Sumida CMS8D Strobe light transformer Datasheet

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
T1
1:10
VTRANS
C3
56µF
C2
10µF
VCC
12V
VCC
C1
10µF
VTRANS
RVOUT
100k
4, 5
D1
VOUT
300V
1
•
•
60.4k 6, 7
+
C4
100µF
10
43k
DONE
RDCM
LT3750
OFF ON
CHARGE
GATE
M1
SOURCE
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
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Strobe Light Transformer
(CMS8D series)
■Dimensions
■Land pattern
1.4±0.2
(5.7)
1.4±0.2
0.5 ±0.2
6.0 MAX
1.7 ±0.2
CMS8D57
8.5±0.5
1.7 ±0.2
1.7
8.5 ±0.5
1.7
0.9
4.9
9.5
CMS8D75
(0.85)
8.5±0.5
5.7±0.5
9.5
1.7
1.7
1.7
1.7
9.0 Max.
0.5
4.9
0.9
8.0 Max.
9.0 Max.
■Electric characteristics specification (Typical).
Type
Inductance
(µH)(6-1)
100kHz/1V
Inductance
(µH)(3-4)
100kHz/1V
CMS8D57
1100±20%
10.0±20%
CMS8D75
10.5±20%
990(Ref.)
D.C.R.
(Ω)
(6-1)
D.C.R.
(mΩ)
(3-4)
DC superposition
Permission current(3-4)(A) ※1
12.6±20% 55.0±20%
2.5 @charge capacity 400µF Max.
58.0±20%
4.0@charge capacity 600µF Max.
18.7(Ref.)
※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
2
Strobe Light Transformer
(CMS8D series)
■ Recommendation reflow condition
T( ℃)
Heat Endurance Test
300
T( ℃)
260℃
250
300
230℃
200
200
60
150
100
100
50
0
50
0
120
60
180
240
245 ℃
PEAK
230 ℃
250
10
150
0
Temperature Chart
300 T( s)
40s
170±10℃、60 ~ 120s
0
60
180
120
300 T(s)
240
■ Packaging with embossed tape and Reel
H
D
A
E
F
1.
5
4.0
2.0
C
B
G
※ Visit http://www.sumida.com for more information.
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