Am4964, Truth table – Diodes AM4964 User Manual
Page 4
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AM4964
Document number: DS37241 Rev. 2 - 2
4 of 21
June 2014
© Diodes Incorporated
AM4964
A Product Line of
Diodes Incorporated
N
E
W
P
R
O
D
U
C
T
Functional Block Diagram
Thermal
Shutdown
Control
Circuit
Triangle Wave
VCC
RADJ
VMIN
PWM
CF
OUT1
OUT2
FG
3
Pre-
driver
V+
4
5
6
7
8
9
14
19
V+
V+
V+
V+
104k
42k
90k
54k
51k
56k
93k
18k
17k
RT
TL
10
TH
17
Vreg
Lock Shutdown
and
Auto Restart
Hysteresis Amp
CT
IN +
IN -
PGND
11
13
15
2
TA
1.25V
HB
18
12
SGND
16
Truth Table
Items
IN-
IN+
CF
CT
OUT1
OUT2
FG
Mode
1
H
L
L
L
H
L
L
Rotation
2
L
H
L
H
Off
PWM Off
3
H
L
H
Off
L
L
Rotation Recirculation
4
L
H
L
Off
Off
PWM Off
5
H
L
L
H
H
Off
L
Lock Protection
6
L
H
Off
H
Off
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