S3056
5. Tray driver logic input
Speed Control
Driver 1
R2
VOTR(+)
VOTR(-)
-
R1
+
VCTL
REV
FWD
R3
Driver 2
R5
R6
R4
Switching Logic
FWD [pin6]
REV [pin7]
VOTR+ [pin10]
VOTR- [pin9]
FUNCTION
L
L
L
H
L
OPEN
OPEN
Open mode
Reverse mode
Forward mode
Brake mode
L
H
L
H
L
L
H
H
H
Input circuit of pin6 [FWD] and pin7 [REV] is designed to avoid simultaneous activation of upper and
lower output power TR. however, in order to improve reliability, apply motor forward/reverse
input once through open mode. We recommend that the time period of open state is longer than 10msec.
“H” side output voltage on output voltage [VOL+, VOL-] varies depending on output control terminal
for tray. [pin21]“H” side output voltage is set three times (9.2dB typ.) VTCL [pin21], and “L” side
output voltage is equal to output saturation voltage.
9
KSD-I7A004-001
SEPT., 2010 REV. 01
KODENSHI [ KODENSHI KOREA CORP. ]
