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TA3020 Datasheet(PDF) 6 Page - Tripath Technology Inc. |
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TA3020 Datasheet(HTML) 6 Page - Tripath Technology Inc. |
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6 / 29 page  TE CH NI C A L IN F O RM A T I O N 6 TA3020, Rev 2.1, 01.01 Pin Description Pin Function Description 1 VN10 “Floating” supply input for the FET drive circuitry. This voltage must be stable and referenced to VNN. 2,48 LO2, LO1 Low side gate drive output (Channel 2 & 1) 3,47 LO2COM, LO1COM Kelvin connection to source of low-side transistor (Channel 2 & 1) 4,46 HO2COM, HO1COM Kelvin connection to source of high-side transistor (Channel 2 & 1) 5,45 HO2, HO1 High side gate drive output (Channel 2 & 1) 6, 7 OCS2LN, OCS2LP Over Current Sense inputs, Channel 2 low-side 8, 9 OCS2HP, OCS2HN Over Current Sense inputs, Channel 2 high-side 10, 40 VBOOT2, VBOOT1 Bootstrapped voltage to supply drive to gate of high-side FET (Channel 2 & 1) 12, 31 OCR2 Over-current threshold adjustment (Channel 2) 13, 16 FBKOUT1, FBKOUT2 Switching feedback (Channels 1 & 2) 14, 18 FBKGND1, FBKGND2 Ground Kelvin feedback (Channels 1 & 2) 15 HMUTE Logic Output. A logic high indicates both amplifiers are muted, due to the mute pin state, or a “fault” such as an overcurrent, undervoltage, or overvoltage condition. 17 DCOMP Internal mode selection. This pin must be grounded for proper device operation. 19 BIASCAP Bandgap reference times two (typically 2.5VDC). Used to set the common mode voltage for the input op amps. This pin is not capable of driving external circuitry. 20, 25 INV2, INV1 Inverting inputs of Input Stage op amps. (Channels 2 & 1) 21, 26 OAOUT2, OAOUT1 Outputs of Input Stage op amps. (Channels 2 & 1) 22, 23 BBM0, BBM1 Break-before-make timing control to prevent shoot-through in the output FETs. 24 MUTE Logic input. A logic high puts the amplifier in mute mode. Ground pin if not used. Please refer to the section, Mute Control, in the Application Information. 27, 35 V5 5V power supply input. 28,34 AGND Analog ground. 29 VPPSENSE Positive supply voltage sense input. This pin is used for both over and under voltage sensing for the VPP supply. 30 VNNSENSE Negative supply voltage sense input. This pin is used for both over and under voltage sensing for the VNN supply. 32 REF Used to set internal bias currents. The pin voltage is typically 1.1V. 33, 37 OCR1 Over-current threshold adjustment (Channel 1) 39 VNN Negative supply voltage. 41, 42 OCS1LN, OCS1LP Over Current Sense inputs, Channel 1 low-side 43, 44 OCS1HP, OCS1HN Over Current Sense inputs, Channel 1 high-side 11, 36, 38 NC Not connected (bonded) internally. To minimize coupling between pins, tie these pins to AGND (pin34). |
Número de pieza similar - TA3020 |
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Descripción similar - TA3020 |
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