CF48xxxQTxxx
34-75V
100V
5.0-24V
Outputs
Technical
Specification
150W
Max Power
4250V dc
Reinforced Insulation
Quarter-brick
DC-DC Converter
Continuous Input Transient Input
Rated for CF Patient Contact and Defibrillation Proof
The CFQor series of Quarter-Brick DC-DC converters is
designed for those medical applications that require
isolation and leakage current levels that comply with
F
34
48
-7
1
5V
20
Q
IN
12
TC
V
1
IEC60601-1 for CF patient contact and are also defibrillation
proof. They are high efficiency, fixed switching frequency,
encased converters based on SynQor's well proven and
reliable industrial grade products.
Operational Features
•
•
•
•
•
High efficiency, 92% at full rated load current
Delivers full power with minimal derating - no heatsink required
Operating input voltage range: 34-75V continuous; 100V transient
Fixed frequency switching provides predictable EMI
No minimum load requirement
Mechanical Features
• Industry standard quarter-brick pin-out configuration
• Size: 1.536" x 2.386" x 0.50" (39.01 x 60.6 x 12.7 mm)
• Total weight: 3 oz (85 g)
Protection Features
•
•
•
•
•
Input under-voltage lockout
Output current limit and short circuit protection
Active back bias limit
Output over-voltage protection
Thermal shutdown
Control Features
Control Features
• On/Off control referenced to input side
• Remote sense for the output voltage
• Output voltage trim range of -20%, +10%
Contents
Family Electrical Characteristics (all output voltages) . . . . . . . . . . . . . .2
Family Electrical Charts (all output voltages) . . . . . . . . . . . . . . . . . . . .3
Electrical Characteristics (5.0 Vout) & Figures . . . . . . . . . . . . . . . . . 4-5
Electrical Characteristics (12.0 Vout) & Figures . . . . . . . . . . . . . . . . 6-7
Electrical Characteristics (15.0 Vout) & Figures . . . . . . . . . . . . . . . . 8-9
Electrical Characteristics (24.0 Vout) & Figures . . . . . . . . . . . . . . 10-11
Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-15
Standards & Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Encased Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Flanged Mechanical Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety Features
Reinforced Insulation
• 4250V, 100 MΩ input-to-output
• UL 60601-1:2003
• CAN.CSA 22.2 No. 601.1-M90
• EN 60601-1/A2:1995
• IEC 60601-1/A2:1995
• CF Patient Contact
• Defibrillation Proof
• RoHS compliant (see last page)
Product # CF48xxxQTXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005450 Rev. B
C
O
UT
@
RS
12
-G
A
2N
05/11/10
Page 1
CF48xxxQTxxx
CF48-QT Family Electrical Characteristics (all output voltages)
Ta = 25°C, airflow rate = 300 LFM, Vin = 48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Technical
Specification
Parameter
Min.
Typ.
Max.
100
75
100
4250
4250
4250
100
125
18
Units Notes & Conditions
V
V
V
V dc
V dc
V dc
°C
°C
V
V
V
V
V
µF
µH\µF
A
Continuous
Continuous
1s
Reinforced Insulation
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Operating Transient
Isolation Voltage
Input to Output
Input to Base-Plate
Output to Base-Plate
Operating Temperature
-40
Storage Temperature
-55
Voltage at ON/OFF input pin
-2
INPUT CHARACTERISTICS
Operating Input Voltage Range
34
Input Under-Voltage Lockout
Turn-On Voltage Threshold
32.2
Turn-Off Voltage Threshold
30.2
Lockout Voltage Hysteresis
Recommended External Input Capacitance
Input Filter Component Values (L\C)
Recommended Input Fuse
DYNAMIC CHARACTERISTICS
Turn-On Transient
Turn-On Time
Start-Up Inhibit Time
200
Output Voltage Overshoot
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
Isolation Capacitance (input / baseplate to output)
Output Leakage Single Fault
Difibrillation Pulse (input / baseplate earthed)
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Maximum Baseplate Temperature, Tb
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control
Off-State Voltage
2.4
On-State Voltage
-2
ON/OFF Control
Pull-Up Voltage
Pull-Up Resistance
Over-Temperature Shutdown OTP Trip Point
Over-Temperature Shutdown Restart Hysteresis
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia) TR-NWT-000332
Calculated MTBF (MIL-217) MIL-HDBK-217F
Field Demonstrated MTBF
Product # CF48xxxQTXxx
Phone 1-888-567-9596
Baseplate temperature
48
33.0
31.0
2.0
100
4.7\6.6
75
33.8
31.8
100V transient for 1s
15
Typical ESR 0.1-0.2Ω
Internal values; see Figure D
Fast acting external fuse recommended
10
230
0
4250
100
270
27
5
250
ms
ms
%
V dc
MΩ
pF
µA
kV
Full load, Vout=90% nom.
Figure F; See Note 2
Maximum Output Capacitance
See Absolute Maximum Ratings
264Vac 60Hz Backdrive
Fig. 51 60601-1 2nd Edition
Package rated to 150 °C
UL rated max operating temp 130 °C
125
125
125
100
250
18
0.8
5
50
125
10
2.5
1.8
TBD
°C
°C
°C
°C
kHz
V
Application notes Figures A & B
V
kΩ
°C
°C
Average PCB Temperature
106 Hrs. 80% load, 200LFM, 40°C Ta
106 Hrs. 80% load, 200LFM, 40°C Ta
106 Hrs. See our website for details
Doc.# 005-0005450 Rev. B
05/11/10
Page 2
www.synqor.com
CF48xxxQTxxx
Family Electrical Charts (all output voltages)
Nominal Vout
120
Technical
Specification
100
Output Voltage (%)
80
60
40
Vin min
Vin nom
Vin max
20
0
0
10
20
30
40
50
Load Current (%)
60
70
80
90
100 110 120 130 140 150
Common Figure 1: Typical startup waveform. Input voltage pre-applied, ON/
OFF Pin on Ch 2.
100,000.0
Common Figure 2: Output voltage vs. load current showing typical current limit
curves and converter shutdown points.
100,000.0
Trim Resistance (kOhms)
Trim Resistance (kOhms)
10,000.0
5V
12 V
10,000.0
15 V
24 V
1,000.0
1,000.0
100.0
10.0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Increase in Vout (%)
100.0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Increase in Vout (%)
Common Figure 3: Trim graph for trim-up 1.8 to 7 V outputs.
Common Figure 4: Trim graph for trim-up 12 to 24 V outputs.
10,000.0
All voltages
Trim Resistance (kOhms)
1,000.0
100.0
10.0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
Decrease in Vout (%)
Common Figure 5: Trim graph for trim down.
Product # CF48xxxQTXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005450 Rev. B
05/11/10
Page 3
Technical Specification
CF48050QTx25 Electrical Characteristics (5.0Vout)
Input:34-75V
Output:5V
Current:25A
Part No.:CF48050QTx25
Ta = 25°C, airflow rate = 300 LFM, Vin = 48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C baseplate temperature
with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max.
Units Notes & Conditions
A
mA
mA
V
mA
A
V
%
%
mV
V
mV
mV
A
A
V
A
mA
µF
mV
µs
%
%
V
Vin min; trim up; in current limit
INPUT CHARACTERISTICS
Maximum Input Current
5.3
No-Load Input Current
70
90
Disabled Input Current
2
4
Response to Input Transient
0.25
Input Terminal Ripple Current
320
Recommended Input Fuse
15
OUTPUT CHARACTERISTICS
Output Voltage Set Point
4.95
5.000
5.05
Output Voltage Regulation
Over Line
±0.1
±0.3
Over Load
±0.1
±0.3
Over Temperature
-75
75
Total Output Voltage Range
4.875
5.125
Output Voltage Ripple and Noise
Peak-to-Peak
0
60
120
RMS
20
40
Operating Output Current Range
0
25
Output DC Current-Limit Inception
27.5
30.0
32.5
Output DC Current-Limit Shutdown Voltage
2.4
Back-Drive Current Limit while Enabled
1
Back-Drive Current Limit while Disabled
10
Maximum Output Capacitance
8,000
Output Voltage during Load Current Transient
Step Change in Output Current (0.1A/µs)
240
Settling Time
400
Output Voltage Trim Range
-20
10
Output Voltage Remote Sense Range
10
Output Over-Voltage Protection
5.9
6.1
6.4
EFFICIENCY
100% Load
90.0
50% Load
92.0
Note 1: Output is terminated with 1µF ceramic and 22µF low-ESR tantalum capacitors. For
noise, consult SynQor applications support (e-mail: support@synqor.com)
500V/ms; see Figure 6
RMS
Fast acting external fuse recommended
Over sample, line, load, temperature & life
20MHz bandwidth; see Note 1
Full load
Full load
Subject to thermal derating
Output voltage 10% Low
Differential negative current drawn from output
Differential negative current drawn from output
Vout nominal at full load (resistive load)
50% to 75% to 50% Iout max
To within 1% Vout nom
Across Pins 8&4; Common Figures 3-5; see Note 2
Across Pins 8&4
Over full temp range
%
See Figure 1 for efficiency curve
%
See Figure 1 for efficiency curve
applications requiring reduced output voltage ripple and
Note 2: Trim-up range is limited below 10% at low line and full load. Contact SynQor applications support for more detail (email: support@synqor.com)
Product # CF48xxxQTXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005450 Rev. B
05/11/10
Page 4
Technical Specification
100
95
90
18
Input:34-75V
Output:5V
Current:25A
Part No.:CF48050QTx25
15
Power Dissipation (W)
Efficiency (%)
85
80
75
70
65
60
0
5
34 Vin
48 Vin
75 Vin
12
9
6
34 Vin
48 Vin
75 Vin
3
0
Load Current (A)
10
15
20
25
0
5
10
Load Current (A)
15
20
25
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25°C.
30
30
25
25
20
20
Iout (A)
Iout (A)
15
15
10
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
10
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
5
5
0
25
40
0
Ambient Air Temperature (°C)
55
70
85
25
40
Ambient Air Temperature (°C)
55
70
85
Figure 3: Open Frame converter max. output power derating vs. ambient air
temperature for airflow rates of 100 LFM through 400 LFM. Air flows across the
converter from input to output (nominal input voltage).
Figure 4: Encased converter (with 1/2” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%-
50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 15µF tantalum cap and 1µF
ceramic cap. Ch 1: Vout, Ch 2: Iout.
Product # CF48xxxQTXxx
Phone 1-888-567-9596
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum input voltage), at full load current. Load cap: 15µF tantalum
capacitor and 1uF ceramic cap. Ch 1: Vout , Ch 2: Vin.
Doc.# 005-0005450 Rev. B
05/11/10
Page 5
www.synqor.com
