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TPA2014D1_0806 Folha de dados(PDF) 6 Page - Texas Instruments |
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TPA2014D1_0806 Folha de dados(HTML) 6 Page - Texas Instruments |
6 / 27 page BOOST CONVERTER DC CHARACTERISTICS CLASS D AMPLIFIER DC CHARACTERISTICS AC CHARACTERISTICS TPA2014D1 SLAS559A – MAY 2008 – REVISED JUNE 2008 ............................................................................................................................................................... www.ti.com TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VCC Output voltage range 3 5.5 V VFB Feedback voltage 490 500 510 mV IOL Output current limit, Boost_max 750 mA RON_PB PMOS switch resistance 220 m Ω RON_NB NMOS resistance 170 m Ω No Load, 1.8 V < VDD < 5.2 V, Line regulation 3 mV/V VCC = 5.5 V VDD = 3.6 V, 0 < IL < 500 mA, Load regulation 30 mV/A VCC = 5.5 V IL Start up current limit, Boost 0.4×IBoost mA TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Vin = ±100 mV, VDD = 2.5 V, VCC = 3 V, RL = 8 Ω 0.5 2.2 CMR Input common mode range Vin = ±100 mV, VDD = 2.5 V, VCC = 3.6 V, RL = 8 Ω 0.5 2.8 V Vin = ±100 mV, VDD = 3.6 V, VCC = 5.5 V, RL = 8 Ω 0.5 4.7 RL = 8 Ω, Vicm = 0.5 and Vicm = VCC – 0.8, differential CMRR Input common mode rejection –75 dB inputs shorted VCC = 3.6 V, Av = 2 V/V, IN+ = IN– = Vref, RL = 8 Ω 1 6 VCC= 3.6 V, Av = 6 V/V, IN+ = IN– = Vref, RL = 8 Ω 1 6 Output offset voltage VOO mV Class-D VCC= 3.6 V, Av = 10 V/V, IN+ = IN– = Vref, RL = 8 Ω 1 6 VCC = 5.5 V, Av = 2 V/V, IN+ = IN– = Vref, RL = 8 Ω 1 6 Gain = 2 V/V (6 dB) 32 Rin Input Impedance Gain = 6 V/V (15.5 dB) 15 k Ω Gain = 10 V/V (20 dB) 9.5 OUTP High-side FET On-state 0.36 series resistance RDS(on) OUTP Low-side FET On-state 0.36 series resistance IOUTx = –300 mA; VCC = 3.6 V Ω OUTN High-side FET On-state 0.36 series resistance RDS(on) OUTN Low-side FET On-state 0.36 series resistance Low Gain GAIN ≤ 0.35 V 1.8 2 2.2 V/V AV Mid Gain GAIN = 0.8 V 5.7 6 6.3 V/V High Gain GAIN ≥ 1.35 V 9.5 10 10.5 V/V TA = 25°C, VDD = 3.6V, RL = 8 Ω + 33 µH, L = 6.2 µH (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tSTART Start up time 2.5 V ≤ VDD ≤ 5.5 V, CIN ≤ 1 µF 7.5 ms THD+N = 1%, VCC = 5 V, VDD = 3.6 V, 85% Pout = 1.2 W, Cboost= 47µF η Efficiency THD+N = 1%, VCC = 5 V, VDD = 4.2 V, 87.5% Pout = 1.2 W Thermal Shutdown Threshold 150 °C 6 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): TPA2014D1 |
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