L6390 High-voltage high and low side driver Features High voltage rail up to 600 V dV/dt immunity 50 V/nsec in full temperature range Driver current capability: - 290 mA source, - 430 mA sink SO-16 DIP-16 Switching times 75/35 nsec rise/fall with 1 nF load 3.3 V, 5 V TTL/CMOS inputs with hysteresis Description Integrated bootstrap diode Operational amplifier for advanced current sensing Comparator for fault protections The L6390 is a high-voltage device manufactured with the BCD "OFF-LINE" technology. It is a single chip half-bridge gate driver for N-channel power MOSFET or IGBT. Smart shut down function Adjustable dead-time Interlocking function Compact and simplified layout Bill of material reduction Effective fault protection Flexible, easy and fast design Applications Motor driver for home appliances, factory automation, industrial drives. HID ballasts, power supply units. Table 1. The high side (floating) section is designed to stand a voltage rail up to 600 V. The logic inputs are CMOS/TTL compatible down to 3.3 V for easy interfacing microcontroller/DSP. The IC embeds an operational amplifier suitable for advanced current sensing in applications such as field oriented motor control. An integrated comparator is available for protections against over-current, over-temperature, etc. Device summary Order codes Package Packaging L6390 DIP-16 Tube L6390D SO-16 Tube L6390D013TR SO-16 Tape and reel February 2009 Rev 4 1/22 www.st.com 22 Contents L6390 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 4.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.3 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.1 AC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.2 DC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 Waveforms definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 Smart shut down function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8 Typical application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 9 Bootstrap driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 9.1 CBOOT selection and charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 10 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2/22 L6390 1 Block diagram Block diagram Figure 1. Block diagram BOOTSTRAP DRIVER VCC 4 16 FLOATING STRUCTURE from LVG UV DETECTION UV DETECTION HVG DRIVER 3 S LEVEL SHIFTER HIN 15 R HVG LOGIC 5V SHOOT THROUGH PREVENTION LIN BOOT 14 OUT 1 VCC LVG DRIVER LVG SD/OD GND 2 8 11 SD LATCH 5V SMART SD COMPARATOR 10 + CP+ + VREF DT OPOUT 5 DEAD VCC TIME 7 OPAMP + 9 - OP+ OP- 6 3/22 Pin connection 2 L6390 Pin connection Figure 2. Table 2. Pin connection (top view) LIN 1 16 BOOT SD/OD 2 15 HVG HIN 3 14 OUT VCC 4 13 NC DT 5 12 NC OP- 6 11 LVG OPOUT 7 10 CP+ GND 8 9 OP+ Pin description Pin n # Pin name Type 1 LIN I 2 SD/OD (1) I/O 3 HIN I High side driver logic input (active high) 4 VCC P Lower section supply voltage 5 DT I Dead time setting 6 OP- I Opamp inverting input 7 OPOUT O Opamp output 8 GND P Ground 9 OP+ I Opamp non inverting input 10 CP+ I Comparator input O Low side driver output 11 LVG (1) 12, 13 NC 14 OUT (1) 15 HVG 16 BOOT Function Low side driver logic input (active low) Shut down logic input (active low)/open drain (comparator output) Not connected P High side (Floating) common voltage O High side driver output P Bootstrap supply voltage 1. The circuit provides less than 1 V on the LVG and HVG pins (@ Isink = 10 mA), with VCC > 3 V. This allows omitting the "bleeder" resistor connected between the gate and the source of the external MOSFET normally used to hold the pin low; the gate driver assures low impedance also in SD condition. 4/22 L6390 3 Truth table Truth table Table 3. Truth table Input Note: Output SD LIN HIN LVG HVG L X X L L H H L L L H L H L L H L L H L H H H L H X: don't care 5/22 Electrical data L6390 4 Electrical data 4.1 Absolute maximum ratings Table 4. Absolute maximum rating Value Symbol Parameter Unit Min Max Vcc Supply voltage - 0.3 21 V Vout Output voltage Vboot - 21 Vboot + 0.3 V Vboot Bootstrap voltage - 0.3 620 V Vhvg High side gate output voltage Vout - 0.3 Vboot + 0.3 V Vlvg Low side gate output voltage - 0.3 Vcc + 0.3 V Vop+ OPAMP non-inverting input - 0.3 Vcc + 0.3 V Vop- OPAMP inverting input - 0.3 Vcc + 0.3 V Vcp+ Comparator input voltage - 0.3 Vcc + 0.3 V Vi Logic input voltage - 0.3 15 V Vod Open drain voltage - 0.3 15 V Allowed output slew rate 50 V/ns Ptot Total power dissipation (TA = 25 C) 800 mW TJ Junction temperature 150 C Tstg Storage temperature 150 C dVout/dt -50 Note: ESD immunity for pins 14, 15 and 16 is guaranteed up to 1 kV (human body model) 4.2 Thermal data Table 5. Symbol Rth(JA) 6/22 Thermal data Parameter Thermal resistance junction to ambient SO-16 DIP-16 Unit 155 100 C/W L6390 4.3 Electrical data Recommended operating conditions Table 6. Recommended operating conditions Symbol Pin Vcc 4 VBO (1) Vout 16-14 14 Parameter Test condition Min Max Unit Supply voltage 12.5 20 V Floating supply voltage 12.4 20 V 580 V 800 kHz 125 C DC output voltage fsw Switching frequency TJ Junction temperature -9 (2) HVG, LVG load CL = 1 nF -40 1. VBO = Vboot - Vout 2. LVG off. Vcc = 12.5 V Logic is operational if Vboot > 5 V Refer to AN2738 for more details 7/22 Electrical characteristics L6390 5 Electrical characteristics 5.1 AC operation Table 7. AC operation electrical characteristics (VCC = 15 V; TJ = +25 C) Symbol Pin Parameter Test condition toff High/low side driver turn-on 1 vs 11 propagation delay 3 vs 15 High/low side driver turn-off propagation delay tsd 2 vs 11, 15 ton Shut down to high/low side driver propagation delay tisd Comparator triggering to high/low side driver turn-off propagation delay MT Delay matching, HS and LS turn-on/off DT 5 MDT tr tf Dead time setting range Matching dead time (1) (2) Vout = 0 V Vboot = Vcc CL = 1 nF Vi = 0 to 3.3 V See Figure 3. Measured applying a voltage step from 0 V to 3.3 V to pin CP+. Typ Max Unit 125 200 ns 125 200 ns 125 200 ns 200 250 ns 30 ns RDT = 0, CL = 1 nF, CDT = 100 nF 0.1 0.18 0.25 s RDT = 37 k, CL = 1 nF, CDT = 100 nF 0.48 0.6 0.72 s RDT = 136 k, CL = 1 nF, CDT = 100 nF 1.35 1.6 1.85 s RDT = 260 k, CL = 1 nF, CDT = 100 nF 2.6 3.0 3.4 s RDT = 0, CL = 1 nF, CDT = 100 nF 80 ns RDT = 37 k, CL = 1 nF, CDT = 100 nF 120 ns RDT = 136 k, CL = 1 nF, CDT = 100 nF 250 ns RDT = 260 k, CL = 1 nF, CDT = 100 nF 400 ns Rise time CL = 1 nF 75 120 ns Fall time CL = 1 nF 35 70 ns 11, 15 1. See Figure 4 on page 9 2. MDT = | DTLH - DTHL | see Figure 5 on page 13 8/22 Min L6390 Electrical characteristics Figure 3. Timing LIN 50% 50% tr tf 90% LVG 90% 10% 10% ton HIN toff 50% 50% tr tf 90% HVG 90% 10% 10% ton toff 50% SD tf 90% LVG/HVG 10% tsd Figure 4. Typical dead time vs. DT resistor value $SSUR[LPDWHGIRUPXODIRU 5GWFDOFXODWLRQ W\S '7 XV 5GW>N@ A'7>V@ 5GW N2KP 9/22 Electrical characteristics L6390 5.2 DC operation Table 8. DC operation electrical characteristics (VCC = 15 V; TJ = + 25 C) Symbol Pin Parameter Test condition Min Typ Max Unit Vcc UV hysteresis 1200 1500 1800 mV Vcc_thON Vcc UV turn ON threshold 11.5 12 12.5 V Vcc_thOFF Vcc UV turn OFF threshold 10 10.5 11 V Undervoltage quiescent supply current Vcc = 10 V SD = 5 V; LIN = 5 V; HIN = GND; RDT = 0 ; CP+=OP+=GND; OP-=5 V 120 150 A Iqcc Quiescent current Vcc = 15 V SD = 5 V; LIN = 5 V; HIN = GND; RDT = 0 ; CP+=OP+=GND; OP-=5 V 720 1000 A Vref Internal reference voltage 500 540 580 mV VBO UV hysteresis 1200 1500 1800 mV VBO_thON VBO UV turn ON threshold 10.6 11.5 12.4 V VBO_thOFF VBO UV turn OFF threshold 9.1 10 10.9 V VBO = 9 V SD = 5 V; LIN and Undervoltage VBO quiescent HIN = 5 V; current RDT = 0 ; CP+=OP+=GND; OP-=5 V 70 110 A VBO = 15 V SD = 5 V; LIN and HIN = 5 V; RDT = 0 ; CP+=OP+=GND; OP-=5 V 150 210 A 10 A Low supply voltage section Vcc_hys Iqccu 4 Bootstrapped supply voltage section VBO_hys IQBOU 16 (1) VBO quiescent current IQBO High voltage leakage current Vhvg = Vout = Vboot = 600 V ILK Bootstrap driver on resistance (2) RDS(on) LVG ON 120 Driving buffers section Iso Isi 10/22 11, 15 High/low side source short circuit current VIN = Vih (tp < 10 s) 200 290 mA High/low side sink short circuit current VIN = Vil (tp < 10 s) 250 430 mA L6390 Electrical characteristics Table 8. DC operation electrical characteristics (VCC = 15 V; TJ = + 25 C) (continued) Symbol Pin Parameter Test condition Min Typ Max Unit 0.8 V Logic inputs Vil Low logic level voltage 1, 2, 3 Vih High logic level voltage Single input voltage LIN and HIN connected together and floating HIN logic "1" input bias current HIN = 15 V IHINl HIN logic "0" input bias current HIN = 0 V ILINl LIN logic "0" input bias current LIN = 0 V ILINh LIN logic "1" input bias current LIN = 15 V ISDh SD logic "1" input bias current SD = 15 V SD logic "0" input bias current SD = 0 V Vil_S 1, 3 2.25 IHINh 110 V 175 0.8 V 260 A 1 A 20 A 1 A 100 A 1 A 3 3 6 1 10 40 2 ISDl 1. VBO = Vboot - Vout 2. RDSON is tested in the following way: RDSON = [(VCC - VCBOOT1) - (VCC - VCBOOT2)] / [I1(VCC,VCBOOT1) - I2(VCC,VCBOOT2)] where I1 is pin 16 current when VCBOOT = VCBOOT1, I2 when VCBOOT = VCBOOT2. 11/22 Electrical characteristics Table 9. Symbol OPAMP characteristics (VCC = 15 V, TJ = +25 C) Pin Parameter Input offset voltage Vio Iio Iib L6390 Test condition Min Input bias current (1) Max Unit 6 mV 4 40 nA 100 200 nA Vic = 0 V, Vo = 7.5 V Input offset current 6, 9 Typ Vic = 0 V, Vo = 7.5 V Vicm Input common mode voltage range VOL Low level output voltage RL = 10 k to VCC VOH High level output voltage RL = 10 k to GND 14 14.7 V Source, Vid = +1; Vo = 0 V 16 30 mA Sink, Vid = -1; Vo = VCC 50 80 mA Slew rate Vi = 1 / 4 V; CL = 100 pF; unity gain 2.5 3.8 V/s GBWP Gain bandwidth product Vo = 7.5 V 8 12 MHz Avd Large signal voltage gain RL = 2 k 70 85 dB SVR Supply voltage rejection ratio vs. VCC 60 75 dB Common mode rejection ratio 55 70 dB 7 Io Output short circuit current SR CMRR 0 V 75 150 mV 1. The direction of input current is out of the IC. Table 10. Sense comparator characteristics (VCC = 15 V, TJ = +25 C) Symbol Pin Iib 10 Input bias current Vol 2 td_comp SR 12/22 2 Parameter Test conditions Min Typ Max Unit VCP+ = 1 V 1 A Open drain low level output voltage Iod = - 3 mA 0.5 V Comparator delay SD/OD pulled to 5 V through 100 k resistor 90 130 ns Slew rate CL = 180 pF; Rpu = 5 k 60 V/sec L6390 Waveforms definitions Figure 5. Dead time and interlocking waveforms definitions G HIN INTE RLO CKIN CONTROL SIGNAL EDGES OVERLAPPED: INTERLOCKING + DEAD TIME RLO CKIN G LIN INTE 6 Waveforms definitions LVG DTHL DTLH HVG gate driver outputs OFF (HALF-BRIDGE TRI-STATE) gate driver outputs OFF (HALF-BRIDGE TRI-STATE) LIN CONTROL SIGNALS EDGES SYNCHRONOUS (*): DEAD TIME HIN LVG DTLH DTHL HVG gate driver outputs OFF (HALF-BRIDGE TRI-STATE) gate driver outputs OFF (HALF-BRIDGE TRI-STATE) LIN CONTROL SIGNALS EDGES NOT OVERLAPPED, BUT INSIDE THE DEAD TIME: DEAD TIME HIN LVG DTLH DTHL HVG gate driver outputs OFF (HALF-BRIDGE TRI-STATE) gate driver outputs OFF (HALF-BRIDGE TRI-STATE) LIN CONTROL SIGNALS EDGES NOT OVERLAPPED, OUTSIDE THE DEAD TIME: DIRECT DRIVING HIN LVG DTLH DTHL HVG gate driver outputs OFF (HALF-BRIDGE TRI-STATE) gate driver outputs OFF (HALF-BRIDGE TRI-STATE) (*) HIN and LIN can be connected togheter and driven by just one control signal 13/22 Smart shut down function 7 L6390 Smart shut down function L6390 integrates a comparator committed to the fault sensing function. The comparator has an internal voltage reference Vref connected to the inverting input, while the non-inverting input is available on pin 10. The comparator input can be connected to an external shunt resistor in order to implement a simple over-current detection function. The output signal of the comparator is fed to an integrated MOSFET with the open drain output available on pin 2, shared with the SD input. When the comparator triggers, the device is set in shut down state and both its outputs are set to low level leaving the half-bridge in tri-state. Figure 6. Smart shut down timing waveforms comp Vref CP+ PROTECTION HIN/LIN HVG/LVG SD/OD upper threshold lower threshold 1 2 open drain gate (internal) real disable time Fast shut down: the driver outputs are set in SD state immediately after the comparator triggering even if the SD signal has not yet reach the lower input threshold TIME CONSTANTS 1 = (RON_OD // RSD) CSD 2 = RSD SHUT DOWN CIRCUIT VBIAS RSD FROM/TO CONTROLLER SD/OD CSD 14/22 RON_OD SMART SD LOGIC CSD L6390 Smart shut down function In common over-current protection architectures the comparator output is usually connected to the SD input and an RC network is connected to this SD/OD line in order to provide a mono-stable circuit, which implements a protection time that follows the fault condition. Differently from the common fault detection systems, L6390 Smart shut down architecture allows to immediately turn-off the outputs gate driver in case of fault, by minimizing the propagation delay between the fault detection event and the actual outputs switch-off. In fact the time delay between the fault and the outputs turn off is no more dependent on the RC value of the external network connected to the pin. In the smart shut down circuitry, the fault signal has a preferential path which directly switch off the outputs after the comparator triggering. At the same time the internal logic turns on the open drain output and holds it on until the SD voltage goes below the SD logic input lower threshold. The Smart shut down system provides the possibility to increase the time constant of the external RC network (that is the disable time after the fault event) up to very large values without increasing the delay time of the protection. Any external signal provided to the SD pin is not latched and can be used as control signal in order to perform, for instance, PWM chopping through this pin. In fact when a PWM signal is applied to the SD input and the logic inputs of the gate driver are stable, the outputs switch from the low level to the state defined by the logic inputs and vice versa. 15/22 Typical application diagram 8 L6390 Typical application diagram Figure 7. Application diagram BOOTSTRAP DRIVER VCC VCC 4 16 FLOATING STRUCTURE from LVG UV DETECTION UV DETECTION FROM CONTROLLER HIN H.V. 3 S LEVEL SHIFTER LIN 14 OUT TO LOAD 1 VBIAS GND HVG LOGIC VCC SD/OD 15 R SHOOT THROUGH PREVENTION FROM CONTROLLER 2 8 LVG 11 SD LATCH SMART SD LVG DRIVER 5V COMPARATOR 10 + CP+ + VBIAS VREF DT 5 DEAD VCC TIME OPOUT 7 OPAMP + 9 16/22 OP+ OP- TO ADC Cboot HVG DRIVER 5V FROM/TO CONTROLLER BOOT + 6 L6390 9 Bootstrap driver Bootstrap driver A bootstrap circuitry is needed to supply the high voltage section. This function is normally accomplished by a high voltage fast recovery diode (Figure 8.a). In the L6390 a patented integrated structure replaces the external diode. It is realized by a high voltage DMOS, driven synchronously with the low side driver (LVG), with diode in series, as shown in Figure 8.b. An internal charge pump (Figure 8.b) provides the DMOS driving voltage. 9.1 CBOOT selection and charging To choose the proper CBOOT value the external MOS can be seen as an equivalent capacitor. This capacitor CEXT is related to the MOS total gate charge: Equation 1 Q gate C EXT = ------------V gate The ratio between the capacitors CEXT and CBOOT is proportional to the cyclical voltage loss. It has to be: Equation 2 CBOOT >>> CEXT e.g.: if Qgate is 30 nC and Vgate is 10 V, CEXT is 3 nF. With CBOOT = 100 nF the drop would be 300 mV. If HVG has to be supplied for a long time, the CBOOT selection has to take into account also the leakage and quiescent losses. e.g.: HVG steady state consumption is lower than 200 A, so if HVG TON is 5 ms, CBOOT has to supply 1 C to CEXT. This charge on a 1 F capacitor means a voltage drop of 1V. The internal bootstrap driver gives a great advantage: the external fast recovery diode can be avoided (it usually has great leakage current). This structure can work only if VOUT is close to GND (or lower) and in the meanwhile the LVG is on. The charging time (Tcharge) of the CBOOT is the time in which both conditions are fulfilled and it has to be long enough to charge the capacitor. The bootstrap driver introduces a voltage drop due to the DMOS RDSon (typical value: 120 ). At low frequency this drop can be neglected. Anyway increasing the frequency it must be taken in to account. The following equation is useful to compute the drop on the bootstrap DMOS: Equation 3 17/22 Bootstrap driver L6390 Q gate V drop = I ch arg e R dson V drop = ------------------ R dson T ch arg e where Qgate is the gate charge of the external power MOS, Rdson is the on resistance of the bootstrap DMOS and Tcharge is the charging time of the bootstrap capacitor. For example: using a power MOS with a total gate charge of 30nC the drop on the bootstrap DMOS is about 1 V, if the Tcharge is 5 s. In fact: Equation 4 30nC V drop = --------------- 120 0.7V 5s Vdrop has to be taken into account when the voltage drop on CBOOT is calculated: if this drop is too high, or the circuit topology doesn't allow a sufficient charging time, an external diode can be used. Figure 8. Bootstrap driver DBOOT VCC BOOT BOOT VCC H.V. H.V. HVG HVG CBOOT OUT TO LOAD TO LOAD LVG a 18/22 CBOOT OUT LVG b D99IN1067 L6390 10 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK(R) is an ST trademark. Figure 9. DIP-16 mechanical data and package dimensions mm DIM. MIN. a1 0.51 B 0.77 TYP. inch MAX. MIN. TYP. MAX. 0.020 1.65 0.030 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 17.78 0.700 F 7.1 0.280 I 5.1 0.201 L OUTLINE AND MECHANICAL DATA 3.3 0.130 DIP16 Z 1.27 0.050 19/22 Package mechanical data L6390 Figure 10. SO-16 narrow mechanical data and package dimensions mm inch DIM. MIN. TYP. A a1 b1 REF. 0.35 MIN. A c1 b 0.35 b1 0.19 9.8 5.8 c1 e D 9.8 1.27 E 5.8 8.89 3.8 e3 G F 4.60 3.8 G 4.6 0.4 M M S S 0.010 0.004 0.008 0.020 1.65 0.013 45 0.46(typ.) 10 0.25 0.064 0.018 0.007 0.010 0.386 16-LEAD SMALL OUTLINE PACKAGE 0.394 0.019 0.244 10 0.385 0.050 0.393 6.2 0.228 0.244 1.27 0.350 Weight: not available 0.050 8.894.0 0.5 PACKAGE AND PACKING INFORMATION 0.068 0.007 0.2 OUTLINE AND MECHANICAL DATA 0.009 6.2 45 0.228 (typ.) F(1) L TYP. 0.018 MAX. 0.5 E L inch 0.063 TYP. MAX. MIN. 0.46 0.014 0.5 C e 0.069 0.25 a2 MAX. 0.25 0.004 DIMENSIONS mm1.6 0.1 C e3 TYP. 1.75 0.19 a1 D(1) MIN. 1.75 0.1 a2 b MAX. 0.150 0.149 5.30 4.0 0.181 5.3 1.27 0.181 0.150 1.27 0.019 0.620.62 0.350 0.157 0.157 0.208 0.208 0.050 0.050 0.024 0.024 8 (max.) 8 (max.) SO-16 SO16 (Narrow) (1) "D" and "F" do not include mold flash or protrusions - Mold flash or protrusions shall not exceed 0.15mm (.006inc.) 0016020 D 20/22 L6390 11 Revision history Revision history Table 11. Document revision history Date Revision Changes 29-Feb-2008 1 First release 09-Jul-2008 2 Updated: Cover page, Table 2 on page 4, Table 3 on page 5, Section 4 on page 6, Section 5 on page 8, Section 9.1 on page 17 17-Sep-2008 3 Updated test condition values on Table 8 and Table 9 17-Feb-2009 4 Updated Table 7 on page 8, Table 8 on page 10, Table 9 on page 11 Added Table 4 on page 9 21/22 L6390 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. 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