BU16024KV Datasheet, PDF (13/18 Pages) Rohm – 1 for input 1 output buffer with Termination sense correspondence

BU16024KV
Technical Note
1). Y and Z terminal ESD Diode notice.
Y and Z terminals are connected ESD diode.
When VCC＋0.4 < AVCC.
BU16024KV flow leak current from AVCC to VCC.
In order to pass the compliance test.
You must use mandatory application, refer Figure 6-1 for “Repeater” or “output Buffer” application.
If you use “Repeater” or “output Buffer”
power down
controler
10kΩ
VCC
10kΩ
10kΩ
TEST0
TEST2
TEST1
Figure 6-1 Leak current control
2). HPD_SINK Pull down resistance.
HPD_SINK is a 5V tolerant structure shown in Figure 6-2.
It needs some drive current to pull down HPD_SINK "H" to "L"(max10uA@HPD_SINK=2V).
So to pull down HPD_SINK, please use 10kΩ(or under 10kΩ) resistor.
VCC
BU16024KV
AVCC
HPD_SINK
10kΩ
Figure 6-2 HPD_SINK I/O schematic
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13/17
2009.05 - Rev.D