IQ70-HPC Datasheet, PDF (10/28 Pages) SynQor Worldwide Headquarters – Half-brick DC-DC Converter

Technical Specification
Input: 34 - 135 V
Output: 5.0 V
Current: 44 A
Part No.: IQ70050HPC44
IQ70050HPC44 ELECTRICAL CHARACTERISTICS (5.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 70 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
Min. Typ. Max. Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
9.0
A Vin min; 5 Vout ; in current limit (typ)
No-Load Input Current
45
60
mA
Disabled Input Current
2
3
mA
Response to Input Transient
0.35
V 500 V/ms, see Figure 6
Input Terminal Ripple Current
450
mA RMS
Recommended Input Fuse
15
A Fast acting external fuse recommended
OUTPUT CHARACTERISTICS
Output Voltage Set Point
4.95
5
5.05
V
Output Voltage Regulation
Over Line
±0.1
±0.3
%
Over Load
±0.1
±0.3
%
Over Temperature
-75
75
mV
Total Output Voltage Range
4.875
5.125
V Over sample, line, load, temperature & life
Output Voltage Ripple and Noise
20 MHz bandwidth; see Note 1
Peak-to-Peak
0
170
340
mV Full load
RMS
23
50
mV Full load
Operating Output Current Range
Output DC Current-Limit Inception
0
44
A Subject to thermal derating
48.4
52.8
57.2
A Output voltage 10% Low
Output DC Current-Limit Shutdown Voltage
2.7
V
Back-Drive Current Limit while Enabled
0.55
A Negative current drawn from output
Back-Drive Current Limit while Disabled
0.4
mA Negative current drawn from output
Maximum Output Capacitance
8,000
µF Vout nominal at full load (resistive load)
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
200
mV 50% to 75% to 50% Iout max
Settling Time
400
µs To within 1% Vout nom
Output Voltage Trim Range
-20
10
% Across Pins 8&4; Common Figures 3-5; See Note 2
Output Voltage Remote Sense Range
10
% Across Pins 8&4
Output Over-Voltage Protection
5.9
6.1
6.4
V Over full temp range
EFFICIENCY
100% Load
87
% See Figure 1 for efficiency curve
50% Load
90
% See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors.For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [e-mail])
Note 2: Trim-up range is limited below 10% at low line and full load.
Product # IQ70xxxHPCxx
Phone [phone]
www.synqor.com
Doc.# 005-005061 Rev. B
12/10/08
Page 10