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BA6780 Datasheet(PDF) 12 Page - Rohm

Part # BA6780
Description  2-channel driver for CD changers
PDF  14 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BA6780 Datasheet(HTML) 12 Page - Rohm

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BA6780 / BA6780FP-Y
Optical disc ICs
Input / output truth table
<Reversible drive>
Mode
Forward mode
Reverse mode
Brake mode
Open mode
FIN
L
H
H
L
RIN
H
L
H
L
OUT (
+)
H
L
L
OPEN
OUT (
−)
L
H
L
OPEN
<Governor drive>
Mode
Forward mode
Reverse mode
Brake mode
Open mode
FIN
L
H
H
L
RIN
H
L
H
L
OUT (
+)
H
L
VCC / 2
OPEN
OUT (
−)
L
H
VCC / 2
OPEN
Using the load current detector output pin (pin 4)
Refer to the example circuit on the right for the connection method. The VRESET value is determined as follows :
IDET
=
IO × RDET
3.2k
Ω
VRESET
=VDD
−IDET × RRESET
∴ VRESET=VDD
− IO × RDET × RRESET
3.2k
Ω
(RDET is the load current detector resistance, refer to the application circuit)
4
IDET
pin6 (BA6780FP-Y).
RRESET
VRESET
VDD



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