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IC BLOCK DIAGRAM
IC, BA5915FP
LEVEL + SH
LEVEL: sir}
<
L_wy—s
IC, M5291FP
Switch collector
Switch emitter
External capacitance
for oscillation
IC, LB1644
Ground (4)
10K
23
=
f
f
T.S.D: Thermal shut-down
Resistors are in units of Q.
8) Driver
Peak currect
detection
&) Power suppl
1.17V
@)
pee
REF. VOL
(S) Comparator input
vec1()
33
OUT
OUT2
OUT3 OUT4
O—®
&}-—()
A
=
a r
as So
@Qvec2
'
TRUH TABLE
@
ra
re
o
IN1 | IN2|QUT1 | OUT2| IN3| IN4 | OUTS | OUTS
=f
(il
eo
{oi}
.
tc
[ofo[e
L
t
¥|5
S|
¥
t
1fo;H#|tftlo;H
to
=
ra
TSB
a
0
1
L
H
0
1
L
H
1
[4
E
L
ii
4
L
a
'<
a
NS
KN
INPUT
OUTPUT
MODE
=
=
<—*
—*
INI | IN2.3]IN4[OUT1
|OUT2|OUTS[OUT4|
MI
M2
;
;
0
0
oft
L
L
L_|
BRAKE | BRAKE
a
1
0
0
[4H
L
L
L__|FF/REW|
BRAKE
IN PUT LOGIC
IN PUT LOGIC
(0) 1N4
0
1
1
L
H
L
L|REW/EF|
BRAKE
1
1
o[L
L
H
L_|
BRAKE | FF/REW
+
0
0
1
L
L
L
H__|
BRAKE | REW/FF
1)
OW
1
1
1
L
L
L
L__|
BRAKE | BRAKE
5 a a a
i
nj
IN2
VZ
VZ2_IN3
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