EVAL-ADM1175EBZ View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-ADM1175EBZ' PDF : 24 Pages View PDF
Data Sheet
APPLICATIONS INFORMATION
APPLICATIONS WAVEFORMS
1
2
3
4
CH1 1.5A CH2 1.00V
CH3 20.0V CH4 10.0V
M40.0ms
Figure 41. Inrush Current Control into 220 µF Load
(Channel 1 = ILOAD, Channel 2 = VTIMER, Channel 3 = VGATE, Channel 4 = VOUT)
ADM1175
1
2
3
4
CH1 1.5A CH2 1.00V
CH3 20.0V CH4 10.0V
M10.0ms
Figure 44. Overcurrent Condition During Operation (ADM1175-1 Model)
(Channel 1 = ILOAD, Channel 2 = VTIMER, Channel 3 = VGATE, Channel 4 = VOUT)
1
2
3
4
CH1 1.5A CH2 1.00V
CH3 20.0V CH4 10.0V
M10.0ms
Figure 42. Overcurrent Condition at Startup (ADM1175-1 Model)
(Channel 1 = ILOAD, Channel 2 = VTIMER, Channel 3 = VGATE, Channel 4 = VOUT)
1
2
3
4
CH1 1.5A CH2 1.00V
CH3 20.0V CH4 10.0V
M20.0ms
Figure 43. Overcurrent Condition at Startup (ADM1175-2 Model)
(Channel 1 = ILOAD, Channel 2 = VTIMER, Channel 3 = VGATE, Channel 4 = VOUT)
1
2
3
4
CH1 1.5A CH2 1.00V
CH3 20.0V CH4 10.0V
M20.0ms
Figure 45. Overcurrent Condition During Operation (ADM1175-2 Model)
(Channel 1 = ILOAD, Channel 2 = VTIMER, Channel 3 = VGATE, Channel 4 = VOUT)
KELVIN SENSE RESISTOR CONNECTION
When using a low value sense resistor for high current
measurement, the problem of parasitic series resistance can
arise. The pad and solder resistance can be a substantial fraction
of the rated resistance, making the total resistance larger than
expected. This error problem can be largely avoided by using a
Kelvin sense connection. This type of connection separates the
high current path through the resistor and the voltage drop
across the resistor. A 4-pad resistor may be used or a split pad
layout can be used with a 2-pad sense resistor to achieve Kelvin
sensing.
Rev. C | Page 21 of 24
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