VB525SP-E High voltage ignition coil driver power integrated circuit Features Type Vcl Icl ICC VB525SP-E 380 V 10 A 150 mA ■ ECOPACK®: lead free and RoHS compliant ■ Primary coil voltage internally set ■ Coil current limit internally set ■ Logic level compatible input ■ Driving current quasi proportional to collector current ■ Single flag on coil current ■ Low voltage clamp thermal shutdown 10 1 PowerSO-10 Description The VB525SP-E is a high voltage power integrated circuit made using the STMicroelectronics™ VIPower™ M1-3 technology, with Darlington and logic level compatible vertical current flow power driving circuit. The enable pin allows to externally block the switch when the input is on. A built-in protection circuit for coil current limiting and collector voltage clamping allows the device to be used as a smart, high voltage, high current interface in advanced electronic ignition systems. If the input signal from the microcontroller happens to remain high, the device protects itself against overheating by forcing collector current to smoothly decrease (low voltage clamp feature) to avoid undesired spark. Table 1. Device summary Order codes Package PowerSO-10 September 2010 Tube Tape and real VB525SP-E VB525SPTR-E Doc ID 18022 Rev 1 1/19 www.st.com 1 Contents VB525SP-E Contents 1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 2.1 Absolute maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1 4 5 6 2/19 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.3 Overvoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.2 PowerSO-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.3 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Doc ID 18022 Rev 1 VB525SP-E List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PowerSO-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Doc ID 18022 Rev 1 3/19 List of figures VB525SP-E List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. 4/19 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connection diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Switching time for inductive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Flag current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Single pulse avalanche energy capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Self clamped inductive switching current vs time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Low voltage clamp feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 PowerSO-10 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 PowerSO-10 suggested pad layout and tube shipment (no suffix). . . . . . . . . . . . . . . . . . . 17 PowerSO-10 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Doc ID 18022 Rev 1 VB525SP-E 1 Block diagram and pin description Block diagram and pin description Figure 1. Block diagram BD VCC HVC VIN DRIVER QUASI PROP. BASE CURRENT RSENSE LIMITER DIAGNOSTIC OUTPUT VCC VR VF1 - VLIM THERMAL PROTECTION REFERENCE VTH SN LGND E Table 2. GND Pin function Pin number Name Function 1, 5 LGND Signal ground 2, 3, 4 GND Emitter power ground 6 E 7 VCC Logic supply voltage 8 BD Base darlington 9 INPUT Logic input channel (internal pull down) 10 FLAG Diagnostic output signal (open emitter) Tab HVC Enable(1) Primary coil output driver (open collector) 1. When grounded the input is enabled Doc ID 18022 Rev 1 5/19 Block diagram and pin description Figure 2. VB525SP-E Connection diagram (top view) E VCC BD INPUT FLAG 6 7 8 9 5 4 3 10 1 2 TAB HVC Note: Pin 1 and pin 5 must be connected to pin2, pin 3 and pin 4 6/19 Doc ID 18022 Rev 1 LGND GND GND GND LGND VB525SP-E Electrical specifications 2 Electrical specifications 2.1 Absolute maximum rating Stressing the device above the ratings listed in the “Absolute maximum ratings” tables may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to the conditions in this section for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 3. Absolute maximum ratings Symbol Parameter Value Unit HVc Collector voltage (internally limited) -0.3 to Vclamp V IC Collector current (internally limited) 10 A IC(gnd) DC current on emitter power ±10.5 A VCC Driving stage supply voltage -0.3 to 7 V ±200 mA ±1 A -0.3 to VCC + 0.3 V 100 mA DC to 150 Hz -0.3 to VCC + 0.3 V Is Is(gnd) Driving circuitry supply current DC current on ground pin VIN Input voltage IIN Maximum input current fIN Logic input frequency in operative mode VOUT(flag) Output voltage primary threshold current level IOUT(flag) Flag output current 100 mA Pmax Power Dissipation (Tc = 25 °C) 125 W Es/b Self clamped energy during output power clamping (see Figure 5) 275 mJ VESD ESD voltage (HVc pin) ±4 KV VESD ESD voltage (enable pin) +1.5; -2 KV VESD ESD voltage (other pins) ±2 KV IBD Input darlington base current 150 mA VBD Input darlington base voltage Internally limited V Operating junction temperature -40 to 150 °C Tstg Storage temperature range -55 to 150 °C VE Maximum enable voltage -0.3 to 5.5 V IE Maximum enable current ±150 µA Tj Doc ID 18022 Rev 1 7/19 Electrical specifications 2.2 Thermal data Table 4. Symbol 8/19 VB525SP-E Thermal data Parameter Value Unit Rthj-case Thermal resistance junction-case (max) 1 °C/W Rthj-amb Thermal resistance junction-ambient (max) 51 °C/W Doc ID 18022 Rev 1 VB525SP-E 3 Electrical characteristics Electrical characteristics 5.3 V < Vbat < 24 V; VCC = 5 V ±10 %; -40 °C < Tj < 125 °C; Rcoil = 580 mΩ; Lcoil = 3.75 mH unless otherwise specified(a). Table 5. Symbol Electrical characteristics Parameter Test conditions Min Typ Max Unit Vcl High voltage clamp Icoil = 6.5 A 320 380 420 V Vlcl Low voltage clamp Icoil = 6.5 A; Tj = Tsd 30 40 50 V Vce(sat) Power stage saturation voltage IC = 6 A; VIN = 4 V 1.5 2 V ICC(stdby) Standby supply current IN = Off 11 mA ICC DC logic current Vb = 16 V; IC = 6.5 A; f = 100 Hz; Load = Coil; VCC = 5.5 V 40 mA Peak DC logic current during on phase IC = 6.5 A 150 mA 4.5 5.5 V 9 11 A 5 mA 4 VCC V 0.8 V ICC(peak) VCC 100 DC logic voltage °C(1) Icl Coil current limit -40 °C < Tj < 125 Ic(off) Output off-state current IN = Off; VHVC = 24 V; VCC = 5 V; Tj = 25 °C VINH High level input voltage VCC = 4.5 V VINL Low level input voltage VCC = 5.5 V -0.3 VIN(hyst) Input threshold hysteresis 0.4 IINH High level input current IINL Low level input current VIN = 0.8 V IINpd Input active pull down VIN = 4 V VdiagH High level flag output voltage REXT = 22 KΩ; CEXT = 1 nF(2) VdiagL Low level flag output voltage REXT = 22 KΩ; CEXT = 1 nF(2) IdiagTH Coil current level threshold Tj = 25 °C IdiagTD Coil current level threshold drift (See Figure 4) V VIN = 4 V 100 µA 0 30 µA 10 100 µA VCC - 1 VCC V 0.5 V 4.75 A 4.25 4.5 a. Parametric degradation are allowed with 5.3 V< Vb < 10 V and Vb > 24 V. Doc ID 18022 Rev 1 9/19 Electrical characteristics Table 5. Symbol VB525SP-E Electrical characteristics (continued) Parameter Test conditions Min Typ High level flag output current IC > IdiagTH; Vdiag = 3 V Leakage current on flag output VIN = Low; VCC = 5.5 V 10 µA VF Anti parallel diode forward voltage IC = -1 A 2 V Es/b Single pulse avalanche energy L = 6 mH; IC = 8 A tON Turn-on time Rc = 0.5 Ω; Lc = 3.75 mH; Tj = 25 °C; Vbat = 13 V (see Figure 3) 1 5 µs tOFF Turn-off time Rc = 0.5 Ω; Lc = 3.75 mH; IC = 6.5 A; Tj = 25 °C; Vbat = 13 V (see Figure 3) 15 25 µs Tsd Thermal shutdown intervention VEH High level enable voltage VIN = VINH; OUT = Off(3) VEL Low level enable voltage VOUT free to follow VIN 0.40 V IEH High level enable current VE = 5 V 500 µA IEL Low level enable current VE < 0.4 V VBD(off) Base darlington voltage off VE = VEH VBD(on) Base darlington voltage on VIN = VINH; VE = VEL; IC = 6.5 A Idiag Idiag(leak) 0.5 mA 180 3. If ENABLE pin is floating OUT = Off for every input status. Doc ID 18022 Rev 1 mJ 150 °C 2 V -200 µA 1 1.8 1. The primary coil current value Icl must be measured ms after desaturation of the power stage. 2. No internal pull-down. 10/19 Max Unit V V VB525SP-E Electrical characteristics Figure 3. Switching time for inductive load Vbat Rgen C D.U.T Vgen E Vgen t VCC 100V Vbat 3V tOFF t tON Doc ID 18022 Rev 1 11/19 Electrical characteristics 3.1 VB525SP-E Electrical characteristics curves Figure 4. Flag current vs temperature Figure 5. Single pulse avalanche energy capability 700 650 600 550 Tc=25º 500 450 E (mJ) 400 350 300 250 Tc=150º 200 150 100 50 0 0 10 20 30 40 50 60 70 80 90 100 110 L (mH) Figure 6. Self clamped inductive switching current vs time Figure 7. 10 Inductive Current (A) 8 T=25º 6 4 T=150º 2 0 200 300 400 500 600 700 800 900 1000 Time in Clamp (µsec) 12/19 Doc ID 18022 Rev 1 Low voltage clamp feature VB525SP-E 4 Application schematic Application schematic Figure 8. Application diagram +5V Vbat 1μF 100nF 1K VIN VCC BD 1K HVC E μP 1K FLAG 1nF 18K LGND GND Note: ENABLE pin can be alternatively connected to LGND. 4.1 Principle of operation The VB525SP-E 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 VB525SP-E is fed from a low power signal generated by an external controller that determines both dwell time and ignition point. During VIN high (≥ 4 V) the VB525SP-E 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. 1.9 V threshold). During the coil current switch-off, the primary voltage HVC is clamped at an internally set value Vcl, typically 380 V. The transition from saturation to desaturation, coil current limiting phase, must have the ability to accommodate an overvoltage. A maximum overshoot of 20 V is allowed. 4.2 Feedback When the collector current exceeds 4.5 A, the feedback signal is turned high and it remains so, until the input voltage is turned-off. Doc ID 18022 Rev 1 13/19 Application schematic 4.3 VB525SP-E Overvoltage The VB525SP-E can withstand the following transients of the battery line: 14/19 ● -100 V / 2 msec (Ri = 10 Ω) ● +100 V / 0.2 msec (Ri = 10 Ω) ● +50 V / 400 msec (Ri = 4.2 Ω, with VIN = 3 V) Doc ID 18022 Rev 1 VB525SP-E Package information 5 Package information 5.1 ECOPACK® packages In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. 5.2 PowerSO-10 mechanical data Figure 9. PowerSO-10 package dimensions B 0.10 A B 10 H E E2 E4 1 SEATING PLANE e B DETAIL "A" h A C 0.25 D = D1 = = = SEATING PLANE A F A1 A1 L DETAIL "A" α Doc ID 18022 Rev 1 P095A 15/19 Package information VB525SP-E Table 6. PowerSO-10 mechanical data Millimeters Symbol Min. 3.35 3.65 A(1) 3.4 3.6 A1 0.00 0.10 B 0.40 0.60 B(1) 0.37 0.53 C 0.35 0.55 C(1) 0.23 0.32 D 9.40 9.60 D1(2) 7.40 7.60 E(2) 9.30 9.50 E2 7.20 7.60 E2(1) 7.30 7.50 E4 5.90 6.10 E4(1) 5.90 6.30 1.27 F 1.25 1.35 F(1) 1.20 1.40 H 13.80 14.40 H(1) 13.85 14.35 h 0.50 L 1.20 1.80 L(1) 0.80 1.10 α 0º 8º α(1) 2º 8º Muar only POA P013P. 2. Resin protrusion not included (max value: 0.20 mm per side). 16/19 Max. A e 1. Typ. Doc ID 18022 Rev 1 VB525SP-E 5.3 Package information Packing information Figure 10. PowerSO-10 suggested pad layout and tube shipment (no suffix) CASABLANCA 14.6 - 14.9 MUAR B 10.8 - 11 C 6.30 C A A B 0.67 - 0.73 1 9.5 2 3 4 5 10 9 8 0.54 - 0.6 All dimensions are in mm. 7 1.27 6 Base Q.ty Bulk Q.ty Tube length (± 0.5) Casablanca Muar Figure 11. 50 50 1000 1000 532 532 A B 10.4 16.4 4.9 17.2 C (± 0.1) 0.8 0.8 PowerSO-10 tape and reel shipment (suffix “TR”) 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 No components Components No components cover tape 500mm min Empty components pockets saled with cover tape. 500mm min User direction of feed Doc ID 18022 Rev 1 17/19 Revision history 6 VB525SP-E Revision history Table 7. 18/19 Document revision history Date Revision 27-Sep-2010 1 Changes Initial release. Doc ID 18022 Rev 1 VB525SP-E Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2010 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com Doc ID 18022 Rev 1 19/19