STABP01 Datasheet | STMicroelectronics

DESCRIPTION The STABP01 processor is used to control the BASH® Digital Converter. When used in conjunction with BASH® amplifiers a fully integrated high efficiency power amplifier is realized. By analyzing the audio input, the Processor determines the appropriate on/off events and generates a digital pulse for the Digital Converter. The converter turns this pulse into a power signal that feeds the power amplifier. The feedback system allows the processor to constantly adapt to the audio signal and regenerate the digital pulse thereby maintaining a constant voltage across the output devices. BLOCK DIAGRAM UVLO: 7V = on 5V = off + + SOFT SWITCH 250Hz 1V CLOCK Ct P V+ VFB + 2R P/3 R + CURRENT SENSE PARATOR CURRENT_SENSE DISCHARGE (RESET) TRANSISTOR 1V + CLK Q D Q + S Q R Q PWM LATCH GROUND2 1V OUTPUT ERROR AMP 1V + + GROUND1 SOFT SW RESET 1V DEAD TIME POWER_VS2 S R OUTPUT Q Q 1V POWER SUPPLY1 10V DIP20 SO20 ORDERING NUMBERS: STABP01 (DIP20) STABP01D (SO20) Q VREF 10V Rt 1V INTERNAL CIRCUIT ON 1V RESET FA IN BUFFER IN + BUFFER FAST ATTACK + CONTROL 17R ONE SHOT SIGNAL CLK 10V D Q Q 1V + OPEN DRAIN OUTPUT ONE SHOT DELAY 10V R BUFFER OUT + - RESET 1V REC_OUT 1V 2200p F 50K 2200p F ONE SHOT 1V 20K C51 DUTY ACCEL R162 10V D00AU1219 December 2002 1/7 Free Datasheet http://.. ABSOLUTE MAXIMUM RATINGS Symbol Vs Io Eo Vi Io Ptot Tstg TL Top Supply Voltage Output Current Output Energy(capacitive load) Analog Input Voltage Error Amplifier Output Sink Current Power Dissipation at Tamb Storage Ambient Temperature Lead Temperature (soldering 10s) Operating Temperature Range Parameter Value 10.5 ±0.6 5 -0.3 to 8 10 500 -65 to 150 300 -25 to 85 Unit V A µJ V m A m W °C °C °C THERMAL DATA Symbol Rth j-amb Parameter Thermal Resistance junction-ambient soldered on PCB SO20 95 DIP20 90 Unit °C/W PIN CONNECTION BUFFER OUT VFB V+ P CURRENT SENSE DEAD TIME POWER SUPPLY2 MAIN OUTPUT GROUND2 CLOCK(RT/CT) 1 2 3 4 5 6 7 8 9 10 D00AU1217B 20 19 18 17 16 15...