LX1672-03CLQ-TR MICROSEMI [Microsemi Corporation], LX1672-03CLQ-TR Datasheet
LX1672-03CLQ-TR
Related parts for LX1672-03CLQ-TR
LX1672-03CLQ-TR Summary of contents
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... Frequency (kHz 300 500 600 NOTE: Available in Tape & Reel. Append the letters “TR” to the part number (i.e. LX1672-06CLQ-TR) Copyright © 2000 Rev. 1.0, 2005-08-10 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Multiple Output LoadSHARE™ PWM ® P ...
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... LO ) .......................................1A (500ns θ A 85°C/W MBIENT JA , θ 35°C/W A MBIENT JA x θ Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET HO2 1 28 LO2 2 27 PG2 3 26 LDGD 4 25 LDFB 5 24 LDDIS 6 ...
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... Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Multiple Output LoadSHARE™ PWM ® ESCRIPTION Microsemi Integrated Products Division LX1672 D S RODUCTION ATA HEET forces average current in 2 Page 3 ...
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... CX I Static and Dynamic 25° 0°C < T < 70°C A TSSOP Package MLPQ Package LX1672-03 Load = 3000pF LX1672-05 Load = 3000pF LX1672-06 Load = 3000pF Vos Common Mode Input Voltage = 1V UGBW V I Source = 2mA Sink = 10µA OL Input Offset Voltage < 20mV I 0 and 3 ...
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... OUT HDRV OUT 0.4V LDRV OUT DISX Pull down Resistance LDDIS Pull down Resistance Microsemi Integrated Products Division LX1672 D S RODUCTION ATA HEET ≤ ≤ T 70°C except where A LX1672 Min Typ Max 3.5 4.0 4.5 4.0 4.25 4.5 0 0.2 1.0 80 2.5 100 Units KΩ ...
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... S R TEMP SS1 SS2 DIS1 PWGD (MLP Only) Figure 1 – Block Diagram of PWM Phase 1 LDGD V REF LDFB +5V LDDIS Figure 2 – LDO Controller Block Diagram Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET I SET +12V VC1 HO1 ...
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... SET I RESET PWM Hiccup Ramp UVLO UVLO Oscillator S FAULT TEMP SS1 SS2 DIS 2 Microsemi Integrated Products Division LX1672 D S RODUCTION ATA HEET I SET +5V Vin VC2 out 2 HO2 L2 ESR C LO2 OUT PG2 +5V VCCL 16V +5V 16V VCC 5 ...
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... +12V HO2 VC2 LO2 VC1 PG2 HO1 LDGD LO1 LDFB PG1 LDDIS VCCL +5V DGND VCC AGND VS1 CS1 DIS2 SS2 EO1 RF2 FB1 FB2 SS1 EO2 DIS1 + CS2 VS2 Microsemi Integrated Products Division LX1672 D S ATA HEET + 1.5VDC +3. Page 8 ...
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... HO2 VC2 LO2 VC1 PG2 HO1 LDGD LO1 LDFB PG1 LDDIS VCCL +5V DGND VCC AGND VS1 CS1 DIS2 SS2 EO1 RF2 FB1 FB2 SS1 EO2 DIS1 CS2 VS2 Microsemi Integrated Products Division LX1672 D S ATA HEET + 2.8VDC + 1.40VDC Page 9 ...
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... This will force the current in the phase 2 inductor to follow and be equal to the current in the phase 1 inductor. There are four methods that can be used to implement the LoadSHARE feature of the LX1672 in the Bi-Phase mode of operation. Microsemi Integrated Products Division ...
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... Phase 2 to increase to produce the added offset at V2. The high DC gain of the error amplifier will force LPF2 to always be equal to LPF1. determine the value of the resistor divider necessary to satisfy this example. VOUT 1.5V @ 12A 18W Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET SHARE ( ...
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... Phase 2 Error Am p LPF1 PW M Input 4700pF - Generator 62k V 1 × K 100 then TBD 5.814 − Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET + ESR L1 1.5V V1 10m Ω 4.67A +46.7m V Phase 1 - Offset Voltage + 1.5V @ 12A ESR L2 10m Ω V2 1.5V +73.3m V 7.33A Phase 2 +3 ...
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... Offset Amp Vos Rin - - Rf Phase 2 PWM Error Amp Input RF2 - FB2 62k Rb 1M Figure 9 –LoadSHARE™ Using Proportional Control Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET The gain of the offset + ESR L1 1.5V 10mΩ 4.67A V 1 +46.7mV Phase 1 - Offset ...
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... V OUT = + Phase 2 current Phase 2 current is 2.32A greater than Phase 1. Input bias current also contributes to imbalance. Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET SHARE™ OAD ERIES ESISTOR ETHOD mismatch, and voltage differences across the DS(On) ESR L1 ...
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... The CDE Polymer AL-EL (ESRE) filter series provides excellent ESR performance at a reasonable cost. Beware of off- brand, very low-cost filter capacitors, which have been shown to degrade in both ESR and general electrolytic characteristics over time. D × Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET ( ) × + < ...
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... Short circuit protection still exists due to the narrow pulse width even though the magnitude of the current pulses will be higher than the calculated value. If OCP is not desired connect both VS X and VCC. Do not leave them floating. Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET ...
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... The LX1672 can supply both voltages by using two of the three PWM phases. Since the currents for V are quite often several amps, ( common) a switching regulator is a logical choice ...
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... LDO off until this capacitor, being charge by the 100K pull The internal operating down resistor, goes through the low input threshold level. This will Microsemi Integrated Products Division LX1672 D S RODUCTION ATA HEET resistor value is 1k ohm for the current ...
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... *LC Dim Microsemi Integrated Products Division LX1672 RODUCTION ATA HEET M I ILLIMETERS NCHES MIN MAX MIN MAX 0.85 0.95 0.033 0.037 0.19 0.30 0.007 0.012 0.09 0.20 0.003 0.008 9.60 9.80 0.378 0.390 4.30 4.50 0.169 ...
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... Copyright © 2000 Rev. 1.0, 2005-08-10 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Multiple Output LoadSHARE™ PWM ® P RODUCTION Microsemi Integrated Products Division LX1672 D S ATA HEET Page 20 ...