lx1676 Microsemi Corporation, lx1676 Datasheet
lx1676
Related parts for lx1676
lx1676 Summary of contents
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... T (°C) J RoHS Compliant / Pb-free Transition DC: 0518 Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1676CLQ-TR) Copyright © 2000 Revision: 1.0, 4/12/2005 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® Mobile AMD Athlon™ VRM Controller maximizing regulator response ...
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... HO1 VS1 GND VIN LO1 ROSC PGN LO2 ENA VID4 VCCL VID3 I-MIN PGN3 VID2 VID1 VCC VID0 VC2 20 VS2 19 HO2 PW P ACKAGE (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish LX1676 Units Min Typ Max 4.5 5.5 V 5 5.5 V Page 2 ...
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... Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® Mobile AMD Athlon™ VRM Controller Description for phase 1. DS(ON) Microsemi Integrated Products Division LX1676 D S RODUCTION ATA HEET Page 3 ...
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... VIN = =1. 2mA EO2(MAX) EA2 -20uA EO2(MIN) EA2 UGBW Microsemi Integrated Products Division LX1676 RODUCTION ATA HEET ≤ ≤ T 70°C except where A LX1676 Min Typ Max 0 1. -100 100 60 70 0.8 2.5 4.0 0.15 0 0.99 1 1.01 65 ...
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... VCCL - PGN = 5.0 V, Load = 3300pf at I LOx <500nSec I ILIM1 t CSD(ILIM1) I ILIM3 t CSD(ILIM3 -3mA PWGD PWGD Microsemi Integrated Products Division LX1676 D S RODUCTION ATA HEET ≤ ≤ T 70°C except where A LX1676 Units Min Typ Max -6 6 0.98 1 1.02 60 180 4 MHz 4.8 4.9 0.1 0.2 4.8 4.9 0.1 0.2 1 1.5 ...
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... Shutdown 11111 Microsemi Integrated Products Division LX1676 D S RODUCTION ATA HEET ≤ ≤ T 70°C except where A LX1676 Units Min Typ Max 4.2 0.3 5.5 0.3 2.35 0.800 1 ≤ DACOUT 1 1.5 0.5 1.3 2 0.3 V (V) OUT 1.275 1.250 1 ...
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... S S UVLO IMAX + _ 35mV + offset VCCL _ 35mV IMIN _ offset + ENA ILIM PGN3 I-Min VS3 I-Max Microsemi Integrated Products Division LX1676 D S RODUCTION ATA HEET VCCL I-MAX VC1 Q S HO1 R VS1 I-MIN LO1 I-MIN PGN Q R VC2 S HO2 I-MAX VS2 LO2 ...
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... Q8 IRF7811W C17 0.22µF +5VP Q9 CR5 IRF7822 UPS5817 +5VP C18 C103 10µF 47µF 25V 6.3V Figure 2– Typical VRM Application Microsemi Integrated Products Division LX1676 RODUCTION ATA HEET CR1 SK32 L3 70µH Q4 IRF7811W VBAT C19 C20 C21 C105 10µF 10µF 10µF 10µF ...
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... URRENT ROTECTION There are two separate current limit circuits in the LX1676. One looks at the phase 1 lower MOSFET drain current and the second looks at the phase 3 upper MOSFET drain current. Both circuits have a 400 nS delay before a current limit command is issued to the current limit latch, once set the current limit latch will hold all three phases off until it is reset ...
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... DACOUT pin and the PWGD output in high. PWM F REQUENCY An external resistor sets the PWM frequency from the ROSC pin to ground. The equation for ROSC is: where ROSC is in KΩ Hz, K=105e-12 Both Microsemi Integrated Products Division LX1676 RODUCTION ATA HEET 1 ROSC = ...
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... With the LoadSHARE imbalance the phases so that one phase will supply more current than the other under unique situations. The LX1676 will normally be used with the same supply voltages on phase 1 and 2 PWM inputs and will have equal currents in both phases ...
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... Under normal operation the Transient Correction phase is only active for a very brief time during high di/dt loads on the output. DACOUT Differential Feedback From Output 35mV 35mV Figure 6 – Phase 3 Transient Correction Loop Microsemi Integrated Products Division LX1676 D S ATA HEET low VC3 + - I-Max I-Max Vout Comparator ...
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... The D × capacitor should be rated to handle the RMS input current s f requirement. The RMS input current is: Where I The maximum RMS value of 0.25I 25% or 75%. Microsemi Integrated Products Division LX1676 RODUCTION ATA HEET A capacitor that satisfies the ESR ( ) ESR I ∆ ...
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... The DAC inputs are the Voltage Identification (VID) 0-4 lines, the VID table lists the available output voltages for the corresponding VID codes. There are no external resistor dividers to program output voltage and only the steps listed are available. Microsemi Integrated Products Division LX1676 RODUCTION ATA HEET ...
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... L e Note: 1. Dimensions do not include mold flash or protrusions; these shall not exceed 0.155mm(.006”) on any side. A dimension shall not include solder coverage Microsemi Integrated Products Division LX1676 D S RODUCTION ATA HEET M I ILLIMETERS NCHES MIN MAX MIN MAX ...
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... Copyright © 2000 Revision: 1.0, 4/12/2005 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® Mobile AMD Athlon™ VRM Controller P RODUCTION Microsemi Integrated Products Division LX1676 D S ATA HEET Page 16 ...