Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

ADP1046AW Datasheet(PDF) 72 Page - Analog Devices

Part No. ADP1046AW
Description  Digital Controller for Isolated
Download  88 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  AD [Analog Devices]
Homepage  http://www.analog.com
Logo 

ADP1046AW Datasheet(HTML) 72 Page - Analog Devices

Zoom Inzoom in Zoom Outzoom out
 72 / 88 page
background image
ADP1046AW
Data Sheet
Rev. 0 | Page 72 of 88
Table 90. Register 0x5A—OUTAUX Rising Edge Setting (OUTAUX Pin)
Bits
Bit Name
R/W
Description
[7:4]
t13
R/W
These bits contain the four LSBs of the 12-bit t13 time. This value is always used with the eight
bits of Register 0x59, which contains the eight MSBs of the t13 time. Each LSB corresponds to 5 ns
resolution. The entire switching period is divided into 40 ns time steps. If the tRx and tFx of a PWM
edge occur within the same 40 ns time step, the PWM output is 0 V. If the tRx and tFx occur in
different 40 ns time steps, the PWM output is set to the programmed value. The absolute
maximum pulse width is tPERIOD − 5 ns. Depending on the switching frequency and the OUTAUX
frequency, there is a constant lag/lead time between this edge and the other edges (t1 to t12);
therefore, OUTAUX is not synchronized to the other PWM outputs but can be made synchronous
by adjusting the delay accordingly. If either the OUTAUX switching frequency (Register 0x3F) or
the PWM switching frequency (Register 0x40) is changed after edge adjustment, the synchroniza-
tion between OUTAUX and the PWM edges is no longer maintained. The OUTAUX delay must be
adjusted again to synchronize the edges to the PWM edges for the new set of switching frequencies.
3
Modulate enable
R/W
1 = PWM modulation acts on the t13 edge.
0 = no PWM modulation of the t13 edge.
2
t13 sign
R/W
1 = negative sign. Increase of PWM modulation moves t13 right.
0 = positive sign. Increase of PWM modulation moves t13 left.
[1:0]
Reserved
R/W
Reserved.
Table 91. Register 0x5B—OUTAUX Falling Edge Timing (OUTAUX Pin)
Bits
Bit Name
R/W
Description
[7:0]
t14
R/W
This register contains the eight MSBs of the 12-bit t14 time. This value is always used with the top
four bits of Register 0x5C, which contains the four LSBs of the t14 time. Each LSB corresponds to
5 ns resolution. The entire switching period is divided into 40 ns time steps. If the tRx and tFx of a
PWM edge occur within the same 40 ns time step, the PWM output is 0 V. If the tRx and tFx occur
in different 40 ns time steps, the PWM output is set to the programmed value. The absolute
maximum pulse width is tPERIOD − 5 ns. Depending on the switching frequency and the OUTAUX
frequency, there is a constant lag/lead time between this edge and the other edges (t1 to t12);
therefore, OUTAUX is not synchronized to the other PWM outputs but can be made synchronous
by adjusting the delay accordingly. If either the OUTAUX switching frequency (Register 0x3F) or
the PWM switching frequency (Register 0x40) is changed after edge adjustment, the synchroniza-
tion between OUTAUX and the PWM edges is no longer maintained. The OUTAUX delay must be
adjusted again to synchronize the edges to the PWM edges for the new set of switching frequencies.
Table 92. Register 0x5C—OUTAUX Falling Edge Setting (OUTAUX Pin)
Bits
Bit Name
R/W
Description
[7:4]
t14
R/W
These bits contain the four LSBs of the 12-bit t14 time. This value is always used with the eight
bits of Register 0x5B, which contains the eight MSBs of the t14 time. Each LSB corresponds to 5 ns
resolution. The entire switching period is divided into 40 ns time steps. If the tRx and tFx of a PWM
edge occur within the same 40 ns time step, the PWM output is 0 V. If the tRx and tFx occur in
different 40 ns time steps, the PWM output is set to the programmed value. The absolute
maximum pulse width is tPERIOD − 5 ns. Depending on the switching frequency and the OUTAUX
frequency, there is a constant lag/lead time between this edge and the other edges (t1 to t12);
therefore, OUTAUX is not synchronized to the other PWM outputs but can be made synchronous
by adjusting the delay accordingly. If either the OUTAUX switching frequency (Register 0x3F) or
the PWM switching frequency (Register 0x40) is changed after edge adjustment, the synchroniza-
tion between OUTAUX and the PWM edges is no longer maintained. The OUTAUX delay must be
adjusted again to synchronize the edges to the PWM edges for the new set of switching frequencies.
3
Modulate enable
R/W
1 = PWM modulation acts on the t14 edge.
0 = no PWM modulation of the t14 edge.
2
t14 sign
R/W
1 = negative sign. Increase of PWM modulation moves t14 right.
0 = positive sign. Increase of PWM modulation moves t14 left.
1
Regulate with
OUTAUX
R/W
1 = control loop PWM modulation is regulated by OUTAUX. When this bit is set, the CS1 blanking
signal is synchronized with OUTAUX.
0 = control loop PWM modulation is regulated by OUTA, OUTB, OUTC, OUTD, SR1, and SR2
(normal mode).
Note that a write to this bit immediately switches the regulation point and frequency settings;
however, the correct modulation limit and filter settings do not take effect until a subsequent
frequency GO is executed using Register 0x7F[2]. For this reason, it is not recommended that the
regulation point be changed on the fly using Register 0x5C[1].
0
Reserved
R/W
Reserved. Set this bit to 0 for normal operation.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn