CHERRY CS290DWR16

CS290/291
CS290/291
Ignition Controller
Features
Description
The CS290/291 are integrated circuits 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.
■ 40mA Driver
■ Stall Timing
■ Output Current Control
■ Output Clamp
■ Overvoltage Shutdown
Absolute Maximum Ratings
Power supply voltage, VBAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.3V to 22V
Peak Transient Voltage (Load Dump 76V @ 14V VBAT) . . . . . . . . . . . . . . . .90V
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−55°C to 165°C
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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
Package Options
14 Lead PDIP
Gnd
Application Diagram
VBAT
1
BI
MB
CS
AC
NC
25/75
OUT
VIN+
CVS
VIN−
D
Start
VCC
1k
16 Lead SO Wide
330
27k
55
0.1µF
18V
VCC
VIN+
VIN−
Start
D
5k
IN+
IN−
25/75
16k
CVS
3.2M
(optional)
NC
1
NC
MB
BI
AC
CS
25/75
NC
VIN+
OUT
Gnd
CVS
VIN−
D
Start
VCC
4k
CS290
CS291
OUT
200
CS
MB
CADAPTIVE
0.1µF
Ignition
Coil
5k
AC
CRUN
0.1µF
CS290
Gnd
15.3k
BI
200
CSTALL
0.1µF
56
Adjust for 6.5A (max)
Coil Current
0.05
NC
1
NC
NC
BI
MB
CS
AC
TEST
25/75
OUT
Gnd
CVS
VIN−
D
Start
VCC
Consult Factory for Flip Chip
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: [email protected]
Web Site: www.cherry-semi.com
Rev. 3/8/99
1
A
®
Company
CS290/291
Electrical Characteristics: 6V < VB < 16V, −30°C < TA < 125°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
■ Input
Positive Threshold
Negative Threshold
66
%VBAT
VBAT =16V
VBAT = 6V
29
29
Input Impedance
Input = 100µA
70
325
kΩ
VCC Negative Edge Filter
VBAT = 16V
VBAT = 6V
18
4
1100
1100
µs
Negative Edge Delay
(Start Mode)
VBAT = 6V
1.1
3.1
ms
Positive Edge Delay
(Start Mode)
VBAT = 5V
1.06
1.80
ms
Delay Time
(Start High to Output Low)
VBAT = 14V
0
16
µs
Output Current
VBAT = 6V
40
65
mA
Output SOA
VBAT = 22V
40
65
mA
Output Leakage
VBAT = 18V
0
100
uA
Output Clamp Voltage
Output = 10mA
13.7
17
V
Output Clamp Impedance
(Refers to Collector Sense Voltage pin)
Output = 10mA
10
80
Ω
High Frequency On Time
VBAT = 14V
70
80
%
ICC
VBAT = 6V
VBAT = 16V
1.4
5
4.6
19
mA
AC Gain
Adaptive Cap Gain
VBAT = 14V
0.8
1.2
V/V
VCS Regulation
VBAT = 6V
140
210
mV
24.3
31
V
0
11
mV
Hysteresis
%VBAT
9
%VBAT
■ Output Stage
■ General
High Voltage Shutdown
■ Stall
VSTALL Soft Shutdown Voltage
VCS = 6V
Soft Shutdown Frequency
VBAT = 14V
1.0
2.6
Hz
Soft Shutdown Time
VBAT = 6V
13.1
27
ms
Stall to Spark Output Delay
VBAT = 14V
4.5
8.9
ms
Battery Interrupt Time
VBAT = 14V
25
750
ms
Battery Interrupt Recovery Time
(200 Hz)
0
800
ms
Dwell @ 10Hz
(Start Mode)
VBAT = 5V
46
54
%
Start to Output Disable Time
VBAT = 14V
65
135
ms
Excess Dwell @ 20Hz
(Run Mode)
VBAT = 14V
14
20.8
%
■ Dwell
2
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
■ Dwell: continued
VBAT = 14V
14
20.8
%
Reduced Dwell Threshold
16.6
21.0
V
Reduced Dwell Hysteresis
200
800
mV
4.0
6.0
%
Excess Dwell @ 200Hz
(Run Mode)
Reduced Dwell
VBAT = 20V
Package Pin Description
PACKAGE PIN #
14 lead PDIP
PIN SYMBOL
FUNCTION
16 lead SO wide
CS290 CS291
1
6
6
Gnd
Signal Ground.
2
2
3
MB
Master Bias. Sets up operating currents on the IC with external resistor.
3
3
4
AC
Adaptive Capacitor. Follows the 25/75 capacitor. Voltage
trip points control the Output for setting dwell.
4
4
5
25/75
Run Capacitor. Provides 25%/75% charge and discharge
current to an external capacitor for setting dwell.
5
5
NC
VIN+
Input pin +.
6
7
7
VIN−
Input pin −.
7
8
8
Start
Input pin to put device in the “start mode”.
8
9
9
VCC
Supply input voltage.
9
10
10
D
10
11
11
CVS
Collector Voltage Sense. Input for flyback detect.
11
12
12
OUT
Output. Driver for external darlington.
12
1,13,16
1,2,16
NC
No connection.
13
14
14
CS
Current Sense. Feedback for max coil current.
14
15
15
BI
Battery Int. Input for “stall mode” of operation
NC
NC
13
Test
Supply current to output pin.
Factory test pin. Pin should be grounded in customer
application.
Typical Performance Characteristics
Timing Diagram, ICOIL vs. Time
ICOIL (mA)
40
Dwell Time
Normal Run Mode 17.5%
High Voltage Mode 5.0%
Start Mode
50.0%
Current
Limit
30
20
Spark Plug
Fires
10
0
Time
Dwell Time
3
CS290/291
Electrical Characteristics: 6V < VB < 16V, −30°C < TA < 125°C
CS290/291
Package Specification
PACKAGE DIMENSIONS IN mm (INCHES)
PACKAGE THERMAL DATA
Thermal Data
D
Lead Count
14L PDIP
16L SO Wide
Metric
Max
19.69
10.50
Min
18.67
10.10
English
Max
.775
.413
RΘJC
RΘJA
Min
.735
.398
typ
typ
14 Lead
PDIP
48
85
16 Lead
SO Wide
23
105
˚C/W
˚C/W
Plastic DIP (N); 300 mil wide
7.11 (.280)
6.10 (.240)
8.26 (.325)
7.62 (.300)
1.77 (.070)
1.14 (.045)
2.54 (.100) BSC
3.68 (.145)
2.92 (.115)
.356 (.014)
.203 (.008)
0.39 (.015)
MIN.
.558 (.022)
.356 (.014)
REF: JEDEC MS-001
Some 8 and 16 lead
packages may have
1/2 lead at the end
of the package.
All specs are the same.
D
Surface Mount Wide Body (DW); 300 mil wide
7.60 (.299)
7.40 (.291)
10.65 (.419)
10.00 (.394)
0.51 (.020)
0.33 (.013)
1.27 (.050) BSC
2.49 (.098)
2.24 (.088)
1.27 (.050)
0.40 (.016)
2.65 (.104)
2.35 (.093)
0.32 (.013)
0.23 (.009)
D
REF: JEDEC MS-013
0.30 (.012)
0.10 (.004)
Ordering Information
Part Number
CS290N14
CS291N14
CS290DW16
CS290DWR16
CS291DW16
CS291DWR16
Rev. 3/8/99
Description
14L PDIP
14L PDIP
16 Lead SO Wide
16 Lead SO Wide (tape & reel)
16 Lead SO Wide
16 Lead SO Wide (tape & reel)
Cherry Semiconductor Corporation reserves the right to
make changes to the specifications without notice. Please
contact Cherry Semiconductor Corporation for the latest
available information.
4
© 1999 Cherry Semiconductor Corporation