1、 Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 1 Smart Quad Channel Low-Side Switch Features Product Summary Shorted Circuit Protection Overtemperature Protection Overvoltage Protection Parallel Control of the Inputs (PWM Applications) Seperate Diagnostic Pin for Each Channel Power - SO 20 - Package
2、 with integratedcooling area Standby mode with low current consumption C compatible Input Electrostatic Discharge (ESD) Protection Application All kinds of resistive and inductive loads (relays,electromagnetic valves) C compatible power switch for 12 and 24 V applications Solenoid control switch in
3、automotive and industrial control systems Robotic Controls General description Quad channel Low-Side-Switch (2x5A/2x3A) in Smart Power Technology (SPT) with four separate in- puts and four open drain DMOS output stages. The TLE 6228 GP is fully protected by embedded pro- tection functions and design
4、ed for automotive and industrial applications. Each channel has its own status signal for diagnostic feedback. Therefore the TLE 6228 GP is particularly suitable for ABS or Powertrain Systems. Block Diagram Supply voltage V S4.8 - 32 V Drain source voltage V DS(AZ)max60 V On resistance R ON 1,20.23
5、R ON 3,40.28 Output current I D 1,2 (max) 2 x 5 A I D 3,4 (max) 2 x 3 A P-DSO-20-12Ordering Code: Q67006-A9364 Output Stage Gate Control LOGIC ST1 ST2 4 GND VS ST3 1 4 IN1 IN2 IN3 IN4 OUT1 OUT4 STBY V BBas Ch. 1as Ch. 1as Ch. 1 GND normal function SCB / overload overtemperature open load/sh. to gnda
6、s ST 1as ST 1as ST 1 ST4 ENA Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 2 Detailed Block Diagram VS LOGIC LOGIC ST4 IN4 ST1 IN1 ENA Open Load Overload Open Load Overload Overtemperature Channel 1 Overtemperature Channel 4 LOGIC LOGIC GND ST3 IN3 ST2 IN2 Open Load Overload Open Load Overload STBY
7、internal supply IPD Overtemperature Channel 2 Overtemperature Channel 3 IPD IPD IPD OUT1 OUT OUT OUT Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 3 Pin Description Pin Configuration (Top view) Pin Symbol Function 1 GND Ground 2 OUT1 Power Output channel 1 3 ST1 Status Output channel 1 4 IN4 Control
8、 Input channel 4 5 VS Supply Voltage 6 STBY Standby 7 IN3 Control Input channel 3 8 ST2 Status Output channel 2 9 OUT2 Power Output channel 2 10 GND Ground 11 GND Ground 12 OUT3 Power Output channel 3 13 ST3 Status Output channel 3 14 IN2 Control Input channel 2 15 GND Ground Logic 16 ENA Enable Inp
9、ut for all four channels 17 IN1 Control Input channel 1 18 ST4 Status Output channel 4 19 OUT4 Power Output channel 4 20 GND Ground Heat slug internally connected to ground pins GND 1 20 GND OUT1 2 19 OUT4 ST1 3 18 ST4 IN4 4 17 IN1 VS 5 16 ENA STBY 6 15 GNDL IN3 7 14 IN2 ST2 8 13 ST3 OUT2 9 12 OUT3
10、GND 10 11 GND P - DSO - 20 - 12 Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 4 Maximum Ratings for T j= 40C to 150C The maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC will result. Parameter Symbol Values Unit Supply
11、voltage V S -0.3 . + 40 V Continuous drain source voltage (OUT1.OUT4) V DS 45 V Input voltage IN1 to IN4, ENA V IN , V ENA - 0.3 . + 6 V Input voltage STBY V STBY - 0.3 . + 40 Status output voltage V ST - 0.3 . + 32 V Load Dump Protection V Load Dump = U P +U S ; U P =13.5 V R I 1 ) =2 ; t d =400ms;
12、 IN = low or high With R L = 5 for Ch. 1,2; 10 for Ch. 3,4 (I D= 2,7A respectively 1,35A) V Load Dump 2 ) 55 V Operating temperature range Storage temperature range T j T stg - 40 . + 150 - 55 . + 150 C Output current per channel (see page 6) I D(lim) I D(lim) min A Status output current I ST - 5 .
13、+ 5 mA Inductive load switch off energy (single pulse) T j= 25C E AS 50 mJ Electrostatic Discharge Voltage (human body model) according to MIL STD 883D, method 3015.7 and EOS/ESD assn. standard S5.1 - 1993 V ESD 2000 V DIN Humidity Category, DIN 40 040 E IEC Climatic Category, DIN IEC 68-1 40/150/56
14、 Thermal resistance junction case (die soldered on the frame) junction - ambient min. footprint junction - ambient 6 cm 2cooling area R thJC R thJA 2 50 38 K/W1 )R I =internal resistance of the load dump test pulse generator LD200 2 )V LoadDumpis setup without DUT connected to the generator per ISO
15、7637-1 and DIN 40 839. PCB with heat pipes, backside 6 cm 2cooling area Minimum footprint Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 5 Electrical Characteristics Parameter and Conditions Symbol Values Unit V S= 4.8 to 18 V ; T j= - 40 C to + 150 C (unless otherwise specified) min typ max 1. Power
16、 Supply (V S ) Supply current (Outputs ON) I S 8m A Supply current (Outputs OFF) V ENA= L, V STBY= H I S 4m A Standby current V STBY= L I S 10 A Operating voltage V S 4.8 32 V 2. Power Outputs ON state resistance Channel 1,2 T j= 25 C I D= 1A; V S 9.5 V T j= 150C R DS(ON) 0.23 0.26 0.5 ON state resi
17、stance Channel 3,4 T j= 25 C I D= 1A; V S 9.5 V T j= 150C R DS(ON) 0.28 0.4 0.75 Z-Diode clamping voltage (OUT1.4) I D 100 mA V DS(AZ) 45 60 V Pull down current V STBY= H, V IN= L I PD 10 20 50 A Output leakage current 3 V STBY= L, 0V V DS 20V I Dlk 5 A Output turn on time 4I D= 1 A Output turn off
18、time 4 I D= 1 A Output on fall time 4I D= 1 A Output off rise time 4 I D= 1 A Overload switch-off delay time 4 Output off status delay time 4Failure extension Time for Status Report Input Suppression Time Open Load (off) filtering Time 5 t on t off t fall t rise t DSO t D t D-failure t D-IN t fOL(of
19、f) 3 3 3 3 20 500 500 500 10 15 20 10 5 60 1200 1200 1200 30 50 60 30 30 100 3000 3000 3000 100 s 3. Digital Inputs (IN1, IN2, IN3, IN4, ENA) Input low voltage V INL - 0.3 1.0 V Input high voltage V INH 2.0 6.0 V Input voltage hysteresis 5 V INHys 50 200 mV Input pull down current V IN= 5 V; V S 6.5
20、 V I IN 10 30 60 A Enable pull down current V ENA= 5 V; V S 6.5 V I ENA 10 20 40 A 4. Digital Status Outputs (ST1 - ST4) Open Drain Output voltage low I ST= 2 mA V STL 0.5 V Leakage current high I STH 2 A3If the output voltage exceeds 35V, this current (zener current of a internal structure) can ris
21、e up to 1mA 4See timing diagram, resistive load condition; V S 9 V 5This parameter will not be testet but assured by design Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 6 Electrical Characteristics Parameter and Conditions Symbol Values Unit V S= 4.8 to 18 V ; T j= 40 C to + 150 C (unless otherwise
22、 specified) min typ max 5. Standby Input (STBY) Input low voltage V STBY 01 V Input high voltage V STBY 3.5 V S V Input current V STBY= 18 V I STBY 300 A 6. Diagnostic Functions Open load detection voltage V S 6.5 V V ENA= X, V IN= L V DS(OL) 0.3*V S 0.33*V S 0.36*V S V Open load detection current c
23、hannel 1,2 V S 6.5 V V ENA= V IN= H I D(OL) 1,2 100 160 250 mA Open load detection current channel 3,4 V S 6.5 V V ENA= V IN= H I D(OL) 3,4 100 160 250 mA Overload detection current channel 1,2 V S 6.5 V I D(lim) 1,2 57 . 5 A Overload detection current channel 3,4 V S 6.5 V I D(lim) 3,4 35 . 5 A Ove
24、rtemperature shutdown threshold 5 Hysteresis T th T hys 170 10 200 C K Pulse Width for static diagnostic output t IN 500 s5This parameter will not be tested but assured by design Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 7 Application Description This IC is especially designed to drive inductive
25、 loads (relays, electromagnetic valves). Integrated clamp-diodes limit the output voltage when inductive loads are discharged. Four open-drain logic outputs indicate the status of the integrated ciruit. The following conditions are monitored and signalled:- overloading of output (also shorted load t
26、o supply) in active mode- open and shorted load to ground in active and inactive mode- overtemperature Circuit Description Input Circuits The control and enable inputs, both active high, consist of schmitt triggers with hysteresis. All inputs are provided with pull-down current sources. Not connecte
27、d inputs are interpreted as low and the re- spective output stages are switched off. In standby mode (STBY = LOW ) the current consumption is greatly reduced. The circuit is active when STBY = HIGH. If the standby function is not used, it is allowed to connect the standby pin directly to VS. Status
28、Signals: The status signals are undefined for 2ms after a power up event or a STBY low to high transition. Output Stages The four power outputs consist of DMOS-power transistors with open drains. The output stages are short circuit protected throughout the operating range. Each output has its own ze
29、nerclamp. This causes a voltage limitation at the power transistor when inductive loads are switched off. Parallel to the DMOS transistors there are internal pull down current sources. They are provided to detect an open load condition in the off state. They will be disconnected in the standby mode.
30、 Due to EMI measures there is an internal zenerclamp in parallel to the output stage. It gets active above 33V drain source voltage. This leads to an increasing leakage current up to 1 mA V DS= 40V. Protective Circuits The outputs are protected 6)against current overload and overtemperature. If the
31、output current in- creases above the overload detection threshold I QOfor a longer time then t DSOor the temperature in- creases above T th , then the power transistor is immediately switched off. It remains off until the control signal at the input is switched off and on again. Fault Detection The
32、status outputs indicate the switching state of the output stage. Under normal conditions is: ST = low Output off; ST = high Output on. If an error occurs, the logic level of the status output is in- verted, as listed in the diagnostic table.6)The integrated protection functions prevent an IC destruc
33、tion under fault conditions and may not be used in normal operation or permanently. Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 8 If current overload or overtemperature occurs for a longer time than t DSO , the fault condition is latched into an internal register and the output is shutdown. The re
34、set is done by switching off the correspond- ing control input for a time longer than t D-IN . Open load is detected for all four channels in on and off mode. In the on mode the load current is monitored. If it drops below the specified threshold value IQU then an open load condition is detected. In
35、 the off mode, the output voltage is monitored. An open load condition is detected when the output voltage of a given channel is below the threshold V DS(OL) , which is typ. 33 % of the supply voltage VS. To prevent an open load diagnosis in case of transient Voltages on the outputs the open load de
36、tection in off mode uses a filter of typ. 50s. Status output at pulse width operation If the input is operated with a pulsed signal, the status does not follow each single pulse of the input signal. An internal delay tD of typ. 1.2ms ( min 500 s) enables a continuous status output signal. See the ti
37、ming diagrams on the following pages for further information. This internal status delay simplifies diagnostic software for pwm applications. Diagnostic Table In general the status follows the input signal in normal operating conditions. If any error is detected the status is inverted. Operating Con
38、dition Standby Input Enable Input Control Input Power Output Status Output STBY ENA IN Q ST Standby L X X off H Normal function H H H L H H X L H offoff ON L L H Open load or short to ground H H H H L L H H L H L H off off off ON H H H L Overload or short to supply 1)reset latch 2) H H H H H L H H L
39、 X off off off L L L Overtemperature 1)reset latch 2) H H H H H L H H L X off off off L L L Note 1) : overload/short-to-supply/overtemperature - events shorter than min. time tDSO specified in 2.10 will not be latched and not reported at the status pin. Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002
40、9 Note 2) : to reset latched status-output in case of overload/short-to-supply/overtemperature the control input has to go low and stay low for longer than max. input suppression time t D-INspecified in 2.13 of the characteristics Failure Situations and Status Report Logic Block Diagram Open load “o
41、n“ 0.open load 1 normal cond. Open load “off“ 1.open load 0.normal cond. Overload 0.overload 1.normal cond. Input 1On 0. Off ENA 1enabled 0. disabled Overtemperature 1.overtemperature 0.normal cond. Delay D Delay D Delay D IN IN IN OUT OUT OUT EN EN EN Filter 30s HI Q Q SET CLR S R Gate Driver 1. Ou
42、tput 0Output Status 0High 1Low Delay 60s Delay D IN OUT t D 1,2ms typ. Delay 60s IN OUT t D 60s typ. t DSO Filter t D t D-INwhenload t D-failure t D-failure Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 10 Timing Diagrams Output Slope V VINH V t V DS t V ST 85% 15% t f t on t r t D t VS INL IN t off
43、 Fig. 1 Overload Switch OFF Delay I D I D(lim) I D(OL) t V ST t t DSO t D-failure Fig. 2 Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 11 Test Circuit VD = 5V 10k 10k 10k 10k ST1 ST2 ST3 ST4 IN1 IN2 IN3 IN4 ENA ST1 ST2 ST3 ST4 IN1 IN2 IN3 IN4 ENA STBY VS OUT1 OUT2 OUT3 OUT4 GND VS R L2 R L3 R L1 R L
44、4 OUT1 OUT2 OUT3 OUT4 TLE 6227 VST1 VST2 VST3 VIN1 VIN3 VIN4 VIN2 VST4 VENA VSTBY VDS(OUT4) VDS(OUT3) VDS(OUT2) VDS(OUT1) ID1 ID2 ID3 ID4 IST1 IST2 IST3 IST4 IIN2 IIN3 IIN1 IIN4 IENA ISTBY IVS TLE 6228 GP Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 12 Application Circuit STBY ST1 ST2 ST3 ST4 VS IN
45、1 IN2 IN3 IN4 ENA GND OUT1 OUT2 OUT3 OUT4 L1 L2 L3 L4 10k 10k 10k 10k Status Output Control Inputs Enable Input VD = 5V C +12V TLE 6228 The blocking capacitor C is recommended to avoid critical negative voltage spikes on VS in case of battery interruption during OFF-commutation. Datasheet TLE 6228 G
46、P V3.1 Page 26. Aug. 2002 13 Timing Diagrams of Diagnostic with Pulsed Input Signal Normal condition, resistive load, pulsed input signal t D t D IN V I D ST V t IN Fig. 3 Current Overload t DSO F current overload condition IN V I D ST V t DSO I D(lim) t INoff t D-IN t INoff t D-IN: Input suppressio
47、n time avoids a restart after overtemperature Fig. 4 Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 14 Diagnostic status output at different open load current conditions IN V I D ST V t D I D(OL) D-failure t Fig. 5 IN V I D ST V t D I D(OL) t INoff tD-failure t INOFFt D: Intermittend status signal Fi
48、g. 7 Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 15 Normal operation, followed by open load condition IN V I D ST V t D 12V 55V 33% Open load voltage condition DS V I D(OL) t D-failure t fOL(off)- t D-failure Fig. 8 Overtemperature IN V I D ST V t DSO Overtemperature t INoff t D-IN Reset of overlo
49、ad Flip Flop I D(OL) t D-failure t D-failure Fig. 9 Datasheet TLE 6228 GP V3.1 Page 26. Aug. 2002 16 Typical electrical Characteristics Drain-Source on-resistance R DS(ON)= f (T j ) ; V s= 9,5V Output Clamping Voltage V DS(AZ)= f (T j ) ; I D= 100mA Figure 6 : Typical ON Resistance versus Junction-Temperature Channel 1-4 Figure 7 : Typical Clamp Voltage versus Junction-Temperature Channel 1-4 Typical Drain- Source ON-Resistance 0,15 0,2 0,25 0,3 0,35 0,4 0,45 -50 -25 0 25 50 7
