zm7100 Power-One, zm7100 Datasheet - Page 25

• Manufacturer Part Number: zm7100
• Description: Zm7100 Series Digital Power Manager
• Manufacturer: Power-One

10.5.2
When the crowbar protection is enabled, the CB pin goes to 3V for 1ms. It is capable of supplying 10mA to turn
on a crowbar circuit.
10.5.3
If the RES_N pin is pulled low, the DPM will pull all OK lines low, turning off all POL converters. The POL
converters will enter regular turn-off sequence. Contents of the Ring Buffer will be saved in non-volatile memory.
Releasing the RES_N will first reprogram all POL converters and then turn them on, if the Auto Turn-On is enabled
in the GUI POL Group Configuration Window.
10.6 User Memory
This non-volatile memory block is reserved for users’ notes and it is not related to other functions in the DPM. It
can be used to save application information such as manufacturing data and location, application code,
configuration file version, etc. A total of 1024 Bytes of user memory is provided. The user memory can be
accessed via the GUI System Configuration window shown in Figure 3, or directly via the I
low level commands.
REV. 4.0 JUL 28, 2006
Crowbar Enable
RES_N
FE_EN
DPM
GND
Figure 22. Interface Between DPM and Front End
www.power-one.com
Figure 23. User Memory Window
3.3k
R
R
Q
ZM7100 Series Digital Power Manager
Enable
-VIN
Front End
2
C bus using high and
Page 25 of 29
Data Sheet