TA0105A Tripath Technology Inc., TA0105A Datasheet
TA0105A
Related parts for TA0105A
TA0105A Summary of contents
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... Class-T amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers. The typical application for the TA0105A is direct drive (no output transformer) in 70V and 100V constant voltage amplifiers used for public address systems. The feedback and voltage range of the TA0105A can be configured externally unlike previous Tripath modules such as TA0104A ...
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... Electrical Characteristics for guaranteed specific performance limits (Note 1) PARAMETER PARAMETER Value UNITS +/-200 -0.3 to (V5+0.3) V VNN+18 V 0º to 70º C 150º C -40º to 150º C 2000 V 200 V MIN. TYP. MAX. UNITS +/-125 +/-148 +/-185 V 4.5 5 5.5 V 10.8 12 13.2 V TA0105A – RW/ Rev. 2.2/05.05 ...
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... A 1.5 1.6 A 2.1 2.22 A 2 0.5 V 2.5 V 0.97 1.09 V 227 250 V 216 V 111 125 V 101 118 V -221 -250 V -215 V -110 -125 V -98 -118 V 167 185 V 159 -166 -185 V -161 V -82 -95 V -73 -85 V TA0105A – RW/ Rev. 2.2/05.05 ...
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... Rin = 34.8k:, See Application / Test Circuit - 10W/Channel 25: OUT L See Application / Test Circuit A-Weighted, input shorted, DC offset nulled to zero TYP. MAX. UNITS 300 W 400 W 300 W 400 W 0.06 0.25 % 0.2 1.0 % 0.06 0.25 % 0.2 1.0 % 0.02 % 103 dB 100 40.5 V 700 TA0105A – RW/ Rev. 2.2/05.05 ...
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... TA0105A Pinout AGND OVERLOADB MUTE 4 5 IN2 IN1 6 7 BBM0 8 BBM1 LO2 27 HO2COM 26 25 HO2 VNN 24 VPP 23 HO1 22 H01COM 21 LO1 20 19 TA0105A – RW/ Rev. 2.2/05.05 ...
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... Negative supply voltage sense input. This pin is biased at 1.25V nominally and left floating in typical applications. An external resistor may also be connected from VNN to VLOW to lower the supply voltage operation range. See the Application Information for a detailed description on how to lower the supply voltage range. TA0105A – RW/ Rev. 2.2/05.05 ...
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... O O 33uH 0.22uF 0.01:1W VNN 0.1uF + 220uF R FB 39.2K 39.2K: AGND VPP 0.1uF 220uF S 0.01: HBR HBR 1.0uF 0.1uF 33uH 0.22uF 0.01:1W VNN 0.1uF + 220uF R FB 39.2K 39.2K: AGND C VB 1000pF AGND TA0105A – RW/ Rev. 2.2/05. 15:10W 0.22uF R Z 15:10W 0.22uF ...
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... The value that the idle switching difference is greater than 40kHz. Please refer to the Application / Test Circuit. R Potentiometer used to manually trim the DC offset on the output of the TA0105A. OFA R Resistor that limits the manual DC offset trim range and allows for more precise OFB adjustment ...
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... C a high quality film capacitor capable of sustaining the ripple current caused by the switching outputs. C Supply decoupling for the power supply sensing pins. For optimum performance, VB these components should be located close to the TA0105A and returned to analog ground terminates the output filter at high Z ...
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... THD+N vs Output Voltage 10 VPP = |VNN| = +/-106V 25: L AES 17 FILTER 26k: FBC 1 0.5 % 0.2 0.1 0.05 0.02 0.01 50 100 200 1 2 Channel Separation 500 10k 20k Hz THD+N vs Frequency BW = 30kHz BW = 22kHz 500 10k 20k 7kHz f = 1kHz 50 100 200 V TA0105A – RW/ Rev. 2.2/05.05 ...
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... THD+N vs Output Voltage f =7kHz f =1kHz 100 V THD+N vs Output Voltage VPP = |VNN| = +/-175V VPP = |VNN| = +/-125V VPP = |VNN| = +/-150V 100 200 V THD+N vs Output Power VPP = |VNN| = +/-175V VPP = |VNN| = +/-125V VPP = |VNN| = +/-150V 100 200 500 TA0105A – RW/ Rev. 2.2/05.05 200 ...
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... Efficiency vs Output Power 25: L VPP = |VNN| = +/-148V THD < 1kHz BW = 22Hz - 20kHz(AES17) 200 300 400 500 Output Power (W) E fficiency vs O utput V oltage VPP = | +/-148V TH D < 1kH 22H z - 20kH z(AES17 25 100 O utput V oltage (Vrm s) TA0105A – RW/ Rev. 2.2/05.05 30k 600 120 ...
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... VPP and VNN. This signal is then low-pass filtered to obtain an amplified reproduction of the audio input signal. The processor portion of the TA0105A is operated from a 5-volt supply. In the generation of the switching patterns for the output MOSFETs, the processor inserts a “break-before-make” dead time between the turn-off of one transistor and the turn-on of the other in order to minimize shoot-through currents in the MOSFETs ...
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... The MOSFET drivers in the TA0105A are operated from voltages obtained from VN12 and LO1COM for the low-side driver, and bootstrap voltage (internally generated) and HO1COM for the high-side driver. VN12 must be a regulated 12V above VNN. N-Channel MOSFETs are used for both the top and bottom of the half bridge. The gate resistors, R used to control MOSFET slew rate and thereby minimize voltage overshoots ...
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... Refer to the Application / Test Circuit for a schematic description. TA 0105A TH ERMA L MANAGEMENT The bottom of the TA0105A module is a metal plate and serves as a heat sink for the internal MOSFET drivers. The temperature of this plate is directly related to the power dissipated in the output drivers. The power dissipated is broken up into two main areas, the VN12 power, and the power needed to charge the parasitic capacitances ...
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... TA 01 05A A MPL IF IER GA IN The gain of the TA0105A is the product of the input stage gain and the modulator gain. Please refer to the sections, Input Stage Design, and Modulator Feedback Design, for a complete explanation of how to determine the external component values VTA0105A VINPUTSTAG ...
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... Depending on the maximum supply voltage, the feedback ratio will need to be adjusted to maximize performance. The value of R internal to the TA0105A hybrid, (see explanation below) define the gain of the modulator. Once these values are chosen, based on the maximum supply voltage, the gain of the modulator will be fixed even as the supply voltage fluctuates due to current draw ...
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... There is a delay of approximately 200 milliseconds between the de-assertion of MUTE and the un-muting of the TA0105A. Please note that when the amplifier is in mute, the outputs are in a high impedance state and thus, the feedback resistors will set the output at approximately 2.5V without a load connected ...
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... IN1 and IN2 in the Application/Test Circuit. It should be noted that the DC voltage on the output of a TA0105A amplifier with no load in mute will not be zero. This offset does not need to be nulled. The output impedance of the amplifier in mute mode is approximately 40K : (R 1 ...
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... LTAG TEC T ION The TA0105A senses the power rails through the VPP and VNN pins on the module. These voltages are converted to currents by internal resistor networks connected to VLOW and VHIGH. The over- and under- voltage limits are determined by the internal bias currents, the values of the resistors in the networks, along with process variations ...
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... The usable (inside the hysteresis band) negative supply range is defined by VNN VNN . UVRSTMAX RVNN1 1000pF RVPP1 1000pF Figure 4: External Overvoltage and Undervoltage Shift 1.25 R 152 A VNN1 R VNN1 1 : 1.27M VNN1 R VNN1 1 : 1.27M TA0105A VNN 24 VNN 38 VLOW AGND VPP 23 VPP 37 VHIGH AGND minus OVRSTMIN TA0105A – RW/ Rev. 2.2/05.05 ...
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... VN1 2 SU PPL Y VN12 is an additional supply voltage required by the TA0105A. VN12 must be 12 volts more positive than the nominal VNN. VN12 must track VNN. Generating the VN12 supply requires some care. The proper way to generate the voltage for VN12 is to use a 12V-postive supply voltage referenced to the VNN supply ...
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... MOSFET in the final circuit. Thus, for TA0105A “typical” applications a mosfet with 500V rating is required. Ideally a low Qg (total gate charge) and low R Unfortunately, these are conflicting requirements since R MOSFET. The design trade-off is one of cost versus performance. A lower R losses but the associated higher Qg translates into higher switching losses (losses = 1.2MHz). ...
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... Thus, a high quality film capacitor is strongly recommended. The typical application of the TA0105A is driving “high impedance” loads from 12.5 ohms and above. This dictates the use of a larger value output inductor, L minimize in band output filter peaking and match better to the intended load impedance. ...
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... This information can be used to eliminate boost by putting the two channels of a TA0105A amplifier out of phase with each other. This works because each channel is pumping out of phase with the other, and the net effect is a cancellation of pumping currents in the power supply ...
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... Add the resistor dividers to both VLOW and VHIGH as shown in Figure 8. These resistors - lower the supply range of the TA0105A to roughly +/-59V to +/-93V, with a maximum undervoltage turn on voltage of +/-55V, assuming worse case tolerances. It should be noted that the TA0104A voltage specification of +/-55V to +/-92V were the undervoltage and overvoltage turn on points, not the inner hysteresis band. The “ ...
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... VNN TA0105A 1.21M 38 VLOW AGND VPP 1.33M 37 VHIGH AGND ). These capacitors stabilize the sensing circuit resulting in VB HBR ) and diode (D ) clamping structure O TA0105A – RW/ Rev. 2.2/05.05 ...
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... MAX 2087mil. (53mm) 5 1670mil. (42.4mm 565mil. (14.34mm) MAX 610mil (15.5mm) 336mil. 236mil. (8.54mm) (6mm) 30mil. (0.85mm) 100mil. (2.54mm) Phyco Socket: 4150-1 x 8SF1 4150-1 x 1SF1 11 position header female 2500mil. 750mil. (63.5mm) (19mm 2858mil. (72.6mm) MAX 2913mil. (74mm) 8 position header female TA0105A – RW/ Rev. 2.2/05. ...
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... 2560 Orchard Parkway, San Jose, CA 95131 408.750.3000 - P 408.750.3001 - F For more Sales Information, please visit us @ For more Technical Information, please visit www.tripath.com/cont_s.htm www.tripath.com/data.htm Other trademarks TA0105A – RW/ Rev. 2.2/05.05 ...