Input Voltage Range:
9-20V, 18-36V, 36-75V & 9-36V, 18-75V
50W Triple Outputs:
5.0V,
±12V;
5.0V,
±15V
FEATURES:
▪
All outputs are regulated
▪
High reliability planar xmer design
▪
Ultra low ripple & noise
▪
No external capacitor required
▪
High power density
▪
High effieiencies to 90%
▪
Fully isolated to 1500Vdc
▪
2.0” x 2.0” x 0.42” form factor
▪
-55 to +100°C operation available
BLOCK DIAGRAM
Indefinite
Short-Circuit
Protection
Over-Voltage
Protection
Over-Load
Protection
Opto Isolation
Error
Amplifier
(+)Vin 3
5 (+)V2
Regulator
Low
Dropout
6 Com
7 (-)V3
10
9
11
12
(+)S
(+)V1
(-)S
(-)V1
(-)Vin 2
Interleaved
Current
Mode
Controller
Over-Temp.
Protection
Undervoltage
Lockout
Enable
Control
PWM
1. V1 & V2 are individually regulated
2. V3 is regulated with low drop.
V2/V3 4
V1 1
*V1 is isolated from +V2/-V3
Opto Isolation
Error
Amplifier
8 V1Trim
Ordering Guide:
Input
Model
FH50T1205-12
FH50T2405-12
FH50T4805-12
FH50T24W05-12
FH50T48W05-12
FH50T1205-15
FH50T2405-15
FH50T4805-15
FH50T24W05-15
FH50T48W05-15
1
2
Vout
(Volts)
Iout
(A, max)
Power
(Watt)
1
mVp-p
2
Ripple
Noise
Regulation
3
Line
Load
Vin
12
Range
10-20
18-36
36-75
10-30
18-60
10-20
18-36
36-75
10-30
18-60
Iin
(mA)
4
Eff.
(%)
5
min.
87
88
88
87
87
87
88
88
88
88
Options
typ.
89
90
90
89
89
89
90
90
90
90
C, MC
70
60
50
60
50
70
60
50
60
50
5
+12
-12
6
+1.5
-1.25
50
35
40
30
40
45
35
±0.2
±0.5
24
48
24
48
12
24
48
24
48
5
+15
-15
5
+1.2
-1.0
35
45
35
40
50
40
Total max. output power.
Max V1/+V2, -V3 ripple and noise; measured without external capacitor, 20MHz B.W.
3
Balanced Loads on +V2/-V3.
4
Max no load input current.
5
Nominal line voltage and full load.
ACON, INC.
www.aconinc.com
FHT
p. 1 of 13
Oct 14, 2011
INPUT
SPECIFICATIONS:
Model No./Parameter
FH50T1205-xx
(Vin = 9 - 20V)
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Input Voltage Continuous
Input Trasient Withstand (100mSec)
Input Over Voltage Protection
Output ON (Input Ramping Up)
Output OFF (Input Ramping Down)
Input Voltage Continuous
Input Trasient Withstand (100mSec)
Input Over Voltage Protection
Output ON (Input Ramping Up)
Output OFF (Input Ramping Down)
Input Voltage Continuous
Input Trasient Withstand (100mSec)
Input Over Voltage Protection
Output ON (Input Ramping Up)
Output OFF (Input Ramping Down)
Input Voltage Continuous
Input Trasient Withstand (100mSec)
Input Over Voltage Protection
Output ON (Input Ramping Up)
Output OFF (Input Ramping Down)
Input Voltage Continuous
Input Trasient Withstand (100mSec)
Input Over Voltage Protection
Output ON (Input Ramping Up)
Output OFF (Input Ramping Down)
Disabled
POSITIVE Enable Logic
POSITIVE Control
1
NEGATIVE Control
Source or Sink current
Condition/Description
Min
9
Nom
12
21
Max
20
30
Units
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
mA
VDC
VDC
mA
8.8
8.2
18
24
37
FH50T2405-xx
(Vin = 18 - 36V)
9.0
8.8
36
50
18
17.6
75
100
36
35.6
36
50
9.0
8.8
75
100
18
17.6
10
+18
+1.8
1.0
17.8
17.2
36
48
76
FH50T4805-xx
(Vin = 36 - 75V)
35.6
35
9
24
37
FH50T24W05-xx
(Vin = 9 - 36V)
8.8
8.2
18
48
76
FH50T48W05-xx
(Vin = 18 - 75V)
Input Current
Enable (On/Off)
Control
1
17.8
17.2
8
+2.4
0
Enable Pin Floating = POSITIVE Control.
ACON, INC.
www.aconinc.com
FHT
p. 2 of 13
Oct 14, 2011
5.0V,
±12V
Output
OUTPUT SPECIFICATIONS:
Parameter
Output Voltage
5V
+12V
-12V
5V
+12V
-12V
5V
5V
+12V
-12V
5V
+12V
-12V
5V
(No Extenal Capacitor)
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Input Voltage = Nom, Output Current = Max
Input Voltage = Nom
Output Current = Balanced Load, Nom
Baseplate Temperature =< +90°C
(Total Output Power 60W max.)
Trim Up (Trim resistor to trim & -5V pin)
Trim Down (Trim resistor to trim & +5V pin)
Input Voltage = Min to Max, Output Current = Max
Input Voltage = Min to Max
Output Current = Balanced Load, Nom
Input Voltage = Nom
Output Current = Max
Please See Regulation Curves on P.6
Ripple
Spike (20MHz B.W.)
Ripple
Spike (20MHz B.W.)
Ripple
Spike (20MHz B.W.)
Peak Deviation
Settling Time
Peak Deviation
Settling Time
Feedback Loop Voltage Clamp
Hiccup Mode Indefinite, Auto Recovery
Resistive Load
Condition/Description
Output Current
Output Trim
Line Regulation
4.95
+11.88
-11.76
0
0
0
4.5
Min
5.0
+12.0
-12.0
+1.25
-1.25
Nom
5.05
+12.12
-12.24
6.0
+1.5
-1.25
5.5
±0.2
±0.2
±0.5
±0.5
±0.5
±2.0
30
40
40
45
30
35
±100
150
±100
150
Max
Load Regulation
Ripple & Noise
+12V
-12V
Transient Response:
75-100 step Load
Over Voltage Protection
5V
+12V
5V
+12V
Short Circuit Protection
Start-Up
20
20
30
35
20
25
±70
100
±80
100
6.5
+15
20
VDC
VDC
VDC
A
A
A
V
V
%
%
%
%
%
%
mVp-p
mVp-p
mVp-p
mVp-p
mVp-p
mVp-p
mV
µSec
mV
µSec
VDC
Units
30
mSec
ACON, INC.
www.aconinc.com
FHT
p. 3 of 13
Oct 14, 2011
5.0V,
±12V
Output
Output Ripple & Noise
(Measured with no external capacitor, 20MHz B.W.)
Start-Up
(Resistive, Full Load)
5.0V
5.0V
+12V
+12V
-12V
ACON, INC.
www.aconinc.com
-12V
FHT
p. 4 of 13
Oct 14, 2011
5.0V,
±12V
Output
Output Load Transient
(75% to 100% Step Load change)
5.0V
+12V
Efficiency Curves
95
90
85
80
(Measured @ Baseplate Temp < 50°C)
95
90
85
80
Efficiency (%)
75
70
65
60
55
50
0
1.2
2.4
3.6
Efficiency (%)
Vin = 12V
Vin = 24V
Vin = 48V
4.8
6.0
75
70
65
60
55
50
0
±0.25
±0.50
±0.75
Vin = 12V
Vin = 24V
Vin = 48V
±1.0
±1.25
5.0V
Load Current (A)
±12V
Load Current (A)
ACON, INC.
www.aconinc.com
FHT
p. 5 of 13
Oct 14, 2011
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