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BL6305

BELLING
Part Number BL6305
Manufacturer BELLING
Description 2.6 Watt Mono Filter-Free Class-D Audio Power Amplifier
Published Jul 20, 2015
Detailed Description BL6305 2.6 Watt Mono Filter-Free Class-D Audio Power Amplifier Features Efficiency With an 8-Ω Speaker: 88% at 400 mW 80...
Datasheet PDF File BL6305 PDF File

BL6305
BL6305

Overview
BL6305 2.
6 Watt Mono Filter-Free Class-D Audio Power Amplifier Features Efficiency With an 8-Ω Speaker: 88% at 400 mW 80% at 100 mW 2.
1mA Quiescent Current 0.
4µA Shutdown Current Optimized PWM Output Stage Eliminates LC Output Filter Internally Generated 250-kHz Switching Frequency Eliminates Capacitor and Resistor Improved PSRR (−75 dB) and Wide Supply Voltage (2.
5 V to 5.
5 V) Eliminates Need for a Voltage Regulator Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor Improved CMRR Eliminates Two Input Coupling Capacitors MSOP8, SOP8, DFN8 package General Description The BL6305 is a 2.
6W high efficiency filter-free class-D audio power amplifier that requires only three external components.
Features like 88% efficiency, −75dB PSRR, and improved RF-rectification immunity make the BL6305 ideal for cellular handsets.
In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the BL6305.
Applications Mobile phone、PDA MP3/4、PMP Portable electronic devices Order Information Part Number BL6305MM BL6305DN BL6305SO Pin Diagrams Package MSOP8 DFN8 SOP8 Shipping 3000 pcs / Tape & Reel 3000 pcs / Tape & Reel 2500 pcs / Tape & Reel http://www.
belling.
com.
cn - Page 1 of 9 - Ver1.
2 BL6305 Pin Description Pin # 1 2 3 4 5 6 7 8 Name SDB IN+ INVO+ VDD PGND VO- Description Shutdown terminal (low active) NC (No internal connection) Positive differential input Negative differential input Positive BTL output Power Supply Power Ground Negative BTL output Function Block Diagram Av1 = 170k/Ri 170k (4) IN- Amp1 (3) IN+ 170k (1) ShutDown SDB Control 300k Bias & Reference PWM Modulator and Power Driver Av2 = 2 V/V OSC & RAMP Start up & Protection OC Detect s: Total Voltage Gain = Av1 × Av2 = 2 × 170k RI Figure 1.
Function Block Diagram http://www.
belling.
com.
cn - Page 2 of 9 - (6) VDD (8) Vo(5) Vo+ (7) GND Note Ver1.
2 Application Circuit BL6305 Ri Differential Input Ri Vi- - + Vi+ + - PWM & BTL (Closed ...


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