SLA6845MZ-LF2171

SLA6845MZ High Voltage 3-Phase Motor Driver Features and Benefits ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ Description Built-in pre-drive IC IGBT power element CMOS compatible input (3.3 to 5 V) High-side gate driver using bootstrap circuit or floating power supply Integrated Fast Recovery Diode (FRD) as freewheeling diode for each IGBT Built-in protection circuit for controlling power supply voltage drop Built-in overtemperature detection circuit (TD) 3-shunt configuration Output of fault signal during operation of protection circuit Output current 3 A Small SIP (SLA 24-pin) The SLA6845MZ inverter power module (IPM) device provides a robust, highly-integrated solution for optimally controlling 3-phase motor power inverter systems and variable speed control systems used in energy-conserving designs to drive motors of residential and commercial appliances. These ICs take 230 VAC input voltage, and 3 A (continuous) output current. They can withstand voltages of up to 600 V (IGBT breakdown voltage). The SLA6840M power package includes an IC with all of the necessary power elements (six IGBTs), pre-driver ICs (two), and freewheeling diodes (six), needed to configure the main circuit of an inverter. This enables the main circuit of the inverter to be configured with fewer external components than traditional designs. Applications include residential white goods (home applications) and commercial appliance motor control: • Air conditioner fan • Refrigerator compressor • Dishwasher pump Package: Power SIP Leadform 2171 Leadform 2178 Leadform 2175 Not to scale Functional Block Diagram VB 1 VB 2 VB3 VBB 1 VCC1 VBB 2 UVLO HIN1 HIN2 HIN3 Input Logic UVLO UVLO UVLO High Side Level Shift Driver COM1 VCC2 VREG LIN1 LIN2 LIN3 7.5 V Reg. UVLO Input Logic COM2 FO Figure 1. Driver block diagram. SLA6845MZ-DS Overtemperature Detection U V W1 W2 Low Side Driver LS3 LS2 LS1 SLA6845MZ High Voltage 3-Phase Motor Driver Selection Guide Output Current Part Number Packing IGBT Breakdown Voltage, VCES(min) (V) IGBT Saturation Voltage, VCE(sat)(typ) (V) Continuous, IO(max) (A) Pulsed, IOP (max) (A) SLA6845MZ 18 pieces per tube 600 1.75 3 6 Absolute Maximum Ratings, valid at TA = 25°C Characteristic Symbol Main Supply Voltage VBB Main Supply Voltage (Peak) VBB(surge) Remarks Rating Unit Maximum voltage that can be applied between VBB and LSx continuously 450 V Maximum voltage allowed between VBB and LSx, including transient switching noise. If surge voltages reach this rating, the snubber circuit should be improved so the voltage does not exceed this level. 500 V IGBT Breakdown Voltage VCES 600 V Logic Supply Voltage VCC Between VCC and COM 20 V Bootstrap Voltage VBS Between VB and HS (U,V, and W phases) 20 V IO TC = 25°C 3 A Output Current, Pulsed IOP PW ≤ 100 μs Output Current for Regulator IREG Input Voltage VIN Allowable Power Dissipation PD Output Current, Continuous Thermal Resistance (Junction to Case) TC = 25°C, all elements operating 6 A 35 mA –0.5 to 7 V 32 W RθJC(I) All elements operating (IGBT) 3.8 °C/W RθJC(F) All elements operating (FRD) 4.2 °C/W Thermal Resistance (Junction to Ambient) RθJA 25 °C/W Case Operating Temperature TCOP All elements operating (IGBT and FRD) –20 to 100 °C Junction Temperature (IGBT) TJ 150 °C Storage Temperature Tstg –40 to 150 °C Max. Units Recommended Operating Conditions Characteristic Symbol Remarks Main Supply Voltage VBB Between VBB and LS, IBB ≤ 2 A Logic Supply Voltage VCC Between VCC and COM RS Min. Typ. – 300 450 V 13.5 – 16.5 V LS1, LS2, LS3 to COM2 0.3 – – Ω Dead Time tdead Between LS1, LS2, LS3 and COM 1.5 – – μs Overcurrent Protection (OCP) Response Time tOCP No built-in OCP. If OCP required, implement using an external circuit. Measure tOCP from overcurrent occurrence to shutdown command received on corresponding HINx or LINx terminal. – – 2.0 μs Snubber Capacitor CS Between VCC and COM. Use properly-rated film capacitor for voltage surge suppression. 0.01 – 0.1 μF Junction Temperature TJ – – 125 °C Shunt Resistor All performance characteristics given are typical values for circuit or system baseline design only and are at the nominal operating voltage and an ambient temperature, TA, of 25°C, unless otherwise stated. Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 2 SLA6845MZ High Voltage 3-Phase Motor Driver Typical Application Diagram DBOOT RBOOT 2 3 4 VB1 VB2 VB3 SLA6845MZ 11 10 5 VCC1 HO1 HVIC HS1 1 HO2 9 8 7 6 HS2 13 M HIN1 HIN2 HIN3 HO3 COM1 HS3 Cs 12 14 23 VCC2 LVIC Controller LO1 24 20 19 18 16 LIN1 LO2 17 LIN2 LIN3 LO3 VREG 15 CC 22 21 FO COM2 RS 15V NOTE: ▪ All of the input pins are connected to GND with internal pull-down resistors rated at 100 kΩ, however, an external pull-down resistor may be required to secure stable condition of the inputs if high impedance conditions are applied to them. ▪ The external electrolytic capacitors should be placed as close to the IC as possible, in order to avoid malfunctions from external noise interference. Put a ceramic capacitor in parallel with the electrolytic capacitor if further reduction of noise susceptibility is necessary. Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com 3 SLA6845MZ High Voltage 3-Phase Motor Driver ELECTRICAL CHARACTERISTICS, valid at TA=25°C, unless otherwise noted Characteristics Logic Supply Voltage Logic Supply Current Input Voltage Input Voltage Hysteresis Input Current Symbol Between VCC and COM FO Terminal Output Voltage Overtemperature Detection Activating and Releasing Temperature Units 16.5 V – 4 6 mA VCC = 15 V, output on – 2.0 2.5 V VIL VCC = 15 V, output off 1.0 1.5 – V – 0.5 – V VIhys VCC = 15 V IIH High side, VCC = 15 V, VIN = 5 V – 50 100 μA IIL Low side, VCC = 15 V, VIN = 0 V – – 2 μA 9.0 10.0 11.0 V 9.5 10.5 11.5 V – 0.5 – V VUVHhys VUVLL VUVLhys LS Negative Surge Max 15 VCC = 15 V, VIN = 5 V VUVLH Voltage2 Typ ICC VUVHL –VO for Output Voltage1 Min 13.5 VIH VUVHH Undervoltage Lockout Conditions VCC High side, between VB and U, V, or W High side, hysteresis Low side, between VCC and COM 10.0 11.0 12.0 V 10.5 11.5 12.5 V Low side, hysteresis – 0.5 – V –VO Between U, V, or W and COM –5 – – V VLS Between LS1, LS2, or LS3 and COM –5 – 5 V VFOL VCC = 15 V, IFO = –1 mA 0 – 1.0 V VFOH VCC = 15 V, IFO = –1.6 mA TTDH TTDL VCC = 15 V, no heatsink, IREG = 0 mA TTDhys 4.0 – 5.5 V 135 150 165 °C 105 120 135 °C – 30 – °C V Output Voltage for Regulator VREG IREG = 0 to 35 mA 6.75 7.5 8.25 IGBT Breakdown Voltage VCES VCC = 15 V, IC = 1 mA, VIN = 0 V 600 – – V IGBT Leakage Current ICES VCC = 15 V, VCE = 600 V, VIN = 0 V – – 1 mA IGBT Saturation Voltage VCE(sat) VCC = 15 V, IC = 3 A, VIN = 5 V – 1.75 2.1 V Diode Forward Voltage VF VCC = 15 V, IF = 3 A, VIN = 0 V – 1.65 2.0 V trr IF = 3 A, di / dt = 100 A/μs Diode Recovery Time Switching Time, High Side – 50 – ns tdH(on) – 315 – ns trH – 50 – ns tdH(off) – 375 – ns – 165 – ns – 325 – ns trL – 60 – ns tdL(off) – 400 – ns tfL – 165 – ns tfH tdL(on) Switching Time, Low Side 1Indicates 2Indicates VBB = 300 V, VCC = 15 V, IC = 3 A, 0 V ≤ VIN ≤ 5 V, inductive load normal operating range for the high-side driver IC. the allowable range assuming any transient surge