=24Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient
temperature with appropriate power derating. Specifications subject to change without notice.
Min.
Typ.
Max.
50
40
50
2250
100
125
18
24
17.0
15.5
1.5
300
100
1.5
10
500
0.34\23
470
27.22
28.00
+0.25\70
+0.25\70
+0.215
27.15
150
40
0
19.5
4
0
21.0
11.5
5
3
36
17.5
16.0
2.0
38
400
125
25
40
Units
V
V
V
V
°C
°C
V
V
V
V
V
A
mA
mA
V
mA
mA
A
µH\µF
µF
V
%\mV
%\mV
V
V
mV
mV
A
A
V
A
mA
mF
V
V
ms
Notes & Conditions
Continuous
Continuous
100 ms transient, square wave
Basic insulation, Pollution Degree 2
-40
-55
-2
18
16.5
15.0
1.0
50 V transient for 100 ms
100% Load, 18 Vin, trimmed up 20%
0.25 V/µs input transient
RMS thru 3.3 µH inductor
RMS
Fast blow external fuse recommended
Internal values
Typical ESR 0.1-0.2
W
28.75
+0.560
28.82
250
70
18
22.5
6
4
5
Over sample, line, load, temperature & life
20 MHz bandwidth
Full Load
Full Load
Subject to thermal derating
Output Voltage 10% Low
Negative current drawn from output source
Negative current drawn from output source
18 A Resistive Load
50% to 75% to 50% Iout max, 200 µF load cap
“
To within 1% Vout nom
Full load, ON/OFF to Vout=90% nom.
No load, 5 mF load cap
1.5
1.5
8
24
37
93
95
125
125
125
2250
30
1000
40
5
ms
%
%
%
°C
°C
°C
V
MW
pF
Package rated to 150°C
UL rated max operating temp 130°C
Note
Note
Note
Note
1:
2:
3:
4:
Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference.
For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com).
If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode, with a 500ms off-time.
Higher values of isolation capacitance can be added external to the module.
Product # IQ24280HZx18
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IHZ2428 Rev. G
12/04/09
Page 2
Technical Specification
Electrical Characteristics (Continued)
Parameter
P
FEATURE CHARACTERISTICS
Switching Frequency Regulation Stage
Switching Frequency Isolation Stage
ON/OFF Control (Option N)
Off-State Voltage
On-State Voltage
ON/OFF Control
ON/OFF Control Hysteresis
Pull-Up Voltage
Pull Up Resistance
Output Voltage Trim Range
Output Over-Voltage Protection
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia)
Calculated MTBF (MIL-217)
Field Demonstrated MTBF
Input:
Output:
Current:
Package:
18-36 V
28 V
18 A
(504 W)
Half-brick
Min.
232
116.0
4.0
-2
4.75
-50
125
Typ.
235
117.5
Max.
243
118.5
18
1.0
Units
kHz
kHz
V
V
V
V
kW
%
%
°C
°C
10
6
Hrs.
10
6
Hrs.
10
6
Hrs.
Notes & Conditions
Over sample, temp & life
Over sample, temp & life
1.5
5.00
10
130
120
10
1.49
1.31
5.25
+20
135
Measured across Pins 9 & 5; see trim section
Over full temp range; % of nominal Vout
Average PCB Temperature
Tb = 70ºC
Tb = 70ºC
See website for details
Product # IQ24280HZx18
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IHZ2428 Rev. G
12/04/09
Page 3
Technical Specification
100
95
70
60
Input:
Output:
Current:
Package:
18-36 V
28 V
18 A
(504 W)
Half-brick
Efficiency (%)
85
80
75
70
65
60
0
2
4
6
8
10
12
14
16
18
18 Vin
24 Vin
36 Vin
Power Dissipation (W)
90
50
40
30
20
10
0
0
2
4
6
8
10
12
14
16
18
18 Vin
24 Vin
36 Vin
Load Current (A)
Load Current (A)
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.
16
14
12
10
20
18
16
14
Iout (A)
Iout (A)
12
10
8
6
4
2
0
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
25
40
55
70
85
8
6
4
2
0
25
40
55
70
85
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3:
Encased converter (without 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 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:
Turn-on transient at full load (resistive load) (10 ms/div).
Ch 1: Vout (5 V/div)
Ch 2: ON/OFF input (5 V/div)
Product # IQ24280HZx18
Phone 1-888-567-9596
Figure 6:
Turn-on transient at zero load (10 ms/div).
Ch 1: Vout (5 V/div)
Ch 3: ON/OFF input (5 V/div)
Doc.# 005-IHZ2428 Rev. G
12/04/09
Page 4
www.synqor.com
Technical Specification
Input:
Output:
Current:
Package:
18-36 V
28 V
18 A
(504 W)
Half-brick
Figure 7:
Output voltage response to step-change in load current (50%-75%-50% of
I believe this will give us some inspiration for our energy use: After dinner, it would be a good choice to go out for a walk with your loved ones. But have you ever thought that walking on the road c...
How to contact the administrator There are two ways to contact the administrator: [color=blue]1) Click the "Contact Us" link in the lower right corner of the forum page to quickly send us an email, as...
[size=3] Resistance is a performance indicator used to measure the impact of an amplifier on a signal source. The larger the input resistance, the smaller the current the amplifier takes from the sign...
In recent days, I have been talking with friends about starting a business. Starting a business means that you have the potential to run towards free funds. Therefore, no matter how difficult the curr...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
1. Introduction
This design was made for participating in an electronic design competition. It effectively solved the problem of the operation and control of an electric car on a seesaw. The s...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
With the advent of increasingly powerful processors, image sensors, memory, and other semiconductor devices, as well as the algorithms that enable them, computer vision can be implemented in a wide...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
Nippon Electric Works and Volvo Technology Japan have developed a wireless power supply system for electric vehicles (EVs). Using this system, the two companies have successfully conducted an exper...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[Details]
Creative Market
京公网安备 11010802033920号
EEWORLD
