CS290 Datasheet, PDF (1/4 Pages) Cherry Semiconductor Corporation – Ignition Controller

CS290/291
Ignition Controller
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.
Features
s 40mA Driver
s Stall Timing
s Output Current Control
s Output Clamp
s Overvoltage Shutdown
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
Application Diagram
V_BAT
1k
330
27k
55
0.1µF
18V
Ignition
Coil
V_IN+
V_IN−
C_RUN
0.1µF
C_ADAPTIVE
0.1µF
V_CC Start D
5k
IN+
CVS
IN−
5k
25/75 ^CS290 OUT
AC
CS
16k
4k
200
MB Gnd BI
3.2M
(optional) 15.3k
C_STALL
0.1µF
200
56
Adjust for 6.5A (max)
Coil Current
0.05
Package Options
14 Lead PDIP
Gnd ¹
MB
AC
25/75
V_IN+
V_IN−
Start
BI
CS
NC
OUT
CVS
D
V_CC
16 Lead SO Wide
CS290 NC ¹
MB
AC
25/75
V_IN+
Gnd
V_IN−
Start
NC
BI
CS
NC
OUT
CVS
D
V_CC
CS291 NC 1
NC
MB
AC
25/75
Gnd
V_IN−
Start
NC
BI
CS
TEST
OUT
CVS
D
V_CC
Consult Factory for Flip Chip
Rev. 3/8/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: [phone] Fax: [phone]
Email: [e-mail]
Web Site: www.cherry-semi.com
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