lx1684 Microsemi Corporation, lx1684 Datasheet
lx1684
Related parts for lx1684
lx1684 Summary of contents
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... Ohm Optional 12V only circuit T (° Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1684CD-TR) Copyright © 2000 Rev. 1.0c, 2005-03-08 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Voltage-Mode PWM Controller ® ...
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... θ ESCRIPTION Microsemi Integrated Products Division LX1684 RODUCTION ATA HEET N ...
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... V VC1 > 0.3V ; outputs low (disable) VCC SS Microsemi Integrated Products Division LX1684 D S RODUCTION ATA HEET ≤ ≤ T 70°C except where A LX1684 Min Typ Max 1.237 1.25 1.262 1.231 1.269 135 175 200 1. 300 380 420 1.0 50 ...
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... Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Voltage-Mode PWM Controller ® P RODUCTION SET UVLO Ramp UVLO O scillator Microsemi Integrated Products Division LX1684 D S ATA HEET I SET V (+12V) +17. ...
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... The internal oscillator and ramp generator frequency is fixed at 175kHz. The devices have internal compensation, so that no external compensation is required. POWER UP AND INITIALIZATION At power up, the LX1684 monitors the supply voltage to both the +5V and the V pins (there is no special requirement for the C1 sequence of the two supplies) ...
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... The required inductor current for the output capacitor to follow the SS-pin voltage equals the required capacitor current plus the load current. The soft-start capacitor should be selected so that the overall inductor current does not exceed its maximum. Microsemi Integrated Products Division LX1684 RODUCTION ATA HEET ...
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... Rev. 1.0c, 2005-03-08 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Voltage-Mode PWM Controller ® OUTPUT ENABLE The LX1684 FET driver outputs are driven to ground by pulling the soft-start pin below 0.3V − ...
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... The use of a dual Schottky diode in a single TO-220 package (e.g. the MBR2535) helps improve thermal dissipation. Boost Operation The LX1684 needs a secondary supply voltage (V sufficient drive to the upper MOSFET. The top FET must be a logic level power MOSFET such as SUB45N03-13L ...
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... CSP GND VC1 6 9 PGND BDR TDR – Figure 4 3.3V to 1.25V with Charge Pump. Microsemi Integrated Products Division LX1684 D S RODUCTION ATA HEET 2x 820µF, 16V Q1 L1 VOUT 10µ powder 4x iron Toroid 1500 MBR2545 µF 3.3V 10% C1 0.1µF 2x 150µ ...
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... DIV 2V / DIV OUTPUT VOLTAGE VS. TEMPERATURE 100mV / DIV Microsemi Integrated Products Division LX1684 RODUCTION ATA HEET OUTPUT VOLTAGE VS. LOAD Output Current (A) OUTPUT STARTUP V = 3.3V OUT 1ms / DIV I = 10A OUT 10µ ...
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... MIN MAX MIN A 8.54 8.74 0.336 B 3.81 3.94 0.150 C 1.35 1.75 0.053 D 0.33 0.51 0.013 F 0.77 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.007 K 0.10 0.25 0.004 L 4.82 5.21 0.189 5.79 6.20 0.228 *LC 0.10 *Lead Coplanarity Microsemi Integrated Products Division LX1684 D S RODUCTION ATA HEET L J MAX 0.344 0.155 0.069 0.020 0.030 0.010 0.010 0.205 8 0.244 0.004 Page 11 ...
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... Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © 2000 Rev. 1.0c, 2005-03-08 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Voltage-Mode PWM Controller ® P RODUCTION Microsemi Integrated Products Division LX1684 D S ATA HEET Page 12 ...