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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM3205TLX/NOPB датащи(PDF) 5 Page - Texas Instruments |
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LM3205TLX/NOPB датащи(HTML) 5 Page - Texas Instruments |
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5 / 28 page  LM3205 www.ti.com SNVS388E – JULY 2005 – REVISED APRIL 2013 SYSTEM CHARACTERISTICS The following spec table entries are specified by design providing the component values in the typical application circuit are used. These parameters are not specified by production testing. Min and Max limits apply over the full operating ambient temperature range ( −30°C ≤ TA ≤ 85°C) and over the VIN range = 2.7V to 5.5V, TA = 25°C, PVIN = VDD = EN = 3.6V, L = 3.3µH, DCR of L ≤ 100mΩ, CIN = 10µF, 0603, 6.3V (4.7µF||4.7µF, 0603, 6.3V can be used), COUT = 4.7µF, 0603, 6.3V for LM3205TL/LM3205SD unless otherwise noted. Symbol Parameter Conditions Min Typ Max Units TRESPONSE Time for VOUT to rise from 0.8V VIN = 4.2V, COUT = 4.7µF, L = 3.3µH, 20 30 µs to 3.6V RLOAD = 5.5Ω Time for VOUT to fall from 3.6V to VIN = 4.2V, COUT = 4.7µF, L = 3.3µH, 20 30 µs 0.8V RLOAD = 10Ω CCON VCON input capacitance VCON = 1V, 20 pF Test frequency = 100 kHz Linearity Linearity in control VIN = 3.9V -3 +3 % range 0.32V to 1.44V Monotonic in nature ICON Control pin input current -10 10 µA TON Turn on time EN = Low to High, VIN = 4.2V, VO = 3.6V, (time for output to reach 3.6V COUT = 4.7µF, IOUT ≤ 1mA 70 100 µs from Enable low to high transition) η Efficiency VIN = 3.6V, VOUT = 0.8V, IOUT = 90mA 83 % (L = 3.3µH, DCR ≤ 100mΩ) VIN = 4.2V, VOUT = 3.4V, IOUT = 400mA 96 % VOUT_ripple Ripple voltage, PWM mode VIN = 3V to 4.5V, VOUT = 0.8V, IOUT = 10 mVp-p 10mA to 400mA(1) Line_tr Line transient response VIN = 600mV perturbance, TRISE = TFALL = 10µs, VOUT = 0.8V, IOUT = 50 mVpk 100mA Load_tr Load transient response VIN = 3.1/3.6/4.5V, VOUT = 0.8V, transients 50 mVpk up to 100mA, TRISE = TFALL = 10µs PSRR VIN = 3.6V, VOUT = 0.8V, IOUT = sine wave perturbation 40 dB 100mA frequency = 10kHz, amplitude = 100mVp-p (1) Ripple voltage should measured at COUT electrode on good layout PC board and under condition using suggested inductors and capacitors. Copyright © 2005–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3205 |
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