CS464
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
Flip-Chip
(Bump #)
1
2
3
4
5
6
7
8
9
10
11
12
13
16 Lead
SO Wide
13
15
16
1
2,3,6,7,10,14
4
5
8
9
11
12
OUT
S
CS
MB
NC
CR
IN+
IN-
Gnd
V
CC
D
IC
TEST
Output control of darlington driver.
Current sense feedback input.
Stall timer capacitor.
Master current bias resistor.
No connection.
Reset capacitor.
Input control.
Negative input control (grounded in 16 Lead SO package).
Ground.
Input supply voltage.
Darlington drive supply input.
Input collector voltage sense.
Test bump, grounded.
Block Diagram
V
BAT
CV
CC
0.1mF
RV
CC
330W
RMB
10.7k
MB
VR
CR
CR
0.1mF
CS
CS
0.47mF
V
CC
VR
8.4mA
VR
VR
25%
149mA
149k
P2
PNP Current Source Bias
VR
Power
Supply
Gnd
VBG
OVS
+
-
25%
33.6mA
25%
1.1mA
25%*Stall
31.9mA
RD
55W, 5W
INPUT
RIN+ IN+
VIN
10k
Negative
Edge
Filter
LOGIC1
C
D
VR
8k
V
REF
CR
BG
CS
63.7k
R
CR
BG
5k
+
-
Q
25%
CR > V
REF
STALL
I
LIMIT
Combinational
Logic
To CR, CS Current Sources
VR
D
ZD
18V
DWELL
-
+
-
Spark Plug
P1
OUT
N5
OVS
N4
13.7V
Clamp
IC
ND1
ND2
RIC2
4k
VR
+
100k
+
-
N1
BG
N2
N3
2.55k
S
0.63k
RIC1
200W
+
-
BG
7k
+
-
Adjust for 6.5A Coil Current
RS1
56W
RS2
0.05W, 5W
12k
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
