BU931 BU931P, BU931T High voltage ignition coil driver NPN power Darlington transistors Features ■ Very rugged Bipolar technology ■ High operating junction temperature ■ Wide range of packages TAB TAB Application ■ 1 2 2 The devices are bipolar Darlington transistors manufactured using multi-epitaxial planar technology. They have been properly designed to be used in automotive environment as electronic ignition power actuators. Figure 1. 1 2 1 TO-3 Description TO-247 TO-220 Internal schematic diagrams for TO-3 Table 1. 3 3 High ruggedness electronic ignitions for TO-220 and TO-247 Device summary Order codes Marking Packages Packaging BU931 BU931 TO-3 Tray BU931P BU931P TO-247 Tube BU931T BU931T TO-220 Tube December 2009 Doc ID 1004 Rev 4 1/13 www.st.com 13 Content BU931, BU931P, BU931T Content 1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2/13 Doc ID 1004 Rev 4 BU931, BU931P, BU931T 1 Electrical ratings Electrical ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit BU931 BU931P BU931T VCES Collector-emitter voltage (VBE = 0) 500 V VCEO Collector-emitter voltage (IB = 0) 400 V VEBO Emitter-base voltage (IC = 0) 5 V IC ICM IB IBM Collector current 15 10 A Collector peak current 30 20 A Base current 1 A Base peak current 5 A PTOT Total dissipation at Tc = 25 °C TSTG Storage temperature TJ Table 3. 175 135 125 -65 to 200 -65 to 175 200 175 W °C Max. operating junction temperature Thermal data Value Symbol RthJC Parameter Thermal resistance junction-case max. Doc ID 1004 Rev 4 Unit BU931 BU931P BU931T 1 1.1 1.2 °C/W 3/13 Electrical characteristics 2 BU931, BU931P, BU931T Electrical characteristics Tcase = 25 °C; unless otherwise specified. Table 4. Electrical characteristics Symbol Parameter Test conditions Typ. Max. Unit µA mA ICES Collector cut-off current (VBE = 0) VCE = 500 V VCE = 500 V TC = 125 °C 100 0.5 ICEO Collector cut-off current (IB = 0) VCE = 450 V VCE = 450 V TC = 125 °C 100 0.5 µA mA IEBO Emitter cut-off current (IC = 0) VEB = 5 V 20 mA VCEO(sus)(1) IC = 100 mA Collector-emitter Vclamp = 400 V sustaining voltage (IB = 0) see Figure 14 VCE(sat) (1) Collector-emitter saturation voltage IC = 7 A IC = 8 A IC = 10 A IB = 70 mA IB = 100 mA IB = 250 mA 1.6 1.8 1.8 V V V Base-emitter saturation voltage IC = 7 A IC = 8 A IC = 10 A IB = 70 mA IB = 100 mA IB = 250 mA 2.2 2.4 2.5 V V V DC current gain IC = 5 A VCE = 10 V Diode forward voltage IF = 10 A 2.5 V Functional test VCC = 24 V L = 7 mH Vclamp = 400 V see Figure 11 Inductive Load Storage time Fall time Vclamp = 300 V IC = 7 A L = 7 mH IB = 70 mA RBE = 47 Ω VBE = 0 VCC = 12 V see Figure 13 VBE(sat) (1) hFE (1) VF ts tf 1. Pulse test: pulse duration ≤ 300 µs, duty cycle ≤ 2 % 4/13 Min. Doc ID 1004 Rev 4 L = 10 mH 400 V 300 8 A 15 0.5 µs µs BU931, BU931P, BU931T Electrical characteristics 2.1 Electrical characteristics (curves) Figure 2. Safe operating area for BU931 and BU931P Figure 3. Safe operating area for BU931T Figure 4. DC current gain Figure 5. Switching time inductive load Figure 6. Collector-emitter saturation voltage Figure 7. @ hFE = 50 Doc ID 1004 Rev 4 Collector-emitter saturation voltage @ hFE = 100 5/13 Electrical characteristics Figure 8. BU931, BU931P, BU931T Collector-emitter saturation voltage Figure 9. Figure 10. Base-emitter saturation voltage @ hFE = 100 6/13 Doc ID 1004 Rev 4 Base-emitter saturation voltage @ hFE = 50 BU931, BU931P, BU931T 3 Test circuits Test circuits Figure 11. Functional test circuit Figure 12. Functional test waveforms Figure 13. Switching time test circuit Figure 14. Sustaining voltage test circuit Doc ID 1004 Rev 4 7/13 Package mechanical data 4 BU931, BU931P, BU931T Package mechanical data 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. 8/13 Doc ID 1004 Rev 4 BU931, BU931P, BU931T Package mechanical data TO-3 mechanical data mm. DIM. min. typ max. A 11.00 13.10 B 0.97 1.15 C 1.50 1.65 D 8.32 8.92 E 19.00 20.00 G 10.70 11.10 N 16.50 17.20 P 25.00 26.00 R 4.00 4.09 U 38.50 39.30 V 30.00 30.30 0015923C Doc ID 1004 Rev 4 9/13 Package mechanical data BU931, BU931P, BU931T TO-247 Mechanical data mm. Dim. A Min. 4.85 A1 2.20 Typ 2.60 b 1.0 1.40 b1 2.0 2.40 b2 3.0 3.40 c 0.40 0.80 D 19.85 20.15 E 15.45 15.75 e 5.45 L 14.20 14.80 L1 3.70 4.30 L2 18.50 øP 3.55 3.65 øR 4.50 5.50 S 10/13 Max. 5.15 5.50 Doc ID 1004 Rev 4 BU931, BU931P, BU931T Package mechanical data TO-220 type A mechanical data mm Dim Min A b b1 c D D1 E e e1 F H1 J1 L L1 L20 L30 ∅P Q Typ 4.40 0.61 1.14 0.48 15.25 Max 4.60 0.88 1.70 0.70 15.75 1.27 10 2.40 4.95 1.23 6.20 2.40 13 3.50 10.40 2.70 5.15 1.32 6.60 2.72 14 3.93 16.40 28.90 3.75 2.65 3.85 2.95 0015988_Rev_S Doc ID 1004 Rev 4 11/13 Revision history 5 BU931, BU931P, BU931T Revision history Table 5. 12/13 Document revision history Date Revision Changes 18-Nov-2008 3 Package changed from TO-218 to TO-247 for BU931P. Inserted type in TO-220 (BU931T). 02-Dec-2009 4 Modified IC test condition value of VCEO(sus) parameter Table 4 on page 4, updated TO-220 package mechanical data. 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