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SOFTWARE CONTROL WITH LTpowerPlay
Table 7. Critical Register Values for Default Demo Board Design
REGISTER ADDRESS
0x06
FET_BAD_FAULT_TIMEOUT
0x07
GPIO_CONFIG[5-4]
0x11
ILIM_ADJUST[7-5]
NAME
VALUE
COMMENT
0
Disable FET bad timeout to ensure startup into 20,000μF. Turn on takes around 400ms
to 500ms while max FET_BAD_TIMEOUT is 255ms.
00
Power good must be enabled to ensure BYPASS channel only turns on when power is
good. This setting is essential for Low Stress Staged Start configuration
00
Current limit has been adjusted to the lowest value to minimize power dissipation in
the sense resistors. Increasing this will change the current limit as well as increase the
power dissipation in the MOSFETs.
Figure 3. DC2442A Demo Board Connected to DC1613 I
DEMO MANUAL DC2442A
2
C-to-USB Converter
dc2442af
7
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