PROFET® BTS 640 S2 Smart Sense High-Side Power Switch Features • Short circuit protection • Current limitation • Proportional load current sense • CMOS compatible input • Open drain diagnostic output • Fast demagnetization of inductive loads • Undervoltage and overvoltage shutdown with auto-restart and hysteresis • Overload protection • Thermal shutdown • Overvoltage protection including load dump (with external GND-resistor) • Reverse battery protection (with external GNDresistor) • Loss of ground and loss of Vbb protection • Electrostatic discharge (ESD) protection Product Summary Operating voltage On-state resistance Load current (ISO) Current limitation Vbb(on) RON IL(ISO) IL(SCr) 5.0 ... 34 V 30 mΩ 12.6 A 24 A Package TO220-7-11 1 Standard (staggered) TO263-7-2 TO220-7-12 1 SMD 1 Straight Application • µC compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads • All types of resistive, inductive and capacitve loads • Replaces electromechanical relays, fuses and discrete circuits General Description N channel vertical power FET with charge pump, ground referenced CMOS compatible input and diagnostic feedback, proportional sense of load current, monolithically integrated in Smart SIPMOS technology. Fully protected by embedded protection functions. Block Diagram 4 + V bb Voltage OvervoltageCurrent source protection Gate limit protection V Logic 3 1 Charge pump sensor Level shifter Limit for unclamped ind. loads Rectifier IN ST OUT Voltage ESD IL Current Sense Output Voltage detection Logic Load R Temperature sensor 5 6, 7 O GND IS I IS R GND IS PROFET Load GND 2 Signal GND Semiconductor Group Page 1 of 14 2002-Sep-30 BTS 640 S2 Pin Symbol 1 ST Function Diagnostic feedback: open drain, invers to input level 2 GND Logic ground 3 IN Input, activates the power switch in case of logical high signal 4 Vbb 5 IS Positive power supply voltage, the tab is shorted to this pin Sense current output, proportional to the load current, zero in the case of current limitation of load current 6&7 OUT (Load, L) Output, protected high-side power output to the load. Both output pins have to be connected in parallel for operation according this spec (e.g. kILIS). Design the wiring for the max. short circuit current Maximum Ratings at Tj = 25 °C unless otherwise specified Parameter Supply voltage (overvoltage protection see page 4) Supply voltage for full short circuit protection Symbol Vbb Vbb Values 43 34 Unit V V 60 V self-limited -40 ...+150 -55 ...+150 85 A °C 0,41 3,5 1.0 4.0 8.0 J Tj Start=-40 ...+150°C Load dump protection1) VLoadDump = VA + Vs, VA = 13.5V VLoad dump3) Load current (Short circuit current, see page 5) Operating temperature range Storage temperature range Power dissipation (DC), TC ≤ 25 °C Inductive load switch-off energy dissipation, single pulse IL Tj Tstg Ptot RI2)= 2 Ω, RL= 1 Ω, td= 200 ms, IN= low or high Vbb = 12V, Tj,start = 150°C, TC = 150°C const. IL = 12.6 A, ZL = 4,2 mH, 0 Ω: EAS IL = 4 A, ZL = 330 mH, 0 Ω: EAS Electrostatic discharge capability (ESD) IN: VESD (Human Body Model) ST, IS: out to all other pins shorted: W kV acc. MIL-STD883D, method 3015.7 and ESD assn. std. S5.1-1993 R=1.5kΩ; C=100pF Input voltage (DC) Current through input pin (DC) Current through status pin (DC) Current through current sense pin (DC) VIN IIN IST IIS -10 ... +16 ±2.0 ±5.0 ±14 V mA see internal circuit diagrams page 9 1) 2) 3) Supply voltages higher than Vbb(AZ) require an external current limit for the GND and status pins (a 150 Ω resistor in the GND connection is recommended). RI = internal resistance of the load dump test pulse generator VLoad dump is setup without the DUT connected to the generator according to ISO 7637-1 and DIN 40839 Semiconductor Group Page 2 2002-Sep-30 BTS 640 S2 Thermal Characteristics Parameter and Conditions Thermal resistance Symbol chip - case: RthJC junction - ambient (free air): RthJA SMD version, device on PCB4): min ---- Values typ max -- 1.47 -75 33 -- Unit K/W Electrical Characteristics Parameter and Conditions Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified Values min typ max Unit Load Switching Capabilities and Characteristics On-state resistance (pin 4 to 6&7) Tj=25 °C: RON Tj=150 °C: IL = 5 A Output voltage drop limitation at small load currents (pin 4 to 6&7), see page 15 IL = 0.5 A -- 27 54 30 60 mΩ -- 50 -- mV 11.4 12.6 -- A IL(NOM) IL(GNDhigh) 4.0 -- 4.5 -- -8 A mA ton toff 25 25 70 80 150 200 µs dV /dton 0.1 -- 1 V/µs -dV/dtoff 0.1 -- 1 V/µs VON(NL) Tj =-40...+150°C: Nominal load current, ISO Norm (pin 4 to 6&7) IL(ISO) VON = 0.5 V, TC = 85 °C Nominal load current, device on PCB4) TA = 85 °C, Tj ≤ 150 °C VON ≤ 0.5 V, Output current (pin 6&7) while GND disconnected or GND pulled up, Vbb=30 V, VIN= 0, see diagram page 10; not tested, specified by design Turn-on time Turn-off time RL = 12 Ω, Tj =-40...+150°C IN IN to 90% VOUT: to 10% VOUT: Slew rate on 10 to 30% VOUT, RL = 12 Ω, Tj =-40...+150°C Slew rate off 70 to 40% VOUT, RL = 12 Ω, Tj =-40...+150°C 4) Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm2 (one layer, 70µm thick) copper area for Vbb connection. PCB is vertical without blown air. Semiconductor Group Page 3 2002-Sep-30 BTS 640 S2 Parameter and Conditions Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified Values min typ max Operating Parameters Operating voltage 5) Undervoltage shutdown Undervoltage restart Vbb(on) Tj =-40...+150°C: Vbb(under) Tj =-40...+25°C: Vbb(u rst) Tj =+150°C: Undervoltage restart of charge pump see diagram page 14 Tj =-40...+25°C: Vbb(ucp) Tj =25...150°C: Undervoltage hysteresis ∆Vbb(under) 5.0 3.2 -- --4.5 34 5.0 5.5 6.0 V V V ---- 4.7 -0.5 6.5 7.0 -- V Overvoltage shutdown Overvoltage restart Overvoltage hysteresis Overvoltage protection6) 34 33 -41 43 --1 -47 43 ---52 V V V V ---- 4 12 -- 15 25 10 µA -- 1.2 3 mA Tj =-40...+150°C: Unit V ∆Vbb(under) = Vbb(u rst) - Vbb(under) Ibb=40 mA Vbb(over) Tj =-40...+150°C: Vbb(o rst) Tj =-40...+150°C: ∆Vbb(over) Tj =-40°C: Vbb(AZ) Tj =+25...+150°C Tj =-40...+150°C: Standby current (pin 4) Tj=-40...+25°C: Ibb(off) Tj= 150°C: IL(off) Off state output current (included in Ibb(off)) VIN=0 VIN=0, Tj =-40...+150°C: Operating current (Pin 2)7), VIN=5 V 5) 6) 7) µA IGND At supply voltage increase up to Vbb= 4.7 V typ without charge pump, VOUT ≈Vbb - 2 V Supply voltages higher than Vbb(AZ) require an external current limit for the GND and status pins (a 150 Ω resistor in the GND connection is recommended). See also VON(CL) in table of protection functions and circuit diagram page 10. Add IST, if IST > 0, add IIN, if VIN>5.5 V Semiconductor Group Page 4 2002-Sep-30 BTS 640 S2 Parameter and Conditions Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified Protection Functions Initial peak short circuit current limit (pin 4 to 6&7) IL(SCp) Tj =-40°C: Tj =25°C: =+150°C: Tj Repetitive short circuit shutdown current limit IL(SCr) Tj = Tjt (see timing diagrams, page 13) Output clamp (inductive load switch off) at VOUT = Vbb - VON(CL); IL= 40 mA, Tj =-40°C: Tj =+25..+150°C: Thermal overload trip temperature Thermal hysteresis Reverse battery (pin 4 to 2) 8) VON(CL) Tjt ∆Tjt -Vbb Reverse battery voltage drop (Vout > Vbb) IL = -5 A Tj=150 °C: -VON(rev) Values min typ max Unit 48 40 31 56 50 37 65 58 45 A -- 24 -- A 41 43 150 --- -47 -10 -- -52 --32 V °C K V -- 600 -- mV 4550 3300 5000 5000 6000 8000 4550 4000 5000 5000 5550 6500 5.4 6.1 6.9 V 0 -- 1 µA Diagnostic Characteristics Current sense ratio9), static on-condition, VIS = 0...5 V, Vbb(on) = 6.510)...27V, kILIS = IL / IIS Tj = -40°C, IL = 5 A: kILIS Tj= -40°C, IL= 0.5 A: Tj= 25...+150°C, IL= 5 A: , Tj= 25...+150°C, IL = 0.5 A: Current sense output voltage limitation Tj = -40 ...+150°C IIS = 0, IL = 5 A: VIS(lim) Current sense leakage/offset current Tj = -40 ...+150°C VIN=0, VIS = 0, IL = 0: IIS(LL) 8) Requires 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source diode has to be limited by the connected load. Note that the power dissipation is higher compared to normal operating conditions due to the voltage drop across the intrinsic drain-source diode. The temperature protection is not active during reverse current operation! Input and Status currents have to be limited (see max. ratings page 2 and circuit page 10). 9) This range for the current sense ratio refers to all devices. The accuracy of the k can be raised at least by ILIS a factor of two by matching the value of kILIS for every single device. In the case of current limitation the sense current IIS is zero and the diagnostic feedback potential VST is High. See figure 2b, page 12. 10) Valid if V bb(u rst) was exceeded before. Semiconductor Group Page 5 2002-Sep-30 BTS 640 S2 Parameter and Conditions Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified VIN=5 V, VIS = 0, IL = 0: IIS(LH) VIN=5 V, VIS = 0, VOUT = 0 (short circuit) IIS(SH) Values min typ max Unit 0 0 --- 15 10 tson(IS) -- -- 300 µs Current sense settling time to 10% of IIS static after negative input slope, IL = 5 0A, tsoff(IS) -- 30 100 µs -- 10 -- µs VOUT(OL) 2 3 4 V RO 5 15 40 kΩ 3,0 4,5 7,0 kΩ -1.5 -- --0.5 3.5 --- V V V 1 -- 50 µA 20 50 90 µA td(ST OL3) -- 400 -- µs tdon(ST) -- 13 -- µs tdoff(ST) -- 1 -- µs : (IIS(SH) not tested, specified by design) Current sense settling time to IIS static±10% after positive input slope, IL = 0 5 A, Tj= -40...+150°C (not tested, specified by design) Tj= -40...+150°C (not tested, specified by design) Current sense rise time (60% to 90%) after change 5 A (not tested, specified tslc(IS) of load current IL = 2.5 by design) Open load detection voltage11) (off-condition) Tj=-40..150°C: Internal output pull down (pin 6 to 2), VOUT=5 V, Tj=-40..150°C Input and Status Feedback12) Input resistance RI see circuit page 9 Input turn-on threshold voltage Tj =-40..+150°C: VIN(T+) Input turn-off threshold voltage Tj =-40..+150°C: VIN(T-) Input threshold hysteresis ∆ VIN(T) Off state input current (pin 3), VIN = 0.4 V Tj =-40..+150°C IIN(off) On state input current (pin 3), VIN = 5 V Tj =-40..+150°C IIN(on) Delay time for status with open load after Input neg. slope (see diagram page 14) Status delay after positive input slope (not tested, specified by design) Tj=-40 ... +150°C: Status delay after negative input slope (not tested, specified by design) 11) 12) Tj=-40 ... +150°C: External pull up resistor required for open load detection in off state. If a ground resistor RGND is used, add the voltage drop across this resistor. Semiconductor Group Page 6 2002-Sep-30 BTS 640 S2 Parameter and Conditions at Tj = 25 °C, Vbb = 12 V unless otherwise specified Values min typ max Status output (open drain) Zener limit voltage Tj =-40...+150°C, IST = +1.6 mA: VST(high) Tj =-40...+25°C, IST = +1.6 mA: VST(low) ST low voltage Tj = +150°C, IST = +1.6 mA: Status leakage current, VST = 5 V, Tj=25 ... +150°C: IST(high) 5.4 ---- Semiconductor Group Symbol Page 7 6.1 ---- 6.9 0.4 0.7 2 Unit V µA 2002-Sep-30 BTS 640 S2 Truth Table Normal operation Currentlimitation Short circuit to GND Overtemperature Short circuit to Vbb Open load Undervoltage Overvoltage Negative output voltage clamp L = "Low" Level H = "High" Level 13) 14) 15) 16) 17) Input Output Status Current Sense level level level L H L H L H L H L H L H L H L H L L H L H L L13) L L H H H L H H H H H H L14) L H (L17)) L H L H L H IIS 0 nominal 0 0 0 0 0 0 0 <nominal 15) 0 0 0 0 0 0 0 L16) H L L L L L X = don't care Z = high impedance, potential depends on external circuit Status signal after the time delay shown in the diagrams (see fig 5. page 13...14) The voltage drop over the power transistor is Vbb-VOUT>typ.3V. Under this condition the sense current IIS is zero 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. Low ohmic short to Vbb may reduce the output current IL and therefore also the sense current IIS. Power Transistor off, high impedance with external resistor between pin 4 and pin 6&7 Semiconductor Group Page 8 2002-Sep-30 BTS 640 S2 Status output Terms +5V V bb 4 I IN 3 I ST I IS V IN 1 Ibb VON Vbb IN OUT 6 R ST(ON) IL ST PROFET ST OUT IS VST 5 V IS 7 GND V 2 R GND OUT I GND GND ESDZD ESD-Zener diode: 6.1 V typ., max 5 mA; RST(ON) < 440 Ω at 1.6 mA, The use of ESD zener diodes as voltage clamp at DC conditions is not recommended. Input circuit (ESD protection) R IN Current sense output I V ESD-ZD I I IS I IS I IS GND R ESD-ZD IS GND The use of ESD zener diodes as voltage clamp at DC conditions is not recommended. ESD-Zener diode: 6.1 V typ., max 14 mA; RIS = 1 kΩ nominal Inductive and overvoltage output clamp + V bb V Z VON OUT GND PROFET VON clamped to 47 V typ. Semiconductor Group Page 9 2002-Sep-30 BTS 640 S2 Overvoltage protection of logic part GND disconnect + 5V + V bb R ST V RI IN V bb 4 3 Z2 1 ST Logic IS 5 RV V R IS Ibb IN Vbb ST PROFET 6 OUT 7 OUT IS GND 2 Z1 V V V IN ST IS V GND GND R GND Any kind of load. In case of Input=high is VOUT ≈ VIN - VIN(T+) . Signal GND Due to VGND >0, no VST = low signal available. VZ1 = 6.1 V typ., VZ2 = 47 V typ., RI= 4 kΩ typ, RGND= 150 Ω, RST= 15 kΩ, RIS= 1 kΩ, RV= 15 kΩ, GND disconnect with GND pull up 4 Reverse battery protection 3 + 5V IN Vbb OUT 1 - Vbb R ST RI IN 5 ST PROFET OUT IS Logic 6 7 GND 2 ST VZ1 IS OUT Power Inverse Diode RV R IS V bb RL RGND Vbb disconnect with energized inductive load Power GND The load RL is inverse on, temperature protection is not active RGND= 150 Ω, RI= 4 kΩ typ, RST≥ 500 Ω, RIS≥ 200 Ω, RV≥ 500 Ω, 4 high 5 V R bb R ST PROFET OUT OUT IS 6 7 GND Normal load current can be handled by the PROFET itself. EXT V Vbb V bb OFF Out IN 2 OFF-state diagnostic condition: VOUT > 3 V typ.; IN low Logic 3 1 Open-load detection ST V GND Any kind of load. If VGND > VIN - VIN(T+) device stays off Due to VGND >0, no VST = low signal available. GND Signal GND V V V IN ST IS OUT O Signal GND Semiconductor Group Page 10 2002-Sep-30 BTS 640 S2 Vbb disconnect with charged external inductive load 4 high 3 1 5 IN Vbb ST PROFET OUT OUT IS 6 D 7 GND 2 R L L V bb If other external inductive loads L are connected to the PROFET, additional elements like D are necessary. Inductive Load switch-off energy dissipation E bb E AS 4 3 1 = 5 Vbb IN ST ELoad Vbb OUT PROFET OUT IS 6 7 GND EL 2 ER Energy stored in load inductance: 2 EL = 1/2·L·I L While demagnetizing load inductance, the energy dissipated in PROFET is EAS= Ebb + EL - ER= VON(CL)·iL(t) dt, with an approximate solution for RL > 0 Ω: EAS= IL· L IL·RL ·(V + |VOUT(CL)|)· ln (1+ ) 2·RL bb |VOUT(CL)| Semiconductor Group Page 11 2002-Sep-30 BTS 640 S2 Timing diagrams Figure 1a: Switching a resistive load, change of load current in on-condition: Figure 2a: Switching a lamp IN IN ST t don(ST) ST t doff(ST) V VOUT t on IL OUT t off t slc(IS) Load 1 t slc(IS) IL Load 2 IIS tson(IS) I IS t t t soff(IS) The sense signal is not valid during settling time after turn or change of load current. Figure 2b: Switching a lamp with current limit: IN Figure 1b: Vbb turn on: IN ST Vbb VOUT I L IL I IS IIS t ST t proper turn on under all conditions Semiconductor Group Page 12 2002-Sep-30 BTS 640 S2 Figure 4a: Overtemperature: Reset if Tj <Tjt Figure 2c: Switching an inductive load: IN IN ST ST VOUT IL IL I IS IIS TJ t t Figure 3a: Short circuit: shut down by overtempertature, reset by cooling Figure 5a: Open load: detection in ON-state, open load occurs in on-state IN IL IN IL(SCp) I L(SCr) ST VOUT I IS IL ST open normal t IIS Heating up may require several milliseconds, depending on external conditions IL(SCp) = 50 A typ. increases with decreasing temperature. Semiconductor Group normal Page 13 t 2002-Sep-30 BTS 640 S2 Figure 6b: Undervoltage restart of charge pump Figure 5b: Open load: detection in ON- and OFF-state (with REXT), turn on/off to open load VON(CL) V on IN V on-state off-state ST V off-state td(ST OL3) bb(over) OUT V V bb(o rst) bb(u rst) V I L bb(u cp) open load V bb(under) V bb I IS t charge pump starts at Vbb(ucp) =4.7 V typ. Figure 7a: Overvoltage: Figure 6a: Undervoltage: IN IN ST not defined ST Vbb VON(CL) V bb(over) V bb(o rst) V bb V bb(under) I Vbb(u cp) Vbb(u rst) IL L I IIS IS t t Semiconductor Group Page 14 2002-Sep-30 BTS 640 S2 Figure 8b: Current sense ratio18: Figure 8a: Current sense versus load current: 15000 1.3 [mA] 1.2 k ILIS I IS 1.1 1 10000 0.9 0.8 0.7 0.6 5000 0.5 0.4 0.3 0.2 0.1 [A] I L 0 IL 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 0 1 2 3 4 5 [A] 6 Figure 9a: Output voltage drop versus load current: VON [V] 0.2 RON 0.1 VON(NL) IL 0.0 0 18 Semiconductor Group Page 15 1 2 3 4 5 6 7 [A] 8 This range for the current sense ratio refers to all devices. The accuracy of the kILIS can be raised at least by a factor of two by matching the value of kILIS for every single device. 2002-Sep-30 BTS 640 S2 Package and Ordering Code All dimensions in mm Straight: P-TO220-7-12 Sales code BTS640S2 Ordering code Q67060-S6307-A5 BTS640S2 S Ordering code Q67060-S6307-A7 A 10 ±0.2 9.8 ±0.15 8.5 4.4 0...0.15 0.25 A C Typical All metal surfaces tin plated, except area of cut. SMD: P-TO263-7-2 (tape&reel) Sales code BTS640S2 G 4.4 9.8 ±0.15 1.27 ±0.1 B 0.1 0.05 4.7 ±0.5 2.7 ±0.3 2.4 1.3 ±0.3 8 1) 9.25 ±0.2 (15) 1±0.3 A 8.5 1) 0...0.15 7x0.6 ±0.1 0.5 ±0.1 6x1.27 8˚ max. 0.25 1) M A B 0.1 0.5 ±0.1 2.4 2.8 ±0.2 0.25 M A B C Typical All metal surfaces tin plated, except area of cut. Published by Siemens AG, Bereich Bauelemente, Vertrieb, Produkt-Information, Balanstraße 73, D-81541 München Siemens AG 2002. All Rights Reserved As far as patents or other rights of third parties are concerned, liability is only assumed for components per se, not for applications, processes and circuits implemented within components or assemblies. The information describes a type of component and shall not be considered as warranted characteristics. The characteristics for which SIEMENS grants a warranty will only be specified in the purchase contract. Terms of delivery and rights to change design reserved. For questions on technology, delivery and prices please contact the Offices of Semiconductor Group in Germany or the Siemens Companies and Representatives woldwide (see address list). Due to technical requirements components may contain dangerous substances. For information on the type in question please contact your nearest Siemens Office, Semiconductor Group. Siemens AG is an approved CECC manufacturer. Packing: Please use the recycling operators known to you. We can also help you - get in touch with your nearest sales office. By agreement we will take packing material back, if it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or which we are not obliged to accept we shall have to invoice you for any costs incurred. Components used in life-support devices or systems must be expressly authorised for such purpose! Critical components19) of the Semiconductor Group of Siemens AG, may only be used in life supporting devices or systems20) with the express written Typical All metal surfaces tin plated, except area of cut. Ordering code 0.05 7x 0.6 ±0.1 1.27 8.4 ±0.4 10 ±0.2 1) 0...0.15 1) 1) 4.4 1.27 ±0.1 0.5 ±0.1 3.9 ±0.4 M 13.4 17 ±0.3 15.65 ±0.3 3.7 ±0.3 C 2.4 7x 0.6 ±0.1 1.27 9.25 ±0.2 2.8 ±0.2 8.6 ±0.3 C 0.05 B 8.5 1) 3.7 -0.15 1.27 ±0.1 10.2 ±0.3 17 ±0.3 15.65 ±0.3 13.4 1) 3.7 -0.15 A 9.8 ±0.15 11±0.5 1) 13 ±0.5 10±0.2 Sales Code 9.25 ±0.2 Standard (=staggered): P-TO220-7-11 approval of the Semiconductor Group of Siemens AG. Q67060-S6307-A6 19) A critical component is a component used in a life-support device or system whose failure can reasonably be expected to cause the failure of that life-support device or system, or to affect its safety or effectiveness of that device or system. 20) Life support devices or systems are intended (a) to be implanted in the human body or (b) support and/or maintain and sustain and/or protect human life. If they fail, it is reasonably to assume that the health of the user or other persons may be endangered. Semiconductor Group Page 16 2002-Sep-30