S3052 Datasheet, PDF (9/14 Pages) KODENSHI KOREA CORP. – 5CH BTL Motor Drive IC

S3052
6] Tray driver logic input
Speed Control
R2
R1
VCTL
FWD
-
+
REV
R3
R5
R4
R6
Switching Logic
Driver 1
VOTR(+)
Driver 2
VOTR(-)
FWD [pin6]
L
L
H
H
REV [pin7] VOTR+ [pin10] VOTR- [pin9]
FUNCTION
L
OPEN
OPEN
Open mode
H
L
H
Reverse mode
L
H
L
Forward mode
H
L
L
Brake mode
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.
KSD-I7A002-003
9
SEPT., 2010 REV. 03