COILCRAFT Q4435-BL

Document 183-1
Magnetics for LM258X Flyback Regulator
These standard flyback regulator transformers are designed for use with National Semiconductor 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
Input Inductance Inductance product Leakage
DCR (Ohms)
voltage at 0 Adc
at I pk
max
Inductance1
(V)
±15% (µH) min (µH) (Vµsec) max (µH)
pri
sec
Ref.
number
Part
number
T1 (SM)
T1 (PC)
T2 (SM)
Q4435-BL
Q4434-BL
Q4436-BL
4–6
4–6
4–6
22
22
22
19.0
19.8
17.6
166.5
162.0
166.5
0.7
2.0
0.5
0.020
0.028
0.025
T2 (PC)
Q4337-BL
4–6
22
19.8
162.0
2.0
0.030
T3 (PC)
Q4343-BL 18 – 36
85
76.5
364.5
3.5
0.150
T4 (PC)
Q4344-BL 18 – 36
85
76.5
364.5
3.5
0.145
T5 (SM)
Q4437-BL 18 – 36
55
47.3
299.7
2.0
0.110
T5 (PC)
Q4338-BL 18 – 36
66
59.4
499.5
3.5
0.090
T6 (SM)
Q4438-BL 18 – 36
65
57.0
299.7
3.0
0.065
T6 (PC)
Q4339-BL 18 – 36
66
59.4
499.5
3.0
0.090
T7 (SM)
T7 (PC)
S6057-AL
S6000-AL
47
47
40.0
40.0
233.1
212.6
2.0
2.0
0.065
0.065
4–6
4–6
1. Leakage inductance measured across the primary at 0.10 Vrms, 100 kHz.
2. DC current at which the primary inductance is measured.
3. Electrical specifications at 25° C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Turns ratio
pri : sec
0.025
0.028
0.23 (10-11)
0.25 (9-8)
0.32 (8-7)
0.32 (6-5)
0.011 (10-9)
0.011 (7-6)
0.20 (10-9)
0.20 (7-6)
0.03 (4-5)
0.035 (10-11)
0.30 (9-8)
0.32 (4-5)
0.039 (8-7)
0.58 (6-5)
0.60 (3-4)
0.15 (10-11)
0.15 (9-8)
0.20 (8-7)
0.24 (5-6)
0.065
0.042
1:1
1:1
1 : 2.5
1 : 2.5
1 : 2.5
1 : 2.5
1 : 0.8
1 : 0.8
1 : 0.8
1 : 0.8
1 : 0.35
1 : 0.5
1 : 1.167
1 : 1.167
1 : 0.5
1 : 1.167
1 : 1.167
1 : 1.2
1 : 1.2
1 : 1.2
1 : 1.2
1 :1
1:1
Output
5 V, 1.6 A
5 V, 1.6 A
12 V, 0.35 A
12 V, 0.35 A
12 V, 0.35 A
12 V, 0.35 A
12 V, 1.4 A
12 V, 1.4 A
12 V, 0.75 A
12 V, 0.75 A
5 V, 3.0 A
5 V, 1.8 A
12 V, 0.25 A
12 V, 0.25 A
5 V, 1.8 A
12 V, 0.25 A
12 V, 0.25 A
12 V, 0.63 A
12 V, 0.63 A
12 V, 0.63 A
12 V, 0.63 A
5 V, 0.9 A
5 V, 0.9 A
Ipk2
(A)
4.85
5.0
5.0
5.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
Core material Ferrite
Ambient temperature –40°C to +85°C
Weight
Q4337-BL:
Q4338-BL:
Q4339-BL:
Q4343-BL:
Q4344-BL:
Q4434-BL:
11.4 g
11.5 g
11.6 g
25.1 g
23.1 g
11.5 g
Q4435-BL:
Q4436-BL:
Q4437-BL:
Q4438-BL:
S6000-AL:
S6057-AL:
9.0 g
8.7 g
8.2 g
8.6 g
10.6 g
8.2 g
Storage temperature Component: –40°C to +85°C.
Packaging: –40°C to +80°C
Resistance to soldering heat (SM parts) Max three 40 second
reflows at +260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Mean Time Between Failures (MTBF) 26,315,789 hours
PCB washing Only pure water or alcohol recommended
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2009
Document 183-1
Revised 10/31/08
Document 183-2
Magnetics for LM258X Flyback Regulator
Schematics – Surface Mount (SM)
T1
T2
T5
T6
Q4435-BL
Q4436-BL
Q4437-BL
Q4438-BL
10
3
10
3
12 V, 0.35 A
5 V, 1.6 A
11
2
10
3
11
9
2
12 V, 0.63 A
5 V, 1.8 A
11
9
2
12 V, 0.35 A
11
9
2
12 V, 0.63 A
12 V, 0.25 A
8
8
8
4
T7
12 V, 0.25 A
S6057-AL
5
10
3
10
3
5 V, 0.9 A
11
2
Schematics – Leaded (PC)
T1
T2
T3
T4
Q4434-BL
Q4337-BL
Q4343-BL
Q4344-BL
7
2
7
2
12 V, 0.35 A
5 V, 1.6 A
8
1
10
1
8
6
1
1
12 V, 1.4 A
9
7
2
12 V, 0.35 A
12 V, 0.75 A
2
9
7
12 V, 0.75 A
12 V, 1.4 A
5
10
6
4
6
5 V, 3.0 A
T6
T5
Q4339-BL
Q4437-BL
2
7
2
1
8
6
12 V, 0.25 A
5
3
Q4434-BL
7
2
12 V, 0.63 A
5 V, 1.8 A
1
5
T7
8
6
7
5 V, 0.9 A
1
8
12 V, 0.63 A
5
12 V, 0.25 A
4
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2009
Document 183-2
Revised 10/31/08
Document 183-3
Magnetics for LM258X Flyback Regulator
Surface Mount (Q4435-BL, Q4436-BL, Q4437-BL, Q4438-BL, S6057-AL)
1.00
max
25,4
1
0.60
max
15,24
0.114 × 0.020
2,90 × 0,51
12
6
0.004/0,10
0.030
0,76
1
0.75
max
19,05
0.615
15,62
0.843
21,41
0.610
15,49
0.145
3,68
Top view
7
0.150
3,81
0.150
3,81
0.100
2,54
0.100
2,54
Recommended
Land Pattern
0.733
18,62
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Packaged 81 parts per tray
Leaded – T1, T2, T5, T6, T7 (Q4434-BL, Q4337-BL, Q4338-BL, Q4339-BL, S6000-AL)
0.950
max
24,13
Bottom view
1
5
4
0.700
max
17,78
0.514
13,06
0.15
(1 place)
3,81
0.825
max
20,96
1
0.20
(5 places)
5,08
8
0.060
1,52
0.025 × 0.025
0,635 × 0,635
0.180
max
4,57
Recommended
Board Layout
Standoffs
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Packaged 49 parts per tray
Leaded – T3, T4 (Q4343-BL, Q4344-BL)
1.10
max
27,94
Bottom view
5
0.0346
0,879
0.620
15,75
1
6
0.15
(1 place)
3,81
0.950
max
24,13
1.10
max
27,94
1
10
0.20
(7 places)
5,08
0.060
1,52
0.180
max
4,57
Standoffs
Recommended
Board Layout
Terminations RoHS tin-silver over tin over copper.
Packaged 30 parts per tray
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2009
Document 183-3
Revised 10/31/08