Strobe Light Transformer
(CMS8D series)
■
Features
◎
Compact size, surface mount transformer.
◎
High current.
◎
Low leakage Inductance.
◎
Special winding technology for high reliability.
◎
Storage temperature range: -40℃~+85℃
◎
Operating temperature range: -40℃~+85℃ (including coil’s self-heat).
◎
RoHS Compliance.
■
Applications
◎
Step up transformer for strobe light of Digital Single-lens Reflex Camera.
◎
IC control strobe light condenser charge mode compliance.
■
Typical Evaluation Circuit
V
TRANS
C2
10µF
C3
56µF
4, 5
T1
1:10
D1
•
1
V
OUT
300V
+
C4
100µF
V
CC
12V
V
CC
C1
10µF
100k
DONE
V
TRANS
RV
OUT
RDCM
LT3750
GATE
SOURCE
60.4k
6, 7
43k
•
10
OFF ON
CHARGE
M1
GND
RBG
25mΩ
2.49k
33pF
3750 TA02a
D1: DIODES INC. MURS160
M1: PHILIPS PHT6NQ10T
T1: SUMIDA CMS8D75
※
Visit
http://www.sumida.com
for more information
1
Strobe Light Transformer
(CMS8D series)
■Dimensions
CMS8D57
8.5
±
0.5
6.0 M X
A
1.4
±
0.2
■Land
pattern
（
5.7
）
1.4
±
0.2
0.5
±
0.2
1.7
±
0.2
1.7
8.5
±
0.5
1.7
1.7
±
0.2
4.9
9.5
0.9
CMS8D75
9.0 Max.
8.0 Max.
（0.85）
8.5±0.5
5.7±0.5
9.5
0.9
1.7
1.7
4.9
0.5
9.0 Max.
■Electric
characteristics specification (Typical).
Type
Inductance
(µH)(6-1)
100kHz/1V
1100±20%
Inductance
(µH)(3-4)
100kHz/1V
10.0±20%
D.C.R.
(Ω)
(6-1)
D.C.R.
(mΩ)
(3-4)
DC superposition
Permission current(3-4)(A)
※1
2.5 @charge capacity 400µF Max.
CMS8D57
12.6±20% 55.0±20%
CMS8D75
10.5±20%
990(Ref.)
58.0±20%
18.7(Ref.)
4.0@charge capacity 600µF Max.
※1
DC superposition permission current : this indicates the value of current at which the
Inductance decreases to 80% of its initial value at DC superposition
※
Visit
http://www.sumida.com
for more information
1.7
1.7
2
Strobe Light Transformer
(CMS8D series)
■
Recommendation reflow condition
Heat Endurance Test
260℃
230℃
10
60
T( ℃)
300
250
200
150
100
50
0
0
T(
℃)
300
250
200
150
100
50
0
Temperature Chart
245
℃
PEAK
230
℃
40s
170±10℃、60
~
120s
60
120
180
240
300 T( s)
0
60
120
180
240
300 T(s)
■
Packaging with embossed tape and Reel
4.0
2.0
1.
H
F
E
5
C
B
G
※
Visit http://www.sumida.com for more information
.
D
A
3
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