CS290

CS290 CHERRY | Alldatasheet

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Technical content

Features

IN− AC MB Gnd BI CS CVS OUTCS290 VBAT 0.1µF 330 27k 18V Ignition Coil VIN+ VIN− CRUN 0.1µF CADAPTIVE 0.1µF 3.2M (optional) 15.3k CSTALL 0.1µF 200 200 16k 0.05Adjust for 6.5A (max) Coil Current I 40mA Driver I Stall Timing I Output Current Control I Output Clamp I Overvoltage Shutdown Package Options CS290/291 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 Lead Temperature Soldering 1Gnd MB AC VIN+ VIN− Start V CC D CVS OUT NC CS BI

14 Lead PDIP

16 Lead SO Wide

A Company ® Rev. 3/8/99 Gnd MB AC VIN+ VIN− Start V CC D CVS OUT NC CS BI NC NC Gnd MB AC VIN− 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

Positive Threshold 66 %V BAT Negative Threshold V BAT =16V 29 %V BAT VBAT = 6V 29 Hysteresis 9% V BAT Input Impedance Input = 100µA 70 325 k Ω VCC Negative Edge Filter V BAT = 16V 18 1100 µs VBAT = 6V 4 1100 I Output Stage Negative Edge Delay V BAT = 6V 1.1 3.1 ms (Start Mode) Positive Edge Delay V BAT = 5V 1.06 1.80 ms (Start Mode) Delay Time V BAT = 14V 0 16 µs (Start High to Output Low) Output Current V BAT = 6V 40 65 mA Output SOA V BAT = 22V 40 65 mA Output Leakage V BAT = 18V 0 100 uA Output Clamp Voltage Output = 10mA 13.7 17 V Output Clamp Impedance Output = 10mA 10 80 Ω (Refers to Collector Sense Voltage pin) High Frequency On Time V BAT = 14V 70 80 % I General ICC VBAT = 6V 1.4 4.6 mA VBAT = 16V 5 19 AC Gain V BAT = 14V 0.8 1.2 V/V Adaptive Cap Gain VCS Regulation V BAT = 6V 140 210 mV High Voltage Shutdown 24.3 31 V I Stall VSTALL Soft Shutdown Voltage V CS = 6V 0 11 mV Soft Shutdown Frequency V BAT = 14V 1.0 2.6 Hz Soft Shutdown Time V BAT = 6V 13.1 27 ms Stall to Spark Output Delay V BAT = 14V 4.5 8.9 ms Battery Interrupt Time V BAT = 14V 25 750 ms Battery Interrupt Recovery Time (200 Hz) 0 800 ms I Dwell Dwell @ 10Hz V BAT = 5V 46 54 % (Start Mode) Start to Output Disable Time V BAT = 14V 65 135 ms Excess Dwell @ 20Hz V BAT = 14V 14 20.8 % (Run Mode) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Electrical Characteristics: 6V < VB < 16V, −30°C < TA < 125°C CS290/291

PACKAGE PIN # PIN SYMBOL FUNCTION 16 lead SO wide 14 lead PDIP CS290 CS291 1 6 6 Gnd Signal Ground. 2 2 3 MB Master Bias. Sets up operating currents on the IC with exter- nal 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.

55 N C V

IN+ Input pin +. 67 7 V IN− Input pin −. 7 8 8 Start Input pin to put device in the “start mode”. 89 9V CC Supply input voltage. 9 10 10 D Supply current to output pin. 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 Factory test pin. Pin should be grounded in customer application. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Electrical Characteristics: 6V < VB < 16V, −30°C < TA < 125°C I Dwell: continued Excess Dwell @ 200Hz V BAT = 14V 14 20.8 % (Run Mode) Reduced Dwell Threshold 16.6 21.0 V Reduced Dwell Hysteresis 200 800 mV Reduced Dwell V BAT = 20V 4.0 6.0 % Typical Performance Characteristics ICOIL (mA) Time Current Limit Spark Plug Fires Dwell Time Dwell Time Normal Run Mode 17.5% High Voltage Mode 5.0% Start Mode 50.0% Timing Diagram, ICOIL vs. Time

4Rev. 3/8/99 © 1999 Cherry Semiconductor Corporation Package Specification PACKAGE DIMENSIONS IN mm (INCHES) D Lead Count Metric English Max Min Max Min 14L PDIP 19.69 18.67 .775 .735 16L SO Wide 10.50 10.10 .413 .398 PACKAGE THERMAL DATA Thermal Data 14 Lead 16 Lead PDIP SO Wide RΘJC typ 48 23 ˚C/W RΘJA typ 85 105 ˚C/W CS290/291

Ordering Information

CS290DWR16 16 Lead SO Wide (tape & reel) CS291DW16 16 Lead SO Wide CS291DWR16 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. Plastic DIP (N); 300 mil wide 0.39 (.015) MIN. 1.14 (.045) D Some 8 and 16 lead packages may have 1/2 lead at the end of the package. All specs are the same. .203 (.008) .356 (.014) REF: JEDEC MS-001 3.68 (.145) 2.92 (.115) 8.26 (.325) 7.62 (.300) 7.11 (.280) 6.10 (.240) .356 (.014) .558 (.022) Surface Mount Wide Body (DW); 300 mil wide 1.27 (.050) BSC 7.60 (.299) 7.40 (.291) 10.65 (.419) 10.00 (.394) D 0.32 (.013) 0.23 (.009) 1.27 (.050) 0.40 (.016) REF: JEDEC MS-013 2.49 (.098) 2.24 (.088) 0.51 (.020) 0.33 (.013) 2.65 (.104) 0.10 (.004)