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Features
V
CC
Start
D
IN+
IN
25/75
AC
MB
Gnd
BI
CS
CVS
OUT
CS290
V
BAT
0.1
μ
F
330
27k
1k
55
18V
Ignition
Coil
5k
5k
V
IN+
V
IN
C
RUN
0.1
μ
F
C
ADAPTIVE
μ
F
3.2M
(optional)
15.3k
C
STALL
0.1
μ
200
56
200
4k
16k
0.05
Adjust for 6.5A (max)
Coil Current
I
40mA Driver
Stall Timing
Output Current Control
Output Clamp
Overvoltage Shutdown
I
I
I
I
Package Options
C
Ignition Controller
CS290/291
Description
The CS290/291 are integrated cir-
cuits to be used in the automotive
ignition system. The application
diagram shown below highlights
the CS290. The CS291 is identical
with the differential input replaced
by a single-ended input. The part is
capable of withstanding 90V load
dump transients in the circuit
shown below. The part is also
reverse battery protected.
Application Diagram
Absolute Maximum Ratings
Power supply voltage, V
BAT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.3V to 22V
Peak Transient Voltage (Load Dump 76V @ 14V V
BAT
) . . . . . . . . . . . . . . . .90V
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55°C to 165°C
Operating Junction Temperature, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150°C
Lead Temperature Soldering
Wave Solder (through hole styles only) . . . . . . .10 sec. max, 260°C peak
Reflow (SMD styles only) . . . . . . .60 sec. max above 183°C, 230°C peak
1
Gnd
MB
AC
25/75
V
IN+
V
IN
Start
V
CC
D
CVS
OUT
NC
CS
BI
14 Lead PDIP
1
16 Lead SO Wide
A
Company
Rev. 3/8/99
1
Gnd
MB
AC
25/75
V
IN+
V
IN
Start
V
CC
D
CVS
OUT
NC
CS
BI
NC
NC
1
Gnd
MB
AC
25/75
V
IN
Start
V
CC
D
CVS
OUT
TEST
CS
BI
NC
NC
NC
Consult Factory for Flip Chip
CS290
CS291
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com