BU9829GUL-W_12 Datasheet, PDF (20/27 Pages) Rohm – WLCSP EEPROM

BU9829GUL-W (16Kbit)
Datasheet
○Package power dissipation
Package power dissipation of BU9829GUL-W is 220mW. It is the value at environmental temperature is 25℃. In the case
of use at 25℃ or higher, degradation is done at 2.2W/℃. If output current is very large, please take care of package
power dissipation.
300
200
100
0
-50 -25 0 25 50 75 100 125 150
周 ^T囲^a温^[度^℃(^]Ta)　[ ℃ ]
Figure 58. Package power dissipation
○Large Current Protection Circuit
VOUT terminal has large current protection circuit. This circuit protects IC from large current. However, this protection
circuit effective unexpected accident. Please avoid continual use of protection circuit.
3
2.5
2
1.5
1
0.5
0
0
5
10
15
20
VOUT load current [mA]
Figure 59. Large Current Protection Circuit
●POR circuit
This IC has a POR (Power On Reset) circuit as mistake write countermeasure. After POR action, it gets in write disable.
The POR circuit is valid only when power is ON, and does not work when power is OFF. When power is ON, if the
recommended conditions of the following tR, tOFF, and Vbot are not satisfied, it may become write enable status owing to
noise the likes.
tR
Vｃｃ1
tOFF
Vbot
0
Figure 60. Rise waveform
Recommended conditions of tR, tOFF, Vbot
tR
tOFF
Vbot
10ms or below 10ms or higher 0.3V or below
100ms or below 10ms or higher 0.2V or below
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TSZ22111・15・001
20/23
TSZ02201-0R2R0G100400-1-2
28.AUG.2012 Rev.001