TLE4226G

TLE4226G INFINEON | Alldatasheet

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Features

/G01 Quad 50 mA outputs /G01 Dual 500 mA outputs /G01 Operating range VS = 5 V ± 5 % /G01 Output stages with power limiting /G01 Open-collector outputs /G01 Shorted load protected within operating range /G01 Clamp-diodes to ground /G01 Status signaling /G01 TTL-compatible control inputs /G01 Overtemperature monitoring /G01 Temperature range – 40 to 125 °C /G01 New type TLE 4226 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 4226 G is particularly suitable for automotive and industrial applications. Intelligent Sixfold Low-Side Switch Type Ordering Code Package /G01 TLE 4226 G Q67000-A9118 P-DSO-24-3 (SMD)

(top view) Pin Definitions and Functions Pin Symbol Function

1 IN1 Input switch 1, active high (50 mA)

2 IN2 Input switch 2, active high (50 mA)

3 IN3 Input switch 3, active high (50 mA)

4 IN4 Input switch 4, active high (50 mA)

5, 6, 7, 8 GND Ground, cooling

9 IN5 Input switch 5, active high (500 mA)

10 IN6 Input switch 6, active high (500 mA)

11 StA Status output analog

12 StD Status output digital (error = low)

14 PREFST Preferred state input, active low

15 Q6 Output switch 6 (500 mA)

16 Q5 Output switch 5 (500 mA)

17, 18, 19, 20 GND Ground, cooling

21 Q4 Output switch 4 (50 mA)

22 Q3 Output switch 3 (50 mA)

23 Q2 Output switch 2 (50 mA)

24 Q1 Output switch 1 (50 mA)

Applications in automotive electronics call for intelligent power switches that can be activated by logic signals, which have to be shorted load protected and which provide error feedback. This IC contains six power switches connected to ground (low-side switches). 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 one 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 control-input levels. The inputs are highly resistive and therefore must not be left unconnected but should always be on fixed potential (noise immunity). Inputs that are not used, should be connected to low level to reduce the power consumption. The analog status output signals the following errors by analog voltage levels: – Overload – Thermal overload – Openload or shorted load to ground (only switches 5 and 6) The following levels signal errors at the analog and digital status outputs. Possible Input and Output Levels Errors Analog Status Digital Status Normal function Low High Overload Openload or shorted load to ground (only switches 5 and 6) Thermal overload 1.0 V to 3.3 V 1.0 V to 1.7 V > 3.5 V Low Low Low Supply Voltage VS PREFST IN1-6 Q1-Q4 Q5, Q6 2 to 5 V 5 V 5 V Low High High Random Low High Low High Low High High Low

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 clamp- diodes limit positive voltage spikes that occur when inductive loads are discharged. Output currents, caused through negative voltages at the outputs, are compensated up to 50 mA for all outputs in total. Monitoring and Protective Functions Each output is monitored (for overload) in its activated status. For the switches 1 to 4 overload is detected, if the switches are activated and the output voltage at the transistor is higher than 4.1 V for more than 10 µs. The concerned output will be shutdown and both status outputs will be set. The switch can only be activated again if the corresponding input is switched off and then on again. If the output voltage does not exide 4.1 V, the output is not shutdown and the status outputs are not set, although an overload may occur. The switches 5 and 6 are protected through a SOA-circuit. It is suppressed for at least 10 µs when the switch is turned on before it can start limiting the overload current. The status outputs also monitor openload or shorted load to ground at the switches 5 and 6 in deactivated mode. An analog signal is applied to the analog status output only when protection function is active. If several malfunctions appear coincident, the highest voltage level of the analog status output will dominate. Simultaniously the digital status output will be set. The IC is also protected against thermal overload. If a chip temperature of typically 155 °C is attained, the status outputs monitor overtemperature. If the temperature continues to increase, the inputs and outputs of the switches 5 and 6 are shutdown. The switches 1 to 4 will not shutdown, so precaution has to be taken in the application to prevent a further increase of the chiptemperature, which may destroy the IC. After cooling down below 140 °C the overtemperature monitoring will be reseted and the outputs of the switches 5 and 6 can be activated again. If the minimum supply voltage for operation is not maintained, the outputs are deactivated. At a supply voltage of higher than 1.8 V, the outputs 1 to 4 are switched on, if pin 14 (PREFST) is connected to ground over a resistance smaller 1 M Ω. The outputs 1 to 4 can be controlled via the inputs, if pin 14 (PREFST) is switched to high or not connected. Characteristics may be beyond the specified values. Full function is guaranteed in the supply voltage range of 5 V ± 5 %.

Tj = – 40 to 150 °C Parameter Symbol Limit Values Unit Remarks min. max. Voltages Supply voltage Supply voltage load circuit Input voltage VS VQ1-6 VIN1-6 , VPREFST – 1 – 0.7 – 0.7 V V V Currents Output current Current at reverse poling Current at reverse poling Clamping current Clamping current IQ1-6 IQ5-6 IQ1-4 IQZ5-6 IQZ1-4 – 500 – 50 700 mA mA mA mA limited internally see diagram Junction temperature Storage temperature Tj Tstg – 40 – 55 150 125 Overtemperature protection shuts down the switches 5 and 6 at 165 °C Operating Range Supply voltage VS VS 4.75 5.25 V full function, but status outputs cannot be evaluated Output voltage VQ – 0.3 24 V Ambient temperature TA – 40 110 °C Tj ≤ 150 °C Invert current for Q1-6 in total Isup 50 mA Input voltage VIN – 0.5 15 V Thermal resistance junction to case junction to ambient Rth JC Rth JA K/W K/W 1) Pins 5 to 8 and 17 to 20 have to be connected to the ground-plane used as thermal heatsink to achieve the optimum thermal resistance.

VS = 5 V, unless stated otherwise; Tj = – 40 to 140 °C Parameter Symbol Limit Values Unit Test Condition min. typ. max. Supply Voltage (VS) Quiescent current Supply Current IS IS mA mA Outputs OFF Outputs ON Inputs (IN1-6, PREFST) H-input voltage L-input voltage Hysteresis H-Input current L-Input current Input current VIH VIL ∆VI IIH IIL II 1.28 0.9 0.27 – 2 – 17 – 2 1.8 1.2 0.6 2.1 1.5 1.0 3.4 V V V µA µA µA

0.9 V < VI < 6 V

0.2 V < VI < 0.9 V

0 V < VI < 6 V; VS = 0 V

Power Outputs (Q1-6) Load Current Saturation voltage Saturation voltage Saturation voltage Compare voltage Turn-ON delay time Turn-OFF delay time IQ1-4 VQSat5, 6 VQSat1-4 VQSat1-4 Vcom tDON tDOFF 4.1 0.2 0.1 0.5 0.4 0.95 0.7 0.25 4.7 1.6 3.5 mA V V V V µs µs VS = 2 V and resistance from PREFST to ground < 1 MΩ IQ = 0.4 A; output ON IQ = 50 mA; output ON IQ = 20 mA; output ON see diagrams 20 mA < IQ1-4 < 50 mA, 200 mA < IQ5,6 < 500 mA Overtemp. Protection Monitoring threshold Shutdown threshold hysteresis Reset threshold TthSt Ttho TthRes 150 140 155 150 K only switches 5 and 6 are shut down after shutdown

Outputs (Q1-6) Clamping voltage Clamping voltage Shorted load current Shorted load current Shorted load current Sink current Shutdown threshold Leakage current Leakage current VQ1-4 VQ5, 6 IQ1-4 max IQ5, 6 IQ5, 6 IQ1-4 IQ5, 6 25.5 25.5 500 480 33.3 35.1 170 900 900 1.9 200 V V mA mA µA µA µA µA IQ = 50 mA IQ = 500 mA VQ < 16.5 V VQ ≤ 10 V; Tj ≤ 130 °C Tj = 150 °C VQ = 5 V switches off, VQ = 24 V Tj = 125 °C switches off, VQ = 16.5 V Tj = 125 °C Status Output Analog (StA) Normal function Error output 6 Error output 5 Overload output 4 Overload output 3 Overload output 2 Overload output 1 Thermal overload Source resistance of analog status output Delay time of status Delay time of output protection VStA VStA VStA VStA VStA VStA VStA VStA RQStA tdStA/D tdSQ1-6 1.0 1.4 1.8 2.2 2.6 3.0 3.5 8.8 0.5 1.3 1.7 2.1 2.5 2.9 3.3 250 V V V V V V V V Ω µs µs – IQStA = 50 ... 100 µA overload at switches 5 and 6 switches 5 and 6 during turn on Status Output Digital (StD) Pull-up resistance Saturation voltage RStD VStDSat 82 0 3 2 0.4 kΩ V IStD = 4 mA Characteristics (cont’d) VS = 5 V, unless stated otherwise; Tj = – 40 to 140 °C Parameter Symbol Limit Values Unit Test Condition min. typ. max.

S1 in position 1: all outputs can be activated (position 1) or deactivated (position 2) by S2 S1 in position 2: preferred state

*) The capacitance depends on the inductance and current load of the supply.

Note: While 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. Permissible Load Inductance versus Load Current Shorted Load Current IQ5, 6 versus Output Voltage (Outputs 5 and 6)

Signals of Inputs and Outputs of Switches 1 to 6 Normal Function (no Error)

Signals of Inputs and Outputs of Switches 1 to 4 Shorted Load to Supply Voltage of Load Circuit Signals of Inputs and Outputs of Switches 5 and 6 Shorted Load to Supply Voltage of Load Circuit

Signals of Inputs and Outputs of Switches 5 and 6 Shorted Load to Ground

(Plastic Dual Small Outline Package) Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book “Package Information”. Dimensions in mmSMD = Surface Mounted Device

Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 München © Infineon Technologies AG 2000. All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be consid- ered as warranted characteristics. T erms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non- infringement, regarding circuits, descriptions and charts stated herein. Infineon Technologiesis an approved CECC manufacturer. Information For further information on technology, deliv- ery terms and conditions and prices please contact your nearest Infineon Technologies Office in Germany or our Infineon Technolo- gies Representatives worldwide (see ad- dress list). Warnings Due to technical requirements components may contain dangerous substances. For in- formation on the types in question please contact your nearest Infineon Technologies Office. Infineon T echnologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the fail- ure of that life-support device or system, or to affect the safety or effectiveness of that de- vice or system. Life support devices or sys- tems are intended to be implanted in the hu- man body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. TLE 4226 G