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ADM1041
Description
Trim registers, locking bit.
Bit No.
0
Name
trim_lock
Bit
Bit
Bit
b0
Option
Mode
0
1
Trimming mode
All trim registers locked out
Current Sense Mode.
7
csense_mode
b7
Mode
0
1
Differential sense
CT Sense
Chopper Mode.
6
chopper
b6
Mode
Current sense dc offset
adjustment (with respect to
0
1
Differential current sense amplifier is
continuous (recomended)
Differential sense amplifier is chopper
Trim
the input).
Compensates for the
2–0
os_dc_range
b5
0
0
0
b4
0
0
1
b3
0
1
0
?8 mV
?15 V
?30 V
amplifier input offset
voltage.
1
1
1
0
0
1
0
1
0
+8 mV
+15 mV
+30 mV
Current sense external
divider error correction
range (with respect to the
input).
Compensates for the
mismatch error of the
external resistor dividers at
Pins 2 and 3.
5–3
os_div_range
b5
0
0
0
1
1
b4
0
0
1
0
0
b3
0
1
0
0
1
Trim
?5 mV
?10 mV
?20 mV
+5 mV
+10 mV
1
1
0
+20 mV
Set differential current
sense gain.
2–0
diff_gain
b2
b1
b0
Gain
Range
0
0
0
1
1
1
0
0
1
0
0
1
0
1
0
0
1
0
65
85
110
135
175
230
34.0 mV–44.5 mV
26.0 mV–34.0 mV
20.0 mV–26 mV
16.0 mV–20.0 mV
12.0 mV–16.0 mV
9.8 mV–12.0 mV
Set current transformer
input gain.
5
ct_range
b5
Gain
Range
OCP mode. Disables OCP
0
1
4.5
2.57
0.45 V–0.68 V
0.79 V–1.20 V
shutdown.
7
curr_lim_dis
b7
Mode
OCP Ride Through. Sets the
0
1
OCP timer starts when C CMP > 0.5 V
No OCP shutdown
OCP timer duration before
OCP shutdown occurs.
4–3
ocpts1 Reg12h
ocpts0 Reg12h
b4
0
b3
0
Period
1s
0
1
1
1
0
1
2s
3s
4s
2
ocpts2
X
X
100 ms
Rev. A | Page 56 of 64
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