TDA8588AJ/R1CU – Amplifier and Multiple Voltage Regulator
Power Amplifier and Multiple Voltage Regulator
Package SIP 37 Pin Type
TDA8588AJ/R1CU overview
The TDA8588 has a complementary quad audio power amplifier that uses BCDMOS technology. It contains four amplifiers configured in Bridge Tied Load (BTL) to drive speakers for front and rear left and right channels. The I2C-bus allows diagnostic information of each amplifier and its speaker to be read separately. Both front and both rear channel amplifiers can be configured independently in line driver mode with a gain of 20 dB (differential output).
Datasheet
tda8588j-datasheet.pdf
TDA8588AJ/R1CU features
- Amplifiers
- I2C-bus control
- Can drive a 2 W load with a battery voltage of up to 16 V and a 4 W load with a battery voltage of up to 18 V
- DC load detection, open, short and present
- AC load (tweeter) detection
- Programmable clip detect; 1 % or 4 %
- Programmable thermal protection pre-warning
- Independent short-circuit protection per channel
- Low gain line driver mode (20 dB)
- Loss-of-ground and open VP safe
- All outputs protected from short-circuit to ground, to VP or across the load
- All pins protected from short-circuit to ground
- Soft thermal-clipping to prevent audio holes
- Low battery detection.
- Voltage regulators GENERAL
- GENERAL
- Good stability for any regulator with almost any output capacitor value
- Five voltage regulators (microcontroller, display, mechanical digital, mechanical drive and audio)
- Choice of non-adjustable 3.3 or 5 V microcontroller supply (REG2) versions reducing risk of overvoltage damage
- Choice of non-adjustable 3.3 or 5 V digital signal processor supply (REG3) versions reducing risk of overvoltage damage
- Selectable output voltages for regulators 1, 4 and 5
- Low dropout voltage PNP output stages
- High supply voltage ripple rejection
- Low noise for all regulators
- Two power switches (antenna switch and amplifier switch)
- Regulator 2 (microcontroller supply) operational during load-dump and thermal shut-down
- Low quiescent current (only regulator 2 is operational)
- Reset output (push-pull output stage)
- Adjustable reset delay time
- Backup functionality.
- PROTECTION
- If connection to the battery voltage is reversed, all regulator voltages will be zero
- Able to withstand voltages at the output of up to 18 V (supply line may be short-circuited)
- Thermal protection to avoid thermal breakdown
- Load-dump protection
- Regulator outputs protected from DC short-circuit to ground or to supply voltage
- All regulators protected by foldback current limiting
- Power switches protected from loss-of-ground
TDA8588AJ/R1CU pinout
| Pin | Name | Description |
|---|---|---|
| 1 | PGND2/TAB | power ground 2 and connection for heatsink |
| 2 | SDA | I2C-bus data input and output |
| 3 | OUT3- | channel 3 negative output |
| 4 | SCL | I2C-bus clock input |
| 5 | OUT3+ | channel 3 positive output |
| 6 | VP2 | power supply voltage 2 to amplifier |
| 7 | OUT1- | channel 1 negative output |
| 8 | PGND1 | power ground 1 |
| 9 | OUT1+ | channel 1 positive output |
| 10 | SVR | half supply voltage filter capacitor |
| 11 | IN1 | channel 1 input |
| 12 | IN3 | channel 3 input |
| 13 | SGND | signal ground |
| 14 | IN4 | channel 4 input |
| 15 | IN2 | channel 2 input |
| 16 | ACGND | AC ground |
| 17 | OUT2+ | channel 2 positive output |
| 18 | PGND3 | power ground 3 |
| 19 | OUT2- | channel 2 negative output |
| 20 | VP1 | power supply voltage 1 to amplifier |
| 21 | OUT4+ | channel 4 positive output |
| 22 | STB | standby or operating or mute mode select input |
| 23 | OUT4- | channel 4 negative output |
| 24 | PGND4 | power ground 4 |
Show all 37 pins
| Pin | Name | Description |
|---|---|---|
| 25 | DIAG | diagnostic and clip detection output, active LOW |
| 26 | RST | reset output |
| 27 | SW2 | antenna switch; supplies unregulated power to car aerial motor |
| 28 | RESCAP | reset delay capacitor |
| 29 | SW1 | amplifier switch; supplies unregulated power to amplifier(s) |
| 30 | REG1 | regulator 1 output; supply for audio part of radio and CD player |
| 31 | REG3 | regulator 3 output; supply for signal processor part (mechanical digital) of CD player |
| 32 | GND | combined voltage regulator, power and signal ground |
| 33 | REG4 | regulator 4 output; supply for mechanical part (mechanical drive) of CD player |
| 34 | REG5 | regulator 5 output; supply for display part of radio and CD player |
| 35 | VP | power supply to voltage regulator |
| 36 | BUCAP | connection for backup capacitor |
| 37 | REG2 | regulator 2 output; supply voltage to microcontroller |
TDA8588AJ/R1CU applications
- Boost amplifier and voltage regulator for car radios and CD/MD players.
Comments 0
Leave a comment