KSD-I7A004-001

9

SEPT., 2010 REV. 01

5. Tray driver logic input

FWD [pin6]

REV [pin7]

VOTR+ [pin10]

VOTR- [pin9]

FUNCTION

L

L

OPEN

OPEN

Open mode

L

H

L

H

Reverse mode

H

L

H

L

Forward mode

H

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.

VCTL

FWD

REV

VOTR(+)

VOTR(-)

R1

R2

-

+

Speed Control

Switching Logic

Driver 1

Driver 2

R3

R4

R5

R6

S3056