L9332 Quad intelligent power low side switch Features ■ Quad power low side driver with 3 A output current capability ■ Low RDSON typically 200 mΩ and 300 mΩ @ Tj = 25 °C ■ Internal output clamping structures with VFB = 50 V for fast inductive load current re circulation ■ Limited output voltage slew rate for low EMI ■ Protected µP compatible enable and input ■ Wide operating supply voltage range 4.5 V to 32 V ■ Real time diagnostic functions: – Output shorted to GND – Output shorted to VS – Open load detection in ON and OFF condition – Overtemperature detection ■ PowerSO-20 Die Description The L9332 is a monolithic integrated quad low side driver realized in an advanced Multipower BCD mixed technology. The device is intended to drive valves in automotive environment. Device protection functions: – Overload disable – Selective thermal shutdown – Signal- and Power-Ground-loss shutdown Table 1. The inputs are µP compatible. Particular care has been taken to protect the device against failures, to avoid electromagnetic interferences and to offer extensive real time diagnostic. Device summary Order code Package Packing L9332(1) PowerSO-20 Tube L9332-DIE1 Die – 1. Only for evaluation. March 2008 Rev 2 1/17 www.st.com 1 Contents L9332 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Pad description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.3 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.5 Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5 Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/17 L9332 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pad coordinates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3/17 List of figures L9332 List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. 4/17 Block circuit diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pad position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 tEO clamping time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Output slope (resistive load for testing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Timing (tDOL, tDIOU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 PowerSO-20 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 15 L9332 Block diagram 1 Block diagram 1.1 Block diagram Figure 1. Block circuit diagram IN1 D1 Channel 1 OUT1 VS EN 52V Output Control OUT4 IN4 Overtemp Q R S Delay Time Overload D4 Diagnostic Control Openload Channel 4 IN2 D2 Channel 2 OUT2 IN3 D3 Channel 3 OUT3 05UG32_25A GND 5/17 Pin description 2 L9332 Pin description Figure 2. Pin connection (top view) Heat sink connected to pins 1, 10, 11, 20 PGND OUT1 D1 IN4 VS NC IN3 D2 OUT2 PGND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 PGND OUT4 D4 IN1 EN GND IN2 D3 OUT3 PGND 05UG32_26 PowerSO-20 package (only for engineering samples) Table 2. 6/17 Pin description Pin #. Pin name Function 1 GND Power ground 2 Out1 Output 1 (3 A) 3 D1 Diagnostic 1 4 IN4 Input 4 5 VS Supply voltage 6 NC Not connected 7 IN3 Input 3 8 D2 Diagnostic 2 9 Out2 Output 2 (3 A) 10 GND Power ground 11 GND Power ground 12 Out3 Output 3 (3 A) 13 D3 Diagnostic 3 14 IN2 Input 2 15 GND 16 EN Common enable 17 IN1 Input 1 18 D4 Diagnostic 4 19 Out4 Output 4 (3 A) 20 GND Power ground Signal ground L9332 Pad description Figure 3. Pad position D4 IN1 EN GND OUT3 IN2 D3 IN3 D2 PG2 PG3 PG4 OUT4 PG1 3 Pad description D1 IN4 VS OUT2 OUT1 Table 3. Pad coordinates Pin # Pad name 1 PG1 2 Out1 3 Description Size X Y Power ground 510*150 -136 1846 Output 1 (3 A) 510*150 -1219 1152 D1 Diagnostic 1 150 *150 -1093 662 4 IN4 Input 4 150 *150 -1093 452 5 VS Supply voltage 150 *150 -1093 242 7 IN3 Input 3 150 *150 -1093 -446 8 D2 Diagnostic 2 150 *150 -1093 -656 9 Out2 Output 2 (3 A) 510 *150 -1219 -1148 10 PG2 Power ground 510 *150 -138 -1842 11 PG3 Power ground 430 *150 624 -1842 12 Out3 Output 3 (3 A) 430 *150 1195 -1064 13 D3 Diagnostic 3 150 *150 1181 -557 14 IN2 Input 2 150 *150 1181 -347 15 GND Signal ground 150 *150 1181 -137 16 EN Common enable 150 *150 1181 156 17 IN1 Input 1 150 *150 1181 365 18 D4 Diagnostic 4 150 *150 1181 575 19 Out4 Output 4 (3 A) 430 *150 1196 1067 20 PG4 Power ground 430*150 624 1846 7/17 Electrical specifications L9332 4 Electrical specifications 4.1 Thermal data Table 4. Thermal data Symbol RTH(j-c) 4.2 Parameter Thermal resistance junction to case for Power SO-20 Value Unit 3 °C/W Absolute maximum ratings Table 5. Absolute maximum ratings Symbol Parameter Conditions Value Unit VS DC supply voltage -0.3 to 32 V VSP Supply voltage pulse (duration <200 ms) -0.3 to 45 V 10 V/µs ⎪dVS/dt⎪ VIN, EN VD VODC Supply voltage slope Input voltage ⎪I ⎪ 10 mA -1.5 to 6 V Diagnostic DC output voltage ⎪I ⎪ 50 mA -0.3 to 16 V -0.3 to 45 V DC output voltage IO DC output current out 3 A IOR Reverse output current -3 A tEO = 250 µs 50 mJ T = 5ms 30 mJ 0.3 V Σt ≤ 4800 h -40 to 145 °C Σt ≤ 1200 h 145 to 160 °C Σt ≤ 160 h 160 to 170 °C Σt ≤ 50 h 170 to 175 °C -40 to 175 °C EO1, 2 Switch-off energy for inductive loads EO3, 4 ΔVGND Tj Tstg GND potential difference Junction temperature Storage temperature Note: For diagnostic output (Dx Pins), maximum supply voltage during Latch-up = 20V 4.3 ESD protection Table 6. Symbol VO Vs, IN EN D Note: 8/17 ESD protection Parameter Test conditions Outputs test voltage Versus GND + PG shorted All other pins Versus GND Tested according to JEDEC (Norm: JESD22-A114C.01). Value Unit 3.75 kV 2 kV L9332 4.4 Electrical specifications Electrical characteristics VS = 4.5 to 32 V; -40 °C ≤ Tj1 ≤ 175 °C, unless other-wise specified. Function is guaranteed until thermal shut down threshold; Table 7. Electrical characteristics Values Tj1 Symbol Parameter Test conditions Unit Min. Typ. Max. 5 15 mA 1.5 4.5 V 45 60 V mΩ Supply IVS VRES DC supply current off Reset Voltage Outputs Out 1 - 4 VZ Z-diode clamping voltage RDSON 1, 2 Output on resistance RDSON 3, 4 IOLE Output leakage IOCL ≥ 200 mA Tj = 25 °C Tj = 150 °C Tj = 175 °C 200 300 500 600 Tj = 25 °C Tj = 150 °C Tj = 175 °C 300 450 750 900 mΩ Tj = 140 °C Vout = 20 V 3 µA -40 °C < Tj ≤ 175 °C Vout = 20 V 36 µA Tj = 140 °C VS = 32 V; Vout = 4 V -50 -5 µA Tj = 140 °C VS = 8 V; Vout = 4 V -5 2.5 µA 25 µA 4 V/µs 1.0 V -40 °C < Tj ≤ 175 °C VS = 8 V; Vout = 4 V S Output slope Io = 1 A; Figure 5 0.5 Inputs IN1-4, EN VIN,EN L Logic input/enable low voltage VIN,EN H Logic input/enable high voltage VEN,IN hys IN, EN Logic input hysteresis IIN Input sink current IEN Enable sink current VIN > 1 V (1) 2.0 V 50 100 mV 5 20 40 µA 5 20 40 µA 9/17 Electrical specifications Table 7. L9332 Electrical characteristics (continued) Values Tj1 Symbol Parameter Test conditions Unit Min. Typ. Max. 0.55 x VS 0.575 x VS V 250 mV 140 mA 8 A 225 °C Protection and diagnostic functions VOUV Output open load voltage threshold 0.525 x VS VOUV hys Output open load voltage hysteresis 10 IOUC Output open load current threshold VEN = VIN = 2 V; VS = 6.5 to 16 V IOOC 1, 2, 3, 4 Over load current threshold TSD Tsd-hys 30 80 3 Thermal shut down 185 TSD hysteresis 205 20 VPGL Power-GND-loss threshold 1 VSGL Signal-GND-loss threshold 0.1 2.5 K 4 V 0.6 V 1.0 V 500 Ω 2 µA 10 µA 50 mA 1 25 µs Diagnostic outputs D1 - D4 VDL Diagnostic output low voltage RDon Output resistor IDLE Diagnostic output leakage current IDCL ID ≤ 2 mA 50 Tj = 140 °C VD = 14 V 0.1 -40 °C < Tj ≤ 175 °C VD = 14 V Diagnostic output current limitation 2 28 Timing tON Output delay on time (2) tOFF Output delay off time Figure 5 10 50 µs < 150 °C 10 30 µs > 150 °C 20 40 µs Delta off on time (channel 3 +4) -40 °C < Tj ≤ 175 °C 10 30 µs Diagnostic delay time (2) 4 50 µs Figure 5 Delta off on time (channel 1 +2) toff-ton tD 1. Open pins (EN, IN) are detected as low 2. VS = 9 to 16V ∧ IOUC ≤ IO ≤ IOOC 10/17 Figure 5 & 6 L9332 Electrical specifications 4.5 Diagnostic Table 8. Diagnostic Conditions EN IN OUT DIAG. L X off L Normal function H L off L H H on H Filter Reset Open load off VOtyp < 0.55 xVS L H X L off H no Open load on IOmin < 30 mA H H on L no Overtemperature Tjtyp < 205 °C X X off L tD IN=low Over load IOmin > 3 A H H off L tD IN= low SGND or PGND loss channel off X L L H off H tD SGND or PGND loss channel on H H off L tD IN=low 11/17 Circuit description 5 L9332 Circuit description The L9332 is a quad low side driver for inductive loads like valves in automotive environment. The internal pull down current sources at the ENable and INput pins assure in case of open input conditions that the device is switched off. An output voltage slope limitation for du/dt is implemented to reduce the EMI. This is valid up to the clamping voltage VZ. This active flyback voltage limitation clamps the output voltage during the flyback phase. It is alowed to connect two power stages from one device in parallel if external free wheeling diodes are used in the application. For the Ron calculation the parallel resistivity is expected. The nominal current is 70% of the sum of the nominal currents of the used channels. Each driver is protected against short circuit at VOUT < 32 V and thermal overload. In short circuit condition the output will be disabled after a short delay time tD. The thermal disable for TJ > 175°C of the output will be reset if the junction temperature decreases about 20 °C below the disable threshold temperature. The overtemperature, overload and groundloss information is stored until IN is low. For the real time error diagnosis the voltage and the current of the outputs are compared with internal fixed values VOUV for OFF and IOUC for ON conditions to recognize open load in OFF and ON conditions. The diagnostic output level in connection with different ENable and INput conditions allows to recognize different fail states, like overtemp, short to VS, short to GND, bypass to GND and disconnected load (see diagnostic table). The diagnostic output is protected against short circuit. Exceeding the over load current threshold IOOC, the output current will be limited internally during the diagnostic overload delay switch-off time tD. The device complies the ISO pulses imposed to the supply voltage of the valves without any failures of the functionality. Therefore some diagnostic functions are internal filtered. The diagnostic table shows the corresponding filter time for each detected signal. Figure 4. tEO clamping time VO1-4 VZ VS t tEO T 05UG32_27 12/17 L9332 Circuit description Figure 5. Output slope (resistive load for testing) VIN VEN 5V VH VL t VOUT tON tOFF VS 0.8VS VOUV 0.2VS t VDIAG tf tr tD VD 0.5VD 05UG32_30 Figure 6. Timing (tDOL, tDIOU) IN VON IOOC IOUC VD tD Open Load Current tD 05UG32_32 13/17 05UG32_34 14/17 Open Load Voltage Normal Operation OFF Open Load Voltage Open Load Current Normal Operation ON Latch Reset Latched Over. Load Diagnostic Open Load Current Normal Operation ON Figure 7. Open Load Current Circuit description L9332 Logic diagram VEN VIN VOU IOO IOU VD L9332 6 Package information Package information In order to meet environmental requirements, ST (also) offers these devices in ECOPACK® packages. ECOPACK® packages are lead-free. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 8. PowerSO-20 mechanical data and package dimensions DIM. mm MIN. TYP. A a1 inch MAX. MIN. TYP. 3.6 0.1 0.3 a2 0.142 0.004 0.012 3.3 a3 0.130 0 0.1 0.000 0.004 b 0.4 0.53 0.016 0.021 c 0.23 0.32 0.009 0.013 D (1) 15.8 16 0.622 0.630 D1 (2) 9.4 9.8 0.370 0.386 E 13.9 14.5 0.547 e 1.27 e3 E1 (1) E3 0.570 0.450 11.1 E2 0.429 0.437 0.228 0.244 2.9 5.8 6.2 0.114 G 0 0.1 0.000 0.004 H 15.5 15.9 0.610 0.626 0.8 1.1 0.031 0.043 h L 1.1 0.043 N 8˚(typ.) S 8˚(max. ) T Weight: 1.9gr 0.050 11.43 10.9 OUTLINE AND MECHANICAL DATA MAX. 10 JEDEC MO-166 0.394 PowerSO-20 (1) “D and E1” do not include mold flash or protusions. - Mold flash or protusions shall not exceed 0.15mm (0.006”) - Critical dimensions: “E”, “G” and “a3”. (2) For subcontractors, the limit is the one quoted in jedec MO-166 N R N a2 b A e DETAIL A c a1 DETAIL B E e3 H DETAIL A lead D slug a3 DETAIL B 20 11 0.35 Gage Plane -C- S SEATING PLANE L G E2 E1 BOTTOM VIEW C (COPLANARITY) T E3 1 h x 45˚ 1 0 PSO20MEC D1 0056635 I 15/17 Revision history 7 L9332 Revision history Table 9. 16/17 Document revision history Date Revision Changes 14-Feb-2008 1 Initial release. 28-Mar-2008 2 Updated the IOLE, IDLE and toff-ton parameters on Table 7: Electrical characteristics. L9332 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. 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