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PSS35S92E6-AG Datasheet(PDF) 9 Page - Mitsubishi Electric Semiconductor |
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PSS35S92E6-AG Datasheet(HTML) 9 Page - Mitsubishi Electric Semiconductor |
9 / 12 page < Dual-In-Line Package Intelligent Power Module > PSS35S92F6-AG, PSS35S92E6-AG TRANSFER MOLDING TYPE INSULATED TYPE Publication Date : December 2013 9 Fig. 7 MCU I/O Interface Circuit Fig. 8 Pattern Wiring Around the Shunt Resistor 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. (1) It is necessary to set the time constant RfCf of external comparator input so that IGBT stops within 2 μs 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 0.505V (=maximum Vsc(ref) rating). UP,VP,WP,UN,VN,WN Fo VNC(Logic) DIPIPM MCU 10k Ω 5V line 3.3k Ω(min) 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 Ω 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 Ω ( 5kΩ or more) is recommended. Wiring Inductance should be less than 10nH. Inductance of a copper pattern with length=17mm, width=3mm is about 10nH. NU, NV, NW should be connected each other at near terminals. N1 VNC NU NV NW DIPIPM VNC GND wiring from VNC should be connected close to the terminal of shunt resistor. Shunt resistor DIPIPM NU NV NW N1 Low inductance shunt resistor like surface mounted (SMD) type is recommended. GND wiring from VNC should be connected close to the terminal of shunt resistor. Shunt resistors Each wiring Inductance should be less than 10nH. Inductance of a copper pattern with length=17mm, width=3mm is about 10nH. P V U W N-side IGBT P-side IGBT Drive circuit DIPIPM VNC NW Drive circuit CIN NV NU - Vref + Vref Vref Comparators (Open collector output type) External protection circuit Protection circuit Shunt resistors Rf Cf 5V B A C OR output D N1 - + - + |
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