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TFA9842BJ
General description
The TFA9842BJ contains two identical audio power amplifiers. The TFA9842BJ can be used as two Single-Ended (SE) channels with a fixed gain of 26 dB.
The TFA9842BJ comes in a 9-pin DIL-bent-SIL (DBS9P) power package. The TFA9842BJ is pin compatible with the TFA9841J, TFA9842J, TFA9843J and the TFA9843BJ.
The TFA9842BJ 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 (number of channels used, external heatsink and ambient temperature) allow it.
Features
- 1 W to 7.5 W operation possibility
- Soft clipping
- Standby and mute mode
- No on or 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 TFA9841J, TFA9842J, TFA9843J and the TFA9843BJ.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| TFA9842BJ/N1 | TFA9842BJ | 9352 757 85112 | Volume production | SOT523-1
(DBS9P) | Tube | Standard Marking | TFA9842BJ/N1
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| TFA9842BJ/N1 | 9352 757 85112 | NA | DIGI-KEY CORPORATION | 2,826 | 11/29/2008 | Buy online | Order samples | |
| NA | MOUSER ELECTRONICS | 108 | 11/29/2008 | Buy online |
Applications
- Televisions
- Monitors
- PC speakers
- Boom boxes
- Mini and micro audio receivers.
Related applications
50-60 Hz CRT integrated DTV (TV210D)
DVB-T iDTV reference solution (TV505D)
Mid-range integrated DTV (TV810)
Mainstream integrated LCD DTV reference designs TV520
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