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ZY7007 7A DC-DC Intelligent POL Data Sheet
3V to 14V Input ? 0.5V to 5.5V Output
8. Programmable Features
Performance parameters of ZY7007 POL converters
can be programmed via the industry standard I 2 C
communication bus without replacing any
components or rewiring PCB traces. Each
parameter has a default value stored in the volatile
memory registers detailed in Table 1. The setup
registers 00h through 14h are programmed at the
system power-up. When the user programs new
performance parameters, the values in the registers
are overwritten. Upon removal of the input voltage,
the default values are restored.
Table 1. ZY7007 Memory Registers
ZY7007 converters can be programmed using the
Graphical User Interface or directly via the I 2 C bus by
using high and low level commands as described in
the ‘”DPM Programming Manual”.
ZY7007 parameters can be reprogrammed at any
time during the system operation and service except
for the digital filter coefficients, the switching
frequency and the duty cycle limit, that can only be
changed when the POL is turned off.
8.1 Output Voltage
The output voltage can be programmed in the GUI
Output Configuration window shown in the Figure 25
or directly via the I 2 C bus by writing into the VOS
Register
PC1
PC2
PC3
DON
DOF
TC
INT
Content
Protection Configuration 1
Protection Configuration 2
Protection Configuration 3
Turn-On Delay
Turn-Off Delay
Tracking Configuration
Interleave Configuration and
Address
00h
01h
02h
05h
06h
03h
04h
register shown in Figure 26.
Frequency Selection
RUN
ST
VOS
CLS
DCL
B1
B2
B3
C0L
C0H
RUN Register
Status Register
Output Voltage Setpoint
Current Limit Setpoint
Duty Cycle Limit
Dig Controller Denominator z -1
Coefficient
Dig Controller Denominator z -2
Coefficient
Dig Controller Denominator z -3
Coefficient
Dig Controller Numerator z 0
Coefficient, Low Byte
Dig Controller Numerator z 0
15h
16h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
C1L
Coefficient, High Byte
Dig Controller Numerator z -1
0Fh
Figure 25. Output Configuration Window
C1H
Coefficient, Low Byte
Dig Controller Numerator z -1
10h
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
C2L
C2H
C3L
C3H
VOM
IOM
TMP
Coefficient, High Byte
Dig Controller Numerator z -2
Coefficient, Low Byte
Dig Controller Numerator z -2
Coefficient, High Byte
Dig Controller Numerator z -3
Coefficient, High Byte
Dig Controller Numerator z -3
Coefficient, Low Byte
Output Voltage Monitoring
Output Current Monitoring
Temperature Monitoring
11h
12h
13h
14h
17h
18h
19h
VOS7 VOS6 VOS5 VOS4
Bit 7
Bit 7:0 VOS[7:0] , Output voltage setting
00h: corresponds to 0.5000V
01h: corresponds to 0.5125V
…
77h: corresponds to 1.9875V
78h: corresponds to 2.0000V
79h: corresponds to 2.025V
…
F9h: corresponds to 5.225V
FAh: corresponds to 5.250V
FBh: corresponds to 5.300V
…
FFh: corresponds to 5.500V
VOS3
VOS2 VOS1 VOS0
Bit 0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n = Value at POR reset
Figure 26. Output Voltage Setpoint Register VOS
ZD-00245 Rev. 2.6, 01-Jul-10
www.power-one.com
Page 17 of 35
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