BD71801GWL Datasheet, PDF (12/79 Pages) Rohm – Power Management LSI for Mobile Phone

BD71801GWL
Power On Sequence
Datasheet
Figure 6. Power ON sequence (Start factor is PWRON)
The short detection circuit is built in the SWREG1,2,3,4 and 5 outputs.
When the output shorted state continued more than 100ms, the all LDO and SWREG will be OFF.
If the LDO and SWREG are turned off by the external pin (EN_O7) or I2C command, the short detection circuit is not detected.
The SWREG1, 2, 3, and 4 must be used external parts when not used SWREG’s output voltage.
If it is not used the external parts in these SWREG, the short detector will detect when running the start up sequence.
(It is possible when these SWREG turn off by the I2C command after start up sequence.)
○Product structure：Silicon monolithic integrated circuit
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TSZ22111・15・001
○This product is not designed protection against radioactive rays
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TSZ02201-0B1B0AB00010-1-2
18.Nov.2013 Rev.002