ADM1041ARQ AD [Analog Devices], ADM1041ARQ Datasheet - Page 56

• Manufacturer Part Number: ADM1041ARQ
• Description: Secondary-Side Controller with Current Share and Housekeeping
• Manufacturer: AD [Analog Devices]

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