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BL6306MM

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BL Shanghai Belling Audio Amplifiers, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BL6306MM

BL Shanghai Belling · Audio Amplifiers · MSOP-8

BL6306MM from BL Shanghai Belling, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 SDB input Shutdown terminal, active low: VSDIH is 1.3 V minimum and VSDIL is 0.4 V maximum, with a 300 kΩ resistance from SDB to GND.
2 NC unconnected No internal connection.
3 IN+ input Positive differential input with 150 kΩ typical input impedance (135 to 165 kΩ), which can be biased from 0.5 V to VDD − 0.8 V without an input coupling capacitor.
4 IN- input Negative differential input; the datasheet recommends 1% tolerance input resistors or better to keep CMRR, PSRR and distortion performance optimized.
5 VO+ output Positive BTL output that drives the speaker together with VO-.
6 VDD power_in Power supply, 2.5 V to 5.5 V, to be decoupled with a low-ESR ceramic CS of 2 µF placed as close as possible to the VDD pin.
7 PGND power_in Power ground for the output stage.
8 VO- output Negative BTL output that drives the speaker together with VO+.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package MSOP-8
Category Amplifiers/Comparators
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage -0.3 6 V 4
Input Voltage -0.3 V upper limit printed as VDD+0.3V 4
Storage Temperature -65 150 ℃ 4
Operating Temperature Range -40 85 ℃ 4
Supply Voltage (wide supply range) 2.5 5.5 V 1
Shutdown Current ISD 0.4 2 uA VIN=0V, VSDB=0V, No Load 4
Quiescent Current IQ 2.2 3.2 mA VDD = 2.5V, VIN = 0V, No Load 4
Quiescent Current IQ 3.8 8 mA VDD = 5.5V, VIN = 0V, No Load 4
Output Offset Voltage VOS 2 25 mV VIN = 0V, AV = 2V/V, VDD = 2.5V to 5.5V 4
Modulation frequency FSW 200 250 300 kHz VDD = 2.5V to 5.5V 4
Input impedance ZI 135 150 165 kΩ 4
Shutdown Voltage Input High VSDIH 1.3 V 4
Shutdown Voltage Input Low VSDIL 0.4 V 4
Quiescent Current IQ 2.6 mA VDD = 3.6V, VIN = 0V, No Load 4
Power Supply Rejection Ratio PSRR -75 dB VDD = 2.5V to 5.5V 4
Common Mode Rejection Ratio CMRR -68 dB VDD = 2.5V to 5.5V, VIC = VDD/2 to 0.5V, VIC = VDD/2 to VDD - 0.8V 4
Resistance from SDB to GND RSDB 300 kΩ 4
Wake-up time from shutdown TWU 32 mS VDD = 3.6V 4
Drain-Source resistance (on-state) rDS(on) 700 mΩ VDD = 2.5V 4
Drain-Source resistance (on-state) rDS(on) 500 mΩ VDD = 3.6V 4
Drain-Source resistance (on-state) rDS(on) 400 mΩ VDD = 5.5V 4
Output Power PO 2.6 W VDD = 5V, THD+N=10%, f=1KHz, RL = 4Ω 5
Output Power PO 2.1 W VDD = 5V, THD+N=1%, f=1KHz, RL = 4Ω 5
Output Power PO 1.6 W VDD = 5V, THD+N=10%, f=1KHz, RL = 8Ω 5
Output Power PO 1.3 W VDD = 5V, THD+N=1%, f=1KHz, RL = 8Ω 5
Total Harmonic Distortion + Noise THD+N 0.21 % VDD = 5V, Po=1.0Wrms, f=1kHz, RL = 8Ω 5
Signal-to-Noise ratio SNR 91 dB VDD=5V, Po=1.0Wrms, RL = 8Ω 5
Output Power PO 1.35 W VDD = 3.6V, THD+N=10%, f=1KHz, RL = 4Ω 5
Output Power PO 1.08 W VDD = 3.6V, THD+N=1%, f=1KHz, RL = 4Ω 5
Output Power PO 0.85 W VDD = 3.6V, THD+N=10%, f=1KHz, RL = 8Ω 5
Output Power PO 0.69 W VDD = 3.6V, THD+N=1%, f=1KHz, RL = 8Ω 5
Supply ripple rejection ratio KSVR -65 dB VDD = 3.6V, input ac-grounded with CI = 2uF, f=217Hz, V(Ripple)=200mVPP 5
Output voltage noise (no weighting) Vn 100 uVRMS VDD = 3.6V, input ac-grounded with CI = 2uF, f=20~20kHz, No weighting 5
Output voltage noise (A weighting) Vn 75 uVRMS VDD = 3.6V, input ac-grounded with CI = 2uF, f=20~20kHz, A weighting 5
Common Mode Rejection Ratio CMRR -70 dB VDD = 3.6V, VIC = 1 VPP, f=217Hz 5
Output Power PO 0.6 W VDD = 2.5V, THD+N=10%, f=1KHz, RL = 4Ω 5
Output Power PO 0.51 W VDD = 2.5V, THD+N=1%, f=1KHz, RL = 4Ω 5
Output Power PO 0.4 W VDD = 2.5V, THD+N=10%, f=1KHz, RL = 8Ω 5
Output Power PO 0.33 W VDD = 2.5V, THD+N=1%, f=1KHz, RL = 8Ω 5

CAD (KiCad official)

  • Symbol: BL6306MM
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: bl6306mm-etched.step / bl6306mm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl6306mm.step / bl6306mm.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: BL Shanghai Belling datasheet (10 pp, sha256 d8a473d0833df496, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF