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TDA8594
Datasheet
General description
The TDA8594 is a complementary quad Bridge Tied Load (BTL) audio power amplifier made in BCDMOS technology. It contains four independent amplifiers in BTL configuration. Through the I2C-bus, diagnosis of temperature warning and clipping level is fully programmable and the information available via two diagnostic pins is selectable. The status of each amplifier (output offset, load or no load, short-circuit or speaker incorrectly connected) can be read separately.
Features
General
- Operates in legacy mode (non I2C-bus) and I2C-bus mode (3.3 V and 5 V compliant)
- Three hardware-programmable I2C-bus addresses
- Drives 4 Ohm or 2 Ohm loads
- Speaker fault detection
- Independent short-circuit protection per channel
- Loss of ground and open VP safe (with 200 mOhm series impedance and a supply decoupling capacitor of 2200 uF maximum)
- All outputs short-circuit proof to ground, supply voltage and across the load
- All pins short-circuit proof to ground
- Temperature-controlled gain reduction to prevent audio holes at high junction temperatures
- Low battery voltage detection
- Offset detection
- This part has been qualified in accordance with AEC-Q100
I2C-bus mode
- DC load detection: open-circuit, short-circuit and load present
- AC load (tweeter) detection
- During start-up, can detect which load is connected so the appropriate gain can be selected without audio pop
- Independently selectable soft mute of front channels (channel 1 and channel 3) and rear channels (channel 2 and channel 4)
- Programmable gain (26 dB and 16 dB) of front channels (channel 1 and channel 3) and rear channels (channel 2 and channel 4)
- Fully programmable diagnostic levels can be set:
- Programmable clip detection: 2 pct, 5 pct or 10 pct
- Programmable thermal pre-warning
- Selectable information on the DIAG and STB pins:
- The STB pin can be programmed/multiplexed with second clip detection
- Clip information of each channel can be directed separately to the DIAG pin or the STB pin
- Independent enabling of thermal, clip or load fault detection (short across or to VP or to ground) on DIAG pin
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| TDA8594J/N1 | TDA8594J/N1 | 9352 748 57112 | Volume production | SOT827-1
(DBS27P) | Tube | Standard Marking | TDA8594J/N1
| Always Pb-free |
| TDA8594SD/N1 | TDA8594SD/N1 | 9352 794 67112 | Volume production | SOT878-1
(RDBS27P) | Tube | Standard Marking | TDA8594SD/N1
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| TDA8594J/N1 | 9352 748 57112 | Order samples | ||||||
| TDA8594SD/N1 | 9352 794 67112 | Order samples |
Applications
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
Parametrics/similar products
| Type number | Package | REMARKS | Supply voltage(V) | RMS power(W) | Gain(dB) | Channel config. | Car audio |
|---|---|---|---|---|---|---|---|
| TDA8594J/N1 | SOT827-1
(DBS27P) | I2C Bus diagnostic | 8~18 | 4 x 28 | 26 | BTL/quad | yes |
| TDA8594SD/N1 | SOT878-1
(RDBS27P) | I2C Bus diagnostic | 8~18 | 4 x 28 | 26 | BTL/quad | yes |
Similar products
TDA8594
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The similar products page includes products from the same catalog tree(s),
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