IXYS AXC-102

AXC-102
ACTIVE FILTER FOR RIPPLE ATTENUATION 20A
PRELIMINARY
Features :
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High Efficiency.
Superior Performance at Low Frequencies.
Output Impedance Less Than 5mΩ.
Retriggerable / Non-retriggerable Circuit Breaker.
Shut Down.
Sense Input Control.
Status Output.
Wide Operation Range 0-28V.
Programmable Voltage Drop.
? Compact Size.
Product Description
The AXC-102 is a power filter which provide high attenuation starting at extremely low frequencies
([email protected]). The device is designed for positive supply of 0 to 28 Volts and up to 20Amp load. The
output voltage tracks the DC input voltage with 0.6V drop (adjustable). Full performance is kept for input
ripple of up to 0.8 Volts p-p. Exceptional effort has been made to maintain low output impedance (less than
5mΩ at audio frequencies). The AXC filters are designed to meet the most stringent noise requirements in
electronic equipment, laboratory power supplies, audio equipment, etc. Sense input provides a constant DC
voltage drop across the AXC102. A programmable current circuit breaker shuts down the device when the
current trough the module exceeds the rated current (programmable). The circuit breaker has two modes of
operation: Retriggerable and Non-retriggerable mode. A CBS (Circuit Breaker Status) indicates when the
device is in disconnected mode. A low level voltage (less than 1V), at SD (Shut Down) input, shuts down
the output voltage and the quiescent current drops below 2.5mA. This feature fits power management, as
well as battery power saving applications.
Applications
Fig.1 - Typical Application
+2.5V
(OPTION) Bias
Voltage
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Laboratory Power Supply.
Mixed Signal Power Splitter.
Automotive Power Filter.
Professional Audio Systems.
Power Management.
7
+OUT
+S
NC
1
VD
PIN
NC
NC
9
4
3
VEXT RTG CBS
AXC102
POUT
SNS
C1
10uF
Lab. P.S.
SD
8
NC
RET
5
CL
2
NC
10
Vo=0V - 28V
6
C2
470uF
Load
-S
-OUT
Ultra Low Noise, Lab. Power Supply
September 98
Page 1 of 6
98002-05-003-02.doc
IXYS Corporation 3540 Bassett Street, Santa Clara, CA 95054 TEL:408-982-0700 FAX:408-496-0670
IXYS Semiconductor, GmbH. Edisonstr. 15 D-68623 Lampertheim, Germany TEL:+49-6206-503-0 FAX:+49-6206-503-627
AXC-102
PRELIMINARY
Absolute Maximum Ratings
Parameter
Supply Voltage
Maximum Output Current
SD Current
SD Voltage
CL Current
CL Voltage
VEXT Current
VEXT Voltage
CBS,RTG Current
CBS,RTG Voltage
VD Current
VD Voltage
SNS Current
SNS Voltage
Storage Temperature
Operating Temperature
Conditions
Less than 100uSec
Min
Max
Units
0
0
0
-2
-1
-10
-15
2.3
POUT-1
-30
-30
30
100
10
5
1
10
25
2.7
1
30
1
PIN+1
10
POUT+1
110
85
Vdc
A
mA
V
mA
V
mA
V
mA
V
mA
V
mA
V
°C
°C
Typ
Max
Units
28
28
20
26
2.25
2.6
26
0.62
0.68
0.62
1
2.5
100
2.5
1
20
20
22
5
V
V
A
mA
mA
V
mA
V
V
V
V
mA
mSec
V
V
uA
uA
A
A
-10
PIN-1
DC Electrical Specification (-30°C ≤ TA ≤ +85°C)
Parameter
Operating Voltage
Operation Current
Quiescent Current
VEXT Voltage
VEXT Current
Voltage Drop
SD OFF Position Voltage
SD OFF Position Current
Retriggerable Time
CBS Output Voltage ON Position
CBS Output Voltage Off Position
CBS Output Current ON Position
CBS Output Current Off Position
Circuit Breaker Off Current
Conditions
Min
VEXT not connected
VEXT connected to external 2.5V
4
0
0
Normal Operation
Shut Down Mode
22
2.5
10
0
0.2
0.60
0
2.50<VEXT<2.60V
No Load
Full Load
R1* Not Connected
2
RTG Not Connected
50
1.5
0
R1* Not Connected
R1*=0
20
4
* R1 See Fig.2
September 98
Page 2 of 6
98002-05-003-02.doc
IXYS Corporation 3540 Bassett Street, Santa Clara, CA 95054 TEL:408-982-0700 FAX:408-496-0670
IXYS Semiconductor, GmbH. Edisonstr. 15 D-68623 Lampertheim, Germany TEL:+49-6206-503-0 FAX:+49-6206-503-627
AXC-102
PRELIMINARY
AC Electrical Specification (-30°C ≤ TA ≤ +85°C)
Operating Voltage 4-28V ; Output Current ILOAD=(0÷ 20)A
Parameter
Conditions
Insertion Loss
Attenuation*
Output Impedance
Line Transient Attenuation
Transient Output Impedance
20Hz ÷ 10KHz @ 50Ω
At 1Khz
10Hz-10Khz
10Hz ÷ 10KHz
Transient voltage less than 0.5V
R2** does not exist
Idc=2A; ∆I=5A
Min
Typ
Max
Units
40
55
27
50
61
30
4
30
60
dB
dB
dB
mΩ
dB
26
6
6
mΩ
*C1 = 10uF ,C2=470uF Electrolytic Capacitor ,R2 not exist; Maximum Input Noise Level = 0.8Vptp
** See Fig2.
Fig.2 - Test Circuit
External
Bias
Circuit Breaker Current Setting:
I EXT
I CIRCUIT
BREAKER
[ A] =
VVROP
720 + 240R * 1[ KΩ ]
±10%
150 + 11R * 1[ KΩ ]
VEXT
A
V
R2
7
V
VCBS
SW 2
1
VD
PIN
V
9
4
3
VEXT RTG CBS
POUT
AXC102
SNS
Vripple
SD
8
C1
10uF
RET
5
10
6
CL
2
C2
470uF
VIN
Voltage Drop Setting:
VDROP[V ] =
VOUT
VSD
V
1.2R * 2[ KΩ ]
±5%
100 + 2 R * 2[ KΩ ]
I SD
A
V
+
- Vdc
I CL
A
SW 1
VCL
V
V
I LOAD
A
R1
*R1,R2 See Fig2.
Fig.3 - Circuit Breaker Current Setting
Fig.4 - Voltage Drop Setting
0.6
25
0.5
20
I circuit breaker[A]
0.4
Vdrop[V]
15
10
0.2
5
0
0.3
0.1
0
1
10
100
1000
1
100
1000
R2[KΩ ]
R1[KΩ ]
September 98
10
Page 3 of 6
98002-05-003-02.doc
IXYS Corporation 3540 Bassett Street, Santa Clara, CA 95054 TEL:408-982-0700 FAX:408-496-0670
IXYS Semiconductor, GmbH. Edisonstr. 15 D-68623 Lampertheim, Germany TEL:+49-6206-503-0 FAX:+49-6206-503-627
AXC-102
PRELIMINARY
Load Transient Response
Fig.5B
Fig.5A
Thermal Resistance
Parameter
Junction-to-Sink [ RθJS ]
Attenuation (Vout[ac]/Vripple)
Typ
Max
Units
1.4
1.6
°C/W
General Specifications
Parameter
Weight
Units
34±2
gr.
Fig.6
September 98
Page 4 of 6
98002-05-003-02.doc
IXYS Corporation 3540 Bassett Street, Santa Clara, CA 95054 TEL:408-982-0700 FAX:408-496-0670
IXYS Semiconductor, GmbH. Edisonstr. 15 D-68623 Lampertheim, Germany TEL:+49-6206-503-0 FAX:+49-6206-503-627
AXC-102
PRELIMINARY
Pin Description
No
Name
Short Description
1
VD
Voltage Drop
6
SNS
Sense Input
2
CL
Current Limit
7
PIN
Positive Input
3
CBS
8
SD
Shut Down
4
RTG
9
VEXT
External Bias
5
RET
Circuit
Breaker Status
Retriggerable
Mode
Ground
10
POUT
Positive Output
28
Short Description
2
13.5 11.8
44
1
2
35 (35x26
DCB Ceramic)
48
10
45°
6 5
4 3
10.06
5.3
31.6
11
6.9
0.5
89
Name
10.13
16.8
2 1
10.87 10.87
2.54 2.54
Fig.7
16.8
4
7
No
Fig.8 – Mechanical Drawing
2.54
63
Typical Applications
Optional
NC
NC
1
9
4
3
VD VEXT RTG CBS
L1
100uHy
7
PIN
AXC102
POUT
SNS
SD
8
Car
Battery
C1
100uF
RET
5
CL
2
NC
Optional
Shut
Down
10
6
C2
500uF
Load
Fig.9A - Input Power Filter For Sensitive Vehicle Electronic Equipment
September 98
Page 5 of 6
98002-05-003-02.doc
IXYS Corporation 3540 Bassett Street, Santa Clara, CA 95054 TEL:408-982-0700 FAX:408-496-0670
IXYS Semiconductor, GmbH. Edisonstr. 15 D-68623 Lampertheim, Germany TEL:+49-6206-503-0 FAX:+49-6206-503-627
AXC-102
PRELIMINARY
Typical Applications
+2.5V
(OPTION) Bias
Voltage
NC
NC
NC
1
9
4
3
VD VEXT RTG CBS
7
+OUT
+S
PIN
POUT
AXC102
SNS
C1
SD
8
NC
10uF
Lab. P.S.
RET
5
CL
2
NC
10
Vo=0V - 28V
6
C2
470uF
Load
-S
-OUT
Fig.9B – Ultra Low Noise, High Efficiency Laboratory Switch-Mode Power Supply
Digital
Load
Optional
NC NC
1
9
4
3
VD VEXT RTG CBS
+OUT
7
-S
AXC102
SNS
+S
S.M.P.S
POUT
PIN
SD
8
C1
10uF
RET
5
CL
2
NC
Optional
Shut
Down
10
6
C2
500uF
Analog
Load
-OUT
Fig.9C - Analog Digital Power Supply Decoupler (Sensitive Analog Load).
September 98
Page 6 of 6
98002-05-003-02.doc
IXYS Corporation 3540 Bassett Street, Santa Clara, CA 95054 TEL:408-982-0700 FAX:408-496-0670
IXYS Semiconductor, GmbH. Edisonstr. 15 D-68623 Lampertheim, Germany TEL:+49-6206-503-0 FAX:+49-6206-503-627