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Intelligent Sixfold Low-Side Switch TLE 4216 G Bipolar IC Features q q q q q q q q q Double low-side switch, 2 x 0.5 A Quad low-side switch, 4 x 50 mA Power limitation Open-collector outputs Overtemperature shutdown Status monitoring Shorted-load protection Integrated clamp Z-Diodes Temperature range - 40 to 110 C P-DSO-24-3 Type TLE 4216 G Ordering Code Q67000-A9108 Package P-DSO-24-3 (SMD) TLE 4216 G is an integrated, sixfold low-side power switch with power limiting of the 0.5 A outputs, shorted load protection of the 50 mA switches and Z-diodes on all switches from output to ground. TLE 4216 G is particularly suitable for automotive and industrial applications. Semiconductor Group 1 08.96 TLE 4216 G Pin Configuration (top view) TLE 4216 G Semiconductor Group 2 TLE 4216 G Pin Definitions and Functions TLE 4216 G Pin No. 1, 2, 3, 4 5, 6, 7, 8 9, 10 11 12 I1, I2, I3, I4 GND I5, I6 QST Inputs of 50-mA switches 1, 2, 3, 4 Ground, cooling Inputs of 0.5 A switches 5, 6 Status analog output Reference voltage; a higher reference voltage than the internal one can be applied from the exterior as a voltage reference for the status output (A/D converter). Supply voltage Preferred state (low = preferred state of all outputs regardless of inputs) Outputs 6, 5 (0.5 A), open collector Ground, cooling Outputs 4, 3, 2, 1 (50 mA), open collector Symbol Function VREF 13 14 15, 16 17, 18, 19, 20 21, 22, 23, 24 VS PREFST Q6, Q5 GND Q4, Q3, Q2, Q1 Semiconductor Group 3 TLE 4216 G Block Diagram Semiconductor Group 4 TLE 4216 G Circuit Description Input Circuits The control inputs and the preferred-state input consist of TTL-compatible Schmitt triggers with hysteresis. Driven by these stages the buffer amplifiers convert the logic signal necessary for driving the NPN power transistors. Switching Stages The output stages consist of NPN power transistors with open collectors. Each stage has its own protective circuit for limiting power dissipation and shorted-load current, which makes the outputs shorted-load protected to the supply voltage throughout the operating range. Integrated Z-diodes limit positive voltage spikes that occur when inductive loads are discharged. Monitoring and Protective Functions Each output is monitored in its activated status for overload. Furthermore, large parts of the circuitry are shutdown (control, output stages). The information from these malfunctions is ORed and applied to the status output. If several malfunctions appear simultaneously, the highest voltage level will dominate. The IC is also protected against thermal overload. If a chip temperature of typically 160 C is reached, overtemperature is signalled on the status output. If the temperature continues to increase, all outputs are turned off at 170 C. If the minimum supply voltage for functioning is not maintained, the output stages become inactive. At a supply voltage of 2 to 4 V, the outputs are switched to a preferred state regardless of the level on pin PREFST. If the preferred state is to be maintained beyond this range, pin PREFST must be switched to low potential. Above a supply voltage of typical 3 V (max. 4 V) the preferred state is controlled by pin PREFST. From 4 to 5.2 V the logic operation of the outputs is guaranteed, but the status output cannot be evaluated. At a supply voltage of 5.2 to 30 V the full function is guaranteed. Semiconductor Group 5 TLE 4216 G Application Description Applications in automotive electronics require intelligent power switches activated by logic signals, which are shorted-load protected and provide error feedback. The IC contains six power switches connected to ground (low-side switch). On inductive loads the integrated Z-diodes clamp the discharging voltage. By means of TTL signals on the control inputs (active high) all six switches can be activated independently of another when a high level appears on the preferred-state input. When there is a low level on the preferred-state input, switches 1 to 4 are switched on, switches 5 and 6 are switched off regardless of the input level. The inputs are highly resistive and therefore must not be left unconnected, but should always be on fixed potential (noise immunity). The status output signals the following malfunctions by analog voltage levels: q q Overload Overtemperature Possible Input and Output Levels Supply Voltage VS 2 to 4 V 4 to 30 V 4 to 30 V PREFST L H H I1 ... I6 X L H Q1 ... Q4 L H L Q5, Q6 H H L Semiconductor Group 6 TLE 4216 G Absolute Maximum Ratings Tj = - 40 to 150 C Parameter Symbol Limit Values min. max. Unit Remarks Voltages Supply voltage Supply voltage, load circuit Input voltage Input voltage VS VQ1-6 VI1-6, VPREFST VREF ext -1 - 0.7 0 - 0.7 40 25 V V V V VS 7 Currents Switching current Current on reverse poling in load circuit Current on reverse poling in load circuit Output current positive clamp Output current positive clamp Junction temperature Storage temperature IQ1-IQ6 IQ5, Q6 IQ1-Q4 IZ5-Z6 IZ1-Z4 Tj Tstg - 40 - 50 - 0.5 - 50 0.7 70 150 150 A mA A mA C C limited internally Thermal overload shutdown at 170 C Semiconductor Group 7 TLE 4216 G Operating Range Parameter Symbol Limit Values min. Supply voltage max. 30 V Unit Remarks VS 5.2 VREF VS, functioning is guaranteed at VS = 4 - 5.2 V but status output cannot be evaluated. Supply voltage in load circuit Ambient temperature Supply voltage for load short-circuit Input current (high) Thermal resistance Junction-ambient VQ1-6 TA VS IIH Rth JA - 0.3 - 40 24 110 16 100 65 V C V A K/W P-DSO-24-3 Semiconductor Group 8 TLE 4216 G Characteristics VS = 5 to 12 V; Tj = - 25 to 140 C Parameter Symbol Limit Values min. typ. max. Unit Test Condition General Supply current Supply current Quiescent current IS IS IS 50 36 8 70 50 11 mA mA mA VI > VIH; VIP > VIH VI > VIH; VIP > VIH; VS = 5 V VI < VIL; VIP > VIH Logic (Control inputs + preferred state) H-switching threshold L-switching threshold Hysteresis Input current Input current L-input current VIH VIL II VI 1.3 0.9 0.3 -2 0 1.8 1.2 0.6 2.1 1.5 1.0 2 20 V V V A A 0.9 V < VI < 6 V 0.5 V < VI < 0.9 V - IIL Switching Stages Load current Saturation voltage Saturation voltage Saturation voltage Turn-ON time Turn-OFF time IQ1-Q4 VQSat 5, 6 VQSat 1-4 VQSat 1-4 tD-ON tD-OFF 50 0.5 0.4 0.2 0.2 1 1 0.8 0.6 0.22 1.5 1.5 mA V V V s s VS = 2 V (preferred state) IQ = 0.4 A; VI > VIH IQ = 50 mA; VI > VIH IQ = 20 mA; VI > VIH see Diagrams see Diagrams; IL = Imax Semiconductor Group 9 TLE 4216 G Characteristics (cont'd) VS = 5 to 12 V; Tj = - 25 to 140 C Parameter Symbol Limit Values min. typ. max. Unit Test Condition Temperature Protection Overtemperature (signaled on status output) Overtemperature (outputs shut down) 160 C C 170 Outputs Output voltage pos. clamp Output voltage pos. clamp Shorted-load current Leakage current Leakage current Shorted-load current Status output No error Overload output 6 Overload output 5 Overload output 4 Overload output 3 Overload output 2 Overload output 1 Overtemperature 1) VQ1-4 VQ5-6 IQ1maxQ4max 25.5 25.5 50 33 35 120 200 300 V V mA nA A I = 50 mA I = 0.5 A VQ < 16 V VQ = 24 V; Tj = 125 C VQ = 24 V see Diagrams IQ1-4 IQ5;6 IQ5maxQ6max Vst Vst Vst Vst Vst Vst Vst Vst 1.0 1.4 1.8 2.2 2.6 3.0 3.5 0.5 1.3 1.7 2.1 2.5 2.9 3.3 V V V V V V V V VREF = 5 V 1) VREF = 5 V 1) VREF = 5 V 1) VREF = 5 V 1) VREF = 5 V 1) VREF = 5 V 1) VREF = 5 V 1) VREF = 5 V 1) The limits shift proportionally for a higher value of reference voltage. Semiconductor Group 10 TLE 4216 G Characteristics (cont'd) VS = 5 to 12 V; Tj = - 25 to 140 C Parameter Symbol Limit Values min. Source resistance of status output Delay time of status Reference voltage (internal) Input resistance of reference pin typ. max. 550 10 2.5 7 10 14.5 s V k Shorted load Unit Test Condition RQSt tdst VREF RREF in 100 VREF = 2.8 V ... 6.5 V Semiconductor Group 11 TLE 4216 G Test Circuit S1 in position 1: all switches can be activated by S2 (position 1) or deactivated (position 2) S1 in position 2: preferred state Semiconductor Group 12 TLE 4216 G Application Circuit *) The capacitance depends on the inductance and current load of the supply. Semiconductor Group 13 TLE 4216 G Diagrams Permissible Load Inductance versus Load Current Short-Circuit Current IQO versus Output Voltage VQ (0.5 A outputs) When switching the maximum inductive loads, the maximum temperature Tj of 150 C may be briefly exceeded. The IC will not be destroyed by this, but the restrictions concerning useful life should be observed. Semiconductor Group 14 |
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