TDF8546J

I2C-bus controlled 4 x 45 W best efficiency amplifier; Stop/start-car prepared: keeps operating without audible disturbance during enginestart at a battery voltage as low as 6 V\nNew best efficiency mode with patented low switching distortion\nExtreme best efficiency mode (uses information from 4 channels) with 17 % lessdissipation for uncorrelated signals compared to 2-channel best efficiency mode\nOperates in either legacy (non I²C-bus) or I²C-bus modes (3.3 V and 5 V compliant)\nFour hardware-programmable I²C-bus addresses\nCan drive 2 Ω and 4 Ω loads\nSpeaker fault detection\nStart-up diagnostics with load detection: open, short, present; filtered for door-slamand chatter relays\nAC load (tweeter) detection with low and high current mode\nGain select after start-up without audible disturbance\nIndependent selectable soft mute of front and rear channels\nProgrammable gain (26 dB and 16 dB), independently programmable for the front andrear channels\nLine driver mode supports engine start at a battery voltage as low as 6 V (16 dB andmid-tap voltage 0.25 VP)\nProgrammable clip detect: 2 %, 5 % or 10 %\nProgrammable thermal pre-warning\nPin STB can be programmed/multiplexed with second-clip detect\nClip information of each channel can be directed separately to pin DIAG or pin STB\nIndependent enabling of thermal-, clip- or load fault information (short across the loador to VP or to ground) on pin DIAG\nLoss-of-ground and open VP safe (minimum series resistance required)\nAll amplifier outputs short-circuit proof to ground, supply voltage and across the load(channel independent)\nAll pins short-circuit proof to ground\nTemperature controlled gain reduction to prevent audio holes at high junctiontemperatures\nProgrammable low battery voltage detection to enable 7.5 V or 6 V minimum batteryvoltage operation\nOvervoltage protection (load-dump safe up to VP = 50 V) with overvoltage pre-warningat 16 V\nOffset detection\n;

The TDF8546 is one of a new generation of complementary quad Bridge-Tied Load (BTL)audio power amplifiers intended for automotive applications. It has a best efficiency modewith full I²C-bus controlled diagnostics, including start-up diagnostics. The TDF8546 canoperate at a battery voltage as low as 6 V making this amplifier suitable for stop/start-caroperation.\nThe new best efficiency principle uses a patented switch technique which reducesswitching distortion. To reduce power dissipation, the new best efficiency principle usesthe audio information on all four channels instead of only the front or rear signals.Dissipation is more than 65 % less than standard BTL when used for front and rearcorrelated audio signals. Dissipation is 35 % less than standard BTL when used foruncorrelated (delayed) audio signals between front and rear, and 17 % less foruncorrelated audio signals when the front or rear information is used.\nThe amplifier uses a complementary DMOS output stage in a Silicon-On-Insulator (SOI)-based BCD process. The DMOS output stage ensures a high power output signal withperfect sound quality. The SOI-based BCD process ensures a robust amplifier, wherelatch-up cannot occur, with good separation between the four independent channels, withevery component isolated and without substrate currents.\n

恩XP

TDF8546JS

I2C-bus controlled 4 x 45 W best efficiency amplifier; Stop/start-car prepared: keeps operating without audible disturbance during enginestart at a battery voltage as low as 6 V\nNew best efficiency mode with patented low switching distortion\nExtreme best efficiency mode (uses information from 4 channels) with 17 % lessdissipation for uncorrelated signals compared to 2-channel best efficiency mode\nOperates in either legacy (non I²C-bus) or I²C-bus modes (3.3 V and 5 V compliant)\nFour hardware-programmable I²C-bus addresses\nCan drive 2 Ω and 4 Ω loads\nSpeaker fault detection\nStart-up diagnostics with load detection: open, short, present; filtered for door-slamand chatter relays\nAC load (tweeter) detection with low and high current mode\nGain select after start-up without audible disturbance\nIndependent selectable soft mute of front and rear channels\nProgrammable gain (26 dB and 16 dB), independently programmable for the front andrear channels\nLine driver mode supports engine start at a battery voltage as low as 6 V (16 dB andmid-tap voltage 0.25 VP)\nProgrammable clip detect: 2 %, 5 % or 10 %\nProgrammable thermal pre-warning\nPin STB can be programmed/multiplexed with second-clip detect\nClip information of each channel can be directed separately to pin DIAG or pin STB\nIndependent enabling of thermal-, clip- or load fault information (short across the loador to VP or to ground) on pin DIAG\nLoss-of-ground and open VP safe (minimum series resistance required)\nAll amplifier outputs short-circuit proof to ground, supply voltage and across the load(channel independent)\nAll pins short-circuit proof to ground\nTemperature controlled gain reduction to prevent audio holes at high junctiontemperatures\nProgrammable low battery voltage detection to enable 7.5 V or 6 V minimum batteryvoltage operation\nOvervoltage protection (load-dump safe up to VP = 50 V) with overvoltage pre-warningat 16 V\nOffset detection\n;

The TDF8546 is one of a new generation of complementary quad Bridge-Tied Load (BTL)audio power amplifiers intended for automotive applications. It has a best efficiency modewith full I²C-bus controlled diagnostics, including start-up diagnostics. The TDF8546 canoperate at a battery voltage as low as 6 V making this amplifier suitable for stop/start-caroperation.\nThe new best efficiency principle uses a patented switch technique which reducesswitching distortion. To reduce power dissipation, the new best efficiency principle usesthe audio information on all four channels instead of only the front or rear signals.Dissipation is more than 65 % less than standard BTL when used for front and rearcorrelated audio signals. Dissipation is 35 % less than standard BTL when used foruncorrelated (delayed) audio signals between front and rear, and 17 % less foruncorrelated audio signals when the front or rear information is used.\nThe amplifier uses a complementary DMOS output stage in a Silicon-On-Insulator (SOI)-based BCD process. The DMOS output stage ensures a high power output signal withperfect sound quality. The SOI-based BCD process ensures a robust amplifier, wherelatch-up cannot occur, with good separation between the four independent channels, withevery component isolated and without substrate currents.\n

恩XP

TDF8546TH

I2C-bus controlled 4 x 45 W best efficiency amplifier; Stop/start-car prepared: keeps operating without audible disturbance during enginestart at a battery voltage as low as 6 V\nNew best efficiency mode with patented low switching distortion\nExtreme best efficiency mode (uses information from 4 channels) with 17 % lessdissipation for uncorrelated signals compared to 2-channel best efficiency mode\nOperates in either legacy (non I²C-bus) or I²C-bus modes (3.3 V and 5 V compliant)\nFour hardware-programmable I²C-bus addresses\nCan drive 2 Ω and 4 Ω loads\nSpeaker fault detection\nStart-up diagnostics with load detection: open, short, present; filtered for door-slamand chatter relays\nAC load (tweeter) detection with low and high current mode\nGain select after start-up without audible disturbance\nIndependent selectable soft mute of front and rear channels\nProgrammable gain (26 dB and 16 dB), independently programmable for the front andrear channels\nLine driver mode supports engine start at a battery voltage as low as 6 V (16 dB andmid-tap voltage 0.25 VP)\nProgrammable clip detect: 2 %, 5 % or 10 %\nProgrammable thermal pre-warning\nPin STB can be programmed/multiplexed with second-clip detect\nClip information of each channel can be directed separately to pin DIAG or pin STB\nIndependent enabling of thermal-, clip- or load fault information (short across the loador to VP or to ground) on pin DIAG\nLoss-of-ground and open VP safe (minimum series resistance required)\nAll amplifier outputs short-circuit proof to ground, supply voltage and across the load(channel independent)\nAll pins short-circuit proof to ground\nTemperature controlled gain reduction to prevent audio holes at high junctiontemperatures\nProgrammable low battery voltage detection to enable 7.5 V or 6 V minimum batteryvoltage operation\nOvervoltage protection (load-dump safe up to VP = 50 V) with overvoltage pre-warningat 16 V\nOffset detection\n;

The TDF8546 is one of a new generation of complementary quad Bridge-Tied Load (BTL)audio power amplifiers intended for automotive applications. It has a best efficiency modewith full I²C-bus controlled diagnostics, including start-up diagnostics. The TDF8546 canoperate at a battery voltage as low as 6 V making this amplifier suitable for stop/start-caroperation.\nThe new best efficiency principle uses a patented switch technique which reducesswitching distortion. To reduce power dissipation, the new best efficiency principle usesthe audio information on all four channels instead of only the front or rear signals.Dissipation is more than 65 % less than standard BTL when used for front and rearcorrelated audio signals. Dissipation is 35 % less than standard BTL when used foruncorrelated (delayed) audio signals between front and rear, and 17 % less foruncorrelated audio signals when the front or rear information is used.\nThe amplifier uses a complementary DMOS output stage in a Silicon-On-Insulator (SOI)-based BCD process. The DMOS output stage ensures a high power output signal withperfect sound quality. The SOI-based BCD process ensures a robust amplifier, wherelatch-up cannot occur, with good separation between the four independent channels, withevery component isolated and without substrate currents.\n

恩XP

TDF8546_SDS_15

I2C-bus controlled 4 ??45 W best efficiency amplifier

PHI

TDF8546TH/N2Z

NXP/恩智浦
HSSOP36

恩XP