MICROSPIRE
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73
8.4 14.4
3.2
8.4
CT 91 xxx
xR yywwP
1
2
3
4
Z load
Electrical Data
(
25°C
)
ID Code Turn ratio
DCR
1-2
mΩ
DCR
3-4
Ω ±15%
L
3-4
mH ±15%
Frequency range
triangle wave
Ipk = I
DC
+∆I/2
max
Z Load
1% ¼W
Insulation
500VDC
CT91 050 231 WR
1/50 <2 0.95 0.4 22kHz to 500kHz 10 6.81Ω >1GΩ
CT91 075 231 WR
1/75 <2 2.15 0.9 15kHz to 300kHz 10 10.2Ω >1GΩ
CT91 100 231 WR
1/100 <2 3.70 1.6 9kHz to 200kHz 10 13.7Ω >1GΩ
CT91 200 231 WR
1/200 <2 14.6 6.4 6kHz to 70kHz 10 27.4Ω >1GΩ
• Vout/Ipk ratio
:
1
V
/
8
A
• Global accuracy
±
5
%
on
E96
series load resistor
• Low profile and light
• Materials meet
UL94V-0
rating
• Applied standards
:
ESCC-3201
generic (
including
MIL-STD-202
)
/
ECSS-Q-70-02
• Frequency range
6
kHz
to
500
kHz
triangle wave
• Operating temperature range
:
–
55
°C
to
+
125
°C
• Suited for IR and vapor reflow soldering
• Weight
:
2
grams
To Order
CT91 ### 231 WR
CT91 ### 231 WR
Range Turn ratio Range Gull wing highrel
Notes
Typical performances at
+
25
°C
Storage Temperature
–
55
°C
to
+
140
°C
Application
Current detection/measurement for
PWM
control
(
Isense
) in High-Rel.
SMPS
I
I
pk
I
DC
α
T T
∆I
10.7
MAX
13.4 MAX
0.9 to 1.3
1.5 x
0.28
MAX
10.6 MAX
5.8
MAX
5.8
1
2
4
3
PCB Layout
(suggested)
yyww :
Date code
Connections
Dimensions
(mm, top view)
Marking
Current sense Transformer, up to
10Apk
-
CT91 xxx 231 WR
Tape and Reel:
700
units per reel of diameter
330
mm
Packaging
F: 11.5
P1: 16
Po: 4.0
W: 24.0
So:
none
F
WSo
P1 Po
Unreeling
High Grade Technologies
Power Magnetics / Current Transformers
Specifications may change without prior notice - Revised 03/14