CS290N14

CS290/291 CS290/291 Ignition Controller 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. Features s 40mA Driver s Stall Timing s Output Current Control s Output Clamp s 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 MB AC 1 BI CS NC OUT CVS D VCC Application Diagram 25/75 VIN+ VIN− Start VBAT 330 27k 1k 16 Lead SO Wide 55 CS290 18V Ignition Coil NC MB AC 25/75 VIN+ 1 NC BI CS NC OUT CVS D VCC 0.1µF VCC VIN+ VIN− 5k IN+ IN− 25/75 AC MB CRUN 0.1µF 3.2M (optional) Start D CVS 16k Gnd VIN− Start 4k 5k CS290 OUT CS 200 CS291 NC NC MB AC 1 NC BI CS TEST OUT CVS D VCC Gnd BI CSTALL 0.1µF 200 25/75 Gnd CADAPTIVE 0.1µF 15.3k 56 Adjust for 6.5A (max) Coil Current 0.05 VIN− Start 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: info@cherry-semi.com 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 s Input Positive Threshold Negative Threshold Hysteresis Input Impedance VCC Negative Edge Filter s Output Stage Negative Edge Delay (Start Mode) Positive Edge Delay (Start Mode) Delay Time (Start High to Output Low) Output Current Output SOA Output Leakage Output Clamp Voltage Output Clamp Impedance (Refers to Collector Sense Voltage pin) High Frequency On Time s General ICC AC Gain Adaptive Cap Gain VCS Regulation High Voltage Shutdown s Stall VSTALL Soft Shutdown Voltage Soft Shutdown Frequency Soft Shutdown Time Stall to Spark Output Delay Battery Interrupt Time Battery Interrupt Recovery Time s Dwell Dwell @ 10Hz (Start Mode) Start to Output Disable Time Excess Dwell @ 20Hz (Run Mode) VBAT = 5V VBAT = 14V VBAT = 14V 46 65 14 54 135 20.8 % ms % VCS = 6V VBAT = 14V VBAT = 6V VBAT = 14V VBAT = 14V (200 Hz) 0 1.0 13.1 4.5 25 0 11 2.6 27 8.9 750 800 mV Hz ms ms ms ms VBAT = 6V VBAT = 16V VBAT = 14V VBAT = 6V 1.4 5 0.8 140 24.3 4.6 19 1.2 210 31 mA V/V mV V VBAT = 6V VBAT = 5V VBAT = 14V VBAT = 6V VBAT = 22V VBAT = 18V Output = 10mA Output = 10mA VBAT = 14V 1.1 1.06 0 40 40 0 13.7 10 70 3.1 1.80 16 65 65 100 17 80 80 ms ms µs mA mA uA V Ω % Input = 100µA VBAT = 16V VBAT = 6V VBAT =16V VBAT = 6V 29 29 9 70 18 4 325 1100 1100 66 %VBAT %VBAT %VBAT kΩ µs 2 Electrical Characteristics: 6V < VB < 16V, −30°C < TA < 125°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CS290/291 s Dwell: continued Excess Dwell @ 200Hz (Run Mode) Reduced Dwell Threshold Reduced Dwell Hysteresis Reduced Dwell VBAT = 20V Package Pin Description PACKAGE PIN # PIN SYMBOL FUNCTION VBAT = 14V 14 16.6 200 4.0 20.8 21.0 800 6.0 % V mV % 14 lead PDIP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NC 16 lead SO wide CS290 CS291 6 2 3 4 5 7 8 9 10 11 12 1,13,16 14 15 NC 6 3 4 5 NC 7 8 9 10 11 12 1,2,16 14 15 13 Gnd MB AC 25/75 VIN+ VIN− Start VCC D CVS OUT NC CS BI Test Signal Ground. Master Bias. Sets up operating currents on the IC with external resistor. Adaptive Capacitor. Follows the 25/75 capacitor. Voltage trip points control the Output for setting dwell. Run Capacitor. Provides 25%/75% charge and discharge current to an external capacitor for setting dwell. Input pin +. Input pin −. Input pin to put device in the “start mode”. Supply input voltage. Supply current to output pin. Collector Voltage Sense. Input for flyback detect. Output. Driver for external darlington. No connection. Current Sense. Feedback for max coil current. Battery Int. Input for “stall mode” of operation Factory test pin. Pin should be grounded in customer application. Typical Performance Characteristics Timing Diagram, ICOIL vs. Time 40 Dwell Time Normal Run Mode 17.5% High Voltage Mode 5.0% Start Mode 50.0% Current Limit ICOIL (mA) 30 20 10 0 Spark Plug Fires Time Dwell Time 3 CS290/291 Package Specification PACKAGE DIMENSIONS IN mm (INCHES) PACKAGE 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 Min .735 .398 Thermal Data RΘJC RΘJA 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) 3.68 (.145) 2.92 (.115) 1.77 (.070) 1.14 (.045) 2.54 (.100) BSC .356 (.014) .203 (.008) 0.39 (.015) MIN. .558 (.022) .356 (.014) Some 8 and 16 lead packages may have 1/2 lead at the end of the package. All specs are the same. REF: JEDEC MS-001 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) 2.65 (.104) 2.35 (.093) 1.27 (.050) 0.40 (.016) REF: JEDEC MS-013 0.32 (.013) 0.23 (.009) D 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) 4 Cherry Semiconductor Corporation reserves the right to make changes to the specifications without notice. Please contact Cherry Semiconductor Corporation for the latest available information. © 1999 Cherry Semiconductor Corporation