con-
nected in parallel.
5. Operating temperature range -40°C to +85°C.
6. Electrical specifications at 25°C.
Y8844-AL
A
Y8848-AL
B
Z9007-BL, Z9260-AL
B
C
B
D
4
5
1
8
Bottom view
Packaged
49 per tray
E
1
Y8844-AL
8
4
Pri
Sec
5
1
F
G
Packaged
30 per tray
Y8848-AL
10
5
Pri
Sec
6
1
C
D
For Z9007-BL and
Z9260-AL, secondary
windings to be con-
nected in parallel on
the circuit board.
5
6
Z9007-BL
6
12
4
6
A
Pri
Sec
7
3
1
10
1
Bottom view
Z9260-AL
12
6
1
Pri
4
E (7 places) ₇
11
Sec
H
Aux
3
8
1
1
Bottom view
1
F
G
Packaged 25 per tray
H
C
D
7
A
12
E (9 places)
Y8844-A
Y8848-A
Z9007-B, Z9260-A
A max
0.72
18,3
1.10
27,9
1.45
36,8
B max
0.79
20,1
1.10
27,9
1.45
36,8
C max
0.55
14,0
0.95
24,1
1.17
29,7
D min
0.118
3,0
0.12
3,05
0.12
3,05
E
0.150
3,81
0.200
5,08
0.200
5,08
F
0.600
15,24
0.620
15,75
0.875
22,2
G dia H (1 place)
0.030 inches
0,76 mm
0.044
1,12
0.150 inches
3,81 mm
0.044
1,12
0.150 inches
3,81 mm
F
G
Terminations:  Tin-silver over tin over copper
Document 245  Revised 01/31/05