Technical Specification
Input:
9-22 V
Output:
48 V
Current:
3.7 A
Part no.:
IQ12480HPx3H
IQ12480HPC3H eLeCtRICAL CHARACteRIstICs (48.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 12 V dc 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
InPUt CHARACteRIstICs
Maximum Input Current
No-Load Input Current
Disabled Input Current
Response to Input Transient
Input Terminal Ripple Current
Recommended Input Fuse
OUtPUt CHARACteRIstICs
Output Voltage Set Point
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
Settling Time
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
eFFICIenCY
100% Load
50% Load
Min.
typ.
Max.
29.1
Units notes & Conditions
A
mA
mA
V
mA
500 V/ms; see Figure 6
RMS
Fast acting external fuse recommended
Vin min; trim up; in current limit
400
2
1.6
320
500
3
TBD
A
47.52
48
48.48
V
±0.1
±0.1
-720
46.80
±0.3
±0.3
720
49.20
%
%
mV
V
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
0
200
27
400
50
3.7
mV
mV
A
A
V
A
mA
Full load
Full load
Subject to thermal derating
Output voltage 10% Low
0
4.07
4.44
25
TBD
5
4.81
Negative current drawn from output
Negative current drawn from output
Vout nominal at full load (resistive load)
100
µF
1800
80
-20
10
10
56.2
58.6
61.0
mV
µs
%
%
V
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
90
91
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic capacitor. For applications requiring reduced output voltage ripple and noise, consult SynQor
applications support (e-mail: support@synqor.com)
Note 2: Trim-up range is limited below 10% at low line and full load.
Product # IQ12xxxHPXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ12HPX Rev. B
04/10/09
Page 22
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