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BTS740S2 Datasheet(PDF) 8 Page - Infineon Technologies AG |
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BTS740S2 Datasheet(HTML) 8 Page - Infineon Technologies AG |
8 / 15 page PROFET® BTS 740 S2 Semiconductor Group 8 2003-Oct-01 Truth Table Input 1 Output 1 Status 1 Current Sense 1 Input 2 Output 2 Status 2 Current Sense 2 level level level IIS Normal operation L H L H H L 0 nominal Current- limitation L H L H H H 0 0 Short circuit to GND L H L L21) H H 0 0 Over- temperature L H L L H H 0 0 Short circuit to Vbb L H H H L22) L 0 <nominal 23) Open load L H L24) H H (L25)) L 0 0 Undervoltage L H L L H L 0 0 Overvoltage L H L L H L 0 0 Negative output voltage clamp L L H 0 L = "Low" Level X = don't care Z = high impedance, potential depends on external circuit H = "High" Level Status signal after the time delay shown in the diagrams (see fig 5. page 13) Parallel switching of channel 1 and 2 is possible by connecting the inputs and outputs in parallel. The status outputs ST1 and ST2 have to be configured as a 'Wired OR' function with a single pull-up resistor. The current sense outputs IS1 and IS2 have to be connected with a single pull-down resistor. Terms PROFET V IS1 ST1 GND1 bb VST1 V IN1 I ST1 I IN1 V bb Ibb IGND1 17,18 2 Leadframe 3 5 IN1 VIS1 I IS1 VOUT1 VON1 I L1 OUT1 4 RGND1 Chip 1 PROFET V IS2 ST2 GND2 bb VST2 V IN2 I ST2 I IN2 IGND2 13,14 6 Leadframe 7 9 IN2 VIS2 I IS2 VOUT2 VON2 OUT2 8 I L2 RGND2 Chip 2 Leadframe (Vbb) is connected to pin 1,10,11,12,15,16,19,20 External RGND optional; two resistors RGND1, RGND2 = 150 Ω or a single resistor RGND = 75 Ω for reverse battery protection up to the max. operating voltage. 21 ) The voltage drop over the power transistor is V bb-VOUT > 3V typ. Under this condition the sense current IIS is zero 22) An external short of output to Vbb, in the off state, causes an internal current from output to ground. If RGND is used, an offset voltage at the GND and ST pins will occur and the VST low signal may be errorious. 23 ) Low ohmic short to Vbb may reduce the output current IL and therefore also the sense current IIS. 24 ) Power Transistor off, high impedance 25 ) with external resistor between V BB and OUT |
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Similar Description - BTS740S2 |
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