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BD6083GUL
Datasheet
● DC / DC
Start
DC/DC circuit operates when any LED turns ON. (DCDCFON=0)
When the start of the DC/DC circuit is done, it has the soft start function to prevent a rush current.
Force of VBAT and VIO is to go as follows.
VBAT
VIO
T VIOON=min 0.1ms
T VIOOFF=min 0.1ms
RESETB
T RSTB=min 0.1ms
T RST=min 0ms
EN (*)
T SO FT
VOUT
LEDcurrent
(*) An EN signal means the following in the upper figure.
EN = “MLEDEN” or “W ＊ EN”
(= LED The LED lighting control of a setup of connection VOUT)
But, as for Ta > T TSD (typ : 195° C), a protection function functions, and an EN signal doesn't become effective.
T SOFT changes by the capacitor connected to VOUT and inside OSC.
T SOFT is Typ 200 μ s (when the output capacitor of VOUT =1.0 μ F).
Figure 10.
Over Voltage protection / Over Current protection
DC/DC circuit output (VOUT) is equipped with the over-voltage protection and the over current protection function.
A VOUT over-voltage detection voltage is about 5.6V(typ). (VOUT at the time of rise in a voltage)
A detection voltage has a hysteresis, and a detection release voltage is about 5.4V (typ).
And, when VOUT output short to ground, input current of the battery terminal is limited by an over current protection
function.
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? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
25/42
TSZ02201-0G3G0C200100-1-2
05.Oct.2012 Rev.001
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