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SMARTEK Vision | User Manual – LED Strobe Controller Family | Doc. v2.1.1
2.2. Value Ranges and Precision
To raise the current precision at lower levels, the current control is split into three ranges. The
following chapters describe the precision of different attributes over the set output current per
channel.
2.2.1.
Accuracy over Current Range
Based on the applied current level, the resolution is adjusted as shown in Table 2.
Running Mode
Range
Min.
[mA]
Max.
[mA]
Resolution
[mA]
Accuracy*
Set
Measure
Continuous /
External Switch
Range1
1
500
1
1%
2%
Range2
501
2500
2
1%
2%
Range3
2501
4000
11
1%
2%
Trigger Modes
(External, Internal,
Software)
Range1
10
700
1
2%
4%
Range2
701
7000
2
2%
4%
Range3
7001
40000
11
2%
4%
*The accuracy is defined as % of the full range
Table 2: HPSC4 resolution over current range
2.2.2.
Minimum Delay Time (HPSC4)
The minimum delay time from trigger to output signal depends on the set output current. The
specified minimum (
Min.
) delay of 4µs is reached at the specified maximum current for the
appropriate range, while the longest (
Max.
) delay is effective at the lowest current in that range.
Table 3 below shows the corresponding values, the ranges are the same as in chapter 2.2.1.
The relation between current and min/max delay time is decreasing exponential function.
Attribute
Range
Min.
[µs]
Max.
[µs]
Resolution
[µs]
Delay Time
-
4
60000000
1
Minimal Delay Time
Range1
(700mA down to 10mA)
4
14
1
Range2
(7000mA down to 701mA)
4
6
1
Range3
(40A down to 7001mA)
4
5
1
Table 3: Minimum delay time HPSC4
