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IRDM982 Datasheet(PDF) 16 Page - International Rectifier

Part No. IRDM982
Description  Dynamic overcurrent limit per temperature
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Maker  IRF [International Rectifier]
Homepage  http://www.irf.com
Logo IRF - International Rectifier

IRDM982 Datasheet(HTML) 16 Page - International Rectifier

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IRDM982 Series
16 www.irf.com
© 2015 International Rectifier
April 8, 2015
The following Figures show the VSP input mapping, the Hall sensor input circuit, and the ISENSE pin input
filter circuit.
100%
(ADC=511)
0%
(ADC=199)
2.1V
5.4V
VSP
VMOD
6.0V
Figure 12 VSP Range and Thresholds
HALL1,2,3+
900kohm
900kohm
1.8pF
HALL1,2,3-
High Gain
OP amp
Hysteresis
comparator
Hyst: 75 mV typ
Gain: 80dB typ
Figure 13 Hall sensor input circuit
Super Clamp
ESD diode
High Side
PWM Off/Low
side all on
or
PWM all off
Dynamic threshold
Hardware
comparator
COM
VSS
VCC
25kW
25kW
25k W
25kW
5V zener
500K
2pF
Figure 14 COM pin current limit comparator and analog filter


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