CA3165 Intersil, CA3165 Datasheet

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CA3165

Manufacturer Part Number
CA3165
Description
Electronic Switching Circuit
Manufacturer
Intersil
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
CA3165
Quantity:
2 000
May 1999
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright
Pinouts
Features
• Switching Initiated by Damping of Internal Oscillator
• Proximity Sensing of Rotational Motion
[ /Title (CA3165)
• Repeatable Timing of Switching States
/Subject (Electronic Switching Circuit)
• Five Outputs - Two Complementary Pairs and One
/Author ()
/Keywords ()
• Two Outputs - One Complementary Pair CA3165E
/Creator ()
/DOCINFO pdfmark
Part Number Information
[ /PageMode /UseOutlines
/DOCVIEW pdfmark
CA3165E
CA3165E1
Non-Inverting Output CA3165E1
NUMBER
PART
©
Harris Corporation 1999
OUTPUT
OSC FB
SENSE
GND
TEMPERATURE
-40
-40
1
2
3
4
o
o
C to +85
C to +85
CA3165 (PDIP)
TOP VIEW
o
o
C
C
8
7
6
5
8 Lead Plastic DIP
14 Lead Plastic DIP
FB_RF
V+
DET_OUT
INV_OUT
PACKAGE
10-25
Description
The CA3165 is a single chip electronic switching circuit
intended primarily for ignition applications. It includes an
oscillator that is amplitude-modulated by the rotor teeth of a
distributor, a detector that develops the positive going modu-
lation envelope, a Schmitt trigger that eliminates switching
uncertainties. Both types include two complementary high
current switched outputs for driving power transistors requir-
ing up to 120mA. The CA3165E also includes two comple-
mentary low current outputs that incorporate internal current
limiting and a non-inverting output amplifier with uncommit-
ted input capable of switching 27mA.
The CA3165 is supplied in the 8 lead dual-in-line plastic
package (E suffix) and in the 14 lead dual-in-line plastic
package (E1 suffix).
+SIGNAL
INV_OUT
–SIGNAL
OUTPUT
OSC FB
SENSE
GND
Electronic Switching Circuit
1
2
3
4
5
6
7
CA3165 (PDIP)
CA3165
TOP VIEW
14
13
12
10
11
9
8
NC
FB_R
V+
NC
DET_OUT
AMPL_IN
AMPL_OUT
File Number
F
1278.3

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CA3165 Summary of contents

Page 1

... Schmitt trigger that eliminates switching uncertainties. Both types include two complementary high current switched outputs for driving power transistors requir- ing up to 120mA. The CA3165E also includes two comple- mentary low current outputs that incorporate internal current limiting and a non-inverting output amplifier with uncommit- ted input capable of switching 27mA ...

Page 2

... FEEDBACK RESISTOR OSCILLATOR (6k 0.5 220 R REPRESENTS L = 100 H ROTOR LOADING Q 53 1500 pF OSCILLATOR CONDITION TERMINAL 10 Unloaded Low Loaded High FIGURE 1. FUNCTIONAL BLOCK DIAGRAM FOR CA3165E1 0 FEEDBACK RESISTOR OSCILLATOR (6.49k ) 1 2 220 R † REPRESENTS L = 100 † A ROTOR LOADING Q 53 1500 pF OSCILLATOR ...

Page 3

... + 600mW A o Above T = +55 A Device Dissipation Plastic DIP Package 14 Lead + 950mW A o Above 13V, Measured in the circuit of Figure 5 (CA3165E1) or Figure 6 (CA3165E) CA3165E1 TEST CONDITIONS MIN TYP Dwell - 18.4 Spark - 17.5 Dwell 12.8 - Spark - - Dwell - - Dwell ...

Page 4

... 3 Q10 R10 0.35 Q11 Q13 Q12 R16 R11 R12 Q15 2.5 2.9 1.8 R15 Q14 1 R14 R13 0.1 Q16 2 Q17 FIGURE 3. SCHEMATIC DIAGRAM FOR CA3165E1 ALL RESISTANCES ARE IN KILOHMS 0.18 0.18 0.18 0. 6.2 0 R11 0.35 Q10 Q9 Q13 Q11 R12 Q12 1.8 ...

Page 5

... Application Information Figure 5 and Figure 6 show the application of the CA3165 in a typical ignition system. TERMINAL CA3165E1 CA3165E 1 1 Oscillator Feedback Resistor 220 Protective Resistor To Tank Circuit 3 3 Ground 4 4 Direct Output - Direct Output - Low Current - Not Connected 6 5 Inverted High Current Output ...

Page 6

... FIGURE 6. TYPICAL IGNITION SYSTEM USING THE CA3165E Application Information Figure 5 and Figure 6 show the application of the CA3165 in a typical ignition system. The oscillator on the chip operates at about 400kHz as determined by the tuned circuit L1, C2. The amplitude of the oscillation is detected on the chip and ...

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