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| (R) VB326SP HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C. TYPE VB326SP s s Vcl 360V Icl 10A ICC 150mA PRIMARY COIL VOLTAGE INTERNALLY SET COIL CURRENT LIMIT INTERNALLY SET s LOGIC LEVEL COMPATIBLE INPUT s DRIVING CURRENT QUASI PROPORTIONAL TO COLLECTOR CURRENT s s 10 SINGLE FLAG-ON COIL CURRENT LOW VOLTAGE CLAMP THERMAL SHUTDOWN 1 PowerSO-10TM DESCRIPTION The VB326SP is a high voltage power integrated circuit made using the STMicroelectronics VIPowerTM M1-3 technology, with vertical current flow power darlington and logic level compatible driving circuit. The enable pin allows to externally block the switch when the input is on. Built-in protection circuit for coil current limiting and collector voltage clamping allows the device to be used as smart, high voltage, high current interface BLOCK DIAGRAM VCC in advanced electronic ignition system. If the input signal from the micro happens to remain high, the device protects itself against over-heating by forcing collector current to smooth decrease (low voltage clamp feature) and no undesidered spark occurs (see figure 4). BD HVC VIN DRIVER QUASI PROP. BASE CURRENT DIAGNOSTIC OUTPUT VR LIMITER RSENSE VCC VF1 REFERENCE VLIM VTH THERMAL PROTECTION SN E LGND GND November 2003 1/9 VB326SP ABSOLUTE MAXIMUM RATING Symbol HVc IC IC(gnd) VCC Is Is(gnd) VIN IIN fIN VOUT(flag) IOUT(flag) Pmax Es/b VESD VESD VESD IBD VBD Tj Tstg VE IE Parameter Collector voltage (Internally limited) Collector current (Internally limited) DC current on Emitter Power Driving stage supply voltage Driving circuitry supply current DC current on Ground pin Input voltage Maximum Input Current Logic Input Frequency in Operative Mode Output Voltage Primary Threshold Current Level Flag Output Current Power Dissipation (Tc=25C) Self Clamped Energy during Output Power Clamping (See figure 2) ESD voltage (HVc pin) ESD voltage (Enable pin) ESD voltage (Other pins) Input Darlington Base Current Input Darlington Base Voltage Operating Junction Temperature Storage temperature Range Maximum Enable Voltage Maximum Enable Current Value -0.3 to Vclamp 10 10.5 -0.3 to 7 200 1 -0.3 to VCC + 0.3 100 DC to 150 -0.3 to VCC + 0.3 100 125 275 4 + 1.5 ; -2 2 150 Internally limited -40 to 150 -55 to 150 -0.3 to 5.5 150 Unit V A A V mA A V mA Hz V mA W mJ KV KV KV mA V C C V A THERMAL DATA Symbol Rthj-case Rthj-amb Parameter Thermal resistance junction-case Thermal resistance junction-ambient (MAX) (MAX) Value 1 51 Unit C/W C/W PIN FUNCTION No 1-5 2-3-4 6 7 8 9 10 TAB Name LGND GND E VCC BD INPUT FLAG HVC Function Signal Ground Emitter Power Ground Enable (*) Logic Supply Voltage Base Darlington Logic input channel (Internal Pull Down) Diagnostic Output Signal (Open Emitter) Primary Coil Output Driver (Open Collector) (*) When grounded the Input is Enabled CONNECTION DIAGRAM (TOP VIEW) Pin 1 and Pin 5 must be externally connected to Pins 2/4. E VCC BD INPUT FLAG 6 7 8 9 10 TAB 5 4 3 2 1 LGND GND GND GND LGND HVC 2/9 VB326SP ELECTRICAL CHARACTERISTICS (5.3V < Vbat < 24V; VCC=5V 10%; -40C < Tj < 125C; Rcoil=580m; Lcoil=3.75mH unless otherwise specified; See note 1) Symbol Vcl Vlcl Vce(sat) ICC(stdby) ICC ICC(peak) VCC Icl Ic(off) TIc_ctr VINH VINL VIN(hyst) IINH IINL IINpd VdiagH VdiagL IdiagTH IdiagTD Idiag Idiag(leak) VF Es/b tON tOFF Tsd VEH VEL Parameter High Voltage Clamp Low Voltage Clamp Power Stage Saturation Voltage Stand-by Supply Current DC Logic Current Peak DC Logic Current during On Phase DC Logic Voltage Coil Current Limit Output Off State Current Thermal Temperature Output Current Control High Level Input Voltage Low Level Input Voltage Input Threshold Hysteresis High Level Input Current Low Level Input Current Input Active Pull Down High Level Flag Output Voltage Low Level Flag Output Voltage Coil Current Level Threshold Coil Current Level Threshold Drift High Level Flag Output Current Leakage Current on Flag Output Antiparallel Diode Forward Voltage Single Pulse Avalanche Energy Turn-on time Turn-off time Thermal shut-down intervention High Level Enable Voltage Low Level Enable Voltage Test Conditions Icoil=6.5A Icoil=6.5A; Tj=Tsd IC=6A; VIN=4V IN=Off Vb=16V; IC=6.5A; f=100Hz; Load = Coil; VCC=5.5V IC=6.5A 4.5 -40C < Tj < 125C (See note 2) IN=Off; VHVC=24V; VCC=5V; Tj=25C OUT=On VCC=4.5V VCC=5.5V VIN=4V VIN=0.8V VIN=4V REXT=22K; CEXT=1nF (See note 3) REXT=22K; CEXT=1nF (See note 3) Tj=25C (See figure 1) IC > IdiagTH; Vdiag=3V VIN=Low; VCC=5.5V IC= -1A L=6mH; IC= 8A (See figure 2) Rc=0.5; Lc=3.75mH; Tj=25C; Vbat=13V (See figure 6) Rc=0.5; Lc=3.75mH; IC=6.5A; Tj=25C; Vbat=13V (See figure 6) 150 VIN=VINH; OUT=Off (See Note 4) VOUT free to follow VIN 2 0.40 180 1 15 5 25 0.5 10 2 mA A V mJ s s C V V 6.15 6.5 9 100 Min 320 30 Typ 360 40 1.5 Max 420 50 2 11 40 150 5.5 11 5 150 4 -0.3 0.4 0 10 VCC - 1 (*) VCC 0.8 100 30 100 VCC 0.5 6.85 Unit V V V mA mA mA V A mA C V V V A A A V V A Note 1: parametric degratation are allowed with 5.3 3/9 1 VB326SP ELECTRICAL CHARACTERISTICS (continued) Symbol IEH IEL VBD(off) VBD(on) Parameter High Level Sinked Enable Current Low Level Sinked Enable Current Base Darlington Voltage Off Base Darlington Voltage On Test Conditions VE=5V VE<0.4V VE=VEH VIN=VINH; VE=VEL; IC=6.5A - 200 1 1.8 Min Typ Max 500 Unit A A V V PRINCIPLE OF OPERATION The VB326SP is mainly intended as a high voltage power switch device driven by a logic level input and interfaces directly to a high energy electronic ignition coil. The input VIN of the VB326SP is fed from a low power signal generated by an external controller that determinesboth dwell time and ignition point. During Vin high ( 4V) the VB326SP increases current in the coil to the desired, internally set current level. After reaching this level, the coil current remains constant until the ignition point, that corresponds to the transition of Vin from high to low (typ. 1.9V threshold). During the coil current switch-off, the primary voltage HVC is clamped at an internally set value Vcl, typically 380V. The transition from saturation to desaturation, coil current limiting phase, must have the ability to accomodate an overvoltage. A maximum overshoot of 20V is allowed. FEEDBACK When the collector current exceeds 6.5A, the feedback signal is turned high and it remains so, until the input voltage is turned-off. OVERVOLTAGE The VB326SP can withstand the following transients of the battery line: -100V/2msec(Ri =10 ) +100V/0.2msec (Ri =10 ) +50V/400msec (Ri = 4.2 , with VIN= 3V) Figure 1: Flag current Vs. temperature Figure 2: Single pulse avalanche energy capability 700 650 600 550 500 450 400 Tc=25 C E (mJ) 350 300 250 200 150 100 50 0 0 10 20 30 40 50 60 70 80 90 100 110 Tc=150 L (mH) 4/9 1 VB326SP Figure 3: Self Clamped Inductive Switching Current Vs. Time Figure 4: Low voltage clamp feature 10 8 Inductive Current (A) T=25 6 4 T=150 2 0 200 300 400 500 600 700 800 900 1000 Time in Clamp (sec) Figure 5: Typical application diagram +5V Vbat 1F 100nF 1K VIN 1K VCC BD HVC P 1nF 18K E 1K FLAG LGND GND ENABLE pin can be alternatively connected to LGND 5/9 VB326SP Figure 6: Switching time for inductive load Vbat Rgen Vgen Vgen C D.U.T E t VCC 100V Vbat 3V tOFF tON t 6/9 VB326SP PowerSO-10TM MECHANICAL DATA DIM. A A (*) A1 B B (*) C C (*) D D1 E E2 E2 (*) E4 E4 (*) e F F (*) H H (*) h L L (*) (*) (*) Muar only POA P013P mm. MIN. 3.35 3.4 0.00 0.40 0.37 0.35 0.23 9.40 7.40 9.30 7.20 7.30 5.90 5.90 1.27 1.25 1.20 13.80 13.85 0.50 1.20 0.80 0 2 1.80 1.10 8 8 0.047 0.031 0 2 1.35 1.40 14.40 14.35 0.049 0.047 0.543 0.545 TYP MAX. 3.65 3.6 0.10 0.60 0.53 0.55 0.32 9.60 7.60 9.50 7.60 7.50 6.10 6.30 MIN. 0.132 0.134 0.000 0.016 0.014 0.013 0.009 0.370 0.291 0.366 0.283 0.287 0.232 0.232 inch TYP. MAX. 0.144 0.142 0.004 0.024 0.021 0.022 0.0126 0.378 0.300 0.374 300 0.295 0.240 0.248 0.050 0.053 0.055 0.567 0.565 0.002 0.070 0.043 8 8 B 0.10 A B 10 H E E2 E4 1 SEATING PLANE e 0.25 B DETAIL "A" A C D = D1 = = = SEATING PLANE h A F A1 A1 L DETAIL "A" P095A 7/9 VB326SP PowerSO-10TM SUGGESTED PAD LAYOUT 14.6 - 14.9 B TUBE SHIPMENT (no suffix) CASABLANCA MUAR C 10.8- 11 6.30 A A C 0.67 - 0.73 1 2 3 4 5 10 9 8 7 6 1.27 0.54 - 0.6 B 9.5 All dimensions are in mm. Base Q.ty Bulk Q.ty Tube length ( 0.5) Casablanca Muar 50 50 1000 1000 532 532 A B C ( 0.1) 0.8 0.8 10.4 16.4 4.9 17.2 TAPE AND REEL SHIPMENT (suffix "13TR") REEL DIMENSIONS Base Q.ty Bulk Q.ty A (max) B (min) C ( 0.2) F G (+ 2 / -0) N (min) T (max) 600 600 330 1.5 13 20.2 24.4 60 30.4 All dimensions are in mm. TAPE DIMENSIONS According to Electronic Industries Association (EIA) Standard 481 rev. A, Feb 1986 Tape width Tape Hole Spacing Component Spacing Hole Diameter Hole Diameter Hole Position Compartment Depth Hole Spacing W P0 ( 0.1) P D ( 0.1/-0) D1 (min) F ( 0.05) K (max) P1 ( 0.1) 24 4 24 1.5 1.5 11.5 6.5 2 End All dimensions are in mm. Start Top cover tape 500mm min Empty components pockets saled with cover tape. User direction of feed 500mm min No components Components No components 8/9 1 1 VB326SP Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics (c) 2003 STMicroelectronics - Printed in ITALY- All Rights Reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com 9/9 1 |
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