CS464
CS464
Single Coil Predriver
Description
The CS464, Single Coil Predriver,
provides interface control for the
current through a primary igni-
tion coil. Features include out-
put current control, input nega-
tive edge filtering, stall timing
and over-voltage shutdown. The
IC is available as a bumped flip-
chip or packaged in a 16 lead SO
wide package.
Features
s
40mA Driver
s
Stall Timing
s
Output Clamp
s
Overvoltage Shutdown
Absolute Maximum Ratings
Lead Temperature Soldering
Reflow (SMD styles only)...........60 sec. max above 183¡C, 230¡C peak
Continuous Power Supply @ V
BAT
, -40¡C < T
A
< 55¡C .............5V to 24V
Continuous Power Supply @ V
BAT
, 55¡C < T
A
< 140¡C.............6V to 18V
Frequency .......................................................................................5 to 400Hz
Over the extended ranges of temperature, voltage, and frequency not
covered by normal operating conditions, low frequency and run related
functions are allowed an additional 20% on specification limits. The
degradation shall not be permanent, and upon returning to normal
operating conditions shall be within the specification limits. Non-nor-
mal ÒRun ModeÓ operation is 45 hours cumulative life not exceeding a
continuous run time of 10 minutes with a 10 minute ÒOffÓ time follow-
ing each successive operating cycle.
Package Options
16 Lead SO Wide
MB
1
NC
NC
CR
IN+
CS
S
NC
OUT
IC
D
NC
V
CC
Application Diagram
NC
NC
Gnd
V
BAT
Flip-Chip
RIC2
MB
NC
NC
CS
S
NC
OUT
IC
D
NC
V
CC
4k
RIN+
V
IN
10k
RMB
10.7k
40Hz
CR
0.1mF
50V
CR
IN+
NC
NC
Gnd
CS464
N1
RD, 55W, 5W
RV
CC
, 330
CV
CC
0.1mF
12V
0V
ZD
18V
RIC1
200
CS
0.47mF
50V
RS1
56
N2
Adjust for 6.5A Coil Current
RS2
0.05W, 5W
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
Rev. 3/1/99
1
A
¨
Company
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
