Applications
Isolated current feed-back signal in Switch Mode Power Supplies Motor current load/overload Lighting Switch Controls Ultra-sound
current High resolution sonar current Isolated bi-directional current sensor with full wave bridge rectifier
AS Series Current Sensors are designed as a low cost method of
controlling, monitoring or measuring AC currents. The sensors serve as
feedback elements between the output and pulse control circuitry providing
accurate regulation of switch mode power supplies.
Features
Fully encapsulated for optimal PC board mounting
Frequency range from 20kHz to 200kHz
Primary current rating to 15 Amps
Primary to secondary isolated to 2500 VAC
Meets VDE norms
Optimum performance over designated current and
frequency range
Competitive pricing due to high volume production
Manufactured in ISO-9001 approved facility
AS Series Current Sense Inductors & Transformers
Primary Sense Current
Notes:
1)
L
sec
: Secondary inductance tested at 10kHz and 10mV for 1:50 through 1:500
Prim./Sec. ratios and 1kHz/10mV for Prim./Sec. ratio of 1:750
2)
This nominal termination resistance value will yield approximately 1.0V
of output for each amp of current in a single turn sense line. The output
Voltage/Ampere of these devices can be increased or decreased linearly
over a restricted temperature range by adjusting the terminating resistance.
3)
For Prim./Sec. Ratios of 1:50 through 1:500, the I
sec
value corresponds to a
maximum primary current of 15 Amp-turns rms while the Isec value for the ratio of
1:750 corresponds to a max. primary current of 30 Amp-turns rms.
4)
VS = R t x Is x
Rt (Ohms): Recommended Terminating Resistance
I
s (A): Secondary Current
F (Hz): Frequency
5)
Operating Temperature Range: -40C to +120C
6) Pin 2 is on Center-Tapped (CT) versions only
Electrical Specifications at 25C
(0.375)
9.53
1 2 3
+
_
+
_
4 .0 (0.157)
(0.500)
20.4
(0.803)
12.7
0.60
17.0
(0.669)
(0.024)
(0.250)
1 2 3
TALEMA
ASXXX
5.0
(0.197)
6.35
(0.677)
17.2
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THE TALEMA GROUP World Wide Toroidal Specialists
(07-03) AS Series
1
2F
1
3
1
2
3
4
1 3
2
6
7 5
Electrical Specifications at 25C
Type 1
Type 2
Pins 1 & 2
1.30 (0.051)
Pins 3, 4 &5
1.00 (0.039)
Pins 1, 2, 6 & 7
1.30 (0.051)
Pins 3, 4 &5
0.80 (0.032)
AS Series Current -Sense Inductors & Transformers
Electrical Specifications at 25C
15.25
(0.600)
10.15
(0.400)
5.08
(0.200)
14.50
(0.571)
3 4 5
1 2
18.0
(0.709)
19.60
(0.772)
4.0
(0.157)
12.7
(0.500) 17.8
(0.700)
6.35
(0.250)
6 7
1 2
3 4 5
17.8
(0.700)
12.7
(0.500)
22.9
(0.902)
17.8
(0.700)
4.0
(0.157)
Features
Meets requirements of IEC 950 and VDE norms
Operating Temperature Range: -40C to +120C
UL94, VO recognized materials
Primary to secondary isolated to 4000 VAC
Operating frequency range from 20kHz to 200kHz
Primary current rating to 80 Amps
F
D
7 8
3 4
1 2
H
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0.60 x 0.88 mm
(AS-403 0.75 x 1.10)
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3.5 0.3
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5.0 0.3
0.60 x 0.88 mm
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Talema Electronic 101 West 10th Street Rolla, MO 65401 (573) 364-2422 Fax: (573) 364-5390
www.talema.com Email: sales@talema.com
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