Atmel Dual Triple DMOS Output Drivers with Serial Input and PWM Control ATA6831, Application Note

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4
9120A–AUTO–01/08
ATA6831/ATA6832 Driver ICs
Figure 4-1. ATA6831-DK Application Board Schematic
V
S1
V
S2
V
CC
V
CC
V
S
V
S
V
CC
1 2 3 4 5 6 7 8 9
10
22 21 20 19 18 17 16 15 14
13 12 11
25 24 23
R2
PWM
OUT3
OUT2
OUT3
6
1
2
12
13
15
16
DO
7
CS
3
CLK
5
DI
4
R3 R4 R5
S3
MB12
R8
3.3 k
Ω
R6
GND
VBATT 13V (6 to 40V)
R1
D2
VCC
200
Ω
C3
C4
100 nF
10 µF
C1
C2
U3
LM2936
S1 S2
10 k
Ω
10 k
Ω
10 k
Ω
1 k
Ω
10 k
Ω
BYV28
D1
Serial Interface
Input
Regi
st
er
O
u
tp
ut
Regi
st
er
H S
3
L
PP
S
3
H
S
2
L S 2
H S 1
L S 1
S S R
O
OP
P
PP
L D
L
HL
H
H
L
P S F
I N H
O V L
n. u.
H S 3
L S 3
H S
2
L S 2
H S 1
L S 1
T P
C
S I
n.
n.
n.
n.
n.
S3
3
2
2
1
1
OUT1 OUT2 OUT3
X1
Ro
w
Co
n
n
ecto
r 1
GND
PWM
GND
Ro
w
Connecto
r 2
X2
Detect
F
ault
Detect
F
ault
Detect
F
ault
Detect
F
ault
Detect
F
ault
Detect
F
ault
Contr
ol
logic
Char
g
e
logic
A
T
A6831
A
T
A6832
UV
pr
otection
Thermal
pr
otection
P
o
wer
-on
Reset
11 10
GND
100 nF
100 µF
8
GND
14
GND
17
GND
MB12
MB32
MB21
D7a
D4
D3
D7b
18
9
S4
MB23
R9
3.3 k
Ω
MB23
D8a
D6
D5
D8b