TFA9841J

Common Mode Rejection Ratio (Min) :
Supply Current :
Packaging : Tube
THD plus Noise : 0.1 %
Maximum Operating Temperature : + 85 C
Mounting Style : Through Hole
Output Type : 1-Channel Mono
Product : Class-AB
Available Set Gain : 26 dB
Package / Case : DBSP
Output Power : 7.5 W
Operating Supply Voltage : 17 V
Maximum Power Dissipation : 8000 mW


Features:

·SE: 1 W to 7.5 W (into 4 W), up to 9 W into (into 8 W)
·Soft clipping
·Standby and mute mode
·No on/off switching plops
·Low standby current
·High supply voltage ripple rejection
·Outputs short-circuit protected to ground, supply and across the load
·Thermally protected
·Pin compatible with the TFA9842J and TFA9843J.


Application

·Television
·PC speakers
·Boom box
·Mini and micro audio receivers.


Pinout




Specifications

Symbol	Parameter	Conditions	Min	Max	Unit
VCC	supply voltage	operating	-0.3	+26	V
		no signal	-0.3	+28	V
VI	input voltage		-0.3	VCC + 0.3	V
IORM	repetitive peak output current		-	3	A
Tstg	storage temperature	non-operating	-55	+150	°C
Tamb	ambient temperature	operating	-40	+85	°C
Ptot	total power dissipation		-	8	W
VCC(sc)	supply voltage to guarantee short-circuit protection		-	24	V

Description

The TFA9841J contains one audio power amplifier. The TFA9841J can be used as one Single-Ended (SE) channel with a fixed gain of 26 dB.

The TFA9841J comes in a 9-pin DIL-bent-SIL (DBS9P) power package. The TFA9841J is pin compatible with the TFA9842J and TFA9843J.

The TFA9841J contains a unique protection circuit that is solely based on multiple temperature measurements inside the chip. This gives maximum output power for all supply voltages and load conditions with no unnecessary audio holes. Almost any supply voltage and load impedance combination can be made as long as thermal boundary conditions (external heatsink and ambient temperature) allow it.