ZM7304G-65503Y-Q1 POWER-ONE [Power-One], ZM7304G-65503Y-Q1 Datasheet - Page 16

• Manufacturer Part Number: ZM7304G-65503Y-Q1
• Description: Digital Power Manager
• Manufacturer: POWER-ONE [Power-One]

Where:
T
T
T
T
n
n
The programming data (DPM and POL setup registers and the user memory) can be preloaded into DPMs by
Power-One or the DPMs can be programmed by the user via the GUI, I
The DPMs can be programmed either before or after installation on a host board.
To modify POL converter settings, the user can directly access the registers of a POL converter via the I
bypassing DPM’s POL setup registers.
appropriate SD commands to read / write from / into the registers of a POL converter. Writing into these registers
is limited by the hardware (LCK_N) and/or software write protections. Since POL converters do not have non-
volatile memory, data written directly into POL converter registers will be lost when the input voltage is removed.
10.4
10.4.1 POL Monitoring
Z-One™ POL converters continuously monitor their own performance parameters such as output voltage, output
current, and temperature. The monitored parameters are stored locally in the POL converters and updated every
1ms. If monitoring feature is enabled, the DPM will be continuously copying status and parametric data from POL
converters into DPM’s monitoring data registers.
The monitoring is enabled by checking the appropriate Retrieve Monitoring bits in the GUI Group Configuration
window shown in Figure 10 or directly via the I
If the status monitoring is enabled, the status of each protection (overcurrent, overvoltage, etc.) is being reported.
If the parametric monitoring is enabled, then real-time values of voltage, current, and temperature are being
reported.
Status and parametric monitoring data of a single POL converter and groups of POL converters can be examined
in the GUI IBS Monitoring Window shown in Figure 11 or directly via the I
data for each group of POL converters is presented in the Group Status block in the left top corner of the window.
Parametric data for individual POL converters is shown in Voltage [V], Current [A], and Temp [T] screens.
DPMs also monitor and report programming status of each POL converter and results of CRC operations.
10.4.2 Monitoring of Auxiliary Devices
The DPM can read status information of the Auxiliary Devices via the PG0…PG3 inputs. The PG0…PG3 are
digital 3.3V compliant inputs with internal pull-up resistors. Logic high input on a PGX pin should correspond to
normal operation of an Auxiliary Device.
Status monitoring data of Auxiliary Devices is stored in the DPM and displayed in the IBS Monitoring Window
shown in Figure 11.
REV. 3.3 NOV 26, 2007
POL
AD
PROGR
INIT
POL
AD
-
-
-
-
-
-
Monitoring
time interval from the instant when the DPM supply voltage exceeds DPM’s UVLO threshold until
the DPM issues the turn-on command. If the Auto Power-Up is enabled, and the turn-on delay is
set to zero, the output voltages start ramping up at the end of T
DPM initialization interval after the DPM supply voltage exceeds the UVLO threshold.
T
Time required for programming and verifying of one POL converter. T
Time required for programming and verifying of one Auxiliary Device. T
Number of POL converters in the system.
Number of Auxiliary Devices in the system.
INIT
=11.5ms.
www.power-one.com
The I
2
C bus by specific commands.
2
C commands are translated by the DPM and converted into
ZM7300G Series Digital Power Manager
2
2
C bus, or JTAG programming interface.
C bus using specific commands. Status
PROGR
interval
POL
AD
=26.5ms.
=7.5ms.
Page 16 of 32
Data Sheet
2
C bus,