Datasheet For Ps219b4

Transcript

< Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS PS219B4-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE OUTLINE MAIN FUNCTION AND RATINGS  3 phase DC/AC inverter  600V / 15A (CSTBT)  N-side IGBT open emitter  Built-in bootstrap diodes with current limiting resistor APPLICATION  AC 100~240Vrms(DC voltage:400V or below) class low power motor control TYPE NAME PS219B4-S/-AS/-CS PS219B4-ST/-AST/-CST With temperature output function With OT protection function Long terminal type(-AS/-AST) INTEGRATED DRIVE, PROTECTION AND SYSTEM CONTROL FUNCTIONS For P-side : Drive circuit, High voltage high-speed level shifting, Control supply under-voltage (UV) protection For N-side : Drive circuit, Control supply under-voltage protection (UV), Short circuit protection (SC), Over temperature protection (OT, -ST/-AST/-CST only) Fault signaling : Corresponding to SC fault (N-side IGBT), UV fault (N-side supply) Temperature output : Outputting LVIC temperature by analog signal (-S/-AS/-CS only) Input interface : 3, 5V line, Schmitt trigger receiver circuit (High Active) UL Recognized : UL1557 File E323585 INTERNAL CIRCUIT P(24) IGBT1 VUFB(2) Di1 VVFB(3) U(23) IGBT2 VWFB(4) Di2 HVIC UP(5) V(22) VP(6) IGBT3 Di3 IGBT4 Di4 W P(7) VP1(8) W(21) VNC(9) UN(10) NU(20) VN(11) IGBT5 W N(12) Di5 VN1(13) NV(19) FO(14) LVIC IGBT6 Di6 CIN(15) VNC(16) NW(18) VOT(17) ·Built-in temperature output type: VOT (-S/-AS/-CS) ·Built-in OT type: NC (No Connection) (-ST/-AST/-CST) 1 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE MAXIMUM RATINGS (Tj = 25°C, unless otherwise noted) INVERTER PART Symbol VCC VCC(surge) VCES ±IC ±ICP PC Tj Parameter Supply voltage Supply voltage (surge) Collector-emitter voltage Each IGBT collector current Each IGBT collector current (peak) Collector dissipation Junction temperature Condition Applied between P-NU,NV,NW Applied between P-NU,NV,NW TC= 25°C TC= 25°C, less than 1ms TC= 25°C, per 1 chip (Note 1) Ratings 450 500 600 15 30 33.3 -20~+150 Unit V V V A A W °C Note1: The maximum junction temperature rating of built-in power chips is 150°C(@Tc≤100°C).However, to ensure safe operation of DIPIPM, the average junction temperature should be limited to Tj(Ave)≤125°C (@Tc≤100°C). CONTROL (PROTECTION) PART Symbol VD VDB VIN VFO IFO VSC Parameter Control supply voltage Control supply voltage Input voltage Fault output supply voltage Fault output current Current sensing input voltage Condition Applied between VP1-VPC, VN1-VNC Applied between VUFB-VUFS, VVFB-VVFS, VWFB-VWFS Applied between UP, VP, WP-VPC, UN, VN, WN-VNC Applied between FO-VNC Sink current at FO terminal Applied between CIN-VNC Ratings 20 20 -0.5~VD+0.5 -0.5~VD+0.5 1 -0.5~VD+0.5 Unit V V V V mA V Ratings Unit 400 V -20~+100 -40~+125 °C °C 1500 Vrms TOTAL SYSTEM Symbol TC Tstg Parameter Self protection supply voltage limit (Short circuit protection capability) Module case operation temperature Storage temperature Viso Isolation voltage VCC(PROT) Condition VD = 13.5~16.5V, Inverter Part Tj = 125°C, non-repetitive, less than 2 s Measurement point of Tc is provided in Fig.1 60Hz, Sinusoidal, AC 1minute, between connected all pins and heat-sink plate Fig. 1: TC MEASUREMENT POINT Control terminals DIPIPM 11.6mm 3mm IGBT chip position Tc point Heat sink side Power terminals THERMAL RESISTANCE Symbol Rth(j-c)Q Rth(j-c)F Parameter Junction to case thermal resistance (Note 2) Condition Inverter IGBT part (per 1/6 module) Inverter FWDi part (per 1/6 module) Min. - Limits Typ. - Max. 3.0 3.9 Unit K/W K/W Note 2: Grease with good thermal conductivity and long-term endurance should be applied evenly with about +100 m~+200 m on the contacting surface of DIPIPM and heat-sink. The contacting thermal resistance between DIPIPM case and heat sink Rth(c-f) is determined by the thickness and the thermal conductivity of the applied grease. For reference, Rth(c-f) is about 0.3K/W (per 1/6 module, grease thickness: 20 m, thermal conductivity: 1.0W/m•k). 2 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE ELECTRICAL CHARACTERISTICS (Tj = 25°C, unless otherwise noted) INVERTER PART Symbol VCE(sat) VEC ton tC(on) toff tC(off) trr ICES Parameter Condition Tj= 25°C Tj= 125°C Collector-emitter saturation voltage VD=VDB = 15V, VIN= 5V, IC= 15A FWDi forward voltage VIN= 0V, -IC= 15A Switching times VCC= 300V, VD= VDB= 15V IC= 15A, Tj= 125°C, VIN= 0 5V Inductive Load (upper-lower arm) Collector-emitter cut-off current VCE=VCES Tj= 25°C Tj= 125°C Min. 0.85 - Limits Typ. 1.50 1.60 1.70 1.45 0.45 1.50 0.35 0.30 - Max. 2.00 2.10 2.20 2.05 0.70 2.10 0.60 1 10 Min. 0.43 7.0 7.0 10.3 10.8 2.63 0.88 100 4.9 20 0.70 0.80 Limits Typ. 0.48 10.0 10.0 2.77 1.13 120 10 1.00 2.10 1.30 Max. 2.80 2.80 0.10 0.10 0.53 12.0 12.0 12.5 13.0 2.91 1.39 140 0.95 1.50 2.60 - 0.35 0.65 - 1.1 80 1.7 100 2.3 120 Unit V V s s s s s mA CONTROL (PROTECTION) PART Symbol Parameter ID VD=15V, VIN=0V VD=15V, VIN=5V VD=VDB=15V, VIN=0V VD=VDB=15V, VIN=5V Total of VP1-VNC, VN1-VNC Circuit current IDB VSC(ref) UVDBt UVDBr UVDt UVDr VOT OTt OTrh VFOH VFOL tFO IIN Vth(on) Vth(off) Vth(hys) VF R Condition Short circuit trip level P-side Control supply under-voltage protection(UV) N-side Control supply under-voltage protection(UV) Temperature Output (-S/-AS/-CS only) Overt temperature protection (OT, -ST/-AST/-CST only) (Note5) Fault output voltage Each part of VUFB-U, VVFB-V, VWFB-W VD = 15V (Note 3) Trip level Reset level Trip level Reset level Tj ≤125°C LVIC Temperature=90C LVIC Temperature=25C VD = 15V Trip level Detect LVIC temperature Hysteresis of trip-reset VSC = 0V, FO terminal pulled up to 5V by 10k VSC = 1V, IFO = 1mA Pull down R=5k (Note 4) Fault output pulse width Input current ON threshold voltage OFF threshold voltage ON/OFF threshold hysteresis voltage Bootstrap Di forward voltage IF=10mA including voltage drop by limiting resistor Built-in limiting resistance Included in bootstrap Di (Note 6) VIN = 5V Applied between UP, VP, WP, UN, VN, WN-VNC (Note 7) Unit mA V V V V V V V °C °C V V s mA V V Note 3 : SC protection works only for N-side IGBT. Please select the external shunt resistance such that the SC trip-level is less than 1.7 times of the current rating. Note 4 : DIPIPM don't shutdown IGBTs and output fault signal automatically when temperature rises excessively. When temperature exceeds the protective level that user defined, controller (MCU) should stop the DIPIPM. Temperature of LVIC vs. VOT output characteristics is described in Fig. 3. 5 : When the LVIC temperature exceeds OT trip temperature level(OTt), OT protection works and Fo outputs. In that case if the heat sink dropped off or fixed loosely, don't reuse that DIPIPM. (There is a possibility that junction temperature of power chips exceeded maximum Tj(150C). 6 : Fault signal Fo outputs when SC, UV or OT protection works. Fo pulse width is different for each protection modes. At SC failure, Fo pulse width is a fixed width (=minimum 20 s), but at UV or OT failure, Fo outputs continuously until recovering from UV or OT state. (But minimum Fo pulse width is 20 s.) 7 : The characteristics of bootstrap Di is described in Fig.2. Fig. 2 Characteristics of bootstrap Di VF-IF curve (@Ta=25C) including voltage drop by limiting resistor (Right chart is enlarged chart.) 160 140 120 100 80 60 40 20 0 30 IF [mA] IF [mA] 25 20 15 10 5 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 V F [V] 0.0 3 0.5 1.0 1.5 2.0 V F [V] 2.5 3.0 3.5 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE Fig. 3 Temperature of LVIC vs. VOT output characteristics 4.0 3.8 Max. 3.6 Typ. 3.4 Min. 3.2 V OT output (V) _ 3.0 2.91 2.8 2.77 2.63 2.6 2.4 2.2 2.0 1.8 1.6 60 70 80 90 100 110 120 LVIC temperature (°C) Fig. 4 VOT output circuit Inside LVIC of DIPIPM Temperature Signal VOT Ref VNC MCU 5k (1) It is recommended to insert 5k or more (5.1k is recommended) pull down resistor for getting linear output characteristics at low temperature below room temperature. When the pull down resistor is inserted between VOT and VNC(control GND), the extra circuit current, which is calculated approximately by VOT output voltage divided by pull down resistance, flows as LVIC circuit current continuously. In the case of using VOT for detecting high temperature over room temperature only, it is unnecessary to insert the pull down resistor. (2) In the case of using VOT with low voltage controller like 3.3V MCU, VOT output might exceed control supply voltage 3.3V when temperature rises excessively. If system uses low voltage controller, it is recommended to insert a clamp Di between control supply of the controller and VOT output for preventing over voltage destruction. (3) In the case of not using VOT, leave VOT output NC (No Connection). Refer the application note for Super Mini DIPIPM Ver.5 series about the usage of VOT. 4 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE MECHANICAL CHARACTERISTICS AND RATINGS Parameter Min. 0.59 Limits Typ. 0.69 Max. 0.78 N m EIAJ-ED-4701 10 - - s EIAJ-ED-4701 2 - - times - 8.5 - g -50 - 100 m Condition Mounting torque Terminal pulling strength Terminal bending strength Mounting screw : M3 (Note 8) Control terminal: Load 4.9N Power terminal: Load 9.8N Control terminal: Load 2.45N Power terminal: Load 4.9N 90deg. bend Recommended 0.69N m Weight Heat-sink flatness (Note 9) Unit Note 8: Plain washers (ISO 7089~7094) are recommended. Note 9: Measurement point of heat sink flatness + - 4.6mm Measurement position 17.5mm Heat sink side + Heat sink side RECOMMENDED OPERATION CONDITIONS Symbol Parameter VCC VD VDB VD, VDB tdead fPWM Supply voltage Control supply voltage Control supply voltage Control supply variation Arm shoot-through blocking time PWM input frequency IO Allowable r.m.s. current PWIN(on) Minimum input pulse width PWIN(off) VNC VNC variation Tj Junction temperature Condition Applied between P-NU, NV, NW Applied between VP1-VPC, VN1-VNC Applied between VUFB-VUFS, VVFB-VVFS, VWFB-VWFS For each input signal TC ≤ 100°C, Tj ≤ 125°C VCC = 300V, VD = 15V, P.F = 0.8, Sinusoidal PWM TC ≤ 100°C, Tj ≤ 125°C (Note10) (Note 11) Between VNC-NU, NV, NW (including surge) Note 10: Allowable r.m.s. current depends on the actual application conditions. 11: DIPIPM might not make response if the input signal pulse width is less than PWIN(on), PWIN(off). 5 Min. 0 13.5 13.0 -1 1.0 - Limits Typ. 300 15.0 15.0 - Max. 400 16.5 18.5 +1 20 - - 8.0 - - 5.0 0.7 0.7 -5.0 -20 - +5.0 +125 Unit V V V V/ s s kHz Arms s °C < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE Fig. 5 Timing Charts of The DIPIPM Protective Functions [A] Short-Circuit Protection (N-side only with the external shunt resistor and RC filter) a1. Normal operation: IGBT ON and outputs current. a2. Short circuit current detection (SC trigger) (It is recommended to set RC time constant 1.5~2.0 s so that IGBT shut down within 2.0 s when SC.) a3. All N-side IGBT's gates are hard interrupted. a4. All N-side IGBTs turn OFF. a5. FO outputs for tFo=minimum 20 s. a6. Input = “L”: IGBT OFF a7. Fo finishes output, but IGBTs don't turn on until inputting next ON signal (LH). (IGBT of each phase can return to normal state by inputting ON signal to each phase.) a8. Normal operation: IGBT ON and outputs current. Lower-side control input a6 SET RESET Protection circuit state a3 Internal IGBT gate a4 SC a8 Output current Ic a1 a7 a2 Sense voltage of the shunt resistor Error output Fo a5 [B] Under-Voltage Protection (N-side, UVD) b1. Control supply voltage V D exceeds under voltage reset level (UVDr), but IGBT turns ON by next ON signal (LH). (IGBT of each phase can return to normal state by inputting ON signal to each phase.) b2. Normal operation: IGBT ON and outputs current. b3. VD level drops to under voltage trip level. (UVDt). b4. All N-side IGBTs turn OFF in spite of control input condition. b5. Fo outputs for tFo=minimum 20 s, but output is extended during VD keeps below UVDr. b6. VD level reaches UVDr. b7. Normal operation: IGBT ON and outputs current. Control input RESET Protection circuit state Control supply voltage VD UVDr SET b1 UVDt b2 b3 b4 Output current Ic Error output Fo b5 6 RESET b6 b7 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE [C] Under-Voltage Protection (P-side, UVDB) c1. Control supply voltage VDB rises. After the voltage reaches under voltage reset level UVDBr, IGBT turns on by next ON signal (LH). c2. Normal operation: IGBT ON and outputs current. c3. VDB level drops to under voltage trip level (UVDBt). c4. IGBT of the correspond phase only turns OFF in spite of control input signal level, but there is no FO signal output. c5. VDB level reaches UVDBr. c6. Normal operation: IGBT ON and outputs current. Control input RESET SET c1 UVDBt RESET Protection circuit state UVDBr Control supply voltage VDB c3 c2 c5 c6 c4 Output current Ic Error output Fo Keep High-level (no fault output) [D] Over Temperature Protection (N-side, Detecting LVIC temperature) d1. Normal operation: IGBT ON and outputs current. d2. LVIC temperature exceeds over temperature trip level(OTt). d3. All N-side IGBTs turn OFF in spite of control input condition. d4. Fo outputs for tFo=minimum 20 s, but output is extended during LVIC temperature keeps over OTt. d5. LVIC temperature drops to over temperature reset level. d6. Normal operation: IGBT turns on by next ON signal (LH). (IGBT of each phase can return to normal state by inputting ON signal to each phase.) Control input SET Protection circuit state OTt RESET d2 d5 Temperature of LVIC OTt - OTrh d1 d3 Output current Ic d4 Error output Fo 7 d6 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE Fig. 6 Example of Application Circuit Bootstrap negative electrodes should be connected to U,V,W terminals directly and separated from the main output wires P(24) IGBT1 C1 D1 C2 VUFB(2) + Di1 VVFB(3) U(23) + IGBT2 Di2 VWFB(4) + HVIC UP(5) V(22) M VP(6) IGBT3 Di3 W P(7) VP1(8) W(21) C2 + MCU VNC(9) IGBT4 UN(10) C3 Di4 VN(11) NU(20) W N(12) IGBT5 5V Fo(14) Di5 LVIC NV(19) VOT(17) IGBT6 Di6 5k Built-in temperature output type only (-S/-AS/-CS) 15V VD C1 + D1 VN1(13) C2 Long wiring here might cause SC level fluctuation and malfunction. CIN(15) B Long GND wiring here might generate noise to input signal and cause IGBT malfunction. C4 (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) C D R1 Shunt resistor A Control GND wiring (1) Long wiring here might cause short circuit failure NW(18) VNC(16) N1 Power GND wiring If control GND is connected with power GND by common broad pattern, it may cause malfunction by power GND fluctuation. It is recommended to connect control GND and power GND at only a point N1 (near the terminal of shunt resistor). It is recommended to insert a Zener diode D1(24V/1W) between each pair of control supply terminals to prevent surge destruction. To prevent surge destruction, the wiring between the smoothing capacitor and the P, N1 terminals should be as short as possible. Generally a 0.1-0.22 F snubber capacitor C3 between the P-N1 terminals is recommended. R1, C4 of RC filter for preventing protection circuit malfunction is recommended to select tight tolerance, temp-compensated type. The time constant R1C4 should be set so that SC current is shut down within 2 s. (1.5 s~2 s is general value.) SC interrupting time might vary with the wiring pattern, so the enough evaluation on the real system is necessary. To prevent malfunction, the wiring of A, B, C should be as short as possible. The point D at which the wiring to CIN filter is divided should be near the terminal of shunt resistor. NU, NV, NW terminals should be connected at near NU, NV, NW terminals. All capacitors should be mounted as close to the terminals as possible. (C1: good temperature, frequency characteristic electrolytic type and C2:0.22 -2 F, good temperature, frequency and DC bias characteristic ceramic type are recommended.) Input drive is High-active type. There is a minimum 3.3k pull-down resistor in the input circuit of IC. To prevent malfunction, the wiring of each input should be as short as possible. When using RC coupling circuit, make sure the input signal level meet the turn-on and turn-off threshold voltage. Fo output is open drain type. It should be pulled up to MCU or control power supply (e.g. 5V,15V) by a resistor that makes IFo up to 1mA. (IFO is estimated roughly by the formula of control power supply voltage divided by pull-up resistance. In the case of pulled up to 5V, 10k (5k or more) is recommended.) Thanks to built-in HVIC, direct coupling to MCU without any opto-coupler or transformer isolation is possible. Two VNC terminals (9 & 16 pin) are connected inside DIPIPM, please connect either one to the 15V power supply GND outside and leave another one open. If high frequency noise superimposed to the control supply line, IC malfunction might happen and cause DIPIPM erroneous operation. To avoid such problem, line ripple voltage should meet dV/dt ≤+/-1V/ s, Vripple≤2Vp-p. For DIPIPM, it isn't recommended to drive same load by parallel connection with other phase IGBT or other DIPIPM. 8 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE Fig. 7 MCU I/O Interface Circuit 5V line 10k Note) Design for input RC filter depends on PWM control scheme used in the application and wiring impedance of the printed circuit board. DIPIPM input signal interface integrates a minimum 3.3k pull-down resistor. Therefore, when inserting RC filter, it is necessary to satisfy turn-on threshold voltage requirement. Fo output is open drain type. It should be pulled up to control power supply (e.g. 5V, 15V) with a resistor that makes Fo sink current IFo 1mA or less. In the case of pulled up to 5V supply, 10k 5k or more is recommended. DIPIPM UP,VP,W P,UN,VN,W N MCU 3.3k (min) Fo VNC(Logic) Fig. 8 Pattern Wiring Around the Shunt Resistor NU, NV, NW should be connected each other at near terminals. DIPIPM DIPIPM Each wiring Inductance should be less than 10nH. Wiring Inductance should be less than 10nH. Inductance of a copper pattern with length=17mm, width=3mm is about 10nH. NU NV NW VNC Inductance of a copper pattern with length=17mm, width=3mm is about 10nH. N1 Shunt resistor NU NV NW VNC GND wiring from VNC should be connected close to the terminal of shunt resistor. N1 Shunt resistors GND wiring from VNC should be connected close to the terminal of shunt resistor. Low inductance shunt resistor like surface mounted (SMD) type is recommended. Fig. 9 Pattern Wiring Around the Shunt Resistor (for the case of open emitter) When DIPIPM is operated with three shunt resistors, voltage of each shunt resistor cannot be input to CIN terminal directly. In that case, it is necessary to use the external protection circuit as below. DIPIPM Drive circuit P P-side IGBT U V W External protection circuit Comparators (Open collector output type) N-side IGBT Rf C Drive circuit VNC Protection circuit CIN NW NV NU Cf B - Vref + Vref + Vref + 5V D Shunt resistors A OR output - N1 (1) It is necessary to set the time constant RfCf of external comparator input so that IGBT stops within 2 s when short circuit occurs. SC interrupting time might vary with the wiring pattern, comparator speed and so on. (2) It is recommended for the threshold voltage Vref to set to the same rating of short circuit trip level (Vsc(ref): typ. 0.48V). (3) Select the external shunt resistance so that SC trip-level is less than specified value (=1.7 times of rating current). (4) To avoid malfunction, the wiring A, B, C should be as short as possible. (5) The point D at which the wiring to comparator is divided should be close to the terminal of shunt resistor. (6) OR output high level when protection works should be over 0.53V (=maximum Vsc(ref) rating). 9 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE Fig. 10 Package Outlines Dimensions in mm Short terminal type (-S/-ST) TERMINAL CODE 1-A 1-B 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 NC(VNC) NC(VP1) VUFB VVFB VWFB UP VP WP VP1 VNC *1 UN VN WN VN1 Fo CIN VNC *1 NC / VOT *2 NW NV NU W V U P NC Long terminal type (-AS/-AST) TERMINAL CODE 1-A 1-B 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 NC(VNC) NC(VP1) VUFB VVFB VWFB UP VP WP VP1 VNC *1 UN VN WN VN1 Fo CIN VNC *1 NC / VOT *2 NW NV NU W V U P NC 1) 9 & 16 pins (VNC) are connected inside DIPIPM, please connect either one to the control power supply GND outside and leave another one open. 2) No.17 is VOT for built-in temperature output function type (-S/-AS/-CS) and NC (No Connection) for built-in OT protection function type (-ST/-AST/-CST). QR Code is registered trademark of DENSO WAVE INCORPORATED in JAPAN and other countries. 10 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE Control side zigzag terminal type (-CS/-CST) TERMINAL CODE 1-A 1-B 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 NC(VNC) NC(VP1) VUFB VVFB VWFB UP VP WP VP1 VNC *1 UN VN WN VN1 Fo CIN VNC *1 NC / VOT *2 NW NV NU W V U P NC 1) 9 & 16 pins (VNC) are connected inside DIPIPM, please connect either one to the control power supply GND outside and leave another one open. 2) No.17 is VOT for built-in temperature output function type (-S/-AS/-CS) and NC (No Connection) for built-in OT protection function type (-ST/-AST/-CST). 11 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE Revision Record Rev. Date Page 1 11/11/2011 - Revised contents New 12 < Dual-In-Line Package Intelligent Power Module > PS219B4-S/-AS/-CS/-ST/-AST/-CST TRANSFER MOLDING TYPE INSULATED TYPE Keep safety first in your circuit designs! Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of non-flammable material or (iii) prevention against any malfunction or mishap. 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